0600292 - ÚEB 2025 RIV US eng J - Journal Article
Schmidt, Vojtěch - Skokan, Roman - Depaepe, T. - Kurtović, K. - Haluška, Samuel - Vosolsobě, S. - Vaculíková, Roberta - Pil, A. - Dobrev, Petre - Motyka, Václav - Van Der Straeten, D. - Petrášek, Jan
Phytohormone profiling in an evolutionary framework.
Nature Communications. Roč. 15, č. 1 (2024), č. článku 3875. ISSN 2041-1723. E-ISSN 2041-1723
R&D Projects: GA ČR GA20-13587S
Institutional support: RVO:61389030
Keywords : abscisic-acid * klebsormidium-flaccidum * auxin metabolism * salicylic-acid * culture-medium * cytokinin * growth * origin * algae * biosynthesis
OECD category: Plant sciences, botany
Impact factor: 14.7, year: 2023 ; AIS: 5.66, rok: 2023
Method of publishing: Open access
Result website:
https://doi.org/10.1038/s41467-024-47753-zDOI: https://doi.org/10.1038/s41467-024-47753-z

The genomes of charophyte green algae, close relatives of land plants, typically do not show signs of developmental regulation by phytohormones. However, scattered reports of endogenous phytohormone production in these organisms exist. We performed a comprehensive analysis of multiple phytohormones in Viridiplantae, focusing mainly on charophytes. We show that auxin, salicylic acid, ethylene and tRNA-derived cytokinins including cis-zeatin are found ubiquitously in Viridiplantae. By contrast, land plants but not green algae contain the trans-zeatin type cytokinins as well as auxin and cytokinin conjugates. Charophytes occasionally produce jasmonates and abscisic acid, whereas the latter is detected consistently in land plants. Several phytohormones are excreted into the culture medium, including auxin by charophytes and cytokinins and salicylic acid by Viridiplantae in general. We note that the conservation of phytohormone biosynthesis and signaling pathways known from angiosperms does not match the capacity for phytohormone biosynthesis in Viridiplantae. Our phylogenetically guided analysis of established algal cultures provides an important insight into phytohormone biosynthesis and metabolism across Streptophyta.
Permanent Link: https://hdl.handle.net/11104/0357643