Resolving the central metabolism of Arabidopsis guard cells.

ABSTRACT: Photosynthesis and water use efficiency, key factors affecting plant growth, are directly controlled by microscopic and adjustable pores in the leaf-the stomata. The size of the pores is modulated by the guard cells, which rely on molecular mechanisms to sense and respond to environmental changes. It has been shown that the physiology of mesophyll and guard cells differs substantially. However, the implications of these differences to metabolism at a genome-scale level remain unclear. Here, we used constraint-based modeling to predict the differences in metabolic fluxes between the mesophyll and guard cells of Arabidopsis thaliana by exploring the space of fluxes that are most concordant to cell-type-specific transcript profiles. An independent ¹³C-labeling experiment using isol

SUBMITTER: Robaina-Estevez S 

PROVIDER: S-EPMC5559522 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature