Continuous background light significantly increases flashing-light enhancement of photosynthesis and growth of microalgae
Continuous background light significantly increases flashing-light enhancement of photosynthesis and growth of microalgae
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DOI：
10.1016/j.biortech.2015.03.119
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发表时间：
2015-07-01
影响因子：
11.4
通讯作者：
Iluz, David
中科院分区：
文献类型：
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作者：
Abu-Ghosh, Said;Fixler, Dror;Iluz, David
在特定条件下，与连续光照相比，闪光可提高光合作用速率。在这里，我们表明，闪光灯和连续的背景光与相同的集成光子剂量作为连续或单独的闪光灯的组合，可用于显着增强光合作用，增加微藻的生长。为了验证这一假设，将绿色微藻盐藻暴露于三种不同的光机制：连续光，闪光，以及两者的同时应用。藻类生长进行了比较，在三个不同的综合光量;低，中，中高。在组合光制度下，有一个大幅度增加，在所有藻类生长参数，增强光合作用速率，在3天内。我们的策略证明了光合作用和藻类生长速率的迄今未描述的显着增加，这超出了单独闪光的增加。(C)2015爱思唯尔有限公司版权所有。
Under specific conditions, flashing light enhances the photosynthesis rate in comparison to continuous illumination. Here we show that a combination of flashing light and continuous background light with the same integrated photon dose as continuous or flashing light alone can be used to significantly enhance photosynthesis and increase microalgae growth. To test this hypothesis, the green microalga Dunaliella salina was exposed to three different light regimes: continuous light, flashing light, and concomitant application of both. Algal growth was compared under three different integrated light quantities; low, intermediate, and moderately high. Under the combined light regime, there was a substantial increase in all algal growth parameters, with an enhanced photosynthesis rate, within 3 days. Our strategy demonstrates a hitherto undescribed significant increase in photosynthesis and algal growth rates, which is beyond the increase by flashing light alone. (C) 2015 Elsevier Ltd. All rights reserved.