Oryza sativa mediator subunit OsMED25 interacts with OsBZR1 to regulate brassinosteroid signaling and plant architecture in rice

2020 ◽  
Vol 62 (6) ◽  
pp. 793-811 ◽  
Author(s):  
Yuekun Ren ◽  
Xiaojie Tian ◽  
Shuyu Li ◽  
Enyang Mei ◽  
Mingliang He ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Plant Architecture ◽  
Brassinosteroid Signaling

scholarly journals Brassinosteroid signaling integrates multiple pathways to release apical dominance in tomato

2021 ◽  
Vol 118 (11) ◽  
pp. e2004384118
Author(s):  
Xiaojian Xia ◽  
Han Dong ◽  
Yanling Yin ◽  
Xuewei Song ◽  
Xiaohua Gu ◽  
...  
Keyword(s):  
Regulatory Network ◽  
Apical Dominance ◽  
Plant Architecture ◽  
Response Regulator ◽  
Axillary Buds ◽  
Deficient Mutant ◽  
Type B ◽  
Apical Bud ◽  
Brassinosteroid Signaling ◽  
Bud Removal

The control of apical dominance involves auxin, strigolactones (SLs), cytokinins (CKs), and sugars, but the mechanistic controls of this regulatory network are not fully understood. Here, we show that brassinosteroid (BR) promotes bud outgrowth in tomato through the direct transcriptional regulation of BRANCHED1 (BRC1) by the BR signaling component BRASSINAZOLE-RESISTANT1 (BZR1). Attenuated responses to the removal of the apical bud, the inhibition of auxin, SLs or gibberellin synthesis, or treatment with CK and sucrose, were observed in bud outgrowth and the levels of BRC1 transcripts in the BR-deficient or bzr1 mutants. Furthermore, the accumulation of BR and the dephosphorylated form of BZR1 were increased by apical bud removal, inhibition of auxin, and SLs synthesis or treatment with CK and sucrose. These responses were decreased in the DELLA-deficient mutant. In addition, CK accumulation was inhibited by auxin and SLs, and decreased in the DELLA-deficient mutant, but it was increased in response to sucrose treatment. CK promoted BR synthesis in axillary buds through the action of the type-B response regulator, RR10. Our results demonstrate that BR signaling integrates multiple pathways that control shoot branching. Local BR signaling in axillary buds is therefore a potential target for shaping plant architecture.

Plant architecture and grain yield are regulated by the novel DHHC-type zinc finger protein genes in rice (Oryza sativa L.)

Plant Science ◽  
2017 ◽  
Vol 254 ◽  
pp. 12-21 ◽  
Author(s):  
Bo Zhou ◽  
Jian Zhong Lin ◽  
Dan Peng ◽  
Yuan Zhu Yang ◽  
Ming Guo ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Zinc Finger ◽  
Plant Architecture ◽  
Zinc Finger Protein ◽  
Oryza Sativa L ◽  
The Novel ◽  
Finger Protein

ZmCLA4 regulates leaf angle through multiple plant hormone-mediated signal pathways in maize

2020 ◽  
Author(s):  
Dandan Dou ◽  
Shengbo Han ◽  
Lixia Ku ◽  
Huafeng Liu ◽  
Huihui Su ◽  
...  
Keyword(s):  
Regulatory Network ◽  
Plant Architecture ◽  
Plant Hormone ◽  
Auxin Transport ◽  
Regulatory Mechanism ◽  
Affinity Purification ◽  
Leaf Angle ◽  
Signal Pathways ◽  
Brassinosteroid Signaling ◽  
Ear Motif

AbstractLeaf angle in cereals is an important agronomic trait contributing to plant architecture and grain yield by determining the plant compactness. Although ZmCLA4 was identified to shape plant architecture by affecting leaf angle, the detailed regulatory mechanism of ZmCLA4 in maize remains unclear. ZmCLA4 was identified as a transcriptional repressor using the Gal4-LexA/UAS system and transactivation analysis in yeast. The DNA affinity purification (DAP)-seq assay showed that ZmCLA4 not only acts as a repressor containing the EAR motif (CACCGGAC), but was also found to have two new motifs, CCGARGS and CDTCNTC. On analyzing the ZmCLA4-bound targeted genes, we found that ZmCLA4, as a cross node of multiple plant hormone-mediated pathways, directly bound to ARF22 and IAA26 to regulate auxin transport and mediated brassinosteroid signaling by directly binding to BZR3 and 14-3-3. ZmCLA4 bound two WRKY genes involved with abscisic acid, two genes (CYP75B1, CYP93D1) involved with jasmonic acid, B3 involved in the response to ethylene, and thereby negatively regulated leaf angle formation. We built a new regulatory network for the ZmCLA4 gene controlling leaf angle in maize, which contributed to the understanding of ZmCLA4’s regulatory mechanism and will improve grain yields by facilitating optimization of plant architecture.

scholarly journals OsmiR396d Affects Gibberellin and Brassinosteroid Signaling to Regulate Plant Architecture in Rice

2017 ◽  
Vol 176 (1) ◽  
pp. 946-959 ◽  
Author(s):  
Yongyan Tang ◽  
Huanhuan Liu ◽  
Siyi Guo ◽  
Bo Wang ◽  
Zhitao Li ◽  
...  
Keyword(s):  
Plant Architecture ◽  
Brassinosteroid Signaling

Disruption of OsARF19 is Critical for Floral Organ Development and Plant Architecture in Rice (Oryza sativa L.)

2015 ◽  
Vol 34 (4) ◽  
pp. 748-760 ◽  
Author(s):  
Shengzhong Zhang ◽  
Tao Wu ◽  
Shijia Liu ◽  
Xi Liu ◽  
Ling Jiang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Plant Architecture ◽  
Oryza Sativa L ◽  
Floral Organ ◽  
Organ Development ◽  
Floral Organ Development

scholarly journals Brassinosteroid Signaling Regulates Leaf Erectness in Oryza sativa via the Control of a Specific U-Type Cyclin and Cell Proliferation

2015 ◽  
Vol 34 (2) ◽  
pp. 220-228 ◽  
Author(s):  
Shiyong Sun ◽  
Donghong Chen ◽  
Xiaoming Li ◽  
Shenglong Qiao ◽  
Chaonan Shi ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Oryza Sativa ◽  
Brassinosteroid Signaling

Top Bending Panicle1 is involved in brassinosteroid signaling and regulates the plant architecture in rice

2017 ◽  
Vol 121 ◽  
pp. 1-13 ◽  
Author(s):  
Yun Lin ◽  
Zhigang Zhao ◽  
Shirong Zhou ◽  
Linglong Liu ◽  
Weiyi Kong ◽  
...  
Keyword(s):  
Plant Architecture ◽  
Brassinosteroid Signaling

Molecular marker dissection of rice (Oryza sativa L.) plant architecture under temperate and tropical climates

2003 ◽  
Vol 107 (8) ◽  
pp. 1350-1356 ◽  
Author(s):  
S. Kobayashi ◽  
Y. Fukuta ◽  
T. Sato ◽  
M. Osaki ◽  
G. S. Khush
Keyword(s):  
Oryza Sativa ◽  
Molecular Marker ◽  
Plant Architecture ◽  
Oryza Sativa L ◽  
Tropical Climates
Sign in / Sign up

Export Citation Format

Share Document