Interactions of<i>Vibrio</i>spp. with Zooplankton

Erken, Martina; Lutz, Carla; McDougald, Diane

doi:10.1128/microbiolspec.ve-0003-2014

Cited by 27 publications

(39 citation statements)

References 135 publications

(140 reference statements)

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“…Taken together, these results suggest a tight association between crustacean zooplankton and Flavobacteria , the latter being able to metabolize high molecular weight organics from the zooplankton's exoskeleton. Intriguingly, we did not obtain sequences related to Vibrio spp., another important player in chitin mineralization often associated with crustacean zooplankton (Erken et al ., ) in contrast to previous studies conducted in coastal systems (Montanari et al ., ; Turner et al ., ). This discrepancy could be explained by a relatively lower abundance of Vibrio ssp.…”

Section: Discussionmentioning

confidence: 99%

Metagenomic insights into zooplankton‐associated bacterial communities

Corte

Srivastava

Koski

et al. 2017

Environmental Microbiology

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SummaryZooplankton and microbes play a key role in the ocean's biological cycles by releasing and consuming copious amounts of particulate and dissolved organic matter. Additionally, zooplankton provide a complex microhabitat rich in organic and inorganic nutrients in which bacteria thrive. In this study, we assessed the phylogenetic composition and metabolic potential of microbial communities associated with crustacean zooplankton species collected in the North Atlantic. Using Illumina sequencing of the 16S rRNA gene, we found significant differences between the microbial communities associated with zooplankton and those inhabiting the surrounding seawater. Metagenomic analysis of the zooplankton‐associated microbial community revealed a highly specialized bacterial community able to exploit zooplankton as microhabitat and thus, mediating biogeochemical processes generally underrepresented in the open ocean. The zooplankton‐associated bacterial community is able to colonize the zooplankton's internal and external surfaces using a large set of adhesion mechanisms and to metabolize complex organic compounds released or exuded by the zