Involvement of OsGF14b Adaptation in the Drought Resistance of Rice Plants

Jianping Liu, Xinjiao Sun, Wencheng Liao, Jianhua ZHANG, Jiansheng Liang, Weifeng Xu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Background: Drought stress is one of the major abiotic stresses that restrict plant growth and development. 14–3-3 proteins have been validated to regulate many biological processes in plants. Previous research demonstrated that OsGF14b plays different roles in panicle and leaf blast resistance. In this study, we researched the function of OsGF14b in drought resistance in rice. Findings: Here, we report that OsGF14b was strongly induced by soil drought stress. In comparison with wild type (WT), the osgf14b mutant exhibited improved resistance to drought and osmotic stress by changing the content of stress-relevant parameters, complementation of the osgf14b mutant restored the drought sensitivity to WT levels, whereas the OsGF14b-overexpression lines exhibited enhanced sensitivity to drought and osmotic stress. The osgf14b mutant plants were hypersensitive to abscisic acid (ABA), while the OsGF14b-overexpression plants showed reduced sensitivity to ABA. Furthermore, mutation and overexpression of OsGF14b affected the expression of stress-related genes under normal growth conditions and/or drought stress conditions. Conclusions: We have demonstrated that OsGF14b is involved in the drought resistance of rice plants, partially in an ABA-dependent manner.

Original languageEnglish
Article number82
JournalRice
Volume12
Issue number1
DOIs
Publication statusPublished - 1 Dec 2019

Scopus Subject Areas

  • Agronomy and Crop Science
  • Soil Science
  • Plant Science

User-Defined Keywords

  • 14–3-3
  • ABA
  • Drought resistance
  • OsGF14b
  • Rice

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