Flow resistance characteristics of the stem and root from conifer (Sabina chinensis) xylem tracheid.

ABSTRACT: Xylem tracheids are the channels for water transport in conifer. Tracheid flow resistance is composed of tracheid lumen resistance and pit resistance. The single tracheid structure parameters in the stem and root of Sabina chinensis were obtained by dissociation and slicing, combined with numerical simulation to analyze the tracheid flow resistance characteristics. The results showed that the tracheid lumen resistance was determined by the tracheid width and tracheid length. The pit resistance was determined by the number of pits and single pit resistance. The single pit resistance was composed of four elements: the secondary cell wall, the border, the margo and the torus. The margo contributed a relatively large fraction of flow resistance, while the torus, the border and the secondary ce

SUBMITTER: Xu T 

PROVIDER: S-EPMC8553130 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature