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学科主题: Plant Sciences
题名: Photosynthetic carbon fixation by tropical coral reef phytoplankton assemblages: a UVR perspective
作者: [Li, Gang ; Gao, Kunshan] Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Fujian, Peoples R China ; [Li, Gang] Chinese Acad Sci, Key Lab Marine Bioresources & Ecol, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China ; [Che, Zhiwei] SOA, Sanya Marine Environm Monitoring Stn, Sanya 572000, Hainan, Peoples R China
通讯作者: ksgao@xmu.edu.cn
关键词: carbon fixation ; coral reefs ; phytoplankton ; South China Sea ; UVR
刊名: ALGAE
发表日期: 2013
卷: 28, 期:3, 页:281-288
部门归属: LMB
资助者: The authors would like to thank the comments of the two anonymous reviewers that helped to improve this manuscript. This work was financially supported by the National Natural Science Foundation (Nos. 40930846, 41120164007 and 41206132), National Basic Research Program of China (No. 2009CB421207), Program for Changjiang Scholars and Innovative Research Team (No. IRT0941), China-Japan collaboration project from MOST (No. S2012GR0290), Guangdong Natural Science Foundation (No. S2011040000151) and MEL Visiting Fellowship Program (No. MELRS1006). The authors are grateful to Yaxing He, Zhongming Lu, Jinwen Liu, Yi Wang and Yan Yang for their helpful assistances and to Dr. K. G. Suresh Kumar for polishing the English in this manuscript.
摘要: Photosynthetic carbon fixation regulates air-sea CO2 fluxes in the waters of coral reefs. However, little has been documented on the effects of solar UV radiation (UVR, 280-400 nm) upon photosynthetic behaviors of phytoplankton dwelling in these ecosystems. In order to evaluate the aforesaid, surface dwelling tropical coral reef phytoplankton assemblages collected from the South China Sea were exposed to solar radiation (i.e., photosynthetically active radiation [PAR] + UV radiation A [UVA] + UV radiation B [UVB], 280-700 urn; PAR + UVA, 320-700 nm; and PAR, 400-700 nm) under static or simulated-mixing conditions. Under the static condition, UVA and UVB significantly reduced the carbon fixation with the maximum of 22.4 and 15.3%, respectively; while lower UVR-related photosynthetic inhibition was observed in case of phytoplankton samples being subjected to mixing. At a moderate level of mixing (i.e., circulation time 80 min), the UVA and UVB caused inhibition were lowered by 52.1 and 79.6%, respectively. Based on this it could be stated that vertical mixing induced by winds and/or tides in the natural environments could reduce the inhibitory effect of solar UVR on phytoplankton productivity in the coral reefs water.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000325839300005
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10987
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

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[Li, Gang; Gao, Kunshan] Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Fujian, Peoples R China; [Li, Gang] Chinese Acad Sci, Key Lab Marine Bioresources & Ecol, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Che, Zhiwei] SOA, Sanya Marine Environm Monitoring Stn, Sanya 572000, Hainan, Peoples R China.Photosynthetic carbon fixation by tropical coral reef phytoplankton assemblages: a UVR perspective,ALGAE,2013,28(3):281-288
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