Plasmodesmal connectivity in C₄ Gynandropsis gynandra is induced by light and dependent on photosynthesis.

ABSTRACT: In leaves of C₄ plants, the reactions of photosynthesis become restricted between two compartments. Typically, this allows accumulation of C₄ acids in mesophyll (M) cells and subsequent decarboxylation in the bundle sheath (BS). In C₄ grasses, proliferation of plasmodesmata between these cell types is thought to increase cell-to-cell connectivity to allow efficient metabolite movement. However, it is not known whether C₄ dicotyledons also show this enhanced plasmodesmal connectivity and so whether this is a general requirement for C₄ photosynthesis is not clear. How M and BS cells in C₄ leaves become highly connected is also not known. We investigated these questions using 3D- and 2D-electron microscopy on the C₄

SUBMITTER: Schreier TB 

PROVIDER: S-EPMC10952754 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature