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 | |
刊名 | SCIENCE CHINA-EARTH SCIENCES |
2018-10 | |
卷号 | 61期号:10页码:1397-1405 |
关键词 | Elevated pCO(2) Lag Exponential and stationary phases Photosynthetic performance Synechococcus |
ISSN号 | 1674-7313 |
DOI | 10.1007/s11430-017-9206-5 |
英文摘要 | 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. |
资助项目 | National Natural Science Foundation of China[41606092] ; National Natural Science Foundation of China[41676156] |
WOS关键词 | DIATOM PHAEODACTYLUM-TRICORNUTUM ; OCEAN ACIDIFICATION ; CO2-CONCENTRATING MECHANISM ; CONCENTRATING MECHANISMS ; MARINE CYANOBACTERIUM ; CELL COMPOSITION ; CO2 ; PHOTOSYNTHESIS ; ALGA ; TEMPERATURE |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | SCIENCE PRESS |
WOS记录号 | WOS:000446517200005 |
内容类型 | 期刊论文 |
源URL | [http://ir.fio.com.cn:8080/handle/2SI8HI0U/25455] |
专题 | 自然资源部第一海洋研究所 |
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 |
推荐引用方式 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. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论