Metabolite Signature during Short-Day Induced Growth Cessation in Populus.

ABSTRACT: The photoperiod is an important environmental signal for plants, and influences a wide range of physiological processes. For woody species in northern latitudes, cessation of growth is induced by short photoperiods. In many plant species, short photoperiods stop elongational growth after a few weeks. It is known that plant daylength detection is mediated by Phytochrome A (PHYA) in the woody hybrid aspen species. However, the mechanism of dormancy involving primary metabolism remains unclear. We studied changes in metabolite profiles in hybrid aspen leaves (young, middle, and mature leaves) during short-day-induced growth cessation, using a combination of gas chromatography-time-of-flight mass spectrometry, and multivariate projection methods. Our results indicate that the metabolite profil

SUBMITTER: Kusano M 

PROVIDER: S-EPMC3355535 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature