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题名: Hydrogen sulfide mediates nicotine biosynthesis in tobacco (Nicotiana tabacum) under high temperature conditions
作者: Chen, Xiaodong1; Chen, Qian2; Zhang, Xiaoming2; Li, Ruijing3; Jia, Yujie3; Ef, AbdAllah4; Jia, Aiqun1; Hu, Liwei5; Hu, Xiangyang2, 3
刊名: PLANT PHYSIOLOGY AND BIOCHEMISTRY
关键词: H2S ; High temperature ; Nicotine ; Jasmonic acid
英文摘要: Hydrogen sulfide (H2S) acts as a signal to induce many physiological processes in plants, but its role in controlling the biosynthesis of secondary metabolites is not well established. In this study, we found that high temperature (HT) treatment induced nicotine biosynthesis in tobacco (Nicotiana tabacum) and promoted the rapid accumulation of H2S. Furthermore, HT triggered the biosynthesis of jasmonic acid (JA), a plant hormone that promotes nicotine biosynthesis. Suppression of the H2S signal using chemical inhibitors or via RNAi suppression of t-cysteine desulphydrase (L-CD) in transgenic plants, compromised JA production and nicotine biosynthesis under HT treatments, and these inhibitory effects could be reversed by applying exogenous H2S. Based on these data, we propose that H2S is an important trigger of nicotine biosynthesis in tobacco under HT conditions, and that H2S acts upstream of JA signaling by modulating the transcription of genes associated with JA biosynthesis. (C) 2016 Elsevier Masson SAS. All rights reserved.
出版日期: 2016-07-01
卷号: 104, 页码:174-179
DOI标识: 10.1016/j.plaphy.2016.02.033
语种: 英语
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/26289
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Nanjing Univ Sci & Technol, Sch Environm & Biol Engn, Nanjing 210094, Jiangsu, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Peoples R China
3.Shanghai Univ, Sch Life Sci, Shanghai Key Lab Bioenergy Crops, Shanghai, Peoples R China
4.King Saud Univ, Plant Prod Dept, Coll Food & Agr Sci, POB 2460, Riyadh 11451, Saudi Arabia
5.Zhengzhou Tobacco Res Inst CNTC, Lab Tobacco Agr, Zhengzhou 450001, Peoples R China
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