کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11008667 1840439 2019 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of the skin and gill microbiomes of the farmed seabass (Dicentrarchus labrax) and seabream (Sparus aurata)
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Characterization of the skin and gill microbiomes of the farmed seabass (Dicentrarchus labrax) and seabream (Sparus aurata)
چکیده انگلیسی
There is substantial evidence showing that the microbiome of teleosts plays a key role in host health and wellbeing. Aquaculture practices increase the risk of dysbiosis (i.e. microbial imbalance), which is known to facilitate pathogen infections. The skin and gills are the primary defense organs against pathogens, thus, characterizing their microbiome composition in farmed fish is pivotal for detecting potential alterations that may lead to disease susceptibility. Here, we assessed the skin and gill microbiomes of two of the most important adult fish species farmed in southern Europe, the seabass and the seabream, during winter months. We coupled next-generation sequencing (MiSeq) of the 16S rRNA V4 region with the DADA2 bioinformatic pipeline to assess microbial composition and structure. Variation in microbial alpha-diversity (intra-sample) and taxa proportions were assessed using analysis of variance. Differences in beta-diversity (between-sample) were tested using permutational multivariate analysis of variance. Microbiomes of both tissues (n = 30 per species) identified 19 bacteria phyla, dominated by the phyla Proteobacteria (44-68%) and Bacteroidetes (15-37%); the families Flavobacteriaceae (11-28%), Rhodobacteraeae (4-8%) and Vibrionaceae (2-17%); and the genera Rubritalea (4-13%), Pseudomonas (4-8%) and the NS3a marine group (4-12%). Mean relative proportion of these taxa, some alpha-diversity indices and all beta-diversity distances varied significantly between tissues within and between species. ASVs belonging to the genera Polaribacter and Vibrio, which include several species that are pathogenic, were detected in the core microbiomes of seabass or seabream.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquaculture - Volume 500, 1 February 2019, Pages 57-64
نویسندگان
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