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The dramatic effects of well-intentioned but ill-designed management strategies in plant biological invasions Nat. Plants (IF 15.8) Pub Date : 2024-07-26 Sergi Munné-Bosch, Jessyca Adelle Silva Santos
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Arabidopsis floral buds are locked through stress-induced sepal tip curving Nat. Plants (IF 15.8) Pub Date : 2024-07-26 Duy-Chi Trinh, Isaty Melogno, Marjolaine Martin, Christophe Trehin, Richard S. Smith, Olivier Hamant
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Pollen banking is a critical need for conserving plant diversity Nat. Plants (IF 15.8) Pub Date : 2024-07-25 Dustin Wolkis, Cecily Eltringham, Jeremie Fant, Jeremy Foster, Tiffany Knight, Abby Meyer, Hugo Romero-Saltos, Seana K. Walsh, Alina Wood, Kayri Havens
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Strigolactone-induced degradation of SUPPRESSOR OF MORE AXILLARY GROWTH2-LIKE7 (SMXL7) and SMXL8 contributes to gibberellin- and auxin-mediated fiber cell elongation in cotton Plant Cell (IF 10.0) Pub Date : 2024-07-25 Yaru Sun, Zailong Tian, Dongyun Zuo, Hailiang Cheng, Qiaolian Wang, Youping Zhang, Limin Lv, Guoli Song
Cotton (Gossypium) fiber length, a key trait determining fiber yield and quality, is highly regulated by a class of recently identified phytohormones, strigolactones (SLs). However, the underlying molecular mechanisms of SL signaling involved in fiber cell development are largely unknown. Here, we show that the SL signaling repressors MORE AXILLARY GROWTH2-LIKE7 (GhSMXL7) and GhSMXL8 negatively regulate
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ASYNAPSIS3 has diverse dosage-dependent effects on meiotic crossover formation in Brassica napus Plant Cell (IF 10.0) Pub Date : 2024-07-25 Lei Chu, Jixin Zhuang, Miaowei Geng, Yashi Zhang, Jing Zhu, Chunyu Zhang, Arp Schnittger, Bin Yi, Chao Yang
Crossovers create genetic diversity and are required for equal chromosome segregation during meiosis. Crossover number and distribution are highly regulated by different mechanisms that are not yet fully understood, including crossover interference. The chromosome axis is crucial for crossover formation. Here, we explore the function of the axis protein ASYNAPSIS3. To this end, we use the allotetraploid
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Impact of protein domains on the MEL2 granule, a cytoplasmic ribonucleoprotein complex maintaining faithful meiosis progression in rice New Phytol. (IF 8.3) Pub Date : 2024-07-25 Manaki Mimura, Seijiro Ono, Harsha Somashekar, Ken‐Ichi Nonomura
Summary Cytoplasmic ribonucleoprotein (RNP) granules are membraneless structures composed of various RNAs and proteins that play important roles in post‐transcriptional regulation. While RNP granules are known to regulate the meiotic entry in some organisms, little is known about their roles in plants. In this study, we observed the cytoplasmic granular structures of rice RNA‐binding protein MEIOSIS
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Climate change increases flowering duration, driving phenological reassembly and elevated co‐flowering richness New Phytol. (IF 8.3) Pub Date : 2024-07-25 Matthew W. Austin, Adam B. Smith, Kenneth M. Olsen, Peter C. Hoch, Kyra N. Krakos, Stefani P. Schmocker, Nicole E. Miller‐Struttmann
Summary Changes to flowering phenology are a key response of plants to climate change. However, we know little about how these changes alter temporal patterns of reproductive overlap (i.e. phenological reassembly). We combined long‐term field (1937–2012) and herbarium records (1850–2017) of 68 species in a flowering plant community in central North America and used a novel application of Bayesian quantile
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Understanding the chemical language mediating maize immunity and environmental adaptation New Phytol. (IF 8.3) Pub Date : 2024-07-25 Farida Yasmin, Anna E. Cowie, Philipp Zerbe
SummaryDiverse networks of specialized metabolites promote plant fitness by mediating beneficial and antagonistic environmental interactions. In maize (Zea mays), constitutive and dynamically formed cocktails of terpenoids, benzoxazinoids, oxylipins, and phenylpropanoids contribute to plant defense and ecological adaptation. Recent research has highlighted the multifunctional nature of many specialized
