Flowering responses to light and temperature

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• 作者：Li Li ; Xu Li ; Yawen Liu ; Hongtao Liu
• 刊名：Science China Life Sciences
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：59
• 期：4
• 页码：403-408
• 全文大小：280 KB
• 刊物主题：Life Sciences, general;
• 出版者：Springer Berlin Heidelberg
• ISSN：1869-1889
• 卷排序：59

文摘

Light and temperature signals are the most important environmental cues regulating plant growth and development. Plants have evolved various strategies to prepare for, and adapt to environmental changes. Plants integrate environmental cues with endogenous signals to regulate various physiological processes, including flowering time. There are at least five distinct pathways controlling flowering in the model plant Arabidopsis thaliana: the photoperiod pathway, the vernalization/thermosensory pathway, the autonomous floral initiation, the gibberellins pathway, and the age pathway. The photoperiod and temperature/ vernalization pathways mainly perceive external signals from the environment, while the autonomous and age pathways transmit endogenous cues within plants. In many plant species, floral transition is precisely controlled by light signals (photoperiod) and temperature to optimize seed production in specific environments. The molecular mechanisms by which light and temperature control flowering responses have been revealed using forward and reverse genetic approaches. Here we focus on the recent advances in research on flowering responses to light and temperature.Keywordsfloweringlight signalingtemperaturephotoperiodvernalizationthermosensory pathway