Warm temperature triggers JOX and ST2A-mediated jasmonate catabolism to promote plant growth

Tingting Zhu, Cornelia Herrfurth, Mingming Xin, Tatyana Savchenko, Ivo Feussner, Alain Goossens and Ive De Smet ()
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Tingting Zhu: Ghent University
Cornelia Herrfurth: Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen
Mingming Xin: State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University
Tatyana Savchenko: Institute of Basic Biological Problems, Pushchino Scientific Center for Biological Research RAS
Ivo Feussner: Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen
Alain Goossens: Ghent University
Ive De Smet: Ghent University

Nature Communications, 2021, vol. 12, issue 1, 1-8

Abstract: Abstract Plants respond to warm temperature by increased elongation growth of organs to enhance cooling capacity. Phytohormones, such as auxin and brassinosteroids, regulate this growth process. However, our view on the players involved in warm temperature-mediated growth remains fragmentary. Here, we show that warm temperature leads to an increased expression of JOXs and ST2A, genes controlling jasmonate catabolism. This leads to an elevated 12HSO4-JA level and consequently to a reduced level of bioactive jasmonates. Ultimately this results in more JAZ proteins, which facilitates plant growth under warm temperature conditions. Taken together, understanding the conserved role of jasmonate signalling during thermomorphogenesis contributes to ensuring food security under a changing climate.

Date: 2021
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DOI: 10.1038/s41467-021-24883-2

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