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Pushing the limits: expanding the temperature tolerance of a coral photosymbiont through differing selection regimes New Phytol. (IF 8.3) Pub Date : 2024-07-25 Hugo J. Scharfenstein, Lesa M. Peplow, Carlos Alvarez‐Roa, Matthew R. Nitschke, Wing Yan Chan, Patrick Buerger, Madeleine J. H. van Oppen
Summary Coral thermal bleaching resilience can be improved by enhancing photosymbiont thermal tolerance via experimental evolution. While successful for some strains, selection under stable temperatures was ineffective at increasing the thermal threshold of an already thermo‐tolerant photosymbiont (Durusdinium trenchii). Corals from environments with fluctuating temperatures tend to have comparatively
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Abscisic acid-mediated autoregulation of the MYB41-BRAHMA module enhances drought tolerance in Arabidopsis Plant Physiol. (IF 6.5) Pub Date : 2024-07-25 Lei Gao, Qiang Lv, Lei Wang, Shuang Han, Jing Wang, Yuli Chen, Wenwen Zhu, Xia Zhang, Fang Bao, Yong Hu, Ling Li, Yikun He
Drought stress poses a substantial challenge to plant growth and agricultural productivity worldwide. Upon water depletion, plants activate an abscisic acid (ABA) signaling pathway, leading to stomatal closure to reduce water loss. The MYB family of transcription factors plays diverse roles in growth, development, stress responses and biosynthesis, yet their involvement in stomatal regulation remains
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Jasmonate signaling modulates root growth by suppressing iron accumulation during ammonium stress Plant Physiol. (IF 6.5) Pub Date : 2024-07-25 Anshika Pandey, Loitongbam Lorinda Devi, Shreya Gupta, Priti Prasad, Kanupriya Agrwal, Mehar Hasan Asif, Ajay Kumar Pandey, Kaustav Bandyopadhyay, Amar Pal Singh
Plants adapt to changing environmental conditions by adjusting their growth physiology. Nitrate (NO3-) and ammonium (NH4+) are the major inorganic nitrogen forms for plant uptake. However, high NH4+ inhibits plant growth, and roots undergo striking changes, such as inhibition of cell expansion and division, leading to reduced root elongation. In this work, we show that high NH4+ modulates nitrogen
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An anthocyanin activation gene underlies the purple central flower pigmentation in wild carrot Plant Physiol. (IF 6.5) Pub Date : 2024-07-25 Ao-Qi Duan, Yuan-Jie Deng, Hui Liu, Zhi-Sheng Xu, Ai-Sheng Xiong
Many organisms have complex pigmentation patterns. However, how these patterns are formed remains largely unknown. In wild carrot (Daucus carota subsp. carota), which is also known as Queen Anne’s lace, one or several purple central flowers occur in white umbels. Here, we investigated the unique central flower pigmentation pattern in wild carrot umbels. Using wild and cultivated carrot (Daucus carota
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Roles of cytochrome P450 monooxygenases in triterpene biosynthesis and their potential impact on growth and development Plant Physiol. (IF 6.5) Pub Date : 2024-07-25 Caiqiong Yang, Rayko Halitschke, Sarah E O'Connor, Ian T Baldwin
Pentacyclic triterpenoids, recognized for their natural bioactivity, display complex spatiotemporal accumulation patterns within the ecological model plant Nicotiana attenuata. Despite their ecological importance, the underlying biosynthetic enzymes and functional attributes of triterpenoid synthesis in N. attenuata remain unexplored. Here, we show that three cytochrome P450 monooxygenases (NaCYP716A419
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Harnessing co-evolutionary interactions between plants and Streptomyces to combat drought stress Nat. Plants (IF 15.8) Pub Date : 2024-07-24 Hongwei Liu, Jiayu Li, Brajesh K. Singh
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Spice of life Nat. Plants (IF 15.8) Pub Date : 2024-07-23
The variety of species and systems available to scientists fascinated by plants is remarkably rich and deserves to be celebrated.
