摘要
复杂多变的自然环境使植物进化出许多适应策略,其中由局部胁迫引起的系统响应广泛存在,精细调节植物的生长发育和环境适应能力。植物系统响应的诱导因素首先引起植物从局部到全株范围的信号转导,这类信号称为系统信号。当受到外界刺激时,植物首先在受刺激细胞内触发化学信号分子的变化,如茉莉酸和水杨酸甲酯等在浓度和信号强度方面发生变化;进而,伴随着一系列复杂的信号转换,多种信号组分共同完成系统响应的激活。植物激素、小分子肽和RNA等被认为是缓慢系统信号通路中的关键组分,而目前也有大量研究阐释了由活性氧、钙信号和电信号相互偶联组成的快速系统信号通路。植物系统信号对其生存和繁衍至关重要,其精确的转导机制仍值得深入研究。该文综述了植物响应环境的系统信号转导研究进展,对关键的系统信号组分及其转导机制进行了总结,同时对植物系统信号传递的研究方向进行了展望。
Plants have evolved numerous strategies to adapt to complex and changing surroundings. Plants have a wide range of systemic responses induced by local stresses to precisely regulate plant growth, development and adaptability to environments. Plant systemic responses induce whole-plant signaling transmission at first, called systemic signaling. When subjected to local stresses, plants trigger chemical molecules in local cells, such as biosynthesis and/or signaling transduction of the phytohormones jasmonic acid and methyl salicylate. Accompanied by a series of complex signal cascades, multiple signal components work together to activate the systemic response. In the past several years, pioneer studies demonstrated that phytohormones, small peptides and several types of RNAs are considered key components of slow-moving systemic signaling, and rapid systemic signals include reactive oxygen species, calcium signals and electrical signals. Plant systemic signaling is essential for plant growth, development and adaptation to the environment, and the precise transmission mechanism is worthy of further investigation. In this review, we describe the research progress in plant systemic signaling transmission and response to the environment and summarize several key systemic signal components and their transmission mechanism. Finally, the potential challenges of future research in this research field are discussed.
作者
代宇佳
罗晓峰
周文冠
陈锋
帅海威
杨文钰
舒凯
Yujia Dai;Xiaofeng Luo;Wenguan Zhou;Feng Chen;Haiwei Shuai;Wenyu Yang;Kai Shu(Key Laboratory of Crop Ecophysiology and Farming System in Southwest China,Ministry of Agriculture,Institute of Ecological Agriculture,College of Agronomy,Sichuan Agricultural University,Chengdu 611130,China;Center for Ecological and Environmental Sciences,Northwestern Polytechnical University,Xi’an 710129,China)
出处
《植物学报》
CAS
CSCD
北大核心
2019年第2期255-264,共10页
Chinese Bulletin of Botany
基金
国家自然科学基金(No.31701064
No.31872804)
国家重点基础研究发展计划(No.2017YFD0201306)
四川省科技厅项目(No.2018JZ0060)
四川省教育厅基金(No.16ZB0040)
关键词
系统信号
茉莉酸
水杨酸
RNA
活性氧
systemic signaling
jasmonic acid
salicylic acid
RNA
reactive oxygen species
