Harbor systems represent passive gateways for the introduction of nonnative ascidians that compete with the surrounding benthos and may spread through localized dispersal, even populating adjacent natural reefs. To investigate the potential role of microbial symbionts in the success of ascidian introductions and spread, we evaluated the host-specificity of prokaryotic communities within two ascidian species commonly found off the North Carolina coast. Replicate samples of the native ascidian Eudistoma capsulatum, the nonnative ascidian Distaplia bermudensis and seawater were collected from artificial (harbor) and natural reef substrates. Prokaryotic communities in seawater samples and ascidian tunics were characterized via next-generation sequencing of partial 16S rRNA gene sequences. Ascidian microbiomes clustered strongly in response to host species, with significant differences in community structure between the two species and seawater. Further, symbiont community structure differed significantly between E. capsulatumindividuals collected from artificial and natural habitats, though this was not the case for D. bermudensis. These findings suggested that some ascidian species possess stable microbial symbiont communities that allow them to thrive in a wide range of habitats, while other species rely on the restructuring of their microbial communities with specific symbionts (e.g. Chelativorans) to survive under particular environmental conditions such as increased pollution.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/femsec/fiy139 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Phocaeicola vulgatus shapes the long-term growth dynamics and evolutionary adaptations of Clostridioides difficile.
Cell Host Microbe
December 2024
Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, USA; Department of Chemical & Biological Engineering, University of Wisconsin-Madison, Madison, WI, USA; Department of Biomedical Engineering, Duke University, Durham, NC, USA; Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA; Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA. Electronic address:
Clostridioides difficile can transiently or persistently colonize the human gut, posing a risk for infections. This colonization is influenced by complex molecular and ecological interactions with the human gut microbiota. By investigating C.
View Article and Find Full Text PDFA novel open-source cultivation system helps establish the first full cycle chemosynthetic symbiosis model system involving the giant ciliate .
Front Microbiol
December 2024
Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA, United States.
Symbiotic interactions drive species evolution, with nutritional symbioses playing vital roles across ecosystems. Chemosynthetic symbioses are globally distributed and ecologically significant, yet the lack of model systems has hindered research progress. The giant ciliate and its sulfur-oxidizing symbionts represent the only known chemosynthetic symbiosis with a short life span that has been transiently cultivated in the laboratory.
View Article and Find Full Text PDFThe Healthy Oral Microbiome: A Changing Ecosystem throughout the Human Lifespan.
J Dent Res
December 2024
Institute of Microbiology and School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Microorganisms have co-evolved with a variety of plants and animals, developing complex symbiotic relationships with their hosts and the environment. The diversity of symbionts acquired over time help their hosts to adapt, survive, and evolve more rapidly and efficiently, improving fitness across the lifespan. Understanding these synergistic relationships between humans and their endogenous microbiota may provide valuable information on human physiology and on potential mechanisms associated with the onset of diseases.
View Article and Find Full Text PDFMicrobiome composition and turnover in the face of complex lifecycles and bottlenecks: insights through the study of dung beetles.
Appl Environ Microbiol
December 2024
Department of Biology, Indiana University Bloomington, Bloomington, Indiana, USA.
Unlabelled: Microbiome composition and function often change throughout a host's life cycle, reflecting shifts in the ecological niche of the host. The mechanisms that establish these relationships are therefore important dimensions of host ecology and evolution; yet, their nature remains poorly understood. Here, we sought to investigate the microbial communities associated with the complex life cycle of the dung beetle and the relative contributions of host life stage, sex, and environment in determining microbiome assembly.
View Article and Find Full Text PDFEco-evolutionary dynamics of host-microbiome interactions in a natural population of closely related mouse subspecies and their hybrids.
Proc Biol Sci
December 2024
Department of Molecular Parasitology, Institute for Biology, Humboldt University Berlin (HU). Philippstr. 13 Haus 14, Berlin 10115, Germany.
Article Synopsis
- Host species that are closely related have similar microbial communities, but the roles of genetic admixture and environment on these communities are not well understood.
- The study examined the effects of host genetic differences and environmental factors on the gut microbiomes (including bacteria, fungi, and parasites) of two subspecies of house mice and their hybrids, both in the wild and in laboratory settings.
- Results showed that environmental factors predominantly shaped microbiome composition, while genetic differences had a significant impact, especially on fungi, indicating that host genetics and environmental influences are crucial for understanding host-microbiome interactions.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!