Effect of high temperature on the balance between photosynthetic light absorption and energy utilization in Chlorella pyrenoidosa (Chlorophyceae)

doi:10.1007/s00343-019-8369-5

CORC > 海洋研究所 > 中国科学院海洋研究所 > 实验海洋生物学重点实验室

	Effect of high temperature on the balance between photosynthetic light absorption and energy utilization in Chlorella pyrenoidosa (Chlorophyceae)
	Ma, Dongdong 1; Li, Yongfu 2,3; Fu, Haifang 4
刊名	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2020
卷号	38 期号:1 页码:186-194
关键词	antioxidant enzyme Calvin cycle high temperature tolerance photoprotection photosynthesis Chlorella pyrenoidosa
ISSN号	2096-5508
DOI	10.1007/s00343-019-8369-5
通讯作者	Li, Yongfu(lyf_qingdao@126.com)
英文摘要	Chlorella pyrenoidosa (Chlorophyceae) is widely cultured for production of health food and animal feed. In outdoors, mass cultivation of C. pyrenoidosa often suffers from high temperature. A better understanding of the effects of high temperature on photosynthesis and photoprotection can help optimize the productivity of C. pyrenoidosa cultures. In this study, we investigated effect of high temperature (35, 38, or 41 degrees C) on the balance between photosynthetic light absorption and energy utilization of C. pyrenoidosa. In contrast to 30 degrees C, higher temperature of 35 or 38 degrees C did not inhibit the growth of C. pyrenoidosa. Treatment in 35 degrees C maintained the balance. Moreover, the PSI acceptor side in 38 degrees C was over-reduced and PSII reaction centers were over-excited under strong light, which destroyed the balance and generated active oxygen species (AOS). However, the activated antioxidant enzymes might remove completely the over-production of AOS, thereby protect C. pyrenoidosa cells from photodamage. It shows that this C. pyrenoidosa strain could tolerate as high as 38 degrees C. Furthermore, treatment in 41 degrees C resulted in more lack of the balance than that in 38 degrees C. However, the activities of antioxidant enzymes stopped increasing in 41 degrees C, and were not strong enough to remove the excess AOS. Therefore, treatment in 41 degrees C could decrease the growth of C. pyrenoidosa. In addition, strong and longtime light exposure would cause serious photodamage to C. pyrenoidosa cells.
资助项目	Shandong Provincial Natural Science Foundation, China[ZR2017QC008]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000511866000017
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/165385]
专题	海洋研究所_实验海洋生物学重点实验室
通讯作者	Li, Yongfu
作者单位	1.Ocean Univ China, Minist Educ, Key Lab Marine Environm Sci & Ecol, Qingdao 266100, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Nantong Res & Dev Ctr Marine Sci & Technol, Nantong 226019, Peoples R China 4.Zhonglu Environm & Engn Assessment Ctr Shandong P, Jinan 250013, Peoples R China
推荐引用方式 GB/T 7714	Ma, Dongdong,Li, Yongfu,Fu, Haifang. Effect of high temperature on the balance between photosynthetic light absorption and energy utilization in Chlorella pyrenoidosa (Chlorophyceae)[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2020,38(1):186-194.
APA	Ma, Dongdong,Li, Yongfu,&Fu, Haifang.(2020).Effect of high temperature on the balance between photosynthetic light absorption and energy utilization in Chlorella pyrenoidosa (Chlorophyceae).JOURNAL OF OCEANOLOGY AND LIMNOLOGY,38(1),186-194.
MLA	Ma, Dongdong,et al."Effect of high temperature on the balance between photosynthetic light absorption and energy utilization in Chlorella pyrenoidosa (Chlorophyceae)".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 38.1(2020):186-194.