Effect of high temperature on the balance between photosynthetic light absorption and energy utilization in Chlorella pyrenoidosa(Chlorophyceae)
文献类型：CNKI期刊论文
| 作者 | MA Dongdong; LI Yongfu; FU Haifang |
| 发表日期 | 2020-01-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | antioxidant enzyme Calvin cycle high temperature tolerance photoprotection photosynthesis Chlorella pyrenoidosa |
| 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 suf fers from high temperature. A better understanding of the ef fects of high temperature on photosynthesis and photoprotection can help optimize the productivity of C. pyrenoidosa cultures. In this study, we investigated ef fect of high temperature(35, 38, or 41℃) on the balance between photosynthetic light absorption and energy utilization of C. pyrenoidosa. In contrast to 30℃, higher temperature of 35 or 38℃ did not inhibit the growth of C. pyrenoidosa. Treatment in 35℃ maintained the balance. Moreover, the PSI acceptor side in 38℃ 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℃. Furthermore, treatment in 41℃ resulted in more lack of the balance than that in 38℃. However, the activities of antioxidant enzymes stopped increasing in 41℃, and were not strong enough to remove the excess AOS. Therefore, treatment in 41℃ could decrease the growth of C. pyrenoidosa. In addition, strong and longtime light exposure would cause serious photodamage to C. pyrenoidosa cells. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the Shandong Provincial Natural Science Foundation,China(No.ZR2017QC008) |
| 卷 | v.38期:01页:188-196 |
| 语种 | 英文; |
| 分类号 | Q945 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/188342]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.ZhongluEnvironmentalandEngineeringAssessmentCenterofShandongProvince 2.KeyLaboratoryofMarineEnvironmentalScienceandEcology,MinistryofEducation,OceanUniversityofChina 3.NantongResearchandDevelopmentCenterofMarineScienceandTechnology,InstituteofOceanology,ChineseAcademyofSciences 4.KeyLaboratoryofExperimentalMarineBiology,InstituteofOceanology,ChineseAcademyofSciences |
| 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). 2020. |
入库方式： OAI收割
来源：海洋研究所
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