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A novel signaling pathway required for arabidopsis endodermal root organization shapes the rhizosphere microbiome Plant Cell Physiol. (IF 4.062) Pub Date : 2021-01-20 Julius Durr; Guilhem Reyt; Stijn Spaepen; Sally Hilton; Cathal Meehan; Qi Wu; Takehiro Kamiya; Paulina Flis; Hugh G Dickinson; Attila Feher; Umashankar Shivshankar; Pavagadhi Shruti; Sanjay Swarup; David Salt; Gary D Bending; Jose Gutierrez-Marcos
The Casparian Strip (CS) constitutes a physical diffusion barrier to water and nutrients in plant roots, which is formed by the polar deposition of lignin polymer in the endodermis tissue. The precise pattern of lignin deposition is determined by the scaffolding activity of membrane-bound Casparian Strip domain proteins (CASPs), but little is known of the mechanism(s) directing this process. Here,
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Special Issue on Gibberellin: A Fascinating Substance That Still Attracts Plant Scientists Plant Cell Physiol. (IF 4.062) Pub Date : 2020-10-15 Yoshida H, Nakajima M, Matsuoka M.
Agronomic performanceEvolutionGibberellinRegulatory mechanismTransport
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Hormonal Diterpenoids Distinct to Gibberellins Regulate Protonema Differentiation in the Moss Physcomitrium patens Plant Cell Physiol. (IF 4.062) Pub Date : 2020-10-15 Nakajima M, Miyazaki S, Kawaide H.
AbstractPlants synthesize gibberellin (GA), a diterpenoid hormone, via ent-kaurenoic acid (KA) oxidation. GA has not been detected in the moss Physcomitrium patens despite its ability to synthesize KA. It was recently shown that a KA metabolite, 3OH-KA, was identified as an active regulator of protonema differentiation in P. patens. An inactive KA metabolite, 2OH-KA, was also identified in the moss
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Autophagy contributes to quality control of leaf mitochondria Plant Cell Physiol. (IF 4.062) Pub Date : 2020-12-23 Sakuya Nakamura; Shinya Hagihara; Kohei Otomo; Hiroyuki Ishida; Jun Hidema; Tomomi Nemoto; Masanori Izumi
In autophagy, cytoplasmic components of eukaryotic cells are transported to lysosomes or the vacuole for degradation. Autophagy is involved in plant tolerance to the photooxidative stress caused by ultraviolet B (UVB) radiation, but its roles in plant adaptation to UVB damage have not been fully elucidated. Here, we characterized organellar behavior in UVB-damaged Arabidopsis (Arabidopsis thaliana)
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12-Oxophytodienoic Acid Reductase 3 (OPR3) Functions as NADPH-Dependent α,β-Ketoalkene Reductase in Detoxification and Monodehydroascorbate Reductase in Redox Homeostasis. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-22
Daniel Maynard, Vijay Kumar, Jens Sproß and Karl- Josef Dietz
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Overexpression and inhibition of 3-hydroxy-3-methylglutaryl-CoA synthase affect central metabolic pathways in tobacco Plant Cell Physiol. (IF 4.062) Pub Date : 2020-12-19 Pan Liao; Shiu-Cheung Lung; Wai Lung Chan; Menglong Hu; Geoffrey Kwai-Wai Kong; Thomas J Bach; Quan Hao; Clive Lo; Mee-Len Chye
Little has been established on the relationship between the mevalonate (MVA) pathway and other metabolic pathways except for the sterol and glucosinolate biosynthesis pathways. In the MVA pathway, 3-hydroxy-3-methylglutaryl-CoA synthase (HMGS) catalyses the condensation of acetoacetyl-CoA and acetyl-CoA to form HMG-CoA. Our previous studies had shown that while the recombinant Brassica juncea HMGS1
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The Dual Function of OsSWEET3a as a Gibberellin and Glucose Transporter Is Important for Young Shoot Development in Rice Plant Cell Physiol. (IF 4.062) Pub Date : 2020-10-26 Morii M, Sugihara A, Takehara S, et al.
AbstractTranslocation and long-distance transport of phytohormones are considered important processes for phytohormone responses, as well as their synthesis and signaling. Here, we report on the dual function of OsSWEET3a, a bidirectional sugar transporter from clade I of the rice SWEET family of proteins, as both a gibberellin (GA) and a glucose transporter. OsSWEET3a efficiently transports GAs in
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Evolution of GA Metabolic Enzymes in Land Plants Plant Cell Physiol. (IF 4.062) Pub Date : 2020-10-13 Yoshida H, Takehara S, Mori M, et al.
AbstractGibberellins (GAs) play key roles in various developmental processes in land plants. We studied the evolutionary trends of GA metabolic enzymes through a comprehensive homology search and phylogenetic analyses from bryophytes to angiosperms. Our analyses suggest that, in the process of evolution, plants were able to acquire GA metabolic enzymes in a stepwise manner and that the enzymes had
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Ralstonia solanacearum Type III Effector RipAC Targets SGT1 to Suppress Effector-triggered Immunity Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-29 Masahito Nakano; Yuki Ichinose; Takafumi Mukaihara
Ralstonia solanacearum injects type III effectors into host cells to cause bacterial wilt in Solanaceae plants. To identify R. solanacearum effectors that suppress effector-triggered immunity (ETI) in plants, we evaluated R. solanacearum RS1000 effectors for their ability to suppress a hypersensitive response (HR) induced by the avirulence (Avr) effector RipAA in Nicotiana benthamiana. Out of the 11
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Potato Virus X Vector-Mediated DNA-Free Genome Editing in Plants Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-29 Ariga H, Toki S, Ishibashi K.
AbstractGenome editing technology is important for plant science and crop breeding. Genome-edited plants prepared using general CRISPR-Cas9 methods usually contain foreign DNA, which is problematic for the production of genome-edited transgene-free plants for vegetative propagation or highly heterozygous hybrid cultivars. Here, we describe a method for highly efficient targeted mutagenesis in Nicotiana
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Analysis of the function of the alfalfa MsLEA-D34 gene in abiotic stress responses and flowering time. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-25 Aimin Lv,Liantai Su,Wuwu Wen,Nana Fan,Peng Zhou,Yuan An
A novel late embryogenesis abundant (LEA) gene, MsLEA-D34, was cloned from alfalfa (Medicago sativa L.). Its function and gene regulatory pathways were studied via overexpression and RNAi of the gene in Arabidopsis and hairy roots of alfalfa, as well as via analyzing key genes related to MsLEA-D34 during developmental phases of alfalfa. The results showed that MsLEA-D34 was a typical intrinsically
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Grapevine U-box E3 ubiquitin ligase VlPUB38 negatively regulates fruit ripening by facilitating abscisic-aldehyde oxidase degradation. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-25 Yihe Yu,Xiangxuan Meng,Dalong Guo,Shengdi Yang,Guohai Zhang,Zhenchang Liang
The plant U-box E3 ubiquitin ligases-mediated ubiquitin/26S proteasome degradation system plays a key role in plant growth and development. Previously screened from the grape PUB gene family, PUB38 was shown to participate in the berry ripening progress. Here, we demonstrate the E3 ligase VlPUB38 mediates abscisic acid (ABA) synthesis via 26S proteasome degradation and its involvement in regulating
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TAG… You're It, Synechocystis sp. PCC 6803! Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-10 Jeffrey C Cameron
CyanobacteriaSynechocystis sp. PCC 6803TAG biosynthesisTriacylglycerol
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Dissecting MicroRNA-mRNA Regulatory Networks Underlying Sulfur Assimilation and Cadmium Accumulation in Poplar Leaves. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-17 Wenguang Shi,Wenzhe Liu,Chaofeng Ma,Yuhong Zhang,Shen Ding,Wenjian Yu,Shurong Deng,Jing Zhou,Hong Li,Zhi-Bin Luo
The process of cadmium (Cd) accumulation and detoxification under different sulfur levels remains largely unknown in woody plants. To investigate the physiological and transcriptomic regulation mechanisms of poplars in response to different sulfate (S) supply levels and Cd exposure, we exposed Populus deltoides saplings to one of the low, moderate and high S levels together with either 0 or 50 µM Cd
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A Cys2/His2 zinc finger protein acts as a repressor of green revolution gene SD1/OsGA20ox2 in rice (Oryza sativa L.). Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-23 Min Duan,Xiao-Juan Ke,Hong-Xia Lan,Xi Yuan,Peng Huang,En-Shun Xu,Xiu-Ying Gao,Ru-Qin Wang,Hai-Juan Tang,Hong-Sheng Zhang,Ji Huang
Gibberellins (GAs) play important roles in the regulation of plant growth and development. The green revolution gene SD1 encoding gibberellin 20-oxidase 2 (GA20ox2) has been widely used in modern rice breeding. However, the molecular mechanism of how SD1/OsGA20ox2 expression is regulated remains unclear. Here we report a Cys2/His2 zinc finger protein ZFP207 acting as a transcriptional repressor of
