Response of the Litopenaeus vananmei intestinal bacteria and antioxidant system to rearing density and exposure to Vibrio paraheamolyticus E1

doi:10.1016/j.jip.2020.107326

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	Response of the Litopenaeus vananmei intestinal bacteria and antioxidant system to rearing density and exposure to Vibrio paraheamolyticus E1
	Wang, Yilong1,2,3 ; Liu, Mei 1,2; Wang, Baojie 1,2; Jiang, Keyong 1,2; Wang, Mengqiang1,4,6 ; Wang, Lei 1,2,5
	2020-02-01
Source Publication	JOURNAL OF INVERTEBRATE PATHOLOGY
ISSN	0022-2011
Volume	170 Pages:11
Corresponding Author	Wang, Mengqiang(wangmengqiang@qdio.ac.cn) ; Wang, Lei(leiwang@qdio.ac.cn)
Abstract	Intestinal bacteria and bacterial metabolic products are indispensable components of both invertebrate and vertebrate physiology, directly influencing many functions including host energy absorption and metabolism, intestinal barrier integrity and immune function. To investigate the influence of rearing density on shrimp intestinal health, antioxidant responses and disease susceptibility, we simultaneously monitored the dynamic changes of intestinal bacteria and antioxidant enzymes activities in Litopenaeus vananmei under two different rearing densities (400 and 800 shrimp/m(3)) and further investigated the difference in response to Vibrio paraheamolyticus E1 (VPE1) challenge. We showed that the phyla Proteobacteria, Bacteroidetes, Planctomycetes and Firmicutes were the predominant microflora in all treatment groups. Rearing L. vannamei at high density for 15 days resulted in the reduction of Bacteroidetes and Firmicutes and increase of Planctomycetes. At the genus level, high rearing density induced reduction of Pseudoalteromonas and Blastopirellula, and an increase of Photobacterium and Vibrio. Notably, the relative abundance of Ascidiaceihabitans and Flavobacteria NS10_marine_group increased in the low rearing density groups after VPE1 challenge, suggesting that these two types of bacteria might have an important role in resisting to VPE1 infection. High density stress caused suppression of total superoxide dismutase (T-SOD), catalase (CAT), and glutathione peroxidase (GPX) activities in shrimp. Hence, high density stress altered the functional composition of shrimp intestinal bacteria and damaged the antioxidant system, which increased pathogen susceptibility.
Keyword	Rearing density Vibrio parahaemolyticus E1 Intestinal bacteria Antioxidant system Litopenaeus vananmei
DOI	10.1016/j.jip.2020.107326
Indexed By	SCI
Language	英语
Funding Project	Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao)[2018SDKJ0502-2] ; Science and Technology Development Fund Project of Shinan district, Qingdao City, China[2018-4-001-ZH]
WOS Research Area	Zoology
WOS Subject	Zoology
WOS ID	WOS:000552825100007
Publisher	ACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.qdio.ac.cn/handle/337002/168085
Collection	实验海洋生物学重点实验室
Corresponding Author	Wang, Mengqiang; Wang, Lei
Affiliation	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Natl Lab Marine Sci & Technol, Ctr Marine Mol Biotechnol, Qingdao 266237, Peoples R China 5.Chinese Acad Sci, CAS Ctr Ocean Megasci, Qingdao 266400, Peoples R China 6.Ocean Univ China, MOE Key Lab Marine Genet & Breeding, Qingdao 266003, Peoples R China
First Author Affilication	Institute of Oceanology, Chinese Academy of Sciences
Corresponding Author Affilication	Institute of Oceanology, Chinese Academy of Sciences; Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation GB/T 7714	Wang, Yilong,Liu, Mei,Wang, Baojie,et al. Response of the Litopenaeus vananmei intestinal bacteria and antioxidant system to rearing density and exposure to Vibrio paraheamolyticus E1[J]. JOURNAL OF INVERTEBRATE PATHOLOGY,2020,170:11.
APA	Wang, Yilong,Liu, Mei,Wang, Baojie,Jiang, Keyong,Wang, Mengqiang,&Wang, Lei.(2020).Response of the Litopenaeus vananmei intestinal bacteria and antioxidant system to rearing density and exposure to Vibrio paraheamolyticus E1.JOURNAL OF INVERTEBRATE PATHOLOGY,170,11.
MLA	Wang, Yilong,et al."Response of the Litopenaeus vananmei intestinal bacteria and antioxidant system to rearing density and exposure to Vibrio paraheamolyticus E1".JOURNAL OF INVERTEBRATE PATHOLOGY 170(2020):11.

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