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首页> 外文期刊>Philosophical Transactions of the Royal Society of London, Series B. Biological Sciences >Red and blue light differentially impact retrograde signalling and photoprotection in rice
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Red and blue light differentially impact retrograde signalling and photoprotection in rice

机译：红色和蓝色光线差异地影响retrograde信号和米饭中的光或光保护

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摘要

Chloroplast-to-nucleus retrograde signalling (RS) is known to impact plant growth and development. In Arabidopsis, we and others have shown that RS affects seedling establishment by inhibiting deetiolation. In the presence of lincomycin, a chloroplast protein synthesis inhibitor that triggers RS, Arabidopsis light-grown seedlings display partial skotomorphogenesis with undeveloped plastids and closed cotyledons. By contrast, RS in monocotyledonous has been much less studied. Here, we show that emerging rice seedlings exposed to lincomycin do not accumulate chlorophyll but otherwise remain remarkably unaffected. However, by using high red (R) and blue (B) monochromatic lights in combination with lincomycin, we have uncovered a RS inhibition of length and a reduction in the B light-induced declination of the second leaf. Furthermore, we present data showing that seedlings grown in high B and R light display different non-photochemical quenching capacity. Our findings support the view that excess B and R light impact seedling photomorphogenesis differently to photoprotect and optimize the response to high-light stress.
机译：已知叶绿体 - 核心逆行信号（RS）影响植物生长和发育。在拟南芥中，我们和其他人表明RS通过抑制脱脂溶解来影响苗木建立。在林霉素存在下，捕获Rs的叶绿体蛋白合成抑制剂，拟南芥较轻的幼苗显示出与未开发的体积和封闭的子叶的部分胰蛋白酶体。相比之下，单圈的卢比已经少得多。在这里，我们表明，暴露于林霉素的新兴水稻幼苗不会积累叶绿素，但否则仍然不受影响。然而，通过使用高红（R）和蓝色（B）单色光与Lincomcin结合使用，我们已经发现了RS抑制的长度和降低了第二叶的光诱导的偏差。此外，我们展示了数据显示在高B和R光中生长的幼苗显示不同的非光化学淬火能力。我们的研究结果支持多余的B和R光影响幼苗光膀胱的视图，以不同地光保护，并优化对高强应力的响应。

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