Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 486754
Title Impact of a novel protein meal on the gastrointesinal microbiota and host transciptome of larval zebrafish Danio rerio
Author(s) Rurangwa, E.; Sipkema, D.; Kals, J.; Veld, M. ter; Forlenza, M.; Bacanu, G.M.; Smidt, H.; Palstra, A.P.
Source Frontiers in Physiology 6 (2015). - ISSN 1664-042X - 27 p.
DOI https://doi.org/10.3389/fphys.2015.00133
Department(s) WIAS
Aquaculture
Microbiology
Aquaculture and Fisheries
Department of Animal Sciences
Cell Biology and Immunology
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) large gene lists - intestinal microbiota - gut microbiota - digestive physiology - solea-senegalensis - metal uptake - sp-nov - fish - expression - iron
Abstract Larval zebrafish was subjected to a methodological exploration of the gastrointestinal microbiota and transcriptome. Assessed was the impact of two dietary inclusion levels of a novel protein meal (NPM) of animal origin (ragworm Nereis virens) on the gastrointestinal tract (GIT). Microbial development was assessed over the first 21 days post egg fertilisation (dpf) through 16S rRNA gene-based microbial composition profiling by pyrosequencing. Differentially expressed genes in the GIT were demonstrated at 21 dpf by whole transcriptome sequencing (mRNAseq). Larval zebrafish showed rapid temporal changes in microbial colonization but domination occurred by one to three bacterial species generally belonging to Proteobacteria and Firmicutes. The high iron content of NPM may have led to an increased relative abundance of bacteria that were related to potential pathogens and bacteria with an increased iron metabolism. Functional classification of the 328 differentially expressed genes indicated that the GIT of larvae fed at higher NPM level was more active in transmembrane ion transport and protein synthesis. mRNAseq analysis did not reveal a major activation of genes involved in the immune response or indicating differences in iron uptake and homeostasis in zebrafish fed at the high inclusion level of NPM
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