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Differential physiological responses of the coastal cyanobacterium Synechococcus sp PCC7002 to elevated pCO(2) at lag, exponential, and stationary growth phases
Mou, Shanli1; Li, Gang1,2; Li, Hongmei1; Li, Fazhong3; Shao, Zhisheng3; Li, Jinsong3; Qu, Changfeng4; Zhang, Yongyu1
2018-10-01
发表期刊SCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
卷号61期号:10页码:1397-1405
摘要We studied the effects of expected end-of-the-century pCO(2) (1000 ppm) on the photosynthetic performance of a coastal marine cyanobacterium Synechococcus sp. PCC7002 during the lag, exponential, and stationary growth phases. Elevated pCO(2) significantly stimulated growth, and enhanced the maximum cell density during the stationary phase. Under ambient pCO(2) conditions, the lag phase lasted for 6 days, while elevated pCO(2) shortened the lag phase to two days and extended the exponential phase by four days. The elevated pCO(2) increased photosynthesis levels during the lag and exponential phases, but reduced them during the stationary phase. Moreover, the elevated pCO(2) reduced the saturated growth light (Ik) and increased the light utilization efficiency (alpha) during the exponential and stationary phases, and elevated the phycobilisome: chlorophyll a (Chl a) ratio. Furthermore, the elevated pCO(2) reduced the particulate organic carbon (POC):Chl a and particulate organic nitrogen (PON):Chl a ratios during the lag and stationary phases, but enhanced them during the exponential phase. Overall, Synechococcus showed differential physiological responses to elevated pCO(2) during different growth phases, thus providing insight into previous studies that focused on only the exponential phase, which may have biased the results relative to the effects of elevated pCO(2) in ecology or aquaculture.
关键词Elevated pCO(2) Lag Exponential and stationary phases Photosynthetic performance Synechococcus
DOI10.1007/s11430-017-9206-5
关键词[WOS]DIATOM PHAEODACTYLUM-TRICORNUTUM ; INCREASED ATMOSPHERIC CO2 ; OCEAN ACIDIFICATION ; CO2-CONCENTRATING MECHANISM ; CONCENTRATING MECHANISMS ; MARINE CYANOBACTERIUM ; CELL COMPOSITION ; PHOTOSYNTHESIS ; ALGA ; TEMPERATURE
语种英语
资助项目National Key Research and Development Program of China[2016YFA0601402] ; China SOA[GASI-03-01-02-05] ; CNOOC Zhanjiang Branch[CNOOC-KJ 125 FZDXM 00 ZJ 001-2014] ; National Natural Science Foundation of China[41606092] ; National Natural Science Foundation of China[41676156]
WOS研究方向Geology
项目资助者National Key Research and Development Program of China ; China SOA ; CNOOC Zhanjiang Branch ; National Natural Science Foundation of China
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000446517200005
出版者SCIENCE PRESS
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/11366
专题中国科学院青岛生物能源与过程研究所
通讯作者Zhang, Yongyu
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Shandong Prov Key Lab Energy Genet, Key Lab Biofuels, Qingdao 266101, Peoples R China
2.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
3.China Natl Offshore Oil Corp Ltd, Zhanjiang Branch, Zhanjiang 524000, Peoples R China
4.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Bioact Subst, Qingdao 266061, Peoples R China
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GB/T 7714
Mou, Shanli,Li, Gang,Li, Hongmei,et al. Differential physiological responses of the coastal cyanobacterium Synechococcus sp PCC7002 to elevated pCO(2) at lag, exponential, and stationary growth phases[J]. SCIENCE CHINA-EARTH SCIENCES,2018,61(10):1397-1405.
APA Mou, Shanli.,Li, Gang.,Li, Hongmei.,Li, Fazhong.,Shao, Zhisheng.,...&Zhang, Yongyu.(2018).Differential physiological responses of the coastal cyanobacterium Synechococcus sp PCC7002 to elevated pCO(2) at lag, exponential, and stationary growth phases.SCIENCE CHINA-EARTH SCIENCES,61(10),1397-1405.
MLA Mou, Shanli,et al."Differential physiological responses of the coastal cyanobacterium Synechococcus sp PCC7002 to elevated pCO(2) at lag, exponential, and stationary growth phases".SCIENCE CHINA-EARTH SCIENCES 61.10(2018):1397-1405.
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