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Adaptation of the white shrimp Litopenaeus vannamei to gradual changes to a low-pH environment
Han, Si-yin1,2,3; Wang, Bao-jie1,2; Liu, Mei1,2; Wang, Meng-qiang1,2; Jiang, Ke-yong1,2; Liu, Xin-wei1,2,3; Wang, Lei1,2
2018-03-01
Source PublicationECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN0147-6513
Volume149Pages:203-210
Corresponding AuthorWang, Lei(wanglei@qdio.ac.cn)
AbstractpH variation could cause a stress response in euryhaline penaeids, we evaluated the mortality, growth performance, osmoregulation gene expression, digestive enzyme activity, histology, and resistance against Vibrio parahemolyticus of white shrimp Litopenaeus vannamei reared under conditions of gradual changes to a low-pH environment (gradual-low pH, 6.65-8.20) or a high-pH environment (gradual-high pH, 8.20-9.81) versus a normal pH environment (8.14-8.31) during a 28-d experiment. Consequently, under gradual-high pH, the cumulative mortality rate (CMR) rose with time until 39.9% on days 28; the weight gain percentage (WGP) and length gain percentage (LGP) decreased continuously. However, under gradual-low pH, the CMR of shrimp stabilized at 6.67% during 7-28 d; the WGP and LGP decreased first and then returned to normal. These results indicated that L. vannamei displayed a moderate tolerance to gradual-low pH, compared with gradual-high pH. Under gradual-low pH, the Na+/K+-ATPase, cytoplasmic carbonic anydrase (CAc), and glycosyl-phosphatidylinositol-linked carbonic anhydrase (CAg) transcripts of shrimp increased continuously or then back to normal; the amylase, lipase, and trypsin activities decreased first and then returned to normal or increased; the hepatopancreases and midguts showed histopathological lesions first and then got remission. Thus, the major adaptation mechanism of shrimp to gradual-low pH might be its high osmoregulation ability, which made shrimp achieve a new, balanced steady-state, then promoted longer intestinal villi and recuperative hepatopancreases of shrimp with enhanced digestive enzyme activities to increase nutrient absorption after long-term exposure. Meanwhile, the enhanced resistance against V. parahemolyticus under gradual-low pH would probably inhibit disease outbreak in the shrimp farming.
KeywordLitopenaeus vannamei Gradual-low pH Mortality Growth performance Osmoregulation Vibrio parahemolyticus
DOI10.1016/j.ecoenv.2017.11.052
Indexed BySCI
Language英语
Funding ProjectMajor Science and Technology Projects of Shandong Province[2015ZDZX05002] ; STS Key Deployment Project of Chinese Academy of Sciences[KFZD-SW-106]
WOS Research AreaEnvironmental Sciences & Ecology ; Toxicology
WOS SubjectEnvironmental Sciences ; Toxicology
WOS IDWOS:000424068900027
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/158026
Collection实验海洋生物学重点实验室
Corresponding AuthorWang, Lei
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, 7 Nanhai Rd, 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, 19 Yuquan Rd, Beijing 100049, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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Han, Si-yin,Wang, Bao-jie,Liu, Mei,et al. Adaptation of the white shrimp Litopenaeus vannamei to gradual changes to a low-pH environment[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2018,149:203-210.
APA Han, Si-yin.,Wang, Bao-jie.,Liu, Mei.,Wang, Meng-qiang.,Jiang, Ke-yong.,...&Wang, Lei.(2018).Adaptation of the white shrimp Litopenaeus vannamei to gradual changes to a low-pH environment.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,149,203-210.
MLA Han, Si-yin,et al."Adaptation of the white shrimp Litopenaeus vannamei to gradual changes to a low-pH environment".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 149(2018):203-210.
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