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The OsEIL1–OsWOX11 transcription factor module controls rice crown root development in response to soil compaction Plant Cell (IF 11.6) Pub Date : 2024-03-15 Yuxiang Li, Juan Wang, Yadi Gao, Bipin K Pandey, Lucas León Peralta Ogorek, Yu Zhao, Ruidang Quan, Zihan Zhao, Lei Jiang, Rongfeng Huang, Hua Qin
Optimizing the root architecture of crops is an effective strategy for improving crop yields. Soil compaction is a serious global problem that limits crop productivity by restricting root growth, but the underlying molecular mechanisms are largely unclear. Here, we show that ethylene stimulates rice (Oryza sativa) crown root development in response to soil compaction. First, we demonstrate that compacted
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The biogenesis and maintenance of photosystem II: recent advances and current challenges Plant Cell (IF 11.6) Pub Date : 2024-03-14 Josef Komenda, Roman Sobotka, Peter J Nixon
The growth of plants, algae and cyanobacteria relies on the catalytic activity of the oxygen-evolving photosystem two (PSII) complex which uses solar energy to extract electrons from water to feed into the photosynthetic electron transport chain. PSII is proving to be an excellent system to study how large multi-subunit membrane-protein complexes are assembled in the thylakoid membrane and subsequently
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Chloroplast ATP synthase: from structure to engineering Plant Cell (IF 11.6) Pub Date : 2024-03-14 Thilo Rühle, Dario Leister, Viviana Pasch
F-type ATP synthases are extensively researched protein complexes because of their widespread and central role in energy metabolism. Progress in structural biology, proteomics, and molecular biology has also greatly advanced our understanding of the catalytic mechanism, post-translational modifications, and biogenesis of chloroplast ATP synthases. Given their critical role in light-driven ATP generation
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A gradient of the HD-Zip regulator Woolly regulates multicellular trichome morphogenesis in tomato Plant Cell (IF 11.6) Pub Date : 2024-03-12 MinLiang Wu, XinXin Bian, ShouRong Hu, BenBen Huang, JingYuan Shen, YaDi Du, YanLi Wang, MengYuan Xu, HuiMin Xu, MeiNa Yang, Shuang Wu
Homeodomain (HD) proteins regulate embryogenesis in animals such as the fruit fly (Drosophila melanogaster), often in a concentration-dependent manner. HD-leucine zipper (Zip) IV family genes are unique to plants and often function in the L1 epidermal cell layer. However, our understanding of the roles of HD-Zip IV family genes in plant morphogenesis is limited. In this study, we investigated the morphogenesis
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Evidence for an RNAi-independent role of Arabidopsis DICER-LIKE2 in growth inhibition and basal antiviral resistance Plant Cell (IF 11.6) Pub Date : 2024-03-11 Carsten Poul Skou Nielsen, Laura Arribas-Hernández, Lijuan Han, Marlene Reichel, Jakob Woessmann, Rune Daucke, Simon Bressendorff, Diego López-Márquez, Stig Uggerhøj Andersen, Nathan Pumplin, Erwin M Schoof, Peter Brodersen
Flowering plant genomes encode four or five DICER-LIKE (DCL) enzymes that produce small interfering RNAs (siRNAs) and microRNAs which function in RNA interference (RNAi). Different RNAi pathways in plants effect transposon silencing, antiviral defense and endogenous gene regulation. DCL2 acts genetically redundantly with DCL4 to confer basal antiviral defense. However, DCL2 may also counteract DCL4
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Proteolytic control of the RNA silencing machinery Plant Cell (IF 11.6) Pub Date : 2024-03-08 Pascal Genschik, Marlene Schiaffini, Esther Lechner
Studies in plants were often pioneering in the field of RNA silencing and revealed a broad range of small RNA (sRNA) categories. When associated with ARGONAUTE (AGO) proteins, sRNAs play important functions in development, genome integrity, stress responses, and antiviral immunity. Today, most of the protein factors required for the biogenesis of sRNA classes, their amplification through the production
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ENHANCER OF SHOOT REGENERATION1 promotes de novo root organogenesis after wounding in Arabidopsis leaf explants Plant Cell (IF 11.6) Pub Date : 2024-03-06 Kyounghee Lee, Hobin Yoon, Ok-Sun Park, Pil Joon Seo
Plants have an astonishing ability to regenerate new organs after wounding. Here, we report that the wound-inducible transcription factor ENHANCER OF SHOOT REGENERATION1 (ESR1) has a dual mode of action in activating ANTHRANILATE SYNTHASE ALPHA SUBUNIT1 (ASA1) expression to ensure auxin-dependent de novo root organogenesis locally at wound sites of Arabidopsis (Arabidopsis thaliana) leaf explants.
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Rapid depletion of target proteins in plants by an inducible protein degradation system Plant Cell (IF 11.6) Pub Date : 2024-03-06 Linzhou Huang, Marcela Rojas-Pierce
Inducible protein knockdowns are excellent tools to test the function of essential proteins in short time scales and to capture the role of proteins in dynamic events. Current approaches destroy or sequester proteins by exploiting plant biological mechanisms such as the activity of photoreceptors for optogenetics or auxin-mediated ubiquitination in auxin degrons. It follows that these are not applicable
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Heat-induced SUMOylation differentially affects bacterial effectors in plant cells Plant Cell (IF 11.6) Pub Date : 2024-03-06 Wenliang Li, Wen Liu, Zewei Xu, Chengluo Zhu, Danlu Han, Jianwei Liao, Kun Li, Xiaoyan Tang, Qi Xie, Chengwei Yang, Jianbin Lai
Bacterial pathogens deliver effectors into host cells to suppress immunity. How host cells target these effectors is critical in pathogen–host interactions. SUMOylation, an important type of posttranslational modification in eukaryotic cells, plays a critical role in immunity, but its effect on bacterial effectors remains unclear in plant cells. In this study, using bioinformatic and biochemical approaches
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Nonspecific phospholipases C3 and C4 interact with PIN-FORMED2 to regulate growth and tropic responses in Arabidopsis Plant Cell (IF 11.6) Pub Date : 2024-03-05 Teng Li, Shujuan Zhang, Shuaibing Yao, Xuebing Li, Qianru Jia, Jingya Yuan, Wenhua Zhang, Xuemin Wang, Qun Zhang
The dynamic changes in membrane phospholipids affect membrane biophysical properties and cell signaling, thereby influencing numerous biological processes. Nonspecific phospholipase C (NPC) enzymes hydrolyze common phospholipids to release diacylglycerol (DAG), which is converted to phosphatidic acid (PA) and other lipids. In this study, two Arabidopsis (Arabidopsis thaliana) tandemly arrayed genes
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OPEN STOMATA1 phosphorylates CYCLIC NUCLEOTIDE-GATED CHANNELs to trigger Ca2+ signaling for ABA-induced stomatal closure in Arabidopsis Plant Cell (IF 11.6) Pub Date : 2024-03-05 Yang Yang, Yan-Qiu Tan, Xinyong Wang, Jia-Jun Li, Bo-Ya Du, Meijun Zhu, Pengcheng Wang, Yong-Fei Wang
Multiple cyclic nucleotide-gated channels (CNGCs) are abscisic acid (ABA)-activated Ca2+ channels in Arabidopsis (Arabidopsis thaliana) guard cells. In particular, CNGC5, CNGC6, CNGC9, and CNGC12 are essential for ABA-specific cytosolic Ca2+ signaling and stomatal movements. However, the mechanisms underlying ABA-mediated regulation of CNGCs and Ca2+ signaling are still unknown. In this study, we identified
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Identification and functional characterization of conserved cis-regulatory elements responsible for early fruit development in cucurbit crops Plant Cell (IF 11.6) Pub Date : 2024-02-29 Hongjia Xin, Xin Liu, Sen Chai, Xueyong Yang, Hongbo Li, Bowen Wang, Yuanchao Xu, Shengnan Lin, Xiaoyun Zhong, Bin Liu, Zefu Lu, Zhonghua Zhang
A number of cis-regulatory elements (CREs) conserved during evolution have been found to be responsible for phenotypic novelty and variation. Cucurbit crops such as cucumber (Cucumis sativus), watermelon (Citrullus lanatus), melon (Cucumis melo) and squash (Cucurbita maxima) develop fruits from an inferior ovary and share some similar biological processes during fruit development. Whether conserved
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Brassinosteroid-dependent phosphorylation of PHOSPHATE STARVATION RESPONSE2 reduces its DNA-binding ability in rice Plant Cell (IF 11.6) Pub Date : 2024-02-28 Guoxia Zhang, Hongru Wang, Xiangle Ren, Yunhua Xiao, Dapu Liu, Wenjing Meng, Yahong Qiu, Bin Hu, Qingjun Xie, Chengcai Chu, Hongning Tong
Brassinosteroids (BRs) are widely used as plant growth regulators in modern agriculture. Understanding how BRs regulate nutrient signaling is crucial for reducing fertilizer usage. Here we elucidate that the central BR signaling inhibitor GSK3/SHAGGY-LIKE KINASE2 (GSK2) interacts directly with and phosphorylates PHOSPHATE STARVATION RESPONSE2 (OsPHR2), the key regulator of phosphate (Pi) signaling
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Integrative omics analysis elucidates the genetic basis underlying seed weight and oil content in soybean Plant Cell (IF 11.6) Pub Date : 2024-02-27 Xiaobo Yuan, Xinyu Jiang, Mengzhu Zhang, Longfei Wang, Wu Jiao, Huatao Chen, Junrong Mao, Wenxue Ye, Qingxin Song
Synergistic optimization of key agronomic traits by traditional breeding has dramatically enhanced crop productivity in the past decades. However, the genetic basis underlying coordinated regulation of yield- and quality-related traits remains poorly understood. Here, we dissected the genetic architectures of seed weight and oil content by combining genome-wide association studies (GWAS) and transcriptome-wide
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Arabidopsis as a model for translational research Plant Cell (IF 11.6) Pub Date : 2024-02-27 Anna E Yaschenko, Jose M Alonso, Anna N Stepanova
Arabidopsis thaliana is currently the most-studied plant species on earth, with an unprecedented number of genetic, genomic, and molecular resources having been generated in this plant model. In the era of translating foundational discoveries to crops and beyond, we aimed to highlight the utility and challenges of using Arabidopsis as a reference for applied plant biology research, agricultural innovation
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The landscape of transcription factor promoter activity during vegetative development in Marchantia Plant Cell (IF 11.6) Pub Date : 2024-02-23 Facundo Romani, Susanna Sauret-Güeto, Marius Rebmann, Davide Annese, Ignacy Bonter, Marta Tomaselli, Tom Dierschke, Mihails Delmans, Eftychios Frangedakis, Linda Silvestri, Jenna Rever, John L Bowman, Ignacio Romani, Jim Haseloff
Transcription factors (TFs) are essential for the regulation of gene expression and cell fate determination. Characterising the transcriptional activity of TF genes in space and time is a critical step towards understanding complex biological systems. The vegetative gametophyte meristems of bryophytes share some characteristics with the shoot apical meristems of flowering plants. However, the identity
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An auxin research odyssey: 1989-2023 Plant Cell (IF 11.6) Pub Date : 2024-02-21 Jerry D Cohen, Lucia C Strader
The phytohormone auxin is at times called the master regulator of plant processes and has been shown to be a central player in embryo development, the establishment of the polar axis, early aspects of seedling growth, as well as growth and organ formation during later stages of plant development. The Plant Cell has been key, since the inception of the journal, to developing an understanding of auxin
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Genome organization and botanical diversity Plant Cell (IF 11.6) Pub Date : 2024-02-21 Andrew H Paterson, Christine Queitsch
The rich diversity of angiosperms, both the planet’s dominant flora and the cornerstone of agriculture, is integrally intertwined with a distinctive evolutionary history. Here, we explore the interplay between angiosperm genome organization and botanical diversity, empowered by genomic approaches ranging from genetic mapping to analysis of gene regulation. Commonality in the genetic hardware of plants
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Not so hidden anymore: Advances and challenges in understanding root growth under water deficits Plant Cell (IF 11.6) Pub Date : 2024-02-21 Priya Voothuluru, Yajun Wu, Robert E Sharp
Limited water availability is a major environmental factor constraining plant development and crop yields. One of the prominent adaptations of plants to water deficits is the maintenance of root growth that enables sustained access to soil water. Despite early recognition of the adaptive significance of root growth maintenance under water deficits, progress in understanding has been hampered by the
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CO-EXPRESSED WITH PSI ASSEMBLY1 (CEPA1) is a photosystem I assembly factor in Arabidopsis Plant Cell (IF 11.6) Pub Date : 2024-02-21 David Rolo, Omar Sandoval-Ibáñez, Wolfram Thiele, Mark A Schöttler, Ines Gerlach, Reimo Zoschke, Joram Schwartzmann, Etienne H Meyer, Ralph Bock
Photosystem I (PSI) forms a large macromolecular complex of ∼580 kDa that resides in the thylakoid membrane and mediates photosynthetic electron transfer. PSI is composed of eighteen protein subunits and nearly two hundred co-factors. The assembly of the complex in thylakoid membranes requires high spatial and temporal coordination, and is critically dependent on a sophisticated assembly machinery
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Molecular dissection of an intronic enhancer governing cold-induced expression of the vacuolar invertase gene in potato Plant Cell (IF 11.6) Pub Date : 2024-02-20 Xiaobiao Zhu, Airu Chen, Nathaniel M Butler, Zixian Zeng, Haoyang Xin, Lixia Wang, Zhaoyan Lv, Dani Eshel, David S Douches, Jiming Jiang
Potato (Solanum tuberosum) is the third most important food crop in the world. Potato tubers must be stored at cold temperatures to minimize sprouting and losses due to disease. However, cold temperatures strongly induce the expression of the potato vacuolar invertase gene (VInv) and cause reducing sugar accumulation. This process, referred to as “cold-induced sweetening”, is a major postharvest problem
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Maternal nitric oxide homeostasis impacts female gametophyte development under optimal and stress conditions Plant Cell (IF 11.6) Pub Date : 2024-02-20 Junzhe Wang, Xiaolong Guo, Yijin Chen, Tianxiang Liu, Jianchu Zhu, Shengbao Xu, Elizabeth Vierling
In adverse environments, the number of fertilizable female gametophytes (FGs) in plants is reduced, leading to increased survival of remaining offspring. How the maternal plant perceives internal growth cues and external stress conditions to alter FG development remains largely unknown. We report that homeostasis of the stress signaling molecule nitric oxide (NO) plays a key role in controlling FG
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The chromatin remodeler ERCC6 and the histone chaperone NAP1 are involved in apurinic/apyrimidinic endonuclease-mediated DNA repair Plant Cell (IF 11.6) Pub Date : 2024-02-17 Tianyi Fan, Tianfang Shi, Ran Sui, Jingqi Wang, Huijia Kang, Yao Yu, Yan Zhu
During base excision repair (BER), the apurinic or apyrimidinic (AP) site serves as an intermediate product following base excision. In plants, APE-redox protein (ARP) represents the major AP site of cleavage activity. Despite the well-established understanding that the nucleosomal structure acts as a barrier to various DNA-templated processes, the regulatory mechanisms underlying BER at the chromatin
