Occurrence of Amoebophrya spp. infection in planktonic dinoflagellates in Changjiang (Yangtze River) Estuary, China

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	Occurrence of Amoebophrya spp. infection in planktonic dinoflagellates in Changjiang (Yangtze River) Estuary, China
	Li, Caiwen; Song, Shuqun; Liu, Yun; Chen, Tiantian
刊名	HARMFUL ALGAE
	2014-07-01
卷号	37 页码:117-124
关键词	Parasitic dinoflagellate Algal bloom Molecular diversity Parasitism Specificity
通讯作者	Li, CW (reprint author), Chinese Acad Sci, Inst Oceanol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China.
英文摘要	The parasitic dinoflagellates in the genus of Amoebophrya can infect broad ranges of planktonic dinoflagellates, and transform algal biomass into organic matter that can be recycled within the planktonic community. The ecological significance of Amoebophrya spp. during harmful algal bloom (HAB) events was gradually recognized along with revelation of its host specificity and diversity in picoplankton communities. The eutrophicated coastal waters of China are frequently affected by HABs, particularly in Changjiang (Yangtze River) estuary and the adjacent East China Sea; while, no research has been conducted to explore the ecological roles of parasitism during HAB events and the related dinoflagellate bloom dynamics. For the first time, we confirmed the presence of Amoeboptaya infections in the planktonic community of this region; six species of dinoflagellates were infected, including Ceratium tripos, Scrippsiella trochoidea, Gonyaulax sphnfera, Gymnodinium sp., Gonyaulax sp. and an Alexandrium sp. Molecular sequences retrieved from environmental water samples revealed high genetic diversity of Amoebophryidae-like organisms in the water column. Amoebopluya-infected dinoflagellates were only observed in high salinity (>20) stations suggesting that salinity may be a factor limiting the distribution of Amoebophyra infections in natural environment. Whereas, no evidence of Amoebophiya infection was observed in the bloom-forming species Karenia mikimotoi, suggesting that K. mikimotoi in this region was likely free of Amoebophridae infection. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	Marine & Freshwater Biology
收录类别	SCI
语种	英语
WOS记录号	WOS:000340322900015
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/24031]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	Chinese Acad Sci, Inst Oceanol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Li, Caiwen,Song, Shuqun,Liu, Yun,et al. Occurrence of Amoebophrya spp. infection in planktonic dinoflagellates in Changjiang (Yangtze River) Estuary, China[J]. HARMFUL ALGAE,2014,37:117-124.
APA	Li, Caiwen,Song, Shuqun,Liu, Yun,&Chen, Tiantian.(2014).Occurrence of Amoebophrya spp. infection in planktonic dinoflagellates in Changjiang (Yangtze River) Estuary, China.HARMFUL ALGAE,37,117-124.
MLA	Li, Caiwen,et al."Occurrence of Amoebophrya spp. infection in planktonic dinoflagellates in Changjiang (Yangtze River) Estuary, China".HARMFUL ALGAE 37(2014):117-124.