نتایج جستجو برای: brassinosteroid br

تعداد نتایج: 41228  

2017
Huiping Bi Weijuan Fan Peng Zhang

Sweepoviruses have been identified globally and cause substantial yield losses and cultivar decline in sweet potato. This study aimed to investigate the interaction between sweepovirus and plant host by analyzing the function of the viral protein C4 of Sweet potato leaf curl virus-Jiangsu (SPLCV-JS), a sweepovirus cloned from diseased sweet potato plants in East China. Ectopic expression of the...

Journal: :New Phytologist 2021

The tight regulation of local auxin homeostasis and signalling maxima in xylem precursor cells specifies the organising activity vascular cambium consequently promotes differentiation wood formation. However, molecular mechanisms underlying are largely unknown. Here, we reveal that brassinosteroid (BR)-activated WALLS ARE THIN1 (WAT1) facilitates formation by enhancing Solanum lycopersicum. Gro...

2004
Guangxiao Yang Setsuko Komatsu

Brassinosteroid (BR) and gibberellin (GA) are two groups of plant growth regulators essential for normal plant growth and development. To gain insight into the molecular mechanism by which BR and GA regulate the growth and development of plants, especially the monocot plant rice, it is necessary to identify and analyze more genes and proteins that are regulated by them. With the availability of...

Journal: :Plant physiology 2002
Carsten Müssig Sabine Fischer Thomas Altmann

Major brassinosteroid (BR) effects such as BR-induced growth are mediated through genomic pathways because RNA synthesis inhibitors and protein synthesis inhibitors interfere with these processes. A limited number of BR-regulated genes have been identified hitherto. The majority of genes (such as BRU1, CycD3, Lin6, OPR3, and TRIP-1) were identified by comparisons of BR-treated versus control-tr...

Journal: :BMC Genomics 2021

Abstract Background Brassinosteroid (BR) signaling regulates plant growth and development in concert with other pathways. Although many genes have been identified that play a role BR signaling, the biological functional consequences of disrupting those key still require detailed investigation. Results Here we performed phenotypic transcriptomic comparisons A. thaliana lines carrying loss-of-fun...

Journal: :The Plant cell 2014
Hongning Tong Yunhua Xiao Dapu Liu Shaopei Gao Linchuan Liu Yanhai Yin Yun Jin Qian Qian Chengcai Chu

Brassinosteroid (BR) and gibberellin (GA) are two predominant hormones regulating plant cell elongation. A defect in either of these leads to reduced plant growth and dwarfism. However, their relationship remains unknown in rice (Oryza sativa). Here, we demonstrated that BR regulates cell elongation by modulating GA metabolism in rice. Under physiological conditions, BR promotes GA accumulation...

2013
Yuan Zhu Mingxing Zuo Yali Liang Mingyi Jiang Jianhua Zhang Henrik Vibe Scheller Mingpu Tan Aying Zhang

Brassinosteroid (BR)-induced antioxidant defence has been shown to enhance stress tolerance. In this study, the role of the maize 65 kDa microtubule-associated protein (MAP65), ZmMAP65-1a, in BR-induced antioxidant defence was investigated. Treatment with BR increased the expression of ZmMAP65-1a in maize (Zea mays) leaves and mesophyll protoplasts. Transient expression and RNA interference sil...

2016
Zhiming Feng Chuanyin Wu Chunming Wang Jeehee Roh Long Zhang Jun Chen Shengzhong Zhang Huan Zhang Chunyan Yang Jinlong Hu Xiaoman You Xi Liu Xiaoming Yang Xiuping Guo Xin Zhang Fuqing Wu William Terzaghi Seong-Ki Kim Ling Jiang Jianmin Wan

Grain size and leaf angle are two important traits determining grain yield in rice. However, the mechanisms regulating the two traits remain largely unknown. Here, we characterized a rice gain-of-function mutant, slender grain Dominant (slg-D), which exhibited longer and narrower grains and larger leaf angles, similar to plants with elevated brassinosteroid (BR) levels or strengthened BR signal...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Catherine Albrecht Freddy Boutrot Cécile Segonzac Benjamin Schwessinger Selena Gimenez-Ibanez Delphine Chinchilla John P Rathjen Sacco C de Vries Cyril Zipfel

Plants and animals use innate immunity as a first defense against pathogens, a costly yet necessary tradeoff between growth and immunity. In Arabidopsis, the regulatory leucine-rich repeat receptor-like kinase (LRR-RLK) BAK1 combines with the LRR-RLKs FLS2 and EFR in pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) and the LRR-RLK BRI1 in brassinosteroid (BR)-mediated growt...

Journal: :Developmental cell 2014
Josep Vilarrasa-Blasi Mary-Paz González-García David Frigola Norma Fàbregas Konstantinos G Alexiou Nuria López-Bigas Susana Rivas Alain Jauneau Jan U Lohmann Philip N Benfey Marta Ibañes Ana I Caño-Delgado

The quiescent center (QC) maintains the activity of the surrounding stem cells within the root stem cell niche, yet specific molecular players sustaining the low rate of QC cell division remain poorly understood. Here, we identified a R2R3-MYB transcription factor, BRAVO (BRASSINOSTEROIDS AT VASCULAR AND ORGANIZING CENTER), acting as a cell-specific repressor of QC divisions in the primary root...

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