Green light signaling and adaptive response

Green light signaling and adaptive response
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绿灯信号和自适应响应

DOI:
10.4161/psb.7.1.18635
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发表时间:
2012
影响因子:
2.9
通讯作者:
K. Folta
K. Folta
中科院分区:
生物学4区
文献类型:
--
作者:
Tingting Zhang;K. Folta

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对于植物来说,太阳光不仅是光合作用的能量,它还提供了关于时间和主要条件的数据包。植物的周围环境可能会抑制或过滤太阳能,改变其光环境的光谱分布。植物利用这些信息来调整形态和生理,调整基因表达以最好地匹配环境条件。关于蓝光、红光和远红光如何促进植物适应性反应的大量文献存在。越来越多的工作确定了绿色光(500-565 nm)的离散效应,这些效应也塑造了植物生物学。已知绿色光响应通过隐花色素蓝光受体介导或不依赖于隐花色素蓝光受体。对绿色光的响应具有与蓝光或红光诱导的响应相反的一般趋势,包括茎生长速率抑制、花青素苷积累或叶绿体基因表达。最近的证据表明,绿色光在感知阴影环境中的作用,独立于远红色阴影响应。
To a plant, the sun’s light is not exclusively energy for photosynthesis, it also provides a package of data about time and prevailing conditions. The plant’s surroundings may dampen or filter solar energies, altering spectral profiles of their light environment. Plants use this information to adjust form and physiology, tailoring gene expression to best match ambient conditions. Extensive literature exists on how blue, red and far-red light contribute to plant adaptive responses. A growing body of work identifies discrete effects of green light (500–565 nm) that also shape plant biology. Green light responses are known to be either mediated through, or independent of, the cryptochrome blue light receptors. Responses to green light share a general tendency to oppose blue- or red-light-induced responses, including stem growth rate inhibition, anthocyanin accumulation or chloroplast gene expression. Recent evidence demonstrates a role for green light in sensing a shaded environment, independent from far-red shade responses.
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