Photoperiod mediates the differential physiological responses of smaller Thalassiosira pseudonana and larger Thalassiosira punctigera to temperature changes
文献类型：期刊论文
| 作者 | Xu, Ge; Liu, Jihua; Chen, Bokun; Li, Gang1,2,3 |
| 刊名 | JOURNAL OF APPLIED PHYCOLOGY
 |
| 关键词 | Photoperiod Temperature Growth Pigments Dark respiration RubisCO activity Cell size Diatoms Thalassiosira |
| ISSN号 | 0921-8971 |
| DOI | 10.1007/s10811-020-02149-6 |
| 英文摘要 | Global warming is altering both phytoplankton-experienced temperature and light-exposure duration through shifting their niches from low to high latitudes. We explored the growth, physiology, and compositions of a smaller Thalassiosira pseudonana and a larger Thalassiosira punctigera, temperate marine centric diatoms, in responses to a matrix of temperatures (12, 15, 18, and 21 degrees C) and photoperiods (light:dark cycles of 4:20, 8:16, 16:8, and 24:0). Both T. pseudonana and T. punctigera grew faster under medium temperature and longer photoperiod, under the expected optimal instantaneous light intensity. The biovolume-based pigments content of T. pseudonana responded largely to temperature, while that of T. punctigera responded more to photoperiod duration than to temperature. In T. pseudonana, shortest photoperiod enhanced cellular protein content and alleviated their temperature dependency. Continuous growth light reduced the photosynthetic capacity of T. pseudonana at the lowest temperature and reduced that of T. punctigera across temperatures. Moreover, we found the increasing temperature linearly increased the dark respiration rate (Rd) and molar ratio of carbon to nitrogen (C:N) of T. pseudonana but decreased that of T. punctigera, with the scattered effects of photoperiod. Our results demonstrated that responses of diatoms Thalassiosira across photoperiods and temperatures vary with species and possibly with cell size, suggesting that the poleward shift of the niches of phytoplankton in nature might cause a change in community structure. |
| 资助机构 | National Key Research and Development Program of China [2019YFA0606704, 2018YFA0605800, 2017YFA0604300, 2016YFA0601103]; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) [GML2019ZD0407]; National Natural Science FoundationNational Natural Science Foundation of China (NSFC) [41676156] ; National Key Research and Development Program of China [2019YFA0606704, 2018YFA0605800, 2017YFA0604300, 2016YFA0601103]; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) [GML2019ZD0407]; National Natural Science FoundationNational Natural Science Foundation of China (NSFC) [41676156] |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18420]  |
| 专题 | 南海海洋研究所_中科院海洋生物资源可持续利用重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Sci & Technol Operat Oceanog, Guangzhou 510530, Peoples R China 2.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510530, Peoples R China 3.Shandong Univ, Inst Marine Sci & Technol, 72 Binhai Rd, Qingdao 266237, Shandong, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab, 164 Xingangxi Rd, Guangzhou 510301, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Ge,Liu, Jihua,Chen, Bokun,et al. Photoperiod mediates the differential physiological responses of smaller Thalassiosira pseudonana and larger Thalassiosira punctigera to temperature changes[J]. JOURNAL OF APPLIED PHYCOLOGY. |
| APA | Xu, Ge,Liu, Jihua,Chen, Bokun,&Li, Gang. |
| MLA | Xu, Ge,et al."Photoperiod mediates the differential physiological responses of smaller Thalassiosira pseudonana and larger Thalassiosira punctigera to temperature changes".JOURNAL OF APPLIED PHYCOLOGY |
入库方式： OAI收割
来源：南海海洋研究所
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