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Lactobacillus planarum subsp. plantarum JCM 1149 vs. Aeromonas hydrophila NJ-1 in the anterior intestine and posterior intestine of hybrid tilapia Oreochromis niloticus ♀ × Oreochromis aureus ♂: an ex vivo study.
MedLine Citation:
PMID:  23664914     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
To investigate the ex vivo interactions of probiotic-pathogen-host in warm-water fish, hybrid tilapia (Oreochromis niloticus♀ × Oreochromis aureus♂) were sacrificed to isolate anterior and posterior intestine for incubation with phosphate-buffered saline (PBS; pH 7.2) as the control, L. plantarum JCM 1149 at 1.0×10(9) CFU/ml, A. hydrophila NJ-1 at 1.0×10(8) CFU/ml, or the both combination. Denaturing Gradient Gel Electrophoresis (DGGE) fingerprint and consequent sequence analysis confirmed anterior intestine sac was more prone to the colonization of L. plantarum JCM 1149 and A. hydrophila NJ-1 than the posterior part. L. plantarum JCM 1149 and A. hydrophila NJ-1 inhibited the population each other in anterior or posterior sac, indicating their competition for the colonization. The induced expression of HSP70, IL-1β and TNF-α in the anterior sac by the addition of L. plantarum JCM 1149 or A. hydrophila NJ-1 demonstrated the activity and a local immune response of ex vivo anterior sac. Compared with posterior intestine, higher population colonization and more sensitive immune response of anterior sac indicated differential patterns for the probiotic-pathogen-host interactions. Scanning electronic microscopy (SEM) observation showed that pathogen A. hydrophila NJ-1 damaged the anterior intestine, which was alleviated by the pretreatment of L. plantarum JCM 1149, showing its probiotic effect.
Authors:
Pengfei Ren; Li Xu; Yaling Yang; Suxu He; Wenshu Liu; Einar Ringø; Zhigang Zhou
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-5-9
Journal Detail:
Title:  Fish & shellfish immunology     Volume:  -     ISSN:  1095-9947     ISO Abbreviation:  Fish Shellfish Immunol.     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-5-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9505220     Medline TA:  Fish Shellfish Immunol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013. Published by Elsevier Ltd.
Affiliation:
Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China.
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