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Characterization of the Parasitic Dinoflagellate Amoebophrya sp Infecting Akashiwo sanguinea in Coastal Waters of China
Chen, Tiantian1; Liu, Yun1; Song, Shuqun1; Li, Caiwen1,2
2018-08-01
Source PublicationJOURNAL OF EUKARYOTIC MICROBIOLOGY
ISSN1066-5234
Volume65Issue:4Pages:448-457
SubtypeArticle
AbstractThe endoparasitic dinoflagellate Amoebophrya infects a number of free-living marine dinoflagellates, including harmful algal bloom species. The parasitoid eventually kills its host and has been proposed to be a significant loss factor for dinoflagellate blooms in restricted coastal waters. For several decades, the difficulties of culturing host-parasitoid systems have been a great obstacle for further research on the biology of Amoebophrya. Here, we established an Akashiwo sanguinea-Amoebophrya sp. coculture from Chinese coastal waters and studied the parasitoid's generation time, dinospore survival and infectivity, as well as its host specificity. The lifespan of Amoebophrya sp. ex. A.sanguinea was approximately 58h. The infective dinospores can survive up to 78h in ambient waters but gradually lose their infectivity. The parasitoid was unable to infect other dinoflagellate species, its infection rate reached as high as 91% when the ratio of dinospores to host cells was 20:1. The high infectivity of dinospores suggests that the Amoebophrya strain was capable of removing a considerable fraction of host biomass within a short period, but that it is probably unable to maintain high infection levels under nonbloom conditions of its host, due to limited survival and time constraints in encountering host cells.
KeywordDiversity harmful algal blooms life cycle parasitism
Subject AreaMicrobiology
DOI10.1111/jeu.12489
Indexed BySCIE
Language英语
WOS Research AreaMicrobiology
WOS IDWOS:000437686500002
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/157553
Collection海洋生态与环境科学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266200, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS
Recommended Citation
GB/T 7714
Chen, Tiantian,Liu, Yun,Song, Shuqun,et al. Characterization of the Parasitic Dinoflagellate Amoebophrya sp Infecting Akashiwo sanguinea in Coastal Waters of China[J]. JOURNAL OF EUKARYOTIC MICROBIOLOGY,2018,65(4):448-457.
APA Chen, Tiantian,Liu, Yun,Song, Shuqun,&Li, Caiwen.(2018).Characterization of the Parasitic Dinoflagellate Amoebophrya sp Infecting Akashiwo sanguinea in Coastal Waters of China.JOURNAL OF EUKARYOTIC MICROBIOLOGY,65(4),448-457.
MLA Chen, Tiantian,et al."Characterization of the Parasitic Dinoflagellate Amoebophrya sp Infecting Akashiwo sanguinea in Coastal Waters of China".JOURNAL OF EUKARYOTIC MICROBIOLOGY 65.4(2018):448-457.
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