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Effect of high temperature on the balance between photosynthetic light absorption and energy utilization in Chlorella pyrenoidosa (Chlorophyceae)
Ma, Dongdong1; Li, Yongfu2,3; Fu, Haifang4
2020
Source PublicationJOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
Volume38Issue:1Pages:186-194
Corresponding AuthorLi, Yongfu(lyf_qingdao@126.com)
AbstractChlorella 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.
Keywordantioxidant enzyme Calvin cycle high temperature tolerance photoprotection photosynthesis Chlorella pyrenoidosa
DOI10.1007/s00343-019-8369-5
Indexed BySCI
Language英语
Funding ProjectShandong Provincial Natural Science Foundation, China[ZR2017QC008]
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000511866000017
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/165386
Collection实验海洋生物学重点实验室
Corresponding AuthorLi, Yongfu
Affiliation1.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
Corresponding Author AffilicationKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences;  Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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.
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