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Advances in chemical priming to enhance abiotic stress tolerance in plants. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-23 Kaori Sako,Huong Mai Nguyen,Motoaki Seki
Abiotic stress is considered as a major factor limiting crop yield and quality. Development of effective strategies that mitigate abiotic stress is essential for sustainable agriculture and food security, especially with continuing global population growth. Recent studies have demonstrated that exogenous treatment of plants with chemical compounds can enhance abiotic stress tolerance by inducing molecular
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Jasmonic acid- and ethylene-induced mitochondrial alternative oxidase stimulates anti-Marssonina brunnea defense in poplar. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-18 Yangwenke Liao,Rongrong Cui,Xin Xu,Qiang Cheng,Xiaogang Li
Mitochondrial processes are implicated in plant response to biotic stress caused by viruses, actinomyces, bacteria, and pests, but its function in defense against fungal invasion remain unclear. Here, we investigated the role and regulation of mitochondrial alternative oxidase (AOX) in response to black spot disease caused by hemibiotrophic fungus Marssonina brunnea in poplar. M. brunnea inoculation
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Choline-mediated lipid reprogramming as a dominant salt tolerance mechanism in grass species lacking glycine betaine. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-15 Kun Zhang,Weiting Lyu,Yanli Gao,Xiaxiang Zhang,Yan Sun,Bingru Huang
Choline, as a precursor of glycine betaine (GB) and phospholipids, is known to play roles in plant tolerance to salt stress, but the downstream metabolic pathways regulated by choline conferring salt tolerance are still unclear for non-GB accumulating species. The objectives were to examine how choline affect salt tolerance in a non-GB accumulating grass species and to determine major metabolic pathways
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EXPath 2.0: An Updated Database for Integrating High-Throughput Gene Expression Data with Biological Pathways. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-08 Kuan-Chieh Tseng,Guan-Zhen Li,Yu-Cheng Hung,Chi-Nga Chow,Nai-Yun Wu,Yi-Ying Chien,Han-Qin Zheng,Tzong-Yi Lee,Po-Li Kuo,Song-Bin Chang,Wen-Chi Chang
Co-expressed genes tend to have regulatory relationships and participate in similar biological processes. Construction of gene correlation networks from microarray or RNA-seq expression data have been widely applied to study transcriptional regulatory mechanisms and metabolic pathways under specific conditions. Furthermore, since transcription factors are critical regulators of gene expression, it
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Identification of a Unique Type of Isoflavone O-methyltransferase, GmIOMT1, based on Multi-omics Analysis of Soybean under Biotic Stress. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-07 Kai Uchida,Yuji Sawada,Koji Ochiai,Muneo Sato,Jun Inaba,Masami Yokota Hirai
AbstractIsoflavonoids are commonly found in leguminous plants. Glycitein is one of the isoflavones produced by soybean. The genes encoding the enzymes in the isoflavone biosynthetic pathway have mostly been identified and characterized. However, the gene(s) for isoflavone O-methyltransferase (IOMT), which catalyzes the last step of glycitein biosynthesis, has not yet been identified. In this study
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Changes in photosynthetic electron transport during leaf senescence in two barley varieties grown in contrasting growth regimes. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-04 Ginga Shimakawa,Thomas Roach,Anja Krieger-Liszkay
Leaf senescence is an important process for plants to remobilize a variety of metabolites and nutrients to sink tissues, such as developing leaves, fruits and seeds. It has been suggested that reactive oxygen species (ROS) play an important role in the initiation of leaf senescence. Flag leaves of two different barley varieties, cv. Lomerit and cv. Carina, showed differences in the loss of photosystems
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Regulation of DELLA Proteins by Post-translational Modifications. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-09-04 Noel Blanco-Touriñán,Antonio Serrano-Mislata,David Alabadí
AbstractDELLA proteins are the negative regulators of the gibberellin (GA) signaling pathway. GAs have a pervasive effect on plant physiology, influencing processes that span the entire life cycle of the plant. All the information encoded by GAs, either environmental or developmental in origin, is canalized through DELLAs, which modulate the activity of many transcription factors and transcriptional
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The Crosstalk between MicroRNAs and Gibberellin Signalling in Plants. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-26 Sha Yu,Jia-Wei Wang
AbstractGibberellin (GA) is an integral phytohormone that plays prominent roles in controlling seed germination, stem elongation, leaf development and floral induction. It has been shown that GA regulates these diverse biological processes mainly through overcoming the suppressive effects of the DELLA proteins, a family of nuclear repressors of GA response. MicroRNAs (miRNAs), which have been identified
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Explainable deep learning reproduce a "professional eye" on the diagnosis of internal disorders in persimmon fruit. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-26 Takashi Akagi,Masanori Onishi,Kanae Masuda,Ryohei Kuroki,Kohei Baba,Kouki Takeshita,Tetsuya Suzuki,Takeshi Niikawa,Seiichi Uchida,Takeshi Ise
AbstractRecent rapid progress in deep neural network techniques has allowed recognition and classification of various objects, often exceeding the performance of the human eye. In plant biology and crop sciences, some deep neural network frameworks have been applied mainly for effective and rapid phenotyping. In this study, beyond simple optimizations of phenotyping, we propose an application of deep
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Maize Defective Kernel605 Encodes a Canonical DYW-Type PPR Protein That Edits a Conserved Site of nad1 and Is Essential for Seed Nutritional Quality. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-20 Kaijian Fan,Yixuan Peng,Zhenjing Ren,Delin Li,Sihan Zhen,Stefan Hey,Yu Cui,Junjie Fu,Riliang Gu,Jianhua Wang,Guoying Wang,Li Li
AbstractPentatricopeptide repeat (PPR) proteins involved in mitochondrial RNA cytidine (C)-to-uridine (U) editing mostly result in stagnant embryo and endosperm development upon loss of function. However, less is known about PPRs that are involved in farinaceous endosperm formation and maize quality. Here, we cloned a maize DYW-type PPR Defective Kernel605 (Dek605). Mutation of Dek605 delayed seed
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Reactive carbonyl species mediate methyl jasmonate-induced stomatal closure. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-18 Md Moshiul Islam,Wenxiu Ye,Fahmida Akter,Mohammad Saidur Rhaman,Daiki Matsushima,Shintaro Munemasa,Eiji Okuma,Yoshimasa Nakamura,Md Sanaullah Biswas,Jun'ichi Mano,Yoshiyuki Murata
Production of reactive oxygen species (ROS) is a key signal event for methyl jasmonate (MeJA)- and abscisic acid (ABA)-induced stomatal closure. We recently showed that reactive carbonyl species (RCS) stimulates stomatal closure as an intermediate downstream of hydrogen peroxide (H2O2) production in the ABA signaling pathway in guard cells of Nicotiana tabacum and Arabidopsis thaliana. In this study
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Glutamate-Induced Electrical and Calcium Signals in the Moss Physcomitrella patens. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-18 Mateusz Koselski,Piotr Wasko,Kamil Derylo,Marek Tchorzewski,Kazimierz Trebacz
The mode of transmission of signals between plant cells is an important aspect of plant physiology. The main role in generation of long-distance signals is played by changes in the membrane potential and cytoplasm calcium concentration, but the relation between these responses evoked by the same stimuli in the same plant remains unknown. As one of the first plant which colonized lands, the moss Physcomitrella
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Alcohol dehydrogenase activity converts 3"-hydroxygeranylhydroquinone to an aldehyde intermediate for shikonin and benzoquinone derivatives in Lithospermum erythrorhizon. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-18 Hirobumi Yamamoto,Mika Tsukahara,Yumiko Yamano,Akimori Wada,Kazufumi Yazaki
Shikonin derivatives are red naphthoquinone pigments produced by several boraginaceous plants, such as Lithospermum erythrorhizon. These compounds are biosynthesized from p-hydroxybenzoic acid and geranyl diphosphate. The coupling reaction that yields m-geranyl-p-hydroxybenzoic acid has been actively characterized, but little is known about later biosynthetic reactions. Although 3"-hydroxy-geranylhydroquinone
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CorrigendumMulti-Trait Genome-Wide Association Studies Reveal Loci Associated with Maize Inflorescence and Leaf Architecture. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-19 Brian R Rice,Samuel B Fernandes,Alexander E Lipka
Plant and Cell Physiology, Volume 61, Issue 8, 2020, Pages 1427–1437, https://doi.org/10.1093/pcp/pcaa039
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The Diverse Roles of Rice PHO1 in Phosphate Transport: From Root to Node to Grain. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-20 Tzyy-Jen Chiou
NodePHO1PhosphorousPhosphateTransporter
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Exploration of Life-Course Factors Influencing Phenotypic Outcomes in Crops. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-10 Keiichi Mochida,Alexander E Lipka,Takashi Hirayama
CropLife-course approachPlant–environment interaction
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The SUPPRESSOR of MAX2 1 (SMAX1)-Like SMXL6, SMXL7 and SMXL8 Act as Negative Regulators in Response to Drought Stress in Arabidopsis. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-02 Tao Yang,Yuke Lian,Jihong Kang,Zhiyuan Bian,Lijuan Xuan,Zhensheng Gao,Xinyu Wang,Jianming Deng,Chongying Wang
Drought represents a major threat to crop growth and yields. Strigolactones (SLs) contribute to regulating shoot branching by targeting the SUPPRESSOR OF MORE AXILLARY GROWTH2 (MAX2)-LIKE6 (SMXL6), SMXL7 and SMXL8 for degradation in a MAX2-dependent manner in Arabidopsis. Although SLs are implicated in plant drought response, the functions of the SMXL6, 7 and 8 in the SL-regulated plant response to
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Evolution of Labdane-Related Diterpene Synthases in Cereals. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-18 Tomonobu Toyomasu,Matthew R Shenton,Kazunori Okada
AbstractGibberellins (GAs) are labdane-related diterpenoid phytohormones that regulate various aspects of higher plant growth. A biosynthetic intermediate of GAs is ent-kaurene, a tetra-cyclic diterpene that is produced through successive cyclization of geranylgeranyl diphosphate catalyzed by the two distinct monofunctional diterpene synthases—ent-copalyl diphosphate synthase (ent-CPS) and ent-kaurene
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The VvSUPERMAN-like Gene is Differentially Expressed Between Bicarpellate and Tricarpellate Florets of Vitis vinifera L. cv. 'Xiangfei' and its Heterologous Expression Reduces Carpel Number in Tomato. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-06 Jinjun Liang,Pingyin Guan,Zhenhua Liu,Yan Wang,Jiayi Xing,Jianfang Hu
Multicarpellate fruits are larger and produce more seeds than mono- or bicarpellate fruits, enhancing the reproductive capacity of the plant. To identify the phenotypic and molecular differences among florets of different carpel types, we studied carpel formation and fusion in the grapevine (Vitis vinifera) cultivar ‘Xiangfei’, which produces a high proportion of multicarpellate fruit. We also determined
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Super-Resolution Fluorescence Imaging of Arabidopsis thaliana Transfer Cell Wall Ingrowths Using Pseudo-Schiff Labelling Adapted for the Use of Different Dyes. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-06 Angus E Rae,Xiaoyang Wei,Neftali Flores-Rodriguez,David W McCurdy,David A Collings
To understand plant growth and development, it is often necessary to investigate organisation of plant cells and plant cell walls. Plant cell walls are often fluorescently labelled for confocal imaging with the dye propidium iodide using a pseudo-Schiff reaction. This reaction binds free amine groups on dye molecules to aldehyde groups on cellulose that result from oxidation with periodic acid. We
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Gibberellin metabolism and signaling: targets for improving agronomic performance of crops. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-06 Shaopei Gao,Chengcai Chu
AbstractGibberellins (GAs) are a class of tetracyclic diterpenoid phytohormones that regulate many aspects of plant development, including seed germination, stem elongation, leaf expansion, pollen maturation, and the development of flowers, fruits and seeds. During the past decades, the primary objective of crop breeding programs has been to increase productivity or yields. ‘Green Revolution’ genes
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Epigenetic regulation of gibberellin metabolism and signaling. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-08-03 Yongyao Xie,Letian Chen
AbstractThe precise regulation of gibberellin (GA) metabolism and signaling is essential for plant development and environmental responses. Epigenetic regulatory mechanisms, such as histone modification, noncoding RNA-mediated regulation, chromatin remodeling and DNA methylation, are emerging as important means of fine-tuning gene expression. Recent studies have significantly improved our understanding
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Functional Characterization of Terpene Synthases Accounting for the Volatilized-terpene Heterogeneity in Lathyrus odoratus Cultivar Flowers. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-29 Tingting Bao,Kimani Shadrack,Song Yang,Xinxin Xue,Shuying Li,Ning Wang,Qiuyue Wang,Li Wang,Xiang Gao,Quentin Cronk
