@Article{IPB-232,
author = {Darwish, E. and Ghosh, R. and Bentzer, J. and Tsardakas Renhuldt, N. and Proux‐Wera, E. and Kamal, N. and Spannagl, M. and Hause, B. and Sirijovski, N. and Van Aken, O.},
title = {{The dynamics of touch‐responsive gene expression in cereals}},
year = {2023},
pages = {282-302},
journal = {Plant J.},
doi = {10.1111/tpj.16269},
url = {https://doi.org/10.1111/tpj.16269},
volume = {116},
abstract = {Wind, rain, herbivores, obstacles, neighbouring plants, etc. provide important mechanical cues to steerplant growth and survival. Mechanostimulation to stimulate yield and stress resistance of crops is of signifi-cant research interest, yet a molecular understanding of transcriptional responses to touch is largely absentin cereals. To address this, we performed whole-genome transcriptomics following mechanostimulation ofwheat, barley, and the recent genome-sequenced oat. The largest transcriptome changes occurred
25 minafter touching, with most of the genes being upregulated. While most genes returned to basal expressionlevel 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 Ca2+regulation wereaffected. In addition, cell wall-related genes involved in (hemi)cellulose, lignin, suberin, and callose biosyn-thesis were touch-responsive, providing molecular insight into mechanically induced changes in cell wallcomposition. Furthermore, several cereal-specific transcriptomic footprints were identified that were notobserved in Arabidopsis. In oat and barley, we found evidence for systemic spreading of touch-induced sig-nalling. 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 markergenes for further study of (a)biotic stress responses in cereals.}    
}