Volatile communication in plants relies on a KAI2-mediated signaling pathway
成果类型：
Article
署名作者：
Stirling, Shannon A.; Guercio, Angelica M.; Patrick, Ryan M.; Huang, Xing-Qi; Bergman, Matthew E.; Dwivedi, Varun; Kortbeek, Ruy W. J.; Liu, Yi-Kai; Sun, Fuai; Tao, W. Andy; Li, Ying; Boachon, Benoit; Shabek, Nitzan; Dudareva, Natalia
署名单位：
Purdue University System; Purdue University; University of California System; University of California Davis; Purdue University System; Purdue University; Purdue University System; Purdue University; Purdue University System; Purdue University; Purdue University System; Purdue University; Purdue University System; Purdue University; Centre National de la Recherche Scientifique (CNRS); University of Missouri System; University of Missouri Columbia
刊物名称：
SCIENCE
ISSN/ISSBN：
0036-9407
DOI：
10.1126/science.adl4685
发表日期：
2024-03-22
页码：
1318-1325
关键词：
strigolactone perception
organic-compounds
seed-germination
germacrene d
karrikin
receptor
protein
acts
EVOLUTION
responses
摘要：
Plants are constantly exposed to volatile organic compounds (VOCs) that are released during plant-plant communication, within-plant self-signaling, and plant-microbe interactions. Therefore, understanding VOC perception and downstream signaling is vital for unraveling the mechanisms behind information exchange in plants, which remain largely unexplored. Using the hormone-like function of volatile terpenoids in reproductive organ development as a system with a visual marker for communication, we demonstrate that a petunia karrikin-insensitive receptor, PhKAI2ia, stereospecifically perceives the (-)-germacrene D signal, triggering a KAI2-mediated signaling cascade and affecting plant fitness. This study uncovers the role(s) of the intermediate clade of KAI2 receptors, illuminates the involvement of a KAI2ia-dependent signaling pathway in volatile communication, and provides new insights into plant olfaction and the long-standing question about the nature of potential endogenous KAI2 ligand(s).