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ABA receptor PYL9 promotes drought resistance and leaf senescence
文献类型：期刊论文
| 作者 | Zhao, Yang1,2; Chan, Zhulong1,3; Gao, Jinghui2; Xing, Lu2,5; Cao, Minjie1,4; Yu, Chunmei2,6; Hu, Yuanlei2,7; You, Jun3; Shi, Haitao3; Zhu, Yingfang2 |
| 刊名 | proceedings of the national academy of sciences of the united states of america
 |
| 出版日期 | 2016-02-16 |
| 卷号 | 113期号:7页码:1949-1954 |
| 关键词 | drought stress abscisic acid PYL dormancy Arabidopsis |
| 英文摘要 | 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 factors (abfs) and related to aba-insensitive 3/vp1 (rav1) transcription factors. the phosphorylated abfs and rav1 up-regulate the expression of senescence-associated genes, partly by up-regulating the expression of oresara 1. the pyl9 and aba-insensitive 1-1 single mutants, pyl8-1pyl9 double mutant, and snrk2.2/3/6 triple mutant showed reduced aba-induced leaf senescence relative to the wt, whereas prd29a::pyl9 transgenic plants showed enhanced aba-induced leaf senescence. we found that leaf senescence may benefit drought resistance by helping to generate an osmotic potential gradient, which is increased in prd29a::pyl9 transgenic plants and causes water to preferentially flow to developing tissues. our results uncover the molecular mechanism of aba-induced leaf senescence and suggest an important role of pyl9 and leaf senescence in promoting resistance to extreme drought stress. |
| WOS标题词 | science & technology |
| 类目[WOS] | multidisciplinary sciences |
| 研究领域[WOS] | science & technology - other topics |
| 关键词[WOS] | rav1 transcription factor ; abscisic-acid ; gene-expression ; arabidopsis ; protein ; stress ; dormancy ; pathways ; family ; plant |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000370220000069 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/5775]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Biol Sci, Shanghai Ctr Plant Stress Biol, Shanghai 200032, Peoples R China 2.Purdue Univ, Dept Hort & Landscape Architecture, W Lafayette, IN 47907 USA 3.Chinese Acad Sci, Sino Africa Joint Res Ctr, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan 430074, Peoples R China 4.Northwest A&F Univ, Coll Anim Sci & Technol, Yangling 712100, Shaanxi, Peoples R China 5.Univ Sci & Technol China, Sch Life Sci, Hefei 230026, Peoples R China 6.Nantong Univ, Coll Life Sci, Nantong 226019, Jiangsu, Peoples R China 7.Peking Univ, Coll Life Sci, Beijing 100871, Peoples R China 8.Yibin Univ, Coll Life Sci & Food Engn, Chengdu 644000, Sichuan, Peoples R China 9.Northwest A&F Univ, Coll Life Sci, Yangling 712100, Shaanxi, Peoples R China 10.Chinese Acad Sci, Northwest Plateau Inst Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Yang,Chan, Zhulong,Gao, Jinghui,et al. ABA receptor PYL9 promotes drought resistance and leaf senescence[J]. proceedings of the national academy of sciences of the united states of america,2016,113(7):1949-1954. |
| APA | Zhao, Yang.,Chan, Zhulong.,Gao, Jinghui.,Xing, Lu.,Cao, Minjie.,...&Zhu, Jian-Kang.(2016).ABA receptor PYL9 promotes drought resistance and leaf senescence.proceedings of the national academy of sciences of the united states of america,113(7),1949-1954. |
| MLA | Zhao, Yang,et al."ABA receptor PYL9 promotes drought resistance and leaf senescence".proceedings of the national academy of sciences of the united states of america 113.7(2016):1949-1954. |
入库方式： OAI收割
来源：西北高原生物研究所
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