Stomatal Development and Conductance of a Tropical Forage Legume Are Regulated by Elevated [CO₂] Under Moderate Warming.

ABSTRACT: The opening and closing of stomata are controlled by the integration of environmental and endogenous signals. Here, we show the effects of combining elevated atmospheric carbon dioxide concentration (eCO ₂; 600 μmol mol^-1) and warming (+2°C) on stomatal properties and their consequence to plant function in a Stylosanthes capitata Vogel (C₃) tropical pasture. The eCO ₂ treatment alone reduced stomatal density, stomatal index, and stomatal conductance (g_s ), resulting in reduced transpiration, increased leaf temperature, and leading to maintenance of soil moisture during the growing season. Increased CO₂ concentration inside leaves stimulated photosynthesis, starch content levels, water use efficien

SUBMITTER: Habermann E 

PROVIDER: S-EPMC6554438 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature