Hydraulic failure as a primary driver of xylem network evolution in early vascular plants

0568314 - BÚ 2023 RIV US eng J - Článek v odborném periodiku
Bouda, Martin - Huggett, B. A. - Prats, K. A. - Wason, J. W. - Wilson, J.P. - Brodersen, C. R.
Hydraulic failure as a primary driver of xylem network evolution in early vascular plants.
Science. Roč. 378, č. 6620 (2022), s. 642-646. ISSN 0036-8075. E-ISSN 1095-9203
Výzkumná infrastruktura: e-INFRA CZ - 90140
Institucionální podpora: RVO:67985939
Klíčová slova: plant evolution * xylem hydraulics * pteridophytes
Obor OECD: Plant sciences, botany
Impakt faktor: 56.9, rok: 2022
Způsob publikování: Omezený přístup
https://www.science.org/doi/10.1126/science.add2910

Incremental changes in xylem network organization that diverge from the cylindrical ancestral form lead to progressively greater drought resistance by reducing the risk of hydraulic failure. As xylem strand complexity increases, independent pathways for embolism spread become fewer and increasingly concentrated in more centrally located conduits, thus limiting the systemic spread of embolism during drought. Selection by drought may thus explain observed trajectories of xylem strand evolution in the fossil record and the diversity of extant forms.
Trvalý link: https://hdl.handle.net/11104/0339642