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Plant Cell

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https://read.qxmd.com/read/30979795/a-functional-allele-of-csful1-regulates-fruit-length-through-inhibiting-cssup-and-auxin-transport-in-cucumber
#1
Jianyu Zhao, Li Jiang, Gen Che, Yupeng Pan, Yanqiang Li, Yu Hou, Wensheng Zhao, Yanting Zhong, Lian Ding, Shuangshuang Yan, Chengzhen Sun, Renyi Liu, Liying Yan, Tao Wu, Xuexian Steve Li, Yiqun Weng, Xiaolan Zhang
Fruit length is a prominent agricultural trait during cucumber domestication and diversifying selection; however, the regulatory mechanisms of fruit elongation remain elusive. We found two alleles of the FRUITFULL-like MADS-box gene CsFUL1 with 3393C-A SNP variation among 150 cucumber lines, in which CsFUL1A was specifically enriched in the long-fruited East Asian type cucumbers (China and Japan), whereas the CsFUL1C allele was randomly distributed in natural cucumber populations including wild and semi-wild cucumbers...
April 12, 2019: Plant Cell
https://read.qxmd.com/read/30979794/the-future-is-now-gene-expression-dynamics-at-single-cell-resolution
#2
Rachel M Shahan
No abstract text is available yet for this article.
April 12, 2019: Plant Cell
https://read.qxmd.com/read/30979793/a-growing-reputation-for-fruitfull-genes
#3
Diarmuid S O'Maoileidigh
No abstract text is available yet for this article.
April 12, 2019: Plant Cell
https://read.qxmd.com/read/30962396/basic-leucine-zipper-transcription-factor-67-transactivates-delay-of-germination-1-to-establish-primary-seed-dormancy-in-arabidopsis
#4
Fiona M Bryant, David Hughes, Keywan Hassani-Pak, Peter J Eastmond
Seed dormancy governs the timing of germination; one of the most important developmental transitions in a plant's life cycle. The DELAY OF GERMINATION 1 (DOG1) gene is a key regulator of seed dormancy and a major quantitative trait locus in Arabidopsis thaliana. DOG1 expression is under tight developmental and environmental regulation, but the transcription factors involved are not known. Here we show that basic LEUCINE ZIPPER TRANSCRIPTION FACTOR 67 (bZIP67) acts downstream of the central regulator of seed development LEAFY COTYLEDON 1 to transactivate DOG1 during maturation and help to establish primary dormancy...
April 8, 2019: Plant Cell
https://read.qxmd.com/read/30962395/the-ca2-sensor-scabp3-cbl7-fine-tunes-arabidopsis-alkali-tolerance-and-modulats-plasma-membrane-h-atpase-activity
#5
Yongqing Yang, Yujiao Wu, Liang Ma, Zhijia Yang, Qiuyan Dong, Qinpei Li, Xuping Ni, Joerg Kudla, Chun-Peng Song, Yan Guo
Saline-alkali soil is a major environmental constraint impairing plant growth and crop productivity. In this study, we identify a Ca2+ sensor/kinase/plasma membrane H+-ATPase module as central component conferring alkali tolerance in Arabidopsis. We report that SCaBP3/CBL7 loss-of-function plant exhibits enhanced stress tolerance associated with increased PM H+-ATPase activity and provides fundamental mechanistic insights into the regulation of PM H+-ATPase activity. Consistent with the genetic evidence, interaction analyses, in vivo reconstitution experiments and determination of H+-ATPase activity indicate that interaction of the Ca2+ sensor SCaBP3 with the C-terminal RI domain of the PM H+-ATPase AHA2 facilitates intramolecular interaction of AHA2 C terminus with the Central loop region of the PM H+-ATPase to promote autoinhibition of H+-ATPase activity...
April 8, 2019: Plant Cell
https://read.qxmd.com/read/30962394/maize-vks1-regulates-mitosis-and-cytokinesis-during-early-endosperm-development
#6
Yongcai Huang, Haihai Wang, Xing Huang, Qiong Wang, Jiechen Wang, Dong An, Jiqin Li, Wenqin Wang, Yongrui Wu
Cell number is a critical factor that determines kernel size in maize (Zea mays). Rapid mitotic divisions in early endosperm development produce most of the cells that make up the starchy endosperm; however, the mechanisms underlying early endosperm development remain largely unknown. We isolated a maize mutant that shows a varied-kernel-size phenotype (vks1). Vks1 encodes ZmKIN11, which belongs to the kinesin-14 subfamily and is predominantly expressed in early endosperm development. VKS1 dynamically localizes to the nucleus and microtubules and plays key roles in the migration of free nuclei in the coenocyte as well as in mitosis and cytokinesis in early mitotic divisions...
April 8, 2019: Plant Cell
https://read.qxmd.com/read/30962393/correction-the-arabidopsis-anaphase-promoting-complex-or-cyclosome-molecular-and-genetic-characterization-of-the-apc2-subunit
#7
Arnaud R Capron, Olivier Serralbo, Katalin Fülöp, Florian Frugier, Yves Parmentier, Aiwu Dong, Alain Lecureuil, Philippe Guerche, Eva Kondorosi, Ben Scheres, Pascal Genschik
No abstract text is available yet for this article.
April 8, 2019: Plant Cell
https://read.qxmd.com/read/30962392/cytochrome-b5-is-an-obligate-electron-shuttle-protein-for-syringyl-lignin-biosynthesis-in-arabidopsis
#8
Mingyue Gou, Xiaoman Yang, Yunjun Zhao, Xiuzhi Ran, Yanzhai Song, Chang-Jun Liu
In monolignol biosynthetic pathway, three cytochrome P450-catalzyed reactions essentially determine the structural characteristics of lignin precursors. Among them, ferulate 5-hydroxylase (F5H) is specifically responsible for syringyl (S) lignin subunit formation. NADPH Cytochrome P450 oxidoreductase (CPR) is commonly regarded as the electron carrier for the P450-catalyzed reactions in monolignol biosynthesis. Here we show that cytochrome b5 isoform D (CB5D) is an indispensable electron shuttle intermediate specific for S-lignin biosynthesis...
April 8, 2019: Plant Cell
https://read.qxmd.com/read/30962391/an-rna-chaperone-like-protein-plays-critical-roles-in-chloroplast-mrna-stability-and-translation-in-arabidopsis-and-maize
#9
Jingjing Jiang, Xin Chai, Nikolay Manavski, Rosalind Williams-Carrier, Baoye He, Andreas Brachmann, Daili Ji, Min Ouyang, Yini Liu, Alice Barkan, Jörg Meurer, Li-Xin Zhang, Wei Chi
A key characteristic of chloroplast gene expression is the predominance of posttranscriptional control via numerous nucleus-encoded RNA-binding factors. Here, we explored the essential roles of the S1-domain-containing protein BSF (petB/petD Stabilizing Factor) in the stabilization and translation of chloroplast mRNAs. BSF binds the petB-petD intergenic region, thereby stabilizing 3' processed petB transcripts and stimulating petD translation. BSF also binds the 5' untranslated region of petA and activates its translation...
April 8, 2019: Plant Cell
https://read.qxmd.com/read/30952825/correction-systems-and-trans-system-level-analysis-identifies-conserved-iron-deficiency-responses-in-the-plant-lineage
#10
Eugen Urzica, David Casero, Hiroaki Yamasaki, Scott I Hsieh, Lital N Adler, Steven J Karpowicz, Crysten Blaby-Haas, Steven G Clarke, Joseph A Loo, Matteo Pellegrini, Sabeeha S Merchant
No abstract text is available yet for this article.
April 5, 2019: Plant Cell
https://read.qxmd.com/read/30940685/osspl3-a-sbp-domain-protein-regulates-crown-root-development-in-rice
#11
Yanlin Shao, Hongzhu Zhou, Yun Rong Wu, Hui Zhang, Jian Lin, Xiaoyan Jiang, Qiuju He, Jianshu Zhu, Yong Li, Hao Yu, Chuanzao Mao
The major root system of cereals consists of crown roots (or adventitious roots) which are important for anchoring plants to soil and for water and nutrient uptake. However, the molecular basis of crown root formation is largely unknown. Here, we isolated a rice mutant with fewer crown roots, named lower crown root number1 (lcrn1). Map-based cloning revealed that lcrn1 is caused by a mutation of a putative transcription factor coding gene OsSPL3 (SQUAMOSA PROMOTER-BINDING PROTEIN-LIKE3). We demonstrate that the point mutation in lcrn1 perturbs the OsmiR156-directed cleavage of OsSPL3 transcripts, resulting in the mutant phenotype...
April 2, 2019: Plant Cell
https://read.qxmd.com/read/30923231/metabolome-scale-genome-wide-association-studies-reveal-chemical-diversity-and-genetic-control-of-maize-specialized-metabolites
#12
Shaoqun Zhou, Karl Kremling, Nonoy Bandillo, Annett Richter, Ying K Zhang, Kevin R Ahern, Alexander B Artyukhin, Joshua X Hui, Gordon C Younkin, Frank C Schroeder, Edward S Buckler, Georg Jander
Cultivated maize (Zea mays) retains much of the genetic diversity of its wild ancestors. Non-targeted HPLC-MS metabolomics using the Good Diversity Panel of maize inbred lines identified a bimodal distribution of foliar metabolites. Although 15% of the detected mass features were present in >90% of the inbred lines, the majority were found in <50% of the samples. Whereas leaf bases and tips were differentiated by flavonoid abundance, maize varieties (stiff-stalk, non-stiff-stalk, tropical, sweet corn, and popcorn) showed differential accumulation of benzoxazinoid metabolites...
March 28, 2019: Plant Cell
https://read.qxmd.com/read/30923230/rice-qgl3-osppkl1-functions-with-the-gsk3-shaggy-like-kinase-osgsk3-to-modulate-brassinosteroid-signaling
#13
Xiuying Gao, Jiaqi Zhang, Xiaojun Zhang, Jun Zhou, Zhisheng Jiang, Peng Huang, Zhengbin Tang, Yong-Mei Bao, Jinping Cheng, Hai-Juan Tang, Wenhua Zhang, Hong-Sheng Zhang, Ji Huang
Brassinosteroids (BRs) are steroid hormones that play essential roles in plant growth and development. We previously cloned qGL3, a major quantitative trait locus regulating grain length in rice (Oryza sativa L.). The japonica variety N411 has extra-large grains compared with the indica variety 9311, and the recessive qgl3 allele from N411 contributes positively to grain length. qGL3 encodes a putative protein phosphatase with Kelch-like repeat domains (OsPPKL1), an ortholog of Arabidopsis thaliana bri1 SUPPRESSOR1 (BSU1)...
March 28, 2019: Plant Cell
https://read.qxmd.com/read/30923229/dynamics-of-gene-expression-in-single-root-cells-of-a-thaliana
#14
Ken Jean-Baptiste, José L McFaline-Figueroa, Cristina M Alexandre, Michael W Dorrity, Lauren Saunders, Kerry L Bubb, Cole Trapnell, Stanley Fields, Christine Queitsch, Josh Cuperus
Single-cell RNA-seq can yield high-resolution cell-type-specific expression signatures that reveal new cell types and the developmental trajectories of cell lineages. Here, we apply this approach to A. thaliana root cells to capture gene expression in 3,121 root cells. We used Monocle 3, ordering single-cell transcriptomes in an unsupervised manner reconstructing single-cell developmental trajectories. We identify hundreds of genes with cell-type-specific expression, with pseudotime analysis of several cell lineages revealing both known and novel genes that are expressed along a developmental trajectory...
March 28, 2019: Plant Cell
https://read.qxmd.com/read/30914499/genetic-regulation-of-ethylene-dosage-for-cucumber-fruit-elongation
#15
Tongxu Xin, Zhen Zhang, Shuai Li, Shu Zhang, Qing Li, Zhonghua Zhang, Sanwen Huang, Xueyong Yang
Plant organ growth and development are determined by a subtle balance between growth stimulation and inhibition. Fruit size and shape are important quality traits influencing yield and market value; however, the underlying mechanism regulating the balance of fruit growth to achieve final size and shape is not well understood. Here, we report a mechanistic model that governs cucumber (Cucumis sativus L.) fruit elongation through fine-tuning of ethylene homeostasis. We identified a cucumber mutant that bears short fruits sf1 owing to repressed cell division...