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MAC3A and MAC3B mediate degradation of the transcription factor ERF13 and thus promote lateral root emergence Plant Cell (IF 11.6) Pub Date : 2024-02-17 Zipeng Yu, Xingzhen Qu, Bingsheng Lv, Xiaoxuan Li, Jiaxuan Sui, Qianqian Yu, Zhaojun Ding
Lateral roots (LRs) increase root surface area and allow plants greater access to soil water and nutrients. LR formation is tightly regulated by the phytohormone auxin. Whereas the transcription factor ETHYLENE-RESPONSIVE ELEMENT BINDING FACTOR13 (ERF13) prevents LR emergence in Arabidopsis (Arabidopsis thaliana), auxin activates MITOGEN-ACTIVATED PROTEIN KINASE14 (MPK14), which leads to ERF13 degradation
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Reflections on the ABC model of flower development Plant Cell (IF 11.6) Pub Date : 2024-02-12 John L Bowman, Edwige Moyroud
The formulation of the ABC model by a handful of pioneer plant developmental geneticists was a seminal event in the quest to answer a seemingly simple question: how are flowers formed? Fast forward 30 years and this elegant model has generated a vibrant and diverse community, capturing the imagination of developmental and evolutionary biologists, structuralists, biochemists and molecular biologists
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Pan-transcriptomic analysis reveals alternative splicing control of cold tolerance in rice Plant Cell (IF 11.6) Pub Date : 2024-02-12 Yuanyuan Zhong, Yuhong Luo, Jinliang Sun, Xuemei Qin, Ping Gan, Zuwen Zhou, Yongqing Qian, Rupeng Zhao, Zhiyuan Zhao, Wenguo Cai, Jijing Luo, Ling-Ling Chen, Jia-Ming Song
Plants have evolved complex mechanisms to adapt to harsh environmental conditions. Rice (Oryza sativa) is a staple food crop that is sensitive to low temperatures. However, its cold stress responses remain poorly understood, thus limiting possibilities for crop engineering to achieve greater cold tolerance. In this study, we constructed a rice pan-transcriptome and characterized its transcriptional
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The Myb73-GDPD2-GA2ox1 transcriptional regulatory module confers phosphate deficiency tolerance in soybean Plant Cell (IF 11.6) Pub Date : 2024-02-12 Dandan Hu, Ruifan Cui, Ke Wang, Yuming Yang, Ruiyang Wang, Hongqing Zhu, Mengshi He, Yukun Fan, Le Wang, Li Wang, Shanshan Chu, Jinyu Zhang, Shanshan Zhang, Yifei Yang, Xuhao Zhai, Haiyan Lv, Dandan Zhang, Jinshe Wang, Fanjiang Kong, Deyue Yu, Hengyou Zhang, Dan Zhang
Phosphorus is indispensable in agricultural production. An increasing food supply requires more efficient use of phosphate due to limited phosphate resources. However, how crops regulate phosphate efficiency remains largely unknown. Here, we identified a major quantitative trait locus, qPE19, that controls seven low-phosphate (LP)-related traits in soybean (Glycine max) through linkage mapping and
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Transcription factor PagMYB31 positively regulates cambium activity and negatively regulates xylem development in poplar Plant Cell (IF 11.6) Pub Date : 2024-02-10 Yanhui Zhang, Song Chen, Linghua Xu, Shimin Chu, Xiaojing Yan, Lanying Lin, Jialong Wen, Bo Zheng, Su Chen, Quanzi Li
Wood formation involves consecutive developmental steps, including cell division of vascular cambium, xylem cell expansion, secondary cell wall (SCW) deposition, and programmed cell death. In this study, we identified PagMYB31 as a coordinator regulating these processes in Populus alba × Populus glandulosa and built a PagMYB31-mediated transcriptional regulatory network. PagMYB31 mutation caused fewer
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GRAS transcription factor PINNATE-LIKE PENTAFOLIATA2 controls compound leaf morphogenesis in Medicago truncatula Plant Cell (IF 11.6) Pub Date : 2024-02-06 Liangliang He, Ye Liu, Yawen Mao, Xinyuan Wu, Xiaoling Zheng, Weiyue Zhao, Xiaoyu Mo, Ruoruo Wang, Qinq Wu, Dongfa Wang, Youhan Li, Yuanfan Yang, Quanzi Bai, Xiaojia Zhang, Shaoli Zhou, Baolin Zhao, Changning Liu, Yu Liu, Million Tadege, Jianghua Chen
The milestone of compound leaf development is the generation of separate leaflet primordia during the early stages, which involves two linked but distinct morphogenetic events: leaflet initiation and boundary establishment for leaflet separation. Although some progress in understanding the regulatory pathways for each event have been made, it is unclear how they are intrinsically coordinated. Here
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The F-box protein RhSAF destabilizes the gibberellic acid receptor RhGID1 to mediate ethylene-induced petal senescence in rose Plant Cell (IF 11.6) Pub Date : 2024-02-05 Jingyun Lu, Guifang Zhang, Chao Ma, Yao Li, Chuyan Jiang, Yaru Wang, Bingjie Zhang, Rui Wang, Yuexuan Qiu, Yanxing Ma, Yangchao Jia, Cai-Zhong Jiang, Xiaoming Sun, Nan Ma, Yunhe Jiang, Junping Gao
Roses are among the most popular ornamental plants cultivated worldwide for their great economic, symbolic, and cultural importance. Nevertheless, rapid petal senescence markedly reduces rose (Rosa hybrida) flower quality and value. Petal senescence is a developmental process tightly regulated by various phytohormones. Ethylene accelerates petal senescence, while gibberellic acid (GA) delays this process
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Rice false smut virulence protein subverts host chitin perception and signaling at lemma and palea for floral infection Plant Cell (IF 11.6) Pub Date : 2024-02-01 Guo-Bang Li, Jie Liu, Jia-Xue He, Gao-Meng Li, Ya-Dan Zhao, Xiao-Ling Liu, Xiao-Hong Hu, Xin Zhang, Jin-Long Wu, Shuai Shen, Xin-Xian Liu, Yong Zhu, Feng He, Han Gao, He Wang, Jing-Hao Zhao, Yan Li, Fu Huang, Yan-Yan Huang, Zhi-Xue Zhao, Ji-Wei Zhang, Shi-Xin Zhou, Yun-Peng Ji, Mei Pu, Min He, Xuewei Chen, Jing Wang, Weitao Li, Xian-Jun Wu, Yuese Ning, Wenxian Sun, Zheng-Jun Xu, Wen-Ming Wang, Jing
The flower-infecting fungus Ustilaginoidea virens causes rice false smut, which is a severe emerging disease threatening rice (Oryza sativa) production worldwide. False smut not only reduces yield, but more importantly produces toxins on grains, posing a great threat to food safety. U. virens invades spikelets via the gap between the two bracts (lemma and palea) enclosing the floret and specifically
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Nudix hydrolase 23 post-translationally regulates carotenoid biosynthesis in plants Plant Cell (IF 11.6) Pub Date : 2024-02-01 Sombir Rao, Hongbo Cao, Franz Joseph O’Hanna, Xuesong Zhou, Andy Lui, Emalee Wrightstone, Tara Fish, Yong Yang, Theodore Thannhauser, Lailiang Cheng, Natalia Dudareva, Li Li
Carotenoids are essential for photosynthesis and photoprotection. Plants have evolved multifaceted regulatory mechanisms to control carotenoid biosynthesis. However, the regulatory mechanisms and the regulators conserved among plant species remain elusive. Phytoene synthase (PSY) catalyzes the highly regulated step of carotenogenesis and geranylgeranyl diphosphate synthase (GGPPS) acts as a hub to
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Cryo-EM structure of HQNO-bound Alternative Complex III from the anoxygenic phototrophic bacterium Chloroflexus aurantiacus Plant Cell (IF 11.6) Pub Date : 2024-02-01 Jiyu Xin, Zhenzhen Min, Lu Yu, Xinyi Yuan, Aokun Liu, Wenping Wu, Xin Zhang, Huimin He, Jingyi Wu, Yueyong Xin, Robert E Blankenship, Changlin Tian, Xiaoling Xu
Alternative complex III (ACIII) couples quinol oxidation and electron acceptor reduction with potential transmembrane proton translocation. It is compositionally and structurally different from the cytochrome bc1/b6f complexes, but functionally replaces these enzymes in the photosynthetic and/or respiratory electron transport chains (ETCs) of many bacteria. However, the true compositions and architectures
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Mitogen-activated protein kinases MPK3 and MPK6 phosphorylate receptor-like cytoplasmic kinase CDL1 to regulate soybean basal immunity Plant Cell (IF 11.6) Pub Date : 2024-02-01 Lei Zhang, Qun Zhu, Yuanhua Tan, Miaomiao Deng, Lei Zhang, Yangrong Cao, Xiaoli Guo
Soybean cyst nematode (SCN; Heterodera glycines Ichinohe), one of the most devastating soybean (Glycine max) pathogens, causes significant yield loss in soybean production. Nematode infection triggers plant defense responses; however, the components involved in the upstream signaling cascade remain largely unknown. In this study, we established that a mitogen-activated protein kinase (MAPK) signaling
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Rice transcriptional repressor OsTIE1 controls anther dehiscence and male sterility by regulating JA biosynthesis Plant Cell (IF 11.6) Pub Date : 2024-02-01 Yuxing Fang, Dongshu Guo, Yi Wang, Ning Wang, Xianwen Fang, Yunhui Zhang, Xiao Li, Letian Chen, Diqiu Yu, Baolong Zhang, Genji Qin
Proper anther dehiscence is essential for successful pollination and reproduction in angiosperms, and jasmonic acid (JA) is crucial for the process. However, the mechanisms underlying tight regulation of JA biosynthesis during anther development remain largely unknown. Here, we demonstrate that the rice (Oryza sativa L.) ERF-associated amphiphilic repression (EAR) motif-containing protein TCP INTERACTOR
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Polyploid plants take cytonuclear perturbations in stride Plant Cell (IF 11.6) Pub Date : 2024-01-25 Daniel B Sloan, Justin L Conover, Corrine E Grover, Jonathan F Wendel, Joel Sharbrough
Hybridization in plants is often accompanied by nuclear genome doubling (allopolyploidy), which has been hypothesized to perturb interactions between nuclear and organellar (mitochondrial and plastid) genomes by creating imbalances in the relative copy number of these genomes and producing genetic incompatibilities between maternally derived organellar genomes and the half of the allopolyploid nuclear
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ELONGATED HYPOCOTYL 5a modulates FLOWERING LOCUS T2 and gibberellin levels to control dormancy and bud break in poplar Plant Cell (IF 11.6) Pub Date : 2024-01-25 Yongfeng Gao, Zihao Chen, Qian Feng, Tao Long, Jihua Ding, Peng Shu, Heng Deng, Peizhi Yu, Wenrong Tan, Siqin Liu, Lucas Gutierrez Rodriguez, Lijun Wang, Víctor Resco de Dios, Yinan Yao
Photoperiod is a crucial environmental cue for phenological responses, including growth cessation and winter dormancy in perennial woody plants. Two regulatory modules within the photoperiod pathway explain bud dormancy induction in poplar (Populus spp.): the circadian oscillator LATE ELONGATED HYPOCOTYL 2 (LHY2) and GIGANTEA-like genes (GIs) both regulate the key target for winter dormancy induction
