Silencing Nicotiana attenuata LHY and ZTL alters circadian rhythms in flowers.

ABSTRACT: The rhythmic opening/closing and volatile emissions of flowers are known to attract pollinators at specific times. That these rhythms are maintained under constant light or dark conditions suggests a circadian clock involvement. Although a forward and reverse genetic approach has led to the identification of core circadian clock components in Arabidopsis thaliana, the involvement of these clock components in floral rhythms has remained untested, probably because of the weak diurnal rhythms in A. thaliana flowers. Here, we addressed the role of these core clock components in the flowers of the wild tobacco Nicotiana attenuata, whose flowers open at night, emit benzyl acetone (BA) scents and move vertically through a 140° arc. We first measured N. attenuata floral rhythms under constant ligh

SUBMITTER: Yon F 

PROVIDER: S-EPMC5147715 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature