Interspecific variation in the temperature response of mesophyll conductance is related to leaf anatomy

• DOI: 10.1111/tpj.15942
• Publication Date: 2022-08-13T10:00:37Z
• Authors: Guanjun Huang; Qiangqiang Zhang; Yuhan Yang; Yu Shu; Xifeng Ren; Shaobing Peng; Yong Li
• Keywords: Stomatal Conductance

SUMMARY Although mesophyll conductance ( g m ) is known to be sensitive temperature T ), the mechanisms underlying response of are not fully understood. In particular, it has yet established whether interspecific variation in – relationships associated with anatomy and vein traits. present study, we measured short‐term eight crop species, leaf water potential Ψ five species over a range 15–35°C. The considered structural parameters surface areas cells chloroplasts facing intercellular airspaces per unit area S c cell wall thickness cw length (VLA). We detected large variations responses . activation energy for E a,gm was found positively correlated , although showed no correlation contrast, VLA slope linear model whereas marginally A two‐component subsequently used relationships, discussed. data presented here indicate that major determinant relationships.