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Effect of light intensity on nitrogen transformation, enzymatic activity, antioxidant system and transcriptional response of Chlorella pyrenoidosa during treating mariculture wastewater
Bioresource Technology ( IF 9.7 ) Pub Date : 2024-02-17 , DOI: 10.1016/j.biortech.2024.130465 Shuailing Lu 1 , Guangyu Chu 2 , Chang Gao 3 , Yangguo Zhao 1 , Wenzheng Chen 3 , Chunji Jin 3 , Qianzhi Wang 3 , Mengchun Gao 2
Bioresource Technology ( IF 9.7 ) Pub Date : 2024-02-17 , DOI: 10.1016/j.biortech.2024.130465 Shuailing Lu 1 , Guangyu Chu 2 , Chang Gao 3 , Yangguo Zhao 1 , Wenzheng Chen 3 , Chunji Jin 3 , Qianzhi Wang 3 , Mengchun Gao 2
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The nitrogen transformation, enzymatic activity, antioxidant ability and transcriptional response of () treating mariculture wastewater were compared under different light intensities. The microalgal growth, chlorophyll synthesis and nitrogen removal ability of increased with the light intensity from 3000 to 7000 Lux, whereas they slightly decreased under 9000 and 11,000 Lux. The nitrogen metabolism enzymatic activities displayed obvious differences under different light intensities and affected the nitrogen transformation process. The reactive oxygen species (ROS) production increased with the increase of operational time, whereas it had distinct differences under different light intensities. The changes of antioxidant enzymatic activities were positively correlated with the ROS production. The transcriptional response of was in accordance with the variation of the photosynthesis, nitrogen assimilation and antioxidant system under different light intensities. This study provides theoretical basis and technical support to select suitable light intensity for algae treating mariculture wastewater.
中文翻译：
光强对蛋白核小球藻处理海水养殖废水中氮转化、酶活性、抗氧化系统和转录反应的影响
比较不同光强下()处理海水养殖废水的氮转化、酶活性、抗氧化能力和转录反应。微藻生长、叶绿素合成和脱氮能力随着光强在3000～7000Lux范围内增加而增强，而在9000和11000Lux范围内略有下降。不同光照强度下氮代谢酶活性表现出明显差异，影响氮转化过程。活性氧（ROS）的产生随着操作时间的增加而增加，但在不同的光强度下有明显的差异。抗氧化酶活性的变化与ROS的产生呈正相关。不同光强下的转录反应与光合作用、氮同化和抗氧化系统的变化一致。本研究为藻类处理海水养殖废水选择合适的光强提供了理论依据和技术支撑。
更新日期：2024-02-17
中文翻译：
光强对蛋白核小球藻处理海水养殖废水中氮转化、酶活性、抗氧化系统和转录反应的影响
比较不同光强下()处理海水养殖废水的氮转化、酶活性、抗氧化能力和转录反应。微藻生长、叶绿素合成和脱氮能力随着光强在3000～7000Lux范围内增加而增强，而在9000和11000Lux范围内略有下降。不同光照强度下氮代谢酶活性表现出明显差异，影响氮转化过程。活性氧（ROS）的产生随着操作时间的增加而增加，但在不同的光强度下有明显的差异。抗氧化酶活性的变化与ROS的产生呈正相关。不同光强下的转录反应与光合作用、氮同化和抗氧化系统的变化一致。本研究为藻类处理海水养殖废水选择合适的光强提供了理论依据和技术支撑。
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