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Unravelling the genetic basis and regulation networks related to fibre quality improvement using chromosome segment substitution lines in cotton Plant Biotech. J. (IF 10.1) Pub Date : 2024-07-24 Guoan Qi, Zhanfeng Si, Lisha Xuan, Zegang Han, Yan Hu, Lei Fang, Fan Dai, Tianzhen Zhang
SummaryThe elucidation of genetic architecture and molecular regulatory networks underlying complex traits remains a significant challenge in life science, largely due to the substantial background effects that arise from epistasis and gene–environment interactions. The chromosome segment substitution line (CSSL) is an ideal material for genetic and molecular dissection of complex traits due to its
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Actin‐bundling protein fimbrin serves as a new auxin biosynthesis orchestrator in Arabidopsis root tips New Phytol. (IF 8.3) Pub Date : 2024-07-24 Yan‐kun Liu, Jing‐jing Li, Qiao‐qiao Xue, Shu‐juan Zhang, Min Xie, Ting Cheng, Hong‐li Wang, Cui‐mei Liu, Jin‐fang Chu, Yu‐sha Pei, Bing‐qian Jia, Jia Li, Li‐jun Tian, Ai‐gen Fu, Ya‐qi Hao, Hui Su
Summary Plants delicately regulate endogenous auxin levels through the coordination of transport, biosynthesis, and inactivation, which is crucial for growth and development. While it is well‐established that the actin cytoskeleton can regulate auxin levels by affecting polar transport, its potential role in auxin biosynthesis has remained largely unexplored. Using LC–MS/MS‐based methods combined with
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Polyploidy and environmental stress response: a comparative study of fern gametophytes New Phytol. (IF 8.3) Pub Date : 2024-07-24 Jennifer Blake‐Mahmud, Emily B. Sessa, Clayton J. Visger, James E. Watkins
Summary Climate change is rapidly altering natural habitats and generating complex patterns of environmental stress. Ferns are major components of many forest understories and, given their independent gametophyte generation, may experience unique pressures in emerging temperature and drought regimes. Polyploidy is widespread in ferns and may provide a selective advantage in these rapidly changing environments
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m6A demethylase OsALKBH5 is required for double‐strand break formation and repair by affecting mRNA stability in rice meiosis New Phytol. (IF 8.3) Pub Date : 2024-07-24 Feiyang Xue, Jie Zhang, Di Wu, Shiyu Sun, Ming Fu, Jie Wang, Iain Searle, Hongbo Gao, Wanqi Liang
Summary N6‐methyladenosine (m6A) RNA modification is the most prevalent messenger RNA (mRNA) modification in eukaryotes and plays critical roles in the regulation of gene expression. m6A is a reversible RNA modification that is deposited by methyltransferases (writers) and removed by demethylases (erasers). The function of m6A erasers in plants is highly diversified and their roles in cereal crops
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Horizontally transferred mitochondrial DNA tracts become circular by microhomology‐mediated repair pathways New Phytol. (IF 8.3) Pub Date : 2024-07-24 M. Emilia Roulet, Luis Federico Ceriotti, Leonardo Gatica‐Soria, M. Virginia Sanchez‐Puerta
Summary The holoparasitic plant Lophophytum mirabile exhibits remarkable levels of mitochondrial horizontal gene transfer (HGT). Gathering comparative data from other individuals and host plants can provide insights into the HGT process. We sequenced the mitochondrial genome (mtDNA) from individuals of two species of Lophophytum and from mimosoid hosts. We applied a stringent phylogenomic approach
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Theory and tests for coordination among hydraulic and photosynthetic traits in co‐occurring woody species New Phytol. (IF 8.3) Pub Date : 2024-07-24 Shubham S. Chhajed, Ian J. Wright, Oscar Perez‐Priego
Summary Co‐occurring plants show wide variation in their hydraulic and photosynthetic traits. Here, we extended ‘least‐cost’ optimality theory to derive predictions for how variation in key hydraulic traits potentially affects the cost of acquiring and using water in photosynthesis and how this, in turn, should drive variation in photosynthetic traits. We tested these ideas across 18 woody species
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David L. Des Marais New Phytol. (IF 8.3) Pub Date : 2024-07-24
What inspired your interest in plant science? I have a vivid memory, from spring break of my second year in college, of travelling with two friends to Death Valley National Park in California. Our visit coincided with a fairly wet year for the California deserts, so there were many plants growing and flowering that would ordinarily be waiting out Death Valley's notoriously hot and dry climate. My friends
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Mechanical forces orchestrate the metabolism of the developing oilseed rape embryo New Phytol. (IF 8.3) Pub Date : 2024-07-24 Hardy Rolletschek, Aleksandra Muszynska, Jörg Schwender, Volodymyr Radchuk, Björn Heinemann, Alexander Hilo, Iaroslav Plutenko, Peter Keil, Stefan Ortleb, Steffen Wagner, Laura Kalms, André Gündel, Hai Shi, Jörg Fuchs, Jedrzej Jakub Szymanski, Hans‐Peter Braun, Ljudmilla Borisjuk
