Altered stomatal patterning accompanies a trichome dimorphism in a natural population of Arabidopsis.

ABSTRACT: Trichomes are large epidermal cells on the surface of leaves that are thought to deter herbivores, yet the presence of trichomes can also negatively impact plant growth and reproduction. Stomatal guard cells and trichomes have shared developmental origins, and experimental manipulation of trichome formation can lead to changes in stomatal density. The influence of trichome formation upon stomatal development in natural populations of plants is currently unknown. Here, we show that a natural population of Arabidopsis halleri that includes hairy (trichome-bearing) and glabrous (no trichomes) morphs has differences in stomatal density that are associated with this trichome dimorphism. We found that glabrous morphs had significantly greater stomatal density and stomatal index than hairy

SUBMITTER: Simon NML 

PROVIDER: S-EPMC7507053 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature