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Molecular Plant

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https://read.qxmd.com/read/30763615/the-blue-light-receptor-cry1-interacts-with-bzr1-and-bin2-to-modulate-the-phosphorylation-and-nuclear-function-of-bzr1-in-repressing-br-signaling-in-arabidopsis
#1
Guanhua He, Jie Liu, Huixue Dong, Jiaqiang Sun
The blue light receptor cryptochrome 1 (CRY1) primarily mediates blue-light inhibition of hypocotyl elongation. However, the underlying mechanisms remain largely elusive. We report here that CRY1 inhibits hypocotyl elongation by repressing BR signaling. Genetic interaction assay reveals a negative regulatory effect of CRY1 on the function of BZR1, a core transcription factor in the BR signaling pathway. We show that CRY1 interacts with the DNA-binding domain of BZR1 to interfere with the DNA-binding ability of BZR1 and represses its transcriptional activity...
February 11, 2019: Molecular Plant
https://read.qxmd.com/read/30763614/pbs3-protects-eds1-from-proteasome-mediated-degradation-in-plant-immunity
#2
Ming Chang, Jinping Zhao, Huan Chen, Guangyong Li, Jian Chen, Min Li, Ian A Palmer, Junqi Song, James R Alfano, Fengquan Liu, Zheng Qing Fu
Plant immunity is mediated by the positive regulators PBS3 and EDS1 and the negative regulators NPR3 and NPR4. However, the relationships among these important immune regulators remain elusive. Here, we show that PBS3 interacts with EDS1 in both the cytoplasm and the nucleus and is required for EDS1 protein accumulation. NPR3 and NPR4, which function as SA receptors and adaptors of Cullin3-based E3 ligase, interact with and mediate the degradation of EDS1 via the 26S proteasome. We prove that PBS3 inhibits the poly-ubiquitination and subsequent degradation of EDS1 by reducing the association of EDS1 with the Cullin3 adaptors NPR3 and NPR4...
February 11, 2019: Molecular Plant
https://read.qxmd.com/read/30738193/a-dynamic-signaling-path-to-chromatin-level-control-of-plant-drought-response
#3
Clara Bourbousse, Fredy Barneche
No abstract text is available yet for this article.
February 6, 2019: Molecular Plant
https://read.qxmd.com/read/30716410/database-resources-in-big-data-center-submission-archive-and-integration-of-big-data-in-plant-science
#4
Shuhui Song, Zhang Zhang
No abstract text is available yet for this article.
February 1, 2019: Molecular Plant
https://read.qxmd.com/read/30710646/population-genomic-analysis-and-de-novo-assembly-reveal-the-origin-of-weedy-rice-as-an-evolutionary-game
#5
Jian Sun, Dianrong Ma, Liang Tang, Minghui Zhao, Guangchen Zhang, Wenjia Wang, Jiayu Song, Xiang Li, Zimeng Liu, Wenxing Zhang, Quan Xu, Yuncheng Zhou, Jianzhong Wu, Toshio Yamamoto, Fei Dai, Song Li, Gang Zhou, Hongkun Zheng, Zhengjin Xu, Wenfu Chen
Crop weediness, especially that of weedy rice (Oryza sativa f. spontanea), remains mysterious. Weedy rice possesses robust ecological adaptability; however, how this strain originated and gradually formed proprietary genetic features remains unclear. Here, we demonstrate that weedy rice at Asian high latitudes (WRAH) is phylogenetically well-defined and presents unselected genomic spectra in many weedy-cultivated divergence islands. We also explored some novel QTLs for weedy-specific traits and proposed that a genome block in the end of chromosome 1 contributes to rice weediness...
January 30, 2019: Molecular Plant
https://read.qxmd.com/read/30703566/a-novel-chimeric-mitochondrial-gene-confers-cytoplasmic-effects-on-seed-oil-content-in-polyploid-rapeseed-brassica-napus-l
#6
Jun Liu, Wanjun Hao, Jing Liu, Shihang Fan, Wei Zhao, Linbing Deng, Xinfa Wang, Zhiyong Hu, Wei Hua, Hanzhong Wang
Cytoplasmic effects (CE) are discovered to influence a diverse array of agronomic traits in crops, and understanding the underlying mechanisms can help accelerate breeding programs. Seed oil content (SOC) is of great agricultural, nutritional and economic importance. However, the genetic basis of CE on SOC (CE-SOC) remains enigmatic. Here we employ an optimized approach to sequence cytoplasmic (plastid and mitochondrial) genomes of allotetraploid oilseed rape (Brassica napus L.) 51218 and 56366 cultivars that bear contrasting CE-SOC...
January 28, 2019: Molecular Plant
https://read.qxmd.com/read/30703565/phytophthora-sojae-effector-psavh240-inhibits-a-host-aspartic-protease-secretion-to-promote-infection
#7
Baodian Guo, Haonan Wang, Bo Yang, Wenjing Jiang, Maofeng Jing, Haiyang Li, Yeqiang Xia, Yuanpeng Xu, Qinli Hu, Fangfang Wang, Feng Yu, Yan Wang, Wenwu Ye, Suomeng Dong, Weiman Xing, Yuanchao Wang
Plants secrete defence molecules into the extracellular space (the apoplast) to combat attacking microbes. Thus far, the mechanisms by which successful pathogens subvert plant apoplastic immunity remain poorly known. In this study, we show that PsAvh240, a membrane-localised effector of the soybean pathogen Phytophthora sojae, promote P. sojae infection in the soybean hairy roots. PsAvh240 interacts with a soybean resistant aspartic protease GmAP1 in planta and suppresses the secretion of GmAP1 to the apoplast...
January 28, 2019: Molecular Plant
https://read.qxmd.com/read/30703564/a-phytophthora-capsici-effector-targets-acd11-binding-partners-that-regulate-ros-mediated-defense-response-in-arabidopsis-thaliana
#8
Qi Li, Gan Ai, Danyu Shen, Fen Zou, Ji Wang, Tian Bai, Yanyu Chen, Shutian Li, Meixiang Zhang, Maofeng Jing, Daolong Dou
Reactive oxygen species (ROS) play a vital role in plant immune response, but the genes involved in regulation of ROS are scantily reported. Phytophthora pathogens produce a large number of effectors to promote infection, but the modes of action adopted are largely unknown. Here, we found RxLR207 could activate ROS-mediated cell death in Nicotiana benthamiana and was essential for virulence of P. capsici. Then we demonstrated that this effector targeted to BPA1 (binding partner of ACD11) and 4 members of BPLs (BPA1 Like proteins) in Arabidopsis, and the corresponding mutants resulted in enhanced ROS accumulation and cell death under biotic or abiotic stresses...
January 28, 2019: Molecular Plant
https://read.qxmd.com/read/30690174/maize-genic-male-sterility-genes-and-their-applications-in-hybrid-breeding-progress-and-perspectives
#9
REVIEW
Xiangyuan Wan, Suowei Wu, Ziwen Li, Zhenying Dong, Xueli An, Biao Ma, Youhui Tian, Jinping Li
As one of the most important crops, maize not only has been a source of the food, feed, and industrial feedstock for biofuel and bioproducts but also became as a model plant system for addressing fundamental questions in genetics. Male sterility is a very useful trait for hybrid vigor utilization and hybrid seed production. The identification and characterization of genic male-sterility (GMS) genes in maize and other plants have deepened our understanding of the molecular mechanisms controlling anther and pollen development, and enabled the development and efficient use of many biotechnology-based male-sterility (BMS) systems for crop hybrid breeding...
January 25, 2019: Molecular Plant
https://read.qxmd.com/read/30690173/the-barren-stalk2-gene-is-required-for-axillary-meristem-development-in-maize
#10
Hong Yao, Andrea Skirpan, Brian Wardell, Michaela S Matthes, Norman B Best, Tyler McCubbin, Amanda Durbak, Taylor Smith, Simon Malcomber, Paula McSteen
The diversity of plant architecture is determined by axillary meristems (AMs). AMs are produced from small groups of stem cells in the axils of leaf primordia, and generate vegetative branches and reproductive inflorescences. Previous studies identified genes critical for AM development that function in auxin biosynthesis, transport and signaling. barren stalk1 (ba1), a basic helix-loop-helix transcription factor, acts downstream of auxin to control AM formation. Here we report the cloning and characterization of barren stalk2 (ba2), a mutant which fails to produce ears, and has fewer branches and spikelets in the tassel, indicating that ba2 functions in reproductive AM development...
January 25, 2019: Molecular Plant
https://read.qxmd.com/read/30690172/evolutionary-origin-of-jaz-proteins-and-jasmonate-signaling
#11
Gregg A Howe, Yuki Yoshida
No abstract text is available yet for this article.
January 25, 2019: Molecular Plant
https://read.qxmd.com/read/30690171/contribution-of-microbial-inter-kingdom-balance-to-plant-health
#12
Chunlei Zhang, Zhaojun Ding, Yang Bai
No abstract text is available yet for this article.
January 25, 2019: Molecular Plant
https://read.qxmd.com/read/30685381/feedback-regulation-of-flc-by-flowering-locus-t-and-fd-through-a-5-flc-promoter-region
#13
LETTER
Xiao Luo, Tao Chen, Xiaolin Zeng, Dingwei He, Yuehui He
No abstract text is available yet for this article.
