Roles of Gibberellin Catabolism and Signaling in Growth and Physiological Response to Drought and Short-Day Photoperiods in Populus Trees
作者： Christine Zawaski , Victor B. Busov
DOI: 10.1371/JOURNAL.PONE.0086217
关键词: Shoot 、 Transcriptome 、 Arabidopsis thaliana 、 Catabolism 、 Botany 、 Genetically modified crops 、 Dormancy 、 photoperiodism 、 Biology 、 Gibberellin
摘要: Survival and productivity of perennial plants in temperate zones are dependent on robust responses to prolonged and seasonal cycles of unfavorable conditions. Here we report whole-genome microarray, expression, physiological, and transgenic evidence in hybrid poplar (Populus tremula× Populus alba) showing that gibberellin (GA) catabolism and repressive signaling mediates shoot growth inhibition and physiological adaptation in response to drought and short-day (SD) induced bud dormancy. Both water deprivation and …
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