Anisohydric sugar beet rapidly responds to light to optimize leaf water use efficiency utilizing numerous small stomata.

ABSTRACT: Under conditions of high transpiration and low soil water availability, the demand for water can exceed supply causing a reduction in water potential and a loss of cell turgor (wilting). Regulation of stomatal aperture mediates the loss of water vapour (g _s), which in turn is dependent in part on the anatomical characteristics of stomatal density (SD) and stomatal size (SS). Anisohydric sugar beet (Beta vulgaris) is atypical, exhibiting wilting under high soil water availability. Spinach (Spinacia oleracea) belongs to the same family Chenopodiaceae s.s., but demonstrates a more typical wilting response. To investigate the role of stomatal dynamics in such behaviours, sugar beet and spinach leaves were exposed to step-changes in photosynthetic photon f

SUBMITTER: Barratt GE 

PROVIDER: S-EPMC7780706 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature