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| ABA receptor PYL9 promotes drought resistance and leaf senescence | |
Zhao, Yang; Chan, Zhulong2; Gao, Jinghui; Xing, Lu4; Cao, Minjie3; Yu, Chunmei5; Hu, Yuanlei6; You, Jun2; Shi, Haitao2; Zhu, Yingfang; Gong, Yuehua7; Mu, Zixin8; Wang, Haiqing9; Deng, Xin10 ; Wang, Pengcheng; Bressan, Ray A.; Zhu, Jian-Kang
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| 2016 | |
| Source Publication | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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| ISSN | 0027-8424 |
| Volume | 113Issue:7Pages:1949-1954 |
| 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 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. |
| Keyword | drought stress abscisic acid PYL dormancy Arabidopsis |
| Subject Area | Multidisciplinary Sciences |
| DOI | 10.1073/pnas.1522840113 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | RAV1 TRANSCRIPTION FACTOR ; ABSCISIC-ACID ; GENE-EXPRESSION ; ARABIDOPSIS ; PROTEIN ; STRESS ; DORMANCY ; PATHWAYS ; FAMILY ; PLANT |
| WOS Research Area | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS ID | WOS:000370220000069 |
| Publisher | NATL ACAD SCIENCES |
| Subtype | Article |
| Publication Place | WASHINGTON |
| Funding Organization | NIHUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USA [R01GM059138] ; Chinese Academy of SciencesChinese Academy of Sciences ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370302] ; Knowledge Innovative Key Program of CAS [Y329631O0263] ; Sino-Africa Joint Research Project Grant [SAJC201324] ; NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCESUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Institute of General Medical Sciences (NIGMS) [R01GM059138] Funding Source: NIH RePORTER |
| Corresponding Author Email | jkzhu@purdue.edu |
| OA | Green Published, hybrid |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ibcas.ac.cn/handle/2S10CLM1/25273 |
| Collection | 中科院北方资源植物重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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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| Zhao-2016-ABA recept（1229KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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