Green leaf volatile sensory calcium transduction in Arabidopsis.

ABSTRACT: Plants perceive volatile organic compounds (VOCs) released by mechanically- or herbivore-damaged neighboring plants and induce various defense responses. Such interplant communication protects plants from environmental threats. However, the spatiotemporal dynamics of VOC sensory transduction in plants remain largely unknown. Using a wide-field real-time imaging method, we visualize an increase in cytosolic Ca²⁺ concentration ([Ca²⁺]_cyt) in Arabidopsis leaves following exposure to VOCs emitted by injured plants. We identify two green leaf volatiles (GLVs), (Z)-3-hexenal (Z-3-HAL) and (E)-2-hexenal (E-2-HAL), which increase [Ca²⁺]_cyt in Arabidopsis. These volatiles trigger the expression of biotic and abiotic stress-responsive genes in a

SUBMITTER: Aratani Y 

PROVIDER: S-EPMC10582025 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature