Multi-omics insights into the positive role of strigolactone perception in barley drought response

0577171 - ÚEB 2024 RIV GB eng J - Journal Article
Daszkowska-Golec, A. - Mehta, D. - Uhrig, R. G. - Brąszewska, A. - Novák, Ondřej - Fontana, I. M. - Melzer, M. - Płociniczak, T. - Marzec, M.
Multi-omics insights into the positive role of strigolactone perception in barley drought response.
BMC Plant Biology. Roč. 23, č. 1 (2023), č. článku 445. ISSN 1471-2229. E-ISSN 1471-2229
Institutional support: RVO:61389030
Keywords : Abscisic acid * Barley (Hordeum vulgare) * Drought * Phytohormone * Proteome * Strigolactone * Transcriptome
OECD category: Plant sciences, botany
Impact factor: 5.3, year: 2022
Method of publishing: Open access
https://doi.org/10.1186/s12870-023-04450-1

Background: Drought is a major environmental stress that affects crop productivity worldwide. Although previous research demonstrated links between strigolactones (SLs) and drought, here we used barley (Hordeum vulgare) SL-insensitive mutant hvd14 (dwarf14) to scrutinize the SL-dependent mechanisms associated with water deficit response. Results: We have employed a combination of transcriptomics, proteomics, phytohormonomics analyses, and physiological data to unravel differences between wild-type and hvd14 plants under drought. Our research revealed that drought sensitivity of hvd14 is related to weaker induction of abscisic acid-responsive genes/proteins, lower jasmonic acid content, higher reactive oxygen species content, and lower wax biosynthetic and deposition mechanisms than wild-type plants. In addition, we identified a set of transcription factors (TFs) that are exclusively drought-induced in the wild-type barley. Conclusions: Critically, we resolved a comprehensive series of interactions between the drought-induced barley transcriptome and proteome responses, allowing us to understand the profound effects of SLs in alleviating water-limiting conditions. Several new avenues have opened for developing barley more resilient to drought through the information provided. Moreover, our study contributes to a better understanding of the complex interplay between genes, proteins, and hormones in response to drought, and underscores the importance of a multidisciplinary approach to studying plant stress response mechanisms.
Permanent Link: https://hdl.handle.net/11104/0346397