作者
Muhammad Furqan Ashraf, Sheng Yang, Ruijie Wu, Yuzhu Wang, Ansar Hussain, Ali Noman, Muhammad Ifnan Khan, Zhiqin Liu, Ailian Qiu, Deyi Guan, Shuilin He
发表日期
2018/12/1
期刊
Plant and Cell Physiology
卷号
59
期号
12
页码范围
2608-2623
出版商
Oxford University Press
简介
The responses of pepper (Capsicum annuum) plants to inoculation with the pathogenic bacterium Ralstonia solanacearum and to high-temperature-high-humidity (HTHH) conditions were previously found to be coordinated by the transcription factors CaWRKY6 and CaWRKY40; however, the underlying molecular mechanism was unclear. Herein, we identified and functionally characterized CaHsfB2a, a nuclear-localized heat shock factor involved in pepper immunity to R. solanacearum inoculation (RSI) and tolerance to HTHH. CaHsfB2a is transcriptionally induced in pepper plants by RSI or HTHH and by exogenous application of salicylic acid (SA), methyl jasmonate (MeJA), ethylene (ETH), or abscisic acid (ABA). Virus-induced gene silencing (VIGS) of CaHsfB2a significantly impaired pepper immunity to RSI, hampered HTHH tolerance, and curtailed expression of immunity- and thermotolerance-associated …
学术搜索中的文章
MF Ashraf, S Yang, R Wu, Y Wang, A Hussain… - Plant and Cell Physiology, 2018