Gibberellins modulate shade-induced soybean hypocotyl elongation downstream of the mutual promotion of auxin and brassinosteroids

Copyright © 2020 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 150(2020) vom: 16. Mai, Seite 209-221
1. Verfasser: Jiang, Hengke (VerfasserIn)
Weitere Verfasser: Shui, Zhaowei, Xu, Li, Yang, Yinhua, Li, Yan, Yuan, Xiaoqin, Shang, Jing, Asghar, Muhammad Ahsan, Wu, Xiaoling, Yu, Liang, Liu, Chunyan, Yang, Wenyu, Sun, Xin, Du, Junbo
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Auxin Brassinosteroids Gibberellins Hypocotyl elongation Shade avoidance Soybean Arabidopsis Proteins Indoleacetic Acids Plant Growth Regulators
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245 1 0 |a Gibberellins modulate shade-induced soybean hypocotyl elongation downstream of the mutual promotion of auxin and brassinosteroids 
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520 |a Plants and crops are widely suffered by shade stress in the natural communities or in the agricultural fields. The three main phytohormones auxin, gibberellins (GAs) and brassinosteroids (BRs) were found essential in shade avoidance in Arabidopsis. However, their relationship have been seldom reported in plant shade avoidance control. Here, we report our investigation of the crosstalk of auxin, GAs and BRs in shade-induced hypocotyl elongation of soybean. Exogenous feeding of indol-3-acetic acid (IAA), GA3 or 24-epibrassinolide (EBL) distinctly promoted hypocotyl elongation in the white light, while the potent biosynthesis inhibitors of GA3, IAA, BRs severely diminished shade-induced hypocotyl elongation. Synergistic treatment of their biosynthesis inhibitors showed that GA3 fully, while EBL slightly, restored the hypocotyl elongation that was efficiently repressed by IAA biosynthesis inhibitor, GA3 and IAA dramatically suppressed the hypocotyl growth inhibition by BR biosynthesis inhibitor in the shade, whereas both IAA and EBL feeding cannot suppress the elongation inhibition by GA biosynthesis inhibitor. Further analyses revealed that shade remarkably upregulated expression of key genes of IAA, GA and BR biosynthesis in the soybean hypocotyls, and GA biosynthesis genes were effectively blocked by IAA, GA and BR biosynthesis inhibitors in the shade. Taken together, these results suggest that GAs modulate shade-induced hypocotyl elongation downstream of mutual promotion of auxin and BRs in soybean 
650 4 |a Journal Article 
650 4 |a Auxin 
650 4 |a Brassinosteroids 
650 4 |a Gibberellins 
650 4 |a Hypocotyl elongation 
650 4 |a Shade avoidance 
650 4 |a Soybean 
650 7 |a Arabidopsis Proteins  |2 NLM 
650 7 |a Brassinosteroids  |2 NLM 
650 7 |a Gibberellins  |2 NLM 
650 7 |a Indoleacetic Acids  |2 NLM 
650 7 |a Plant Growth Regulators  |2 NLM 
700 1 |a Shui, Zhaowei  |e verfasserin  |4 aut 
700 1 |a Xu, Li  |e verfasserin  |4 aut 
700 1 |a Yang, Yinhua  |e verfasserin  |4 aut 
700 1 |a Li, Yan  |e verfasserin  |4 aut 
700 1 |a Yuan, Xiaoqin  |e verfasserin  |4 aut 
700 1 |a Shang, Jing  |e verfasserin  |4 aut 
700 1 |a Asghar, Muhammad Ahsan  |e verfasserin  |4 aut 
700 1 |a Wu, Xiaoling  |e verfasserin  |4 aut 
700 1 |a Yu, Liang  |e verfasserin  |4 aut 
700 1 |a Liu, Chunyan  |e verfasserin  |4 aut 
700 1 |a Yang, Wenyu  |e verfasserin  |4 aut 
700 1 |a Sun, Xin  |e verfasserin  |4 aut 
700 1 |a Du, Junbo  |e verfasserin  |4 aut 
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773 1 8 |g volume:150  |g year:2020  |g day:16  |g month:05  |g pages:209-221 
856 4 0 |u http://dx.doi.org/10.1016/j.plaphy.2020.02.042  |3 Volltext 
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