Summary The initial free expansion of the embryo within a seed is at some point inhibited by its contact with the testa, resulting in its formation of folds and borders. Although less obvious, mechanical forces appear to trigger and accelerate seed maturation. However, the mechanistic basis for this effect remains unclear. Manipulation of the mechanical constraints affecting either the in vivo or in
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Local adaptation, recombination, and the fate of neopolyploids New Phytol. (IF 8.3) Pub Date : 2024-07-24 Stuart F. McDaniel
SummaryPolyploidy is widely recognized as an important speciation mechanism because it isolates tetraploids from their diploid progenitors. Polyploidy also provides new genetic material that may facilitate adaptive evolution. However, new mutations are more likely to arise after a neopolyploid already has successfully invaded a population. Thus, the role of adaptive forces in establishing a polyploid
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The BNB–GLID module regulates germline fate determination in Marchantia polymorpha Plant Cell (IF 10.0) Pub Date : 2024-07-23 Xiaolong Ren, Xiaoxia Zhang, Xiaotong Qi, Tian Zhang, Huijie Wang, David Twell, Yu Gong, Yuan Fu, Baichen Wang, Hongzhi Kong, Bo Xu
Germline fate determination is a critical event in sexual reproduction. Unlike animals, plants specify the germline by reprogramming somatic cells at late stages of their development. However, the genetic basis of germline fate determination and how it has evolved during land plant evolution are still poorly understood. Here, we report that the plant homeodomain (PHD)-finger protein GERMLINE IDENTITY
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The phosphatidylethanolamine-binding proteins OsMFT1 and OsMFT2 regulate seed dormancy in rice Plant Cell (IF 10.0) Pub Date : 2024-07-23 Jun Shen, Liang Zhang, Huanyu Wang, Jiazhuo Guo, Yuchen Li, Yuanyuan Tan, Qingyao Shu, Qian Qian, Hao Yu, Ying Chen, Shiyong Song
Seed dormancy is crucial for optimal plant life-cycle timing. However, domestication has largely diminished seed dormancy in modern cereal cultivars, leading to challenges such as pre-harvest sprouting (PHS) and subsequent declines in yield and quality. Therefore, it is imperative to unravel the molecular mechanisms governing seed dormancy for the development of PHS-resistant varieties. In this study
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GIBBERELLIN PERCEPTION SENSOR 2 reveals genesis and role of cellular GA dynamics in light-regulated hypocotyl growth Plant Cell (IF 10.0) Pub Date : 2024-07-23 Jayne Griffiths, Annalisa Rizza, Bijun Tang, Wolf B Frommer, Alexander M Jones
The phytohormone gibberellic acid (GA) is critical for environmentally sensitive plant development including germination, skotomorphogenesis, and flowering. The Förster resonance energy transfer biosensor GIBBERELLIN PERCEPTION SENSOR1, which permits single-cell GA measurements in vivo, has been used to observe a GA gradient correlated with cell length in dark-grown, but not light-grown, hypocotyls
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Ultraviolet attenuates centromere‐mediated meiotic genome stability and alters gametophytic ploidy consistency in flowering plants New Phytol. (IF 8.3) Pub Date : 2024-07-23 Huiqi Fu, Jiaqi Zhong, Jiayi Zhao, Li Huo, Chong Wang, Dexuan Ma, Wenjing Pan, Limin Sun, Ziming Ren, Tianyi Fan, Ze Wang, Wenyi Wang, Xiaoning Lei, Guanghui Yu, Jing Li, Yan Zhu, Danny Geelen, Bing Liu
Summary Ultraviolet (UV) radiation influences development and genome stability in organisms; however, its impact on meiosis, a special cell division essential for the delivery of genetic information across generations in eukaryotes, has not yet been elucidated. In this study, by performing cytogenetic studies, we reported that UV radiation does not damage meiotic chromosome integrity but attenuates
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Baking bad: plants in a toasty world with necrotrophs New Phytol. (IF 8.3) Pub Date : 2024-07-23 H. M. Suraj, Jan A. L. van Kan
SummaryRising global temperatures pose a threat to plant immunity, making them more susceptible to diseases. The impact of temperature on plant immunity against biotrophic and hemi‐biotrophic pathogens is well documented, while its effect on necrotrophs remains poorly understood. We venture into the uncharted territory of necrotrophic fungal pathogens in the face of rising temperatures. We discuss
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Arabidopsis enters the single‐cell proteomics era New Phytol. (IF 8.3) Pub Date : 2024-07-23 Monique van Schie, Dolf Weijers
What makes one cell different from its neighbor, and how do these differences impact the phenotype of the organism? Answering these critical questions in biology is difficult using traditional omics approaches since spatial information gets lost when whole tissues or organisms are used for measurements, which then report on the average of all cells. In recent years, molecular biology has seen a revolution