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Ectopic assembly of an auxin efflux control machinery shifts developmental trajectories Plant Cell (IF 11.6) Pub Date : 2024-01-25 Ana Cecilia Aliaga Fandino, Adriana Jelinkova, Petra Marhava, Jan Petrasek, Christian S Hardtke
Polar auxin transport in the Arabidopsis (Arabidopsis thaliana) root tip maintains high auxin levels around the stem cell niche that gradually decrease in dividing cells but increase again once they transition towards differentiation. Protophloem differentiates earlier than other proximal tissues and employs a unique auxin ‘canalization’ machinery that is thought to balance auxin efflux with retention
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Rice LIKE EARLY STARVATION1 cooperates with FLOURY ENDOSPERM 6 to modulate starch biosynthesis and endosperm development Plant Cell (IF 11.6) Pub Date : 2024-01-24 Haigang Yan, Wenwei Zhang, Yihua Wang, Jie Jin, Hancong Xu, Yushuang Fu, Zhuangzhuang Shan, Xin Wang, Xuan Teng, Xin Li, Yongxiang Wang, Xiaoqing Hu, Wenxiang Zhang, Changyuan Zhu, Xiao Zhang, Yu Zhang, Rongqi Wang, Jie Zhang, Yue Cai, Xiaoman You, Jie Chen, Xinyuan Ge, Liang Wang, Jiahuan Xu, Ling Jiang, Shijia Liu, Cailin Lei, Xin Zhang, Haiyang Wang, Yulong Ren, Jianmin Wan
In cereal grains, starch is synthesized by the concerted actions of multiple enzymes on the surface of starch granules within the amyloplast. However, little is known about how starch-synthesizing enzymes access starch granules, especially for amylopectin biosynthesis. Here, we show that the rice (Oryza sativa) floury endosperm9 (flo9) mutant is defective in amylopectin biosynthesis, leading to grains
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Pathogen Perception and Signalling in Plant Immunity Plant Cell (IF 11.6) Pub Date : 2024-01-23 Peter N Dodds, Jian Chen, Megan A Outram
Plant diseases are a constant and serious threat to agriculture and ecological biodiversity. Plants possess a sophisticated innate immunity system capable of detecting and responding to pathogen infection to prevent disease. Our understanding of this system has grown enormously over the past century. Early genetic descriptions of plant disease resistance and pathogen virulence were embodied in the
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Genetic regulation of self-organizing azimuthal canopy orientations and their impacts on light interception in maize Plant Cell (IF 11.6) Pub Date : 2024-01-22 Yan Zhou, Aaron Kusmec, Patrick S Schnable
The efficiency of solar radiation interception contributes to the photosynthetic efficiency of crop plants. Light interception is a function of canopy architecture, including plant density; leaf number, length, width, and angle; and azimuthal canopy orientation. We report on the ability of some maize (Zea mays) genotypes to alter the orientations of their leaves during development in coordination with
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Cell-cell communication and initial population composition shape the structure of potato spindle tuber viroid quasispecies Plant Cell (IF 11.6) Pub Date : 2024-01-22 Jian Wu, David M Bisaro
RNA viruses and viroids replicate with high mutation rates, forming quasispecies, population of variants centered around dominant sequences. The mechanisms governing quasispecies remain unclear. Plasmodesmata regulate viroid movement and were hypothesized to impact viroid quasispecies. Here, we sequenced the progeny of potato spindle tuber viroid intermediate strain (PSTVd-I) from mature guard cells
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Degradation of FATTY ACID EXPORT PROTEIN1 by RHOMBOID-LIKE PROTEASE11 contributes to cold tolerance in Arabidopsis Plant Cell (IF 11.6) Pub Date : 2024-01-20 Annalisa John, Moritz Krämer, Martin Lehmann, Hans-Henning Kunz, Fayezeh Aarabi, Saleh Alseekh, Alisdair Fernie, Frederik Sommer, Michael Schroda, David Zimmer, Timo Mühlhaus, Helga Peisker, Katharina Gutbrod, Peter Dörmann, Jens Neunzig, Katrin Philippar, H Ekkehard Neuhaus
Plants need to acclimate to different stresses to optimize growth under unfavorable conditions. In Arabidopsis (Arabidopsis thaliana), the abundance of the chloroplast envelope protein FATTY ACID EXPORT PROTEIN1 (FAX1) decreases after the onset of low temperatures. However, how FAX1 degradation occurs and whether altered FAX1 abundance contributes to cold tolerance in plants remains unclear. The rapid
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SUPPRESSOR OF MAX2 1-LIKE (SMXL) homologs are MAX2-dependent repressors of Physcomitrium patens growth Plant Cell (IF 11.6) Pub Date : 2024-01-20 Ambre Guillory, Mauricio Lopez-Obando, Khalissa Bouchenine, Philippe Le Bris, Alain Lécureuil, Jean-Paul Pillot, Vincent Steinmetz, François-Didier Boyer, Catherine Rameau, Alexandre de Saint Germain, Sandrine Bonhomme
SUPPRESSOR OF MAX2 (SMAX)1-LIKE (SMXL) proteins are a plant-specific clade of type I HSP100/Clp-ATPases. SMXL genes are present in virtually all land plant genomes. However, they have mainly been studied in angiosperms. In Arabidopsis (Arabidopsis thaliana), three functional SMXL subclades have been identified: SMAX1/SMXL2, SMXL345 and SMXL678. Of these, two subclades ensure endogenous phytohormone
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Histone deacetylase OsHDA716 represses rice chilling tolerance by deacetylating OsbZIP46 to reduce its transactivation function and protein stability Plant Cell (IF 11.6) Pub Date : 2024-01-20 Ying Sun, Zizhao Xie, Liang Jin, Tian Qin, Chenghang Zhan, Junli Huang
Low temperature is a major environmental factor limiting plant growth and crop production. Epigenetic regulation of gene expression is important for plant adaptation to environmental changes, whereas the epigenetic mechanism of cold signaling in rice (Oryza sativa) remains largely elusive. Here, we report that the histone deacetylase OsHDA716 represses rice cold tolerance by interacting with and deacetylating
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Domestication and the evolution of crops: variable syndromes, complex genetic architectures, and ecological entanglements Plant Cell (IF 11.6) Pub Date : 2024-01-20 Ornob Alam, Michael D Purugganan
Domestication can be considered a specialized mutualism in which a domesticator exerts control over the reproduction or propagation (fitness) of a domesticated species to gain resources or services. The evolution of crops by human-associated selection provides a powerful set of models to study recent and rapid evolutionary adaptations and their genetic bases. Moreover, the domestication and dispersal
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Best practices for the execution, analysis, and data storage of plant single-cell/nucleus transcriptomics Plant Cell (IF 11.6) Pub Date : 2024-01-17 Carolin Grones, Thomas Eekhout, Dongbo Shi, Manuel Neumann, Lea S Berg, Yuji Ke, Rachel Shahan, Kevin L Cox, Fabio Gomez-Cano, Hilde Nelissen, Jan U Lohmann, Stefania Giacomello, Olivier C Martin, Benjamin Cole, Jia-Wei Wang, Kerstin Kaufmann, Michael T Raissig, Gergo Palfalvi, Thomas Greb, Marc Libault, Bert De Rybel
Single-cell and single-nucleus RNA-sequencing (scRNA-seq and snRNA-seq) technologies capture the expression of plant genes at an unprecedented resolution. Therefore, these technologies are gaining traction in plant molecular and developmental biology for elucidating the transcriptional changes across cell types in a specific tissue or organ, upon treatments, in response to biotic and abiotic stresses
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A Century Journey of Organelles Research in the Plant Endomembrane System Plant Cell (IF 11.6) Pub Date : 2024-01-16 Xiaohong Zhuang, Ruixi Li, Liwen Jiang
We are entering an exciting century in the study of the plant organelles in the endomembrane system. Over the past century, especially within the past 50 years, tremendous advancements have been made in the complex plant cell to generate a much clearer and informative picture of plant organelles, including the molecular/morphological features, dynamic/spatial behavior, and physiological functions.
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A commitment for life: Decades of unraveling the molecular mechanisms behind seed dormancy and germination Plant Cell (IF 11.6) Pub Date : 2024-01-12 Nikita Sajeev, Maarten Koornneef, Leónie Bentsink
Seeds are unique time capsules that can switch between 2 complex and highly interlinked stages: seed dormancy and germination. Dormancy contributes to the survival of plants because it allows to delay germination to optimal conditions. The switch between dormancy and germination occurs in response to developmental and environmental cues. In this review we provide a comprehensive overview of studies
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Transcription factors WOX11 and LBD16 function with histone demethylase JMJ706 to control crown root development in rice Plant Cell (IF 11.6) Pub Date : 2024-01-08 Leping Geng, Mingfang Tan, Qiyu Deng, Yijie Wang, Ting Zhang, Xiaosong Hu, Miaomiao Ye, Xingming Lian, Dao-Xiu Zhou, Yu Zhao
Crown roots are the main components of root systems in cereals. Elucidating the mechanisms of crown root formation is instrumental for improving nutrient absorption, stress tolerance, and yield in cereal crops. Several members of the WUSCHEL-related homeobox (WOX) and lateral organ boundaries domain (LBD) transcription factor families play essential roles in controlling crown root development in rice
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The zinc finger protein DHHC09 S-acylates the kinase STRK1 to regulate H2O2 homeostasis and promote salt tolerance in rice Plant Cell (IF 11.6) Pub Date : 2024-01-05 Ye Tian, Hui Zeng, Ji-Cai Wu, Gao-Xing Dai, He-Ping Zheng, Cong Liu, Yan Wang, Zheng-Kun Zhou, Dong-Ying Tang, Guo-Fu Deng, Wen-Bang Tang, Xuan-Ming Liu, Jian-Zhong Lin
Soil salinity results in oxidative stress and heavy losses to crop production. The S-acylated protein SALT TOLERANCE RECEPTOR-LIKE CYTOPLASMIC KINASE 1 (STRK1) phosphorylates and activates CATALASE C (CatC) to improve rice (Oryza sativa L.) salt tolerance, but the molecular mechanism underlying its S-acylation involved in salt signal transduction awaits elucidation. Here, we show that the DHHC-type
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Salicylic Acid in Plant Immunity and Beyond Plant Cell (IF 11.6) Pub Date : 2024-01-02 Steven H Spoel, Xinnian Dong
As the most widely used herbal medicine in human history and a major defense hormone in plants against a broad spectrum of pathogens and abiotic stresses, salicylic acid (SA) has attracted major research interest. With applications of modern technologies over the past 30 years, studies of the effects of SA on plant growth, development, and defense have revealed many new research frontiers, and continue
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Why should we study plant sex chromosomes? Plant Cell (IF 11.6) Pub Date : 2024-01-02 Deborah Charlesworth, Alex Harkess