January 24, 2019: Molecular Plant
https://read.qxmd.com/read/30684599/zmms30-encoding-a-novel-gdsl-lipase-is-essential-for-male-fertility-and-valuable-for-hybrid-breeding-in-maize
#14
Xueli An, Zhenying Dong, Youhui Tian, Ke Xie, Suowei Wu, Taotao Zhu, Danfeng Zhang, Yan Zhou, Canfang Niu, Biao Ma, Quancan Hou, Jianxi Bao, Simiao Zhang, Ziwen Li, Yanbo Wang, Tingwei Yan, Xiaojing Sun, Yuwen Zhang, Jinping Li, Xiangyuan Wan
Genic male sterility (GMS) is very useful for hybrid vigor utilization and hybrid seed production. Although a large number of GMS genes have been identified in plants, little is known about the roles of GDSL lipase members in the anther and pollen development. Here, we report a maize GMS gene, ZmMs30, which encodes a novel type of GDSL lipase with diverged catalytic residues. Enzyme kinetics and activity assays show that ZmMs30 has lipase activity and prefers to substrates with short carbon chain. ZmMs30 is specifically expressed in maize anthers during stages 7 to 9...
January 23, 2019: Molecular Plant
https://read.qxmd.com/read/30677522/delineation-of-nitrogen-signalling-networks-computational-approaches-in-the-big-data-era
#15
Yoshiaki Ueda, Shuichi Yanagisawa
No abstract text is available yet for this article.
January 21, 2019: Molecular Plant
https://read.qxmd.com/read/30641154/endogenous-hypoxia-in-lateral-root-primordia-controls-root-architecture-by-antagonizing-auxin-signaling-in-arabidopsis
#16
Vinay Shukla, Lara Lombardi, Sergio Iacopino, Ales Pencik, Ondrej Novak, Pierdomenico Perata, Beatrice Giuntoli, Francesco Licausi
As non-photosynthesizing organs, roots are dependent on diffusion of oxygen from the external environment and, in some instances, from the shoot for their aerobic metabolism. Establishment of hypoxic niches in the developing tissues of plants has been postulated as a consequence of insufficient diffusion of oxygen to satisfy the demands throughout development. Here, we report that such niches are established at specific stages of lateral root primordia development in Arabidopsis thaliana grown under aerobic conditions...
January 11, 2019: Molecular Plant
https://read.qxmd.com/read/30641153/the-xishuangbanna-declaration-on-plant-conservation
#17
(no author information available yet)
No abstract text is available yet for this article.
January 11, 2019: Molecular Plant
https://read.qxmd.com/read/30639751/a-plant-immune-receptor-adopts-a-two-step-recognition-mechanism-to-enhance-viral-effector-perception
#18
Jia Li, Haining Huang, Min Zhu, Shen Huang, Wenhua Zhang, Savithramma P Dinesh-Kumar, Xiaorong Tao
Plant intracellular nucleotide-binding leucine-rich repeat (NLR) immune receptors play critical roles in pathogen surveillance. Most plant NLRs characterized so far were found to use single domain/sensor to recognize pathogen effectors. Here we report that Sw-5b NLR immune receptor uses two distinct domains to detect the viral movement protein NSm encoded by tospovirus. In addition to the previously reported LRR domain, we found that the N-terminal Solanaceae domain (SD) of Sw-5b also interacts with NSm and a conserved 21-amino acids region of NSm (NSm21 )...
January 10, 2019: Molecular Plant
https://read.qxmd.com/read/30639750/plant-genome-editing-database-pged-a-call-for-submission-of-information-about-genome-edited-plant-mutants
#19
Yi Zheng, Ning Zhang, Gregory B Martin, Zhangjun Fei
No abstract text is available yet for this article.
January 10, 2019: Molecular Plant
https://read.qxmd.com/read/30639749/brif-seq-bisulfite-converted-randomly-integrated-fragments-sequencing-at-single-cell-level
#20
Xiang Li, Lu Chen, Qinghua Zhang, Yonghao Sun, Qing Li, Jianbing Yan
Single cell bisulfite sequencing (scBS-seq) was developed to assess DNA methylation heterogeneity in human and mouse. However, the reads are under-represented in regions with high DNA methylation, because these regions are usually fragmented to long segments and are hardly sequenced on Illumina platform. Here, to reduce the bias of read distribution and to maximize the use of those long segments, we develop bisulfite-converted randomly integrated fragments sequencing (BRIF-seq), with high rates of read mapping and genome coverage...
January 10, 2019: Molecular Plant
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