Strigolactones Stimulate High Light Stress Adaptation by Modulating Photosynthesis Rate in Arabidopsis

0574823 - ÚVGZ 2024 RIV DE eng J - Journal Article
Thula, S. - Moturu, T. R. - Salava, H. - Balakhonova, V. - Berka, M. - Kerchev, P. - Mishra, Kumud - Nodzynski, T. - Simon, S.
Strigolactones Stimulate High Light Stress Adaptation by Modulating Photosynthesis Rate in Arabidopsis.
Journal of Plant Growth Regulation. Roč. 42, č. 8 (2023), s. 4818-4833. ISSN 0721-7595. E-ISSN 1435-8107
R&D Projects: GA MŠMT(CZ) EF16_019/0000797
Research Infrastructure: CzeCOS IV - 90248
Institutional support: RVO:86652079
Keywords : Strigolactone * d14 * High light stress * Photosynthesis * Transcriptome * Abiotic stress
OECD category: Plant sciences, botany
Impact factor: 4.8, year: 2022
Method of publishing: Open access
https://link.springer.com/article/10.1007/s00344-022-10764-5

Strigolactones (SLs), a class of carotenoid-derived phytohormones, were originally discovered as rhizosphere signaling molecules. They stimulate parasitic plant seed germination and can establish a symbiotic relationship between plants and beneficial microbes. In addition to their plant developmental role, evidence for their role in various stress responses such as salt and drought stresses was reported recently. In the present study, we tried to understand the unique metabolic pathways that were regulated by SLs in comparison with other plant hormones. We identified that SLs were predominantly modulating photosynthetic pathways in comparison with other plant hormones. Further, we observed that SLs positively influence high light tolerance, and this process is dependent on SL-mediated photosynthesis rate regulation. In addition, the dynamic changes of the metabolites involved in glycolysis and tricarboxylic acid (TCA) cycle upon external application of SL analogue suggest the stress adaptation landscape of plants. Our study presents the dynamic and specific effect of SLs in high light-driven stress adaptation through photosynthesis in plants.
Permanent Link: https://hdl.handle.net/11104/0344877