Understanding plant sex chromosomes involves studying interactions between developmental and physiological genetics, genome evolution, and evolutionary ecology. We focus on areas of overlap between these. Ideas about how species with separate sexes (dioecious species, in plant terminology) can evolve are even more relevant to plants than to most animal taxa because dioecy has evolved many times from
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Cytokinin: from autoclaved DNA to two-component signaling Plant Cell (IF 11.6) Pub Date : 2024-01-02 Cristiana T Argueso, Joseph J Kieber
Since its first identification in the 1950s as a regulator of cell division, cytokinin has been linked to many physiological processes in plants, spanning growth and development and various responses to the environment. Studies from the last two and a half decades have revealed the pathways underlying the biosynthesis and metabolism of cytokinin, and have elucidated the mechanisms of its perception
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Should I stay or should I go? Trafficking of plant extra-nuclear transcription factors Plant Cell (IF 11.6) Pub Date : 2024-01-02 Sarika Marathe, Erich Grotewold, Marisa S Otegui
At the heart of all biological processes lies the control of nuclear gene expression, which is primarily achieved through the action of transcription factors (TFs) that generally contain a nuclear localization signal (NLS) to facilitate their transport into the nucleus. However, some TFs reside in the cytoplasm in a transcriptionally inactive state and only enter the nucleus in response to specific
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Milestones in Understanding Transport, Sensing, and Signaling of the Plant Nutrient Phosphorus Plant Cell (IF 11.6) Pub Date : 2024-01-02 Shu-Yi Yang, Wei-Yi Lin, Yi-Min Hsiao, Tzyy-Jen Chiou
As an essential nutrient element, phosphorus (P) is primarily acquired and translocated as inorganic phosphate (Pi) by plant roots. Pi is often sequestered in the soil and becomes limited for plant growth. Plants have developed a sophisticated array of adaptive responses, termed P starvation responses (PSRs), to cope with P deficiency by improving its external acquisition and internal utilization.
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Hypothetical chloroplast reading frame 51 encodes a photosystem I assembly factor in cyanobacteria Plant Cell (IF 11.6) Pub Date : 2023-12-26 Guo-Zheng Dai, Wei-Yu Song, Hai-Feng Xu, Miao Tu, Chen Yu, Zheng-Ke Li, Jin-Long Shang, Chun-Lei Jin, Chao-Shun Ding, Ling-Zi Zuo, Yan-Ru Liu, Wei-Wei Yan, Sha-Sha Zang, Ke Liu, Zheng Zhang, Ralph Bock, Bao-Sheng Qiu
Hypothetical chloroplast open reading frames (ycfs) are putative genes in the plastid genomes of photosynthetic eukaryotes. Many ycfs are also conserved in the genomes of cyanobacteria, the presumptive ancestors of present-day chloroplasts. The functions of many ycfs are still unknown. Here, we generated knock-out mutants for ycf51 (sll1702) in the cyanobacterium Synechocystis sp. PCC 6803. The mutants
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Root branching under high salinity requires auxin-independent modulation of LATERAL ORGAN BOUNDARY DOMAIN 16 function Plant Cell (IF 11.6) Pub Date : 2023-12-24 Yanxia Zhang, Yiyun Li, Thijs de Zeeuw, Kilian Duijts, Dorota Kawa, Jasper Lamers, Kristina S Munzert, Hongfei Li, Yutao Zou, A Jessica Meyer, Jinxuan Yan, Francel Verstappen, Yixuan Wang, Tom Gijsberts, Jielin Wang, Nora Gigli-Bisceglia, Timo Engelsdorf, Aalt D J van Dijk, Christa Testerink
Salinity stress constrains lateral root (LR) growth and severely affects plant growth. Auxin signaling regulates LR formation, but the molecular mechanism by which salinity affects root auxin signaling and whether salt induces other pathways that regulate LR development remains unknown. In Arabidopsis thaliana, the auxin-regulated transcription factor LATERAL ORGAN BOUNDARY DOMAIN 16 (LBD16) is an
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The RALF signaling pathway regulates cell wall integrity during pollen tube growth in maize Plant Cell (IF 11.6) Pub Date : 2023-12-24 Liang-Zi Zhou, Lele Wang, Xia Chen, Zengxiang Ge, Julia Mergner, Xingli Li, Bernhard Küster, Gernot Längst, Li-Jia Qu, Thomas Dresselhaus
Autocrine signaling pathways regulated by RAPID ALKALINIZATION FACTORs (RALFs) control cell wall integrity during pollen tube germination and growth in Arabidopsis (Arabidopsis thaliana). To investigate the role of pollen-specific RALFs in another plant species, we combined gene expression data with phylogenetic and biochemical studies to identify candidate orthologs in maize (Zea mays). We show that
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CHLOROPLAST UNUSUAL POSITIONING 1 is a plant-specific actin polymerization factor regulating chloroplast movement Plant Cell (IF 11.6) Pub Date : 2023-12-22 Sam-Geun Kong, Yosuke Yamazaki, Atsushi Shimada, Saku T Kijima, Keiko Hirose, Kaoru Katoh, Jeongsu Ahn, Hyun-Geun Song, Jae-Woo Han, Takeshi Higa, Akira Takano, Yuki Nakamura, Noriyuki Suetsugu, Daisuke Kohda, Taro Q P Uyeda, Masamitsu Wada
Plants have unique responses to fluctuating light conditions. One such response involves chloroplast photorelocation movement, which optimizes photosynthesis under weak light by the accumulation of chloroplasts along the periclinal side of the cell, which prevents photodamage under strong light by avoiding chloroplast positioning toward the anticlinal side of the cell. This light-responsive chloroplast