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RNA-seq analysis reveals a key role of brassinolide-regulated pathways in NaCl-stressed cotton.
- Source :
-
Biologia Plantarum . Dec2017, Vol. 61 Issue 4, p667-674. 8p. - Publication Year :
- 2017
-
Abstract
- Brassinolide (BL) alleviates salt injury in cotton seedlings; however, little is known about the molecular mechanisms of this response. In this study, digital gene expression analysis was performed to better understand the regulatory pathways of BL in NaCl-stressed cotton ( Gossypium hirsutum L.). Compared with control plants (CK), a total of 1 162 and 7 659 differentially expressed genes (DEGs) were detected in the leaves and roots of NaCl-treated plants, respectively. Most of the DEGs in NaCl-treated plants, compared to CK, were regulated by BL. Moreover, expression patterns of DEGs in BL+NaCl treated plants were similar to those in CK plants; however, the responses of DEGs in the leaves and roots of NaCl-treated plants to BL differed. In the roots, BL-regulated DEGs were involved in protein biosynthesis, whereas in the leaves, BL promoted photosynthesis in NaCl-stressed cotton. BL treatment also significantly increased the overall biomass, chlorophyll a + b content in leaves, and the protein content in roots in NaCl-stressed cotton. The downregulation of stress-responsive genes in BL+NaCl-stressed leaves was also found. These results suggest that BL can alleviate NaCl injury in cotton plants. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00063134
- Volume :
- 61
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Biologia Plantarum
- Publication Type :
- Academic Journal
- Accession number :
- 125840605
- Full Text :
- https://doi.org/10.1007/s10535-017-0736-5