In vivo pressure gradient heterogeneity increases flow contribution of small diameter vessels in grapevine

0521776 - BÚ 2020 RIV GB eng J - Článek v odborném periodiku
Bouda, Martin - Windt, C. W. - McElrone, A. J. - Brodersen, C. R.
In vivo pressure gradient heterogeneity increases flow contribution of small diameter vessels in grapevine.
Nature Communications. Roč. 10, DEC 10 (2019), s. 1-10, č. článku 5645. E-ISSN 2041-1723
Institucionální podpora: RVO:67985939
Klíčová slova: sap flow * xylem * heterogenity of porous media
Obor OECD: Plant sciences, botany
Impakt faktor: 12.121, rok: 2019
Způsob publikování: Open access

The heterogeneity of the angiosperm vessel network gives rise to transverse pressure gradients that redirect flow in grapevine from wide to narrow vessels, reducing the contribution of wide vessels to sap flow by 15% of the total. This result is contrary to current theory, which expects vessel flowrates to be related to vessel radius according to the Hagen-Poisseuille equation.
Trvalý link: http://hdl.handle.net/11104/0306344