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RD26 mediates crosstalk between drought and brassinosteroid signalling pathways.

Publication ,  Journal Article
Ye, H; Liu, S; Tang, B; Chen, J; Xie, Z; Nolan, TM; Jiang, H; Guo, H; Lin, H-Y; Li, L; Wang, Y; Tong, H; Zhang, M; Chu, C; Li, Z; Aluru, M ...
Published in: Nature communications
February 2017
Published version (DOI)

Brassinosteroids (BRs) regulate plant growth and stress responses via the BES1/BZR1 family of transcription factors, which regulate the expression of thousands of downstream genes. BRs are involved in the response to drought, however the mechanistic understanding of interactions between BR signalling and drought response remains to be established. Here we show that transcription factor RD26 mediates crosstalk between drought and BR signalling. When overexpressed, BES1 target gene RD26 can inhibit BR-regulated growth. Global gene expression studies suggest that RD26 can act antagonistically to BR to regulate the expression of a subset of BES1-regulated genes, thereby inhibiting BR function. We show that RD26 can interact with BES1 protein and antagonize BES1 transcriptional activity on BR-regulated genes and that BR signalling can also repress expression of RD26 and its homologues and inhibit drought responses. Our results thus reveal a mechanism coordinating plant growth and drought tolerance.

Duke Scholars

Trevor Nolan
Author Trevor Nolan  
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Published In

Nature communications

DOI

10.1038/ncomms14573

EISSN

2041-1723

ISSN

2041-1723

Publication Date

February 2017

Volume

8

Start / End Page

14573

Related Subject Headings

  • Transcription Factors
  • Signal Transduction
  • Plants, Genetically Modified
  • Plant Growth Regulators
  • Phosphorylation
  • Nuclear Proteins
  • Loss of Function Mutation
  • Gene Expression Regulation, Plant
  • Droughts
  • DNA-Binding Proteins
 

Citation

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Ye, H., Liu, S., Tang, B., Chen, J., Xie, Z., Nolan, T. M., … Yin, Y. (2017). RD26 mediates crosstalk between drought and brassinosteroid signalling pathways. Nature Communications, 8, 14573. https://doi.org/10.1038/ncomms14573
Ye, Huaxun, Sanzhen Liu, Buyun Tang, Jiani Chen, Zhouli Xie, Trevor M. Nolan, Hao Jiang, et al. “RD26 mediates crosstalk between drought and brassinosteroid signalling pathways.” Nature Communications 8 (February 2017): 14573. https://doi.org/10.1038/ncomms14573.
Ye H, Liu S, Tang B, Chen J, Xie Z, Nolan TM, et al. RD26 mediates crosstalk between drought and brassinosteroid signalling pathways. Nature communications. 2017 Feb;8:14573.
Ye, Huaxun, et al. “RD26 mediates crosstalk between drought and brassinosteroid signalling pathways.” Nature Communications, vol. 8, Feb. 2017, p. 14573. Epmc, doi:10.1038/ncomms14573.
Ye H, Liu S, Tang B, Chen J, Xie Z, Nolan TM, Jiang H, Guo H, Lin H-Y, Li L, Wang Y, Tong H, Zhang M, Chu C, Li Z, Aluru M, Aluru S, Schnable PS, Yin Y. RD26 mediates crosstalk between drought and brassinosteroid signalling pathways. Nature communications. 2017 Feb;8:14573.

Published In

Nature communications

DOI

10.1038/ncomms14573

EISSN

2041-1723

ISSN

2041-1723

Publication Date

February 2017

Volume

8

Start / End Page

14573

Related Subject Headings

  • Transcription Factors
  • Signal Transduction
  • Plants, Genetically Modified
  • Plant Growth Regulators
  • Phosphorylation
  • Nuclear Proteins
  • Loss of Function Mutation
  • Gene Expression Regulation, Plant
  • Droughts
  • DNA-Binding Proteins