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Transcriptional regulation of transcription factor genes WRI1 and LAFL during Brassica napus seed development Plant Physiol. (IF 6.5) Pub Date : 2024-07-23 Xu Han, Yan Peng, Sijie Yin, Hu Zhao, Zhanxiang Zong, Zengdong Tan, Yuting Zhang, Wei Ma, Liang Guo
The WRINKLED1 (WRI1) and LAFL [LEAFY COTYLEDON1 (LEC1), ABSCISIC ACID INSENSITIVE3 (ABI3), FUSCA3 (FUS3), and LEC2] transcription factors play essential roles in governing seed development and oil biosynthesis. To gain a comprehensive understanding of the transcriptional regulation of WRI1 and LAFL, we conducted genome-wide association studies for the expression profiles of WRI1 and LAFL in developing
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Epigenetic factors direct synergistic and antagonistic regulation of transposable elements in Arabidopsis Plant Physiol. (IF 6.5) Pub Date : 2024-07-23 Jo-Wei Allison Hsieh, Ming-Ren Yen, Fu-Yu Hung, Keqiang Wu, Pao-Yang Chen
Arabidopsis (Arabidopsis thaliana) HISTONE DEACETYLASE 6 (HDA6) and HISTONE DEMETHYLASES LSD-LIKE 1 (LDL1) and LDL2 synergistically regulate the expression of long non-coding RNAs associated with H3Ac and H3K4me2. The underlying mechanisms of such highly coordinated interactions among genetic and epigenetic factors contributing to this collaborative regulation remain largely unclear. We analyzed all
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A module involving HIGH LEAF TEMPERATURE1 controls instantaneous water use efficiency Plant Physiol. (IF 6.5) Pub Date : 2024-07-23 Chuanlei Xiao, Huimin Guo, Ruiying Li, Yuehua Wang, Kaili Yin, Peipei Ye, Honghong Hu
Drought stress inhibits plant growth and agricultural production. Improving plant instantaneous water use efficiency (iWUE), which is strictly regulated by stomata, is an effective way to cope with drought stress. However, the mechanisms of iWUE regulation are poorly understood. Through genetic screening for suppressors of mpk12-4, an Arabidopsis (Arabidopsis thaliana) mutant with a major iWUE quantitative
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ZmPHR1 contributes to drought resistance by modulating phosphate homeostasis in maize Plant Biotech. J. (IF 10.1) Pub Date : 2024-07-22 Meng‐Zhi Tian, Hai‐Feng Wang, Yan Tian, Jie Hao, Hui‐Ling Guo, Li‐Mei Chen, Ya‐Kang Wei, Shi‐Hao Zhan, Hong‐Tao Yu, Yi‐Fang Chen
SummaryAs an essential macronutrient, phosphorus (P) is often a limiting nutrient because of its low availability and mobility in soils. Drought is a major environmental stress that reduces crop yield. How plants balance and combine P‐starvation responses (PSRs) and drought resistance is unclear. In this study, we identified the transcription factor ZmPHR1 as a major regulator of PSRs that modulates
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Lighting the way: Compelling open questions in photosynthesis research Plant Cell (IF 10.0) Pub Date : 2024-07-22 Nancy A Eckardt, Yagut Allahverdiyeva, Clarisa E Alvarez, Claudia Büchel, Adrien Burlacot, Tanai Cardona, Emma Chaloner, Benjamin D Engel, Arthur R Grossman, Dvir Harris, Nicolas Herrmann, Michael Hodges, Jan Kern, Tom Dongmin Kim, Veronica G Maurino, Conrad W Mullineaux, Henna Mustila, Lauri Nikkanen, Gabriela Schlau-Cohen, Marcos A Tronconi, Wojciech Wietrzynski, Vittal K Yachandra, Junko Yano
Photosynthesis – the conversion of energy from sunlight into chemical energy – is essential for life on Earth. Yet there is much we do not understand about photosynthetic energy conversion on a fundamental level: how it evolved and the extent of its diversity, its dynamics, and all the components and connections involved in its regulation. In this commentary, researchers working on fundamental aspects
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The transcription factors ZAT5 and BLH2/4 regulate homogalacturonan demethylesterification in Arabidopsis seed coat mucilage Plant Cell (IF 10.0) Pub Date : 2024-07-22 Minmin Xie, Anming Ding, Yongfeng Guo, Jinhao Sun, Wanya Qiu, Mingli Chen, Zhiyuan Li, Shanshan Li, Gongke Zhou, Yan Xu, Meng Wang, Aurore Richel, Daping Gong, Yingzhen Kong
The level of methylesterification alters the functional properties of pectin, which is believed to influence plant growth and development. However, the mechanisms that regulate demethylesterification remain largely unexplored. Pectin with a high degree of methylesterification is produced in the Golgi apparatus and then transferred to the primary cell wall where it is partially demethylesterified by
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Chloroplast NADH dehydrogenase‐like complex‐mediated cyclic electron flow is the main electron transport route in C4 bundle sheath cells New Phytol. (IF 8.3) Pub Date : 2024-07-22 Maria Ermakova, Russell Woodford, Duncan Fitzpatrick, Samuel J. Nix, Soraya M. Zwahlen, Graham D. Farquhar, Susanne von Caemmerer, Robert T. Furbank
