Knowledge Management System of Northwest Institute of Plateau Biology, CAS
ABA receptor PYL9 promotes drought resistance and leaf senescence | |
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; Gong, Yuehua2,8; Mu, Zixin2,9; Wang, Haiqing2,10; Deng, Xin2,11; Wang, Pengcheng2; Bressan, Ray A.2; Zhu, Jian-Kang1,2 | |
2016-02-16 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
卷号 | 113期号:7页码:1949-1954 |
文章类型 | Article |
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. |
关键词 | Drought Stress Abscisic Acid Pyl Dormancy Arabidopsis |
WOS标题词 | Science & Technology |
DOI | 10.1073/pnas.1522840113 |
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 |
项目资助者 | NIH(R01GM059138) ; Chinese Academy of Sciences ; National Natural Science Foundation of China(31370302) ; Knowledge Innovative Key Program of CAS(Y329631O0263) ; Sino-Africa Joint Research Project Grant(SAJC201324) |
WOS研究方向 | Science & Technology - Other Topics |
WOS类目 | Multidisciplinary Sciences |
WOS记录号 | WOS:000370220000069 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://210.75.249.4/handle/363003/5775 |
专题 | 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 11.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, 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. |
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