Leaf photosynthesis is positively correlated with xylem and phloem areas in leaf veins in rice (Oryza sativa) plants.

ABSTRACT:

Background and aims

Leaf structure is an important determinant of leaf photosynthesis; however, the impacts of leaf structural traits on gas exchange parameters are still not fully understood. In the present study, 11 rice genotypes were grown in pots to investigate the influence of leaf structural traits on leaf photosynthesis and hydraulic conductance (Kleaf).

Methods

In this study, leaf photosynthetic rate (A), stomatal conductance (gs), mesophyll conductance and Kleaf were measured. In addition, leaf structural traits including leaf thickness (LT), leaf mass per area and leaf xylem and phloem sizes were also measured to investigate their impacts on rice photosynthesis.

Key results

We found that the total area of xylem conduits per major vein (Xmajor), leaf phloem

SUBMITTER: Huang G 

PROVIDER: S-EPMC9007091 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature