Agriculture

Identification and improvement of isothiocyanate-based inhibitors on stomatal opening to act as drought tolerance-conferring agrochemicals

Y. Aihara, B. Maeda, et al.

This groundbreaking research reveals the potential of benzyl isothiocyanate (BITC) and its derivatives as stomatal-opening inhibitors, expertly conducted by Yusuke Aihara and team. Their findings suggest that multi-ITCs may enhance drought tolerance in plants, offering exciting prospects for agrochemical applications.

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Abstract

Stomatal pores regulate gas exchange in plants. This study screened a chemical library and identified benzyl isothiocyanate (BITC) as a stomatal-opening inhibitor suppressing plasma membrane H+-ATPase phosphorylation. BITC derivatives with multiple isothiocyanate groups (multi-ITCs) showed significantly stronger and longer-lasting inhibitory activity with negligible toxicity. Multi-ITC treatment inhibited plant leaf wilting, highlighting its potential as a drought tolerance-conferring agrochemical.

Publisher

Nature Communications

Published On

May 15, 2023

Authors

Yusuke Aihara, Bumpei Maeda, Kanna Goto, Koji Takahashi, Mika Nomoto, Shigeo Toh, Wenxiu Ye, Yosuke Toda, Mami Uchida, Eri Asai, Yasuomi Tada, Kenichiro Itami, Ayato Sato, Kei Murakami, Toshinori Kinoshita

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