ABA receptor PYL9 promotes drought resistance and leaf senescence
Chinese Academy of Sciences · Purdue University West Lafayette · +8 more institutions
Abstract
Drought stress is an important environmental factor limiting plant productivity. In this study, we screened drought-resistant transgenic plants from 65 promoter-pyrabactin resistance 1-like (PYL) abscisic acid (ABA) receptor gene combinations and discovered that pRD29A::PYL9 transgenic lines showed dramatically increased drought resistance and drought-induced leaf senescence in both Arabidopsis and rice. Previous studies suggested that ABA promotes senescence by causing ethylene production. However, we found that ABA promotes leaf senescence in an ethylene-independent manner by activating sucrose nonfermenting 1-related protein kinase 2s (SnRK2s), which subsequently phosphorylate ABA-responsive element-binding…
Citation impact
- FWCI
- 105.13
- Percentile
- 100%
- References
- 43
Authors
17- YZYang ZhaoCorresponding
Chinese Academy of Sciences, Purdue University West Lafayette, Shanghai Institutes for Biological Sciences
- ZCZhulong Chan
Chinese Academy of Sciences, Shanghai Institutes for Biological Sciences, Wuhan Botanical Garden
- JGJinghui Gao
Purdue University West Lafayette
- XLXing Lu
University of Science and Technology of China, Purdue University West Lafayette
- MCMin‐Jie Cao
Chinese Academy of Sciences, Shanghai Institutes for Biological Sciences
Topics & keywords
- Abscisic acid
- Senescence
- Biology
- Dormancy
- Cell biology
- Transgene
- Genetically modified crops
- Drought resistance