دورية أكاديمية
أعرض في EDS

Host individual and gut location are more important in gut microbiota community composition than temporal variation in the marine herbivorous fish Kyphosus sydneyanus.

التفاصيل البيبلوغرافية
العنوان: Host individual and gut location are more important in gut microbiota community composition than temporal variation in the marine herbivorous fish Kyphosus sydneyanus.
المؤلفون: Pisaniello A; School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand. alessandro.pisaniello@auckland.ac.nz., Handley KM; School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand., White WL; School of Science, Auckland University of Technology, Private Bag 92006, Auckland, New Zealand., Angert ER; Department of Microbiology, Cornell University, 123 Wing Drive, Ithaca, NY, 14853, USA., Boey JS; School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand., Clements KD; School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, New Zealand. k.clements@auckland.ac.nz.
المصدر: BMC microbiology [BMC Microbiol] 2023 Sep 29; Vol. 23 (1), pp. 275. Date of Electronic Publication: 2023 Sep 29.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: BioMed Central Country of Publication: England NLM ID: 100966981 Publication Model: Electronic Cited Medium: Internet ISSN: 1471-2180 (Electronic) Linking ISSN: 14712180 NLM ISO Abbreviation: BMC Microbiol Subsets: MEDLINE
أسماء مطبوعة: Original Publication: London : BioMed Central, [2001-
مواضيع طبية MeSH: Gastrointestinal Microbiome* , Perciformes*, Animals ; RNA, Ribosomal, 16S/genetics ; Fishes/microbiology ; Digestive System ; Bacteria/genetics ; Bacteroidetes/genetics
مستخلص: Background: Gut microbiota play a key role in the nutrition of many marine herbivorous fishes through hindgut fermentation of seaweed. Gut microbiota composition in the herbivorous fish Kyphosus sydneyanus (family Kyphosidae) varies between individuals and gut sections, raising two questions: (i) is community composition stable over time, especially given seasonal shifts in storage metabolites of dietary brown algae, and (ii) what processes influence community assembly in the hindgut?
Results: We examined variation in community composition in gut lumen and mucosa samples from three hindgut sections of K. sydneyanus collected at various time points in 2020 and 2021 from reefs near Great Barrier Island, New Zealand. 16S rRNA gene analysis was used to characterize microbial community composition, diversity and estimated density. Differences in community composition between gut sections remained relatively stable over time, with little evidence of temporal variation. Clostridia dominated the proximal hindgut sections and Bacteroidia the most distal section. Differences were detected in microbial composition between lumen and mucosa, especially at genus level.
Conclusions: High variation in community composition and estimated bacterial density among individual fish combined with low variation in community composition temporally suggests that initial community assembly involved environmental selection and random sampling/neutral effects. Community stability following colonisation could also be influenced by historical contingency, where early colonizing members of the community may have a selective advantage. The impact of temporal changes in the algae may be limited by the dynamics of substrate depletion along the gut following feeding, i.e. the depletion of storage metabolites in the proximal hindgut. Estimated bacterial density, showed that Bacteroidota has the highest density (copies/mL) in distal-most lumen section V, where SCFA concentrations are highest. Bacteroidota genera Alistipes and Rikenella may play important roles in the breakdown of seaweed into useful compounds for the fish host.
(© 2023. BioMed Central Ltd., part of Springer Nature.)
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فهرسة مساهمة: Keywords: Community assembly; Gut microbiota; Herbivory; Host-individual variation; Seasons; ddPCR
المشرفين على المادة: 0 (RNA, Ribosomal, 16S)
تواريخ الأحداث: Date Created: 20230929 Date Completed: 20231005 Latest Revision: 20231121
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC10540440
DOI: 10.1186/s12866-023-03025-2
PMID: 37773099
قاعدة البيانات: MEDLINE
الوصف
تدمد:1471-2180
DOI:10.1186/s12866-023-03025-2