Summary The superior productivity of C4 plants is achieved via a metabolic C4 cycle which acts as a CO2 pump across mesophyll and bundle sheath (BS) cells and requires an additional input of energy in the form of ATP. The importance of chloroplast NADH dehydrogenase‐like complex (NDH) operating cyclic electron flow (CEF) around Photosystem I (PSI) for C4 photosynthesis has been shown in reverse genetics
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The chromosome‐level genome assembly of Cananga odorata provides insights into its evolution and terpenoid biosynthesis New Phytol. (IF 8.3) Pub Date : 2024-07-20 Yan Zheng, Danni Yang, Xin Yin, Xingyu Yang, Mingyue Chen, Xieshengyang Li, Tianyu Yang, Joeri Sergej Strijk, Damien Daniel Hinsinger, Yunqiang Yang, Xiangxiang Kong, Yongping Yang
Summary Cananga odorata is known as a natural perfume tree of the Annonaceae family in Magnoliales. However, its phylogenetic position and the molecular mechanisms involved in the biosynthesis of the floral volatile organic compounds (VOCs) remain unclear. Here, by combining a variety of sequencing platforms, we present a telomere‐to‐telomere (T2T) genome of C. odorata with 735.83 Mb, which represents
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Smart gene, smart canopy Nat. Plants (IF 15.8) Pub Date : 2024-07-19 Jun Lyu
The researchers found a natural mutant in the maize inbred line W22 background that showed the typical smart-canopy architecture (that is, differential leaf angles at different canopy layers). They named it leaf angle architecture of smart canopy 1 (lac1). Compared to W22, lac1 exhibits a narrower ligular band, smaller auricle size and more layers of sclerenchyma cells in the ligular region, which
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PhieDBEs: a DBD‐containing, PAM‐flexible, high‐efficiency dual base editor toolbox with wide targeting scope for use in plants Plant Biotech. J. (IF 10.1) Pub Date : 2024-07-19 Zhiye Zheng, Taoli Liu, Nan Chai, Dongchang Zeng, Ruixiang Zhang, Yang Wu, Jiaxuan Hang, Yuxin Liu, Qindi Deng, Jiantao Tan, Jialin Liu, Xianrong Xie, Yao‐Guang Liu, Qinlong Zhu
SummaryDual base editors (DBEs) enable simultaneous A‐to‐G and C‐to‐T conversions, expanding mutation types. However, low editing efficiency and narrow targeting range limit the widespread use of DBEs in plants. The single‐strand DNA binding domain of RAD51 DBD can be fused to base editors to improve their editing efficiency. However, it remains unclear how the DBD affects dual base editing performance
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Hop stunt viroid infection induces heterochromatin reorganization New Phytol. (IF 8.3) Pub Date : 2024-07-19 Joan Marquez‐Molins, Jinping Cheng, Julia Corell‐Sierra, Vasti Thamara Juarez‐Gonzalez, Pascual Villalba‐Bermell, Maria Luz Annacondia, Gustavo Gomez, German Martinez
Summary Viroids are pathogenic noncoding RNAs that completely rely on their host molecular machinery to accomplish their life cycle. Several interactions between viroids and their host molecular machinery have been identified, including interference with epigenetic mechanisms such as DNA methylation. Despite this, whether viroids influence changes in other epigenetic marks such as histone modifications
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Future climate doubles the risk of hydraulic failure in a wet tropical forest New Phytol. (IF 8.3) Pub Date : 2024-07-19 Zachary Robbins, Jeffrey Chambers, Rutuja Chitra‐Tarak, Bradley Christoffersen, L. Turin Dickman, Rosie Fisher, Alex Jonko, Ryan Knox, Charles Koven, Lara Kueppers, Nate McDowell, Chonggang Xu
Summary Future climate presents conflicting implications for forest biomass. We evaluate how plant hydraulic traits, elevated CO2 levels, warming, and changes in precipitation affect forest primary productivity, evapotranspiration, and the risk of hydraulic failure. We used a dynamic vegetation model with plant hydrodynamics (FATES‐HYDRO) to simulate the stand‐level responses to future climate changes
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Competition for nutrient niches within the apple blossom microbiota antagonizes the initiation of fire blight infection New Phytol. (IF 8.3) Pub Date : 2024-07-19 Seung Yeup Lee, Eunjung Roh, Sang Guen Kim, Hyun Gi Kong
Summary Changes in the plant microbiota composition are intimately associated with the health of the plant, but factors controlling the microbial community in flowers are poorly understood. In this study, we used apple flowers and fire blight as a model system to investigate the effects of floral microbiota and microbial competition on disease development and suppression. To compare changes in microbial
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Amphicarpic development in Cardamine chenopodiifolia New Phytol. (IF 8.3) Pub Date : 2024-07-19 Aurélia Emonet, Miguel Pérez‐Antón, Ulla Neumann, Sonja Dunemann, Bruno Huettel, Robert Koller, Angela Hay