March 26, 2019: Plant Cell
https://read.qxmd.com/read/30914498/glycome-and-proteome-components-of-golgi-membranes-are-common-between-two-angiosperms-with-distinct-cell-wall-structures
#16
Ikenna O Okekeogbu, Sivakumar Pattathil, Susana M González Fernández-Niño, Uma K Aryal, Bryan W Penning, Jeemeng Lao, Joshua L Heazlewood, Michael G Hahn, Maureen C McCann, Nicholas C Carpita
The plant endoplasmic reticulum (ER)-Golgi apparatus is the site of synthesis, assembly, and trafficking of all non-cellulosic polysaccharides, proteoglycans, and proteins destined for the cell wall. As grass species make cell walls distinct from dicots and non-commelinid monocots, it has been assumed that the differences in cell wall composition stem from differences in biosynthetic capacities of their respective Golgi. However, immunosorbent-based screens and carbohydrate linkage analysis of polysaccharides in Golgi membranes, enriched by flotation centrifugation from etiolated coleoptiles of maize (Zea mays) and leaves of Arabidopsis (Arabidopsis thaliana), showed that arabinogalactan-proteins and arabinans represent substantial portions of the Golgi-resident polysaccharides not typically found in high abundance in cell walls of either species...
March 26, 2019: Plant Cell
https://read.qxmd.com/read/30914497/high-temporal-resolution-transcriptome-landscape-of-early-maize-seed-development
#17
Fei Yi, Wei Gu, Jian Chen, Ning Song, Xiang Gao, Xiangbo Zhang, Yingsi Zhou, Xuxu Ma, Weibin Song, Haiming Zhao, Eddi Esteban, Asher Pasha, Nicholas J Provart, Jinsheng Lai
The early maize (Zea mays) seed undergoes several developmental stages after double fertilization to become fully differentiated within a short period of time, but the genetic control of this highly dynamic and complex developmental processes remains largely unknown. Here, we report a high-temporal-resolution investigation of transcriptomes using 31 samples collected at an interval of 4 or 6 hours within the first six days of seed development. These time-course transcriptomes were clearly separated into four distinct groups, corresponding to the stages of double fertilization, coenocyte formation, cellularization, and differentiation...
March 26, 2019: Plant Cell
https://read.qxmd.com/read/30914470/the-chromatin-associated-protein-pwo1-interacts-with-plant-nuclear-lamin-like-components-to-regulate-nuclear-size
#18
Pawel Mikulski, Mareike L Hohenstatt, Sara Farrona, Cezary Smaczniak, Yvonne Stahl, Kalyanikrishna Kalyanikrishna, Kerstin Kaufmann, Gerco C Angenent, Daniel Schubert
Spatial organization of chromatin contributes to gene regulation of many cellular processes and includes a connection of chromatin with the nuclear lamina (NL). NL is a protein mesh that resides underneath the inner nuclear membrane (INM) and consists of lamins and lamina-associated proteins. Chromatin regions associated with lamins in animals are characterized mostly by constitutive heterochromatin, but association with facultative heterochromatin mediated by Polycomb-group (PcG) proteins has been reported as well...
March 26, 2019: Plant Cell
https://read.qxmd.com/read/30914469/loss-of-function-a-strategy-for-adaptation-in-arabidopsis
#19
Céline Caseys
No abstract text is available yet for this article.
March 26, 2019: Plant Cell
https://read.qxmd.com/read/30914468/osshi1-regulates-plant-architecture-through-modulating-the-transcriptional-activity-of-ipa1-in-rice
#20
Erchao Duan, Yihua Wang, Xiaohui Li, Qibing Lin, Ting Zhang, Yupeng Wang, Chunlei Zhou, Huan Zhang, Ling Jiang, Jiulin Wang, Cailin Lei, Xin Zhang, Xiuping Guo, Haiyang Wang, Jianmin Wan
Tillering and panicle branching are important determinants of plant architecture and yield potential in rice (Oryza sativa). Ideal Plant Architecture1 (IPA1, encoding OsSPL14) acts as a key transcription factor regulating tiller outgrowth and panicle branching. Here, we report the identification of a rice mutant named shi1, which is characterized by dramatically reduced tiller number, enhanced culm strength and increased panicle branch number. Map-based cloning revealed that OsSHI1 encodes a plant-specific transcription factor of the SHORT INTERNODES (SHI) family with a characteristic family-specific IGGH domain and a conserved zinc-finger DNA binding domain...
March 25, 2019: Plant Cell
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