Dynamics and Distribution of Marine Synechococcus Abundance and Genotypes during Seasonal Hypoxia in a Coastal Marine Ranch

doi:10.3390/jmse9050549

	Dynamics and Distribution of Marine Synechococcus Abundance and Genotypes during Seasonal Hypoxia in a Coastal Marine Ranch
	Li, Guihao 1,2; Song, Qinqin 3; Zheng, Pengfei 3; Zhang, Xiaoli 3; Zou, Songbao 3; Li, Yanfang 3; Gao, Xuelu 3; Zhao, Zhao 1,2; Gong, Jun 1,2,4
刊名	JOURNAL OF MARINE SCIENCE AND ENGINEERING
	2021-05-01
卷号	9 期号:5 页码:15
关键词	Synechococcus summer hypoxia abundance genotype aquaculture
DOI	10.3390/jmse9050549
通讯作者	Zhao, Zhao(zhaozhao5@mail.sysu.edu.cn)
英文摘要	Marine Synechococcus are an ecologically important picocyanobacterial group widely distributed in various oceanic environments. Little is known about the dynamics and distribution of Synechococcus abundance and genotypes during seasonal hypoxia in coastal zones. In this study, an investigation was conducted in a coastal marine ranch along two transects in Muping, Yantai, where hypoxic events (defined here as the dissolved oxygen concentration <3 mg L-1) occurred in the summer of 2015. The hypoxia occurred in the bottom waters from late July and persisted until late August. It was confined at nearshore stations of the two transects, one running across a coastal ranch and the other one outside. During this survey, cell abundance of Synechococcus was determined with flow cytometry, showing great variations ranging from 1 x 10(4) to 3.0 x 10(5) cells mL(-1), and a bloom of Synechococcus occurred when stratification disappeared and hypoxia faded out outside the ranch. Regression analysis indicated that dissolved oxygen, pH, and inorganic nutrients were the most important abiotic factors in explaining the variation in Synechococcus cell abundance. Diverse genotypes (mostly belonged to the sub-clusters 5.1 and 5.2) were detected using clone library sequencing and terminal restriction fragment length polymorphism analysis of the 16S-23S rRNA internal transcribed spacer region. The richness of genotypes was significantly related to salinity, temperature, silicate, and pH, but not dissolved oxygen. Two environmental factors, temperature and salinity, collectively explained 17% of the variation in Synechococcus genotype assemblage. With the changes in population composition in diverse genotypes, the Synechococcus assemblages survived in the coastal hypoxia event and thrived when hypoxia faded out.
WOS关键词	PHYLOGENETIC DIVERSITY ; ALLELOPATHIC ACTIVITY ; PROCHLOROCOCCUS ; LINEAGES ; BACTERIOPLANKTON ; PATTERNS ; SUMMER ; NICHE ; BLOOM ; SEA
WOS研究方向	Engineering ; Oceanography
语种	英语
WOS记录号	WOS:000662455200001
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Project of Frontier Science, CAS ; Research Fund Program of Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering ; Youth Program of National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/34766]
专题	中国科学院烟台海岸带研究所
通讯作者	Zhao, Zhao
作者单位	1.Sun Yat Sen Univ, Sch Marine Sci, Zhuhai 519082, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 4.Guangdong Prov Key Lab Marine Resources & Coastal, Guangzhou 510006, Peoples R China
推荐引用方式 GB/T 7714	Li, Guihao,Song, Qinqin,Zheng, Pengfei,et al. Dynamics and Distribution of Marine Synechococcus Abundance and Genotypes during Seasonal Hypoxia in a Coastal Marine Ranch[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2021,9(5):15.
APA	Li, Guihao.,Song, Qinqin.,Zheng, Pengfei.,Zhang, Xiaoli.,Zou, Songbao.,...&Gong, Jun.(2021).Dynamics and Distribution of Marine Synechococcus Abundance and Genotypes during Seasonal Hypoxia in a Coastal Marine Ranch.JOURNAL OF MARINE SCIENCE AND ENGINEERING,9(5),15.
MLA	Li, Guihao,et al."Dynamics and Distribution of Marine Synechococcus Abundance and Genotypes during Seasonal Hypoxia in a Coastal Marine Ranch".JOURNAL OF MARINE SCIENCE AND ENGINEERING 9.5(2021):15.