Summary Amphicarpy is an unusual trait where two fruit types develop on the same plant: one above and the other belowground. This trait is not found in conventional model species. Therefore, its development and molecular genetics remain under‐studied. Here, we establish the allooctoploid Cardamine chenopodiifolia as an emerging experimental system to study amphicarpy. We characterized C. chenopodiifolia
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From Sensing to Acclimation: The Role of Membrane Lipid Remodeling in Plant Responses to Low Temperatures Plant Physiol. (IF 6.5) Pub Date : 2024-07-19 Zachery D Shomo, Fangyi Li, Cailin N Smith, Sydney R Edmonds, Rebecca L Roston
Low temperatures pose a dramatic challenge to plant viability. Chilling and freezing disrupt cellular processes, forcing metabolic adaptations reflected in alterations to membrane compositions. Understanding the mechanisms of plant cold tolerance is increasingly important due to anticipated increases in the frequency, severity, and duration of cold events. This review synthesizes current knowledge
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Nuclear factors NF-YC3 and NF-YBs positively regulate arbuscular mycorrhizal symbiosis in tomato Plant Physiol. (IF 6.5) Pub Date : 2024-07-19 Heng Chien, Ting-Yu Kuo, Ching-Hung Yao, Yi-Ru Su, Yu-Ting Chang, Zheng-Lin Guo, Kai-Chieh Chang, Yu-Heng Hsieh, Shu-Yi Yang
The involvement of nuclear factor Y (NF-Y) in transcriptional reprogramming during arbuscular mycorrhizal symbiosis has been demonstrated in several plant species. However, a comprehensive picture is lacking. We showed that the spatial expression of NF-YC3 was observed in cortical cells containing arbuscules via the cis-regulatory element GCC boxes. Moreover, the NF-YC3 promoter was transactivated
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Polyamines: pleiotropic molecules regulating plant development and enhancing crop yield and quality Plant Biotech. J. (IF 10.1) Pub Date : 2024-07-18 Haishan Yang, Yinyin Fang, Zhiman Liang, Tian Qin, Ji‐Hong Liu, Taibo Liu
SummaryPolyamines (PAs) are pleiotropic bioorganic molecules. Cellular PA contents are determined by a balance between PA synthesis and degradation. PAs have been extensively demonstrated to play vital roles in the modulation of plant developmental processes and adaptation to various environmental stresses. In this review, the latest advances on the diverse roles of PAs in a range of developmental
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Ectopic enhancer–enhancer interactions as causal forces driving RNA‐directed DNA methylation in gene regulatory regions Plant Biotech. J. (IF 10.1) Pub Date : 2024-07-18 Yazhou Yang, Jia Liu, Stacy D. Singer, Guohua Yan, Dennis R. Bennet, Yue Liu, Jean‐Michel Hily, Weirong Xu, Yingzhen Yang, Xiping Wang, Gan‐Yuan Zhong, Zhongchi Liu, Yong‐Chiang An, Huawei Liu, Zongrang Liu
SummaryCis‐regulatory elements (CREs) are integral to the spatiotemporal and quantitative expression dynamics of target genes, thus directly influencing phenotypic variation and evolution. However, many of these CREs become highly susceptible to transcriptional silencing when in a transgenic state, particularly when organised as tandem repeats. We investigated the mechanism of this phenomenon and found
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Genetic variation in the aquaporin TONOPLAST INTRINSIC PROTEIN 4;3 modulates maize cold tolerance Plant Biotech. J. (IF 10.1) Pub Date : 2024-07-18 Rong Zeng, Xiaoyan Zhang, Guangshu Song, Qingxue Lv, Minze Li, Diyi Fu, Zhuo Zhang, Lei Gao, Shuaisong Zhang, Xiaohong Yang, Feng Tian, Shuhua Yang, Yiting Shi
SummaryCold stress is a major abiotic stress that threatens maize (Zea mays L.) production worldwide. Understanding the molecular mechanisms underlying cold tolerance is crucial for breeding resilient maize varieties. Tonoplast intrinsic proteins (TIPs) are a subfamily of aquaporins in plants. Here, we report that TIP family proteins are involved in maize cold tolerance. The expression of most TIP
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Regional differences in leaf evolution facilitate photosynthesis following severe drought New Phytol. (IF 8.3) Pub Date : 2024-07-18 Haley A. Branch, Dylan R. Moxley, Amy L. Angert
Summary Characterizing physiological and anatomical changes that underlie rapid evolution following climatic perturbation can broaden our understanding of how climate change is affecting biodiversity. It can also provide evidence of cryptic adaptation despite stasis at higher levels of biological organization. Here, we compared evolutionary changes in populations of Mimulus cardinalis from historically
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The marriage between stable isotope ecology and plant metabolomics – new perspectives for metabolic flux analysis and the interpretation of ecological archives New Phytol. (IF 8.3) Pub Date : 2024-07-18 Arthur Gessler, Thomas Wieloch, Matthias Saurer, Marco M. Lehmann, Roland A. Werner, Bernd Kammerer