Lathyrus odoratus (sweet pea) is an ornamental plant with exceptional floral scent, previously used as an experimental organism in the early development of Mendelian genetics. However, its terpene synthases (TPS), which act as metabolic gatekeepers in the biosynthesis of volatile terpenoids, remain to be characterized. Auto-Headspace Solid-phase Microextraction/GC-MS analysis of floral volatile terpene
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Requirements of Qa-SNARE LjSYP132s for nodulation and seed development in Lotus japonicus. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-24 Aoi Sogawa,Issei Takahashi,Masaharu Kyo,Haruko Imaizumi-Anraku,Shigeyuki Tajima,Mika Nomura
SNARE (soluble N-ethyl maleimide sensitive factor attachment protein receptor) mediates membrane fusion of vesicle transport in eukaryotic cells. LjSYP132s is a member of Qa-SNAREs in Lotus japonicus, and two isoforms, LjSYP132a and LjSYP132b, are generated by alternative splicing. Immunoblot analysis showed LjSYP132s antibody was expressed strongly in infected root nodules and seeds by post-transcriptional
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An evolutionarily primitive and distinct auxin metabolism in the lycophyte Selaginella moellendorffii. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-22 Shutaro Kaneko,Sam David Cook,Yuki Aoi,Akie Watanabe,Ken-Ichiro Hayashi,Hiroyuki Kasahara
Auxin is a key regulator of plant growth and development. Indole-3-acetic acid (IAA), a plant auxin, is mainly produced from tryptophan via indole-3-pyruvate (IPA) in both bryophytes and angiosperms. Angiosperms have multiple, well documented IAA inactivation pathways, involving conjugation to IAA-aspartate/glutamate by the GH3 auxin-amido synthetases, and oxidation to 2-oxoindole-3-acetic acid (oxIAA)
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Plant PPRs come in multiple flavors - but why? Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-20 Volker Knoop
Alkaloid biosynthesisERF transcription factorsGene clustersNicotineTranscriptional regulation
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Manganese Treatment Alleviates Zinc Deficiency Symptoms in Arabidopsis Seedlings. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-17 Sayuri Nakayama,Shigeo S Sugano,Haruna Hirokawa,Izumi C Mori,Hiroyuki Daimon,Sachie Kimura,Yoichiro Fukao
Plant phenotypes caused by mineral deficiencies differ depending on growth conditions. We recently reported that the growth of Arabidopsis thaliana was severely inhibited on MGRL-based zinc (Zn)-deficient medium but not on MS-based Zn-deficient medium. Here, we explored the underlying reason for the phenotypic differences in Arabidopsis grown on different media. The root growth and chlorophyll contents
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Aspartate Residues in a Forisome-forming SEO Protein are Critical for Protein Body Assembly and Ca2+-Responsiveness Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-16 Yan Liu; Winfried S Peters; Daniel R Froelich; Alexander H Howell; Sutton Mooney; James E Evans; Hanjo A Hellmann; Michael Knoblauch
Forisomes are protein bodies known exclusively from sieve elements of legumes. Forisomes contribute to the regulation of phloem transport due to their unique Ca2+-controlled, reversible swelling. The assembly of forisomes from SEO (sieve element occlusion) protein monomers in developing sieve elements and the mechanism(s) of Ca2+-dependent forisome contractility are poorly understood because the amino
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The current status of research on gibberellin biosynthesis. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-11 Peter Hedden
AbstractGibberellins are produced by all vascular plants and several fungal and bacterial species that associate with plants as pathogens or symbionts. In the 60 years since the first experiments on the biosynthesis of gibberellic acid in the fungus Fusarium fujikuroi, research on gibberellin biosynthesis has advanced to provide detailed information on the pathways, biosynthetic enzymes and their genes
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Complete Replacement of the Galactolipid Biosynthesis Pathway with a Plant-Type Pathway in the Cyanobacterium Synechococcus elongatus PCC 7942. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-09 Egi Tritya Apdila,Shukumi Inoue,Mie Shimojima,Koichiro Awai
Monogalactosyldiacylglycerol (MGDG) and digalactosyldiacylglycerol (DGDG) are the major components of thylakoid membranes and well-conserved from cyanobacteria to chloroplasts. However, cyanobacteria and chloroplasts synthesize these galactolipids using different pathways and enzymes, but they are believed to share a common ancestor. This fact implies that there was a replacement of the cyanobacterial
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CsSWEET1a and CsSWEET17 Mediate Growth and Freezing Tolerance by Promoting Sugar Transport across the Plasma Membrane. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-09 Lina Yao,Changqing Ding,Xinyuan Hao,Jianming Zeng,Yajun Yang,Xinchao Wang,Lu Wang
Sugars Will Eventually be Exported Transporters (SWEETs) are important in plant biological processes. Expression levels of CsSWEET1a and CsSWEET17 are induced by cold acclimation (CA) and cold stress in Camellia sinensis. Here, we found that CsSWEET17 was alternatively spliced, and its exclusion (Ex) transcript was associated with the CA process. Both plasma membrane-localized CsSWEET1a and CsSWEET17
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A Methionine Sulfoxide Reductase B Is Required for the Establishment of Astragalus sinicus-Mesorhizobium Symbiosis. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-07-03 Zaiyong Si,Ning Guan,Yuan Zhou,Lingli Mei,Yixing Li,Youguo Li
Methionine sulfoxide reductase B (MsrB) is involved in oxidative stress or defense responses in plants. However, little is known about its role in legume–rhizobium symbiosis. In this study, an MsrB gene was identified from Astragalus sinicus and its function in symbiosis was characterized. AsMsrB was induced under phosphorus starvation and displayed different expression patterns under symbiotic and
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Letter to the Editor: The Role of Auxin in Late Stamen Development. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-27 Maura Cardarelli,Roberta Ghelli
In a recent mini review on jasmonate signaling in Arabidopsis stamens published in this journal, Acosta and Przybyl (2019) devote an entire section to the role of auxin in stamen development highlighting what they define as ‘inconsistencies’ in the models proposed in the current literature.
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Letter to the Editor: Author Response-The Role of Auxin in Late Stamen Development. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-27 Ivan F Acosta
Anther dehiscenceARF6ARF8AUX–IAAAuxinFilament elongation
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OsHDA710-Mediated Histone Deacetylation Regulates Callus Formation of Rice Mature Embryo. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-27 Haidao Zhang,Fu Guo,Peipei Qi,Yizi Huang,Yongyao Xie,Lei Xu,Ning Han,Lin Xu,Hongwu Bian
Histone deacetylases (HDACs) play important roles in the regulation of eukaryotic gene expression. The role of HDACs in specialized transcriptional regulation and biological processes is poorly understood. In this study, we evaluated the global expression patterns of genes related to epigenetic modifications during callus initiation in rice. We found that the repression of HDAC activity by trichostatin
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De Novo Shoot Regeneration Controlled by HEN1 and TCP3/4 in Arabidopsis. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-24 Woorim Yang,Myung-Hwan Choi,Bosl Noh,Yoo-Sun Noh
Plants have the ability to regenerate whole plant body parts, including shoots and roots, in vitro from callus derived from a variety of tissues. However, the underlying mechanisms for this de novo organogenesis, which is based on the totipotency of callus cells, are poorly understood. Here, we report that a microRNA (miRNA)-mediated posttranscriptional regulation plays an important role in de novo
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Trichomes at the Base of the Petal Are Regulated by the Same Transcription Factors as Cotton Seed Fibers. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-24 Jiafu Tan,Sally-Anne Walford,Elizabeth S Dennis,Danny J Llewellyn
Many polypetalous plants have a constriction at the base of the petal that leaves a small gap that can provide entry into the young flower bud before the reproductive organs are fully developed. In cotton (Gossypium hirsutum L.), this gap is occluded by tufts of short unicellular trichomes superficially resembling the fibers found on cotton seeds. We are just beginning to understand the developmental
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Spermine Regulates Water Balance Associated with Ca2+-Dependent Aquaporin (TrTIP2-1, TrTIP2-2 and TrPIP2-7) Expression in Plants under Water Stress. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-16 Zhou Li,Jieru Hou,Yan Zhang,Weihang Zeng,Bizhen Cheng,Muhammad Jawad Hassan,Youzhi Zhang,Qi Pu,Yan Peng
Spermine (Spm) regulates water balance involved in water channel proteins, aquaporins (AQPs), in plants. An increase in endogenous Spm content via exogenous Spm application significantly improved cell membrane stability, photosynthesis, osmotic adjustment (OA) and water use efficiency (WUE) contributing to enhanced tolerance to water stress in white clover. Spm upregulated TrTIP2-1, TrTIP2-2 and TrPIP2-7
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The N-Terminal Acetyltransferase Naa50 Regulates Arabidopsis Growth and Osmotic Stress Response. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-16 Jinlin Feng,Jianxin Hu,Yan Li,Ruiqi Li,Hao Yu,Ligeng Ma
N-terminal acetylation (Nt-acetylation) is one of the most common protein modifications in eukaryotes. The function of Naa50, the catalytic subunit of the evolutionarily conserved N-terminal acetyltransferase (Nat) E complex, has not been reported in Arabidopsis. In this study, we found that a loss of Naa50 resulted in a pleiotropic phenotype that included dwarfism and sterility, premature leaf senescence
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Two novel PLS-class pentatricopeptide repeat proteins are involved in the group II intron splicing of mitochondrial transcripts in the moss Physcomitrella patens. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-11 Mizuho Ichinose,Airi Ishimaru,Chieko Sugita,Kensaku Nakajima,Yasuhiro Kawaguchi,Mamoru Sugita
Pentatricopeptide repeat (PPR) proteins are RNA binding proteins that function in posttranscriptional regulation as gene-specific regulators of RNA metabolism in plant organelles. Plant PPR proteins are divided into four classes: P, PLS, E and DYW. The E- and DYW-class proteins are mainly implicated in RNA editing, whereas most of the P-class proteins predominantly participate in RNA cleavage, splicing
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Molecular and Physiological Alterations in Chickpea under Elevated CO2 Concentrations. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-05 Paramita Palit,Raju Ghosh,Priya Tolani,Avijit Tarafdar,Annapurna Chitikineni,Prasad Bajaj,Mamta Sharma,Himabindu Kudapa,Rajeev K Varshney
The present study reports profiling of the elevated carbon dioxide (CO2) concentration responsive global transcriptome in chickpea, along with a combinatorial approach for exploring interlinks between physiological and transcriptional changes, important for the climate change scenario. Various physiological parameters were recorded in two chickpea cultivars (JG 11 and KAK 2) grown in open top chambers
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Proteasomal Degradation of Proteins Is Important for the Proper Transcriptional Response to Sulfur Deficiency Conditions in Plants. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-05 Anna Wawrzyńska,Agnieszka Sirko
Plants are continuously exposed to different abiotic and biotic stresses; therefore, to protect themselves, they depend on the fast reprogramming of large gene repertoires to prioritize the expression of a given stress-induced gene set over normal cellular household genes. The activity of the proteasome, a large proteolytic complex that degrades proteins, is vital to coordinate the expression of such
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Chlororespiration Serves as Photoprotection for the Photo-Inactivated Oxygen-Evolving Complex in Zostera marina, a Marine Angiosperm. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-03 Ying Tan,Quan Sheng Zhang,Wei Zhao,Zhe Liu,Ming Yu Ma,Ming Yu Zhong,Meng Xin Wang,Bin Xu
As an alternative electron sink, chlororespiration, comprised of the NAD(P)H dehydrogenase complex and plastid terminal plastoquinone oxidase, may play a significant role for sustaining the redox equilibrium between stroma and thylakoid membrane. This study identified a distinct role of chlororespiration in the marine angiosperm Zostera marina, whose oxygen evolving complex (OEC) is prone to photo-inactivation
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Node-Localized Transporters of Phosphorus Essential for Seed Development in Rice. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-02 Jing Che,Naoki Yamaji,Takaaki Miyaji,Namiki Mitani-Ueno,Yuri Kato,Ren Fang Shen,Jian Feng Ma
About 60–85% of total phosphorus (P) in cereal crops is finally allocated to seeds, where it is required for seed development, germination and early growth. However, little is known about the molecular mechanisms underlying P allocation to seeds. Here, we found that two members (OsPHO1;1 and OsPHO1;2) of the PHO1 gene family are involved in the distribution of P to seeds in rice. Both OsPHO1;1 and
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Identification of Genes Conferring Plant Salt Tolerance using GWAS: Current Success and Perspectives. Plant Cell Physiol. (IF 4.062) Pub Date : 2020-06-02 Bo Li
An understanding of the molecular mechanisms that underlie plant salt tolerance is important for both economic and scientific interests. Genome-wide association study (GWAS) is a promising approach to pinpoint genes that confer plant salt tolerance. With the advancement of supporting technology and methodology, GWAS has enabled the discovery of genes that play central roles in regulating plant salt
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