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Plant J

Title:		The dynamics of touch-responsive gene expression in cereals
Author(s):		Darwish E; Ghosh R; Bentzer J; Tsardakas Renhuldt N; Proux-Wera E; Kamal N; Spannagl M; Hause B; Sirijovski N; Van Aken O;
Address:		"Department of Biology, Lund University, Solvegatan 35, 223 62, Lund, Sweden. Plant Physiology Section, Agricultural Botany Department, Faculty of Agriculture, Cairo University, Cairo, Egypt. Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK. ScanOats Industrial Research Centre, Department of Chemistry, Division of Pure and Applied Biochemistry, Lund University, Lund, Sweden. Department of Biochemistry and Biophysics, National Bioinformatics Infrastructure Sweden, Science for Life Laboratory, Stockholm University, Box 1031, SE-17121, Solna, Sweden. PGSB - Plant Genome and Systems Biology, Helmholtz Zentrum Munchen, German Research Center for Environmental Health (GmbH), Ingolstadter Landstr. 1, 85764, Neuherberg, Germany. Leibniz Institute of Plant Biochemistry, Weinberg 3, D06120, Halle, Germany"
Journal Title:		Plant J
Year:		2023
Volume:		20230608
Issue:		1
Page Number:		282 - 302
DOI:		10.1111/tpj.16269
ISSN/ISBN:		1365-313X (Electronic) 0960-7412 (Linking)
Abstract:		"Wind, rain, herbivores, obstacles, neighbouring plants, etc. provide important mechanical cues to steer plant growth and survival. Mechanostimulation to stimulate yield and stress resistance of crops is of significant research interest, yet a molecular understanding of transcriptional responses to touch is largely absent in cereals. To address this, we performed whole-genome transcriptomics following mechanostimulation of wheat, barley, and the recent genome-sequenced oat. The largest transcriptome changes occurred +/-25 min after touching, with most of the genes being upregulated. While most genes returned to basal expression level by 1-2 h in oat, many genes retained high expression even 4 h post-treatment in barley and wheat. Functional categories such as transcription factors, kinases, phytohormones, and Ca(2+) regulation were affected. In addition, cell wall-related genes involved in (hemi)cellulose, lignin, suberin, and callose biosynthesis were touch-responsive, providing molecular insight into mechanically induced changes in cell wall composition. Furthermore, several cereal-specific transcriptomic footprints were identified that were not observed in Arabidopsis. In oat and barley, we found evidence for systemic spreading of touch-induced signalling. Finally, we provide evidence that both the jasmonic acid-dependent and the jasmonic acid-independent pathways underlie touch-signalling in cereals, providing a detailed framework and marker genes for further study of (a)biotic stress responses in cereals"
Keywords:		"Touch Edible Grain/genetics *Arabidopsis/genetics *Hordeum/genetics Triticum/genetics Transcriptome Gene Expression Regulation, Plant/genetics Arabidopsis barley cereals mechanical stimulation oat touch response wheat;"
Notes:		"MedlineDarwish, Essam Ghosh, Ritesh Bentzer, Johan Tsardakas Renhuldt, Nikos Proux-Wera, Estelle Kamal, Nadia Spannagl, Manuel Hause, Bettina Sirijovski, Nick Van Aken, Olivier eng Research Support, Non-U.S. Gov't England 2023/05/09 Plant J. 2023 Oct; 116(1):282-302. doi: 10.1111/tpj.16269. Epub 2023 Jun 8"