SummaryEven though they share many thematical overlaps, plant metabolomics and stable isotope ecology have been rather separate fields mainly due to different mass spectrometry demands. New high‐resolution bioanalytical mass spectrometers are now not only offering high‐throughput metabolite identification but are also suitable for compound‐ and intramolecular position‐specific isotope analysis in the
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Tip of the iceberg? Three novel TOPLESS‐interacting effectors of the gall‐inducing fungus Ustilago maydis New Phytol. (IF 8.3) Pub Date : 2024-07-18 Mamoona Khan, Simon Uhse, Janos Bindics, Benjamin Kogelmann, Nithya Nagarajan, Riaz Tabassum, Kishor D. Ingole, Armin Djamei
Summary Ustilago maydis is a biotrophic pathogen causing smut disease in maize. It secretes a cocktail of effector proteins, which target different host proteins during its biotrophic stages in the host plant. One such class of proteins we identified previously is TOPLESS (TPL) and TOPLESS‐RELATED (TPR) transcriptional corepressors. Here, we screened 297 U. maydis effector candidates for their ability
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No transgene needed Nat. Plants (IF 15.8) Pub Date : 2024-07-17 Guillaume Tena
One alternative approach is to create targeted genetic variability from within, with no need to transfer genes from other species. The best tool for this is CRISPR-based mutagenesis. Although the targets of mutations can be gene-coding sequences, a promising approach is to modify cis-regulatory sequences or promoters. This approach leads to fewer off-target, pleiotropic or epistasis unwanted perturbations
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Enhanced efficacy of glycoengineered rice cell‐produced trastuzumab Plant Biotech. J. (IF 10.1) Pub Date : 2024-07-17 Jun‐Hye Shin, Sera Oh, Mi‐Hwa Jang, Seok‐Yong Lee, Chanhong Min, Young‐Jae Eu, Hilal Begum, Jong‐Chan Kim, Gap Ryol Lee, Han‐Bin Oh, Matthew J. Paul, Julian K.‐C. Ma, Ho‐Shin Gwak, Hyewon Youn, Seong‐Ryong Kim
SummaryFor several decades, a plant‐based expression system has been proposed as an alternative platform for the production of biopharmaceuticals including therapeutic monoclonal antibodies (mAbs), but the immunogenicity concerns associated with plant‐specific N‐glycans attached in plant‐based biopharmaceuticals has not been completely solved. To eliminate all plant‐specific N‐glycan structure, eight
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A transcriptional repressor HVA regulates vascular bundle formation through auxin transport in Arabidopsis stem New Phytol. (IF 8.3) Pub Date : 2024-07-17 Qian Du, Bingjian Yuan, Gaurav Thapa Chhetri, Tong Wang, Liying Qi, Huanzhong Wang
Summary Vascular bundles transport water and photosynthate to all organs, and increased bundle number contributes to crop lodging resistance. However, the regulation of vascular bundle formation is poorly understood in the Arabidopsis stem. We report a novel semi‐dominant mutant with high vascular activity, hva‐d, showing increased vascular bundle number and enhanced cambium proliferation in the stem
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GIS‐based G × E modeling of maize hybrids through enviromic markers engineering New Phytol. (IF 8.3) Pub Date : 2024-07-17 Rafael T. Resende, Alencar Xavier, Pedro Italo T. Silva, Marcela P. M. Resende, Diego Jarquin, Gustavo E. Marcatti
Summary Through enviromics, precision breeding leverages innovative geotechnologies to customize crop varieties to specific environments, potentially improving both crop yield and genetic selection gains. In Brazil's four southernmost states, data from 183 distinct geographic field trials (also accounting for 2017–2021) covered information on 164 genotypes: 79 phenotyped maize hybrid genotypes for
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Enhancement of in situ detection and imaging of phytohormones in plant tissues by MALDI‐MSI using 2,4‐dihydroxy‐5‐nitrobenzoic acid as a novel matrix New Phytol. (IF 8.3) Pub Date : 2024-07-17 Lulu Chen, Yue Zhang, Qichen Hao, Jinxiang Fu, Zhibin Bao, Yufen Bu, Na Sun, Xinyuan Wu, Liang Lu, Zhaosheng Kong, Liang Qin, Yijun Zhou, Yanping Jing, Xiaodong Wang
Summary Phytohormones possess unique chemical structures, and their physiological effects are regulated through intricate interactions or crosstalk among multiple phytohormones. MALDI‐MSI enables the simultaneous detection and imaging of multiple hormones. However, its application for tracing phytohormones is currently restricted by low abundance of hormone in plant and suboptimal matrix selection
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Lingering legacies Nat. Plants (IF 15.8) Pub Date : 2024-07-16 Catherine Walker
A well-known example is conspecific negative density dependence (CNDD) — the concept that the local abundance of a species negatively affects the establishment and performance of neighbouring seedlings of the same species. A study published in Nature (L. Hülsmann et al. Nature 627, 564–571; 2024), and discussed in Nature Plants (J. A. LaManna. Nat. Plants 10, 701–702; 2024), demonstrates the importance