Silencing Nicotiana attenuata LHY and ZTL alters circadian rhythms in flowers
作者： Felipe Yon , Youngsung Joo , Lucas Cortés Llorca , Eva Rothe , Ian T. Baldwin
DOI: 10.1111/NPH.13681
关键词: Pedicel 、 Rhythm 、 Arabidopsis thaliana 、 Botany 、 Biology 、 Arabidopsis 、 Hypocotyl 、 Nicotiana attenuata 、 Circadian rhythm 、 Circadian clock
摘要: The rhythmic opening/closing and volatile emissions of flowers are known to attract pollinators at specific times. That these rhythms maintained under constant light or dark conditions suggests a circadian clock involvement. Although forward reverse genetic approach has led the identification core components in Arabidopsis thaliana, involvement floral remained untested, probably because weak diurnal A. thaliana flowers. Here, we addressed role wild tobacco Nicotiana attenuata, whose open night, emit benzyl acetone (BA) scents move vertically through 140° arc. We first measured N. attenuata conditions. results suggest that controls flower opening, BA emission pedicel movement, but not closing. generated transgenic lines silenced homologous genes LATE ELONGATED HYPOCOTYL (LHY) ZEITLUPE (ZTL), which be components. Silencing NaLHY NaZTL strongly altered different ways, indicating conserved coordinate rhythms.
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