Arabidopsis HD-Zip II proteins regulate the exit from proliferation during leaf development in canopy shade.

ABSTRACT: The shade avoidance response is mainly evident as increased plant elongation at the expense of leaf and root expansion. Despite the advances in understanding the mechanisms underlying shade-induced hypocotyl elongation, little is known about the responses to simulated shade in organs other than the hypocotyl. In Arabidopsis, there is evidence that shade rapidly and transiently reduces the frequency of cell division in young first and second leaf primordia through a non-cell-autonomous mechanism. However, the effects of canopy shade on leaf development are likely to be complex and need to be further investigated. Using combined methods of genetics, cell biology, and molecular biology, we uncovered an effect of prolonged canopy shade on leaf development. We show that persistent shade determi

SUBMITTER: Carabelli M 

PROVIDER: S-EPMC6255710 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature