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生态学杂志 ›› 2024, Vol. 43 ›› Issue (5): 1341-1347.doi: 10.13292/j.1000-4890.202405.008

• 研究报告 • 上一篇    下一篇

光质对铜绿微囊藻细胞大小及生理活性的影响

朱飞霞1,2,夏亦雪2,张春梅2,邓睿3,毕永红2*


  

  1. (1大连海洋大学水产与生命学院, 辽宁大连 116023; 2中国科学院水生生物研究所, 淡水生态与生物技术国家重点试验室, 武汉 430072; 3新疆师范大学生命科学学院, 乌鲁木齐 830054)

  • 出版日期:2024-05-10 发布日期:2024-07-10

Effect of light quality on cell size and physiological activity of Microcystis aeruginosa.

ZHU Feixia1,2, XIA Yixue2, ZHANG Chunmei2, DENG Rui3, BI Yonghong2*#br#

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  1. (1College of Aquatic and Life Sciences, Dalian Ocean University, Dalian 116023, Liaoning, China; 2State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Aquatic Biology, Chinese Academy of Sciences, Wuhan 430072, China; 3College of Life Sciences, Xinjiang Normal University, Urumqi 830054, China).

  • Online:2024-05-10 Published:2024-07-10

摘要: 为探究光质对藻细胞大小及其生理活性的影响,以白色荧光灯为对照,将铜绿微囊藻置于LED红光、LED绿光、LED蓝光、LED白光下进行30次传代培养。结果表明:与对照组相比,LED蓝光和LED绿光培养的藻细胞粒径显著变大(P<0.05),>3 μm的细胞比例分别提高16.6倍和7.4倍;LED白光与对照组的细胞粒径没有显著差异(P>0.05),LED红光的细胞粒径显著减小(P<0.05);细胞粒径变化与生长速率、光合活性和细胞组分含量的变化趋势一致;LED蓝光生长速率最大,光合活性最高,各细胞组分的含量最高,其次为LED绿光>LED白光>对照组>LED红光;生长速率、光合活性、各细胞组分含量与细胞粒径呈显著正相关(P<0.05)。本研究确认光质对细胞大小及其生理代谢活性的影响,对深入认识光质调控藻类生理活性的机制具有参考价值。


关键词: 铜绿微囊藻, 光质, 细胞大小, 生理活性

Abstract: We investigated the effects of light quality on cell size and physiological activity of algae Microcystis aeruginosa cultured under LED red light, LED green light, LED blue light, and LED white light for 30 culture generations, with white fluorescent light as the control. The results showed that algal cell size cultured under LED blue light and LED green light became significantly larger (P<0.05), and the proportion of cells larger than 3 μm increased by 16.6 and 7.4 times than that under control, respectively. Cell size under LED white light treatment was not significantly different from that of the control (P>0.05), and that under LED red light significantly decreased (P<0.05). The specific growth rate, photosynthetic activity, the content of each cellular component under LED blue light was the highest, followed by LED green light > LED white light > control light > LED red light. Cell size was significantly positively correlated with growth rate, photosynthetic activity, and content of each cell component (P< 0.05). Our results confirmed the effects of light quality on cell size and physiological activities, which was important for the in-depth understanding of the regulatory mechanism of light quality on algae.


Key words: Microcystis aeruginosa, light quality, cell size, physiological activity