Chloroplast Ultrastructure and Photosynthetic Response of the Dinoflagellate Akashiwo sanguinea Throughout Infection by Amoebophrya sp.

doi:10.3389/fmars.2021.742498

	Chloroplast Ultrastructure and Photosynthetic Response of the Dinoflagellate Akashiwo sanguinea Throughout Infection by Amoebophrya sp.
	Chen, Tiantian1,2,3 ; Liu, Yun 1,2,3,4; Hu, Zhangxi1,2 ; Song, Shuqun 1,2,3; Li, Caiwen 1,2,3,4
	2021-11-26
发表期刊	FRONTIERS IN MARINE SCIENCE
卷号	8 页码:12
通讯作者	Li, Caiwen(cwli@qdio.ac.cn)
摘要	The endoparasitic dinoflagellate Amoebophrya infects a number of marine dinoflagellates, including toxic and harmful algal bloom-forming species. The parasite kills its host and has been proposed to be a determining factor in the demise of dinoflagellate blooms in restricted coastal waters. Previous studies have mainly focused on the occurrence, prevalence, and diversity of Amoebophrya, while the interactions between the parasite and its host have received limited attention. Herein, an Amoebophrya sp.-Akashiwo sanguinea co-culture was established from Chinese coastal waters, and morphological, physiological, and transcriptional changes throughout an infection cycle of the parasite were systemically studied. The parasitic dinoflagellate was very infectious, resulting in an infection rate up to 85.83% at a dinospore:host ratio of 10:1. Infected host cells died eventually and released approximately 370 dinospores/cell. The host nuclear structures were rapidly degraded by Amoebophrya infection, and the chloroplasts of parasitized host cells remained intact until the parasite filled the almost entire cell structure. Nevertheless, infected cultures showed sustained but lower levels of photosynthetic performance (similar to 64% of control cultures), and the photosynthesis-related genes were significantly down-regulated. These findings provide a better understanding of the biological basis of the complex parasite-host interactions, which will be helpful to further elucidate the ecological significance of parasitic dinoflagellates in marine ecosystems.
关键词	Amoebophrya dinoflagellate parasitism photophysiology ultrastructure
DOI	10.3389/fmars.2021.742498
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41876120] ; National Natural Science Foundation of China[41906122] ; Key Deployment Project of Centre for Ocean Mega-Science, Chinese Academy of Sciences[COMS2020Q06] ; China Postdoctoral Science Foundation[2018M642709] ; Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao)[2018SDKJ0504-2]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:000770938000001
出版者	FRONTIERS MEDIA SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/178459
专题	海洋生态与环境科学重点实验室
通讯作者	Li, Caiwen
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Chen, Tiantian,Liu, Yun,Hu, Zhangxi,et al. Chloroplast Ultrastructure and Photosynthetic Response of the Dinoflagellate Akashiwo sanguinea Throughout Infection by Amoebophrya sp.[J]. FRONTIERS IN MARINE SCIENCE,2021,8:12.
APA	Chen, Tiantian,Liu, Yun,Hu, Zhangxi,Song, Shuqun,&Li, Caiwen.(2021).Chloroplast Ultrastructure and Photosynthetic Response of the Dinoflagellate Akashiwo sanguinea Throughout Infection by Amoebophrya sp..FRONTIERS IN MARINE SCIENCE,8,12.
MLA	Chen, Tiantian,et al."Chloroplast Ultrastructure and Photosynthetic Response of the Dinoflagellate Akashiwo sanguinea Throughout Infection by Amoebophrya sp.".FRONTIERS IN MARINE SCIENCE 8(2021):12.