Mechanosensory trichome cells evoke a mechanical stimuli-induced immune response in Arabidopsis thaliana.

Autor: Matsumura M; Division of Biological Science, Graduate School of Science, Nagoya University, Aichi, Japan., Nomoto M; Division of Biological Science, Graduate School of Science, Nagoya University, Aichi, Japan. nomoto@gene.nagoya-u.ac.jp.; Center for Gene Research, Nagoya University, Aichi, Japan. nomoto@gene.nagoya-u.ac.jp., Itaya T; Division of Biological Science, Graduate School of Science, Nagoya University, Aichi, Japan.; Center for Gene Research, Nagoya University, Aichi, Japan., Aratani Y; Department of Biochemistry and Molecular Biology, Saitama University, Saitama, Japan., Iwamoto M; Graduate School of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan., Matsuura T; Institute of Plant Science and Resources (IPSR), Okayama University, Okayama, Japan., Hayashi Y; Division of Biological Science, Graduate School of Science, Nagoya University, Aichi, Japan., Mori T; Division of Biological Science, Graduate School of Science, Nagoya University, Aichi, Japan., Skelly MJ; Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK., Yamamoto YY; Faculty of Applied Biological Sciences, Gifu University, Gifu, Japan., Kinoshita T; Division of Biological Science, Graduate School of Science, Nagoya University, Aichi, Japan.; Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Aichi, Japan., Mori IC; Institute of Plant Science and Resources (IPSR), Okayama University, Okayama, Japan., Suzuki T; Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, Aichi, Japan., Betsuyaku S; Graduate School of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan.; Faculty of Life and Environmental Sciences, Microbiology Research Center for Sustainability, University of Tsukuba, Ibaraki, Japan., Spoel SH; Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK., Toyota M; Department of Biochemistry and Molecular Biology, Saitama University, Saitama, Japan., Tada Y; Division of Biological Science, Graduate School of Science, Nagoya University, Aichi, Japan. ytada@gene.nagoya-u.ac.jp.; Center for Gene Research, Nagoya University, Aichi, Japan. ytada@gene.nagoya-u.ac.jp.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2022 Mar 08; Vol. 13 (1), pp. 1216. Date of Electronic Publication: 2022 Mar 08.
DOI: 10.1038/s41467-022-28813-8
Abstrakt: Perception of pathogen-derived ligands by corresponding host receptors is a pivotal strategy in eukaryotic innate immunity. In plants, this is complemented by circadian anticipation of infection timing, promoting basal resistance even in the absence of pathogen threat. Here, we report that trichomes, hair-like structures on the epidermis, directly sense external mechanical forces, including raindrops, to anticipate pathogen infections in Arabidopsis thaliana. Exposure of leaf surfaces to mechanical stimuli initiates the concentric propagation of intercellular calcium waves away from trichomes to induce defence-related genes. Propagating calcium waves enable effective immunity against pathogenic microbes through the CALMODULIN-BINDING TRANSCRIPTION ACTIVATOR 3 (CAMTA3) and mitogen-activated protein kinases. We propose an early layer of plant immunity in which trichomes function as mechanosensory cells that detect potential risks.
(© 2022. The Author(s).)
Databáze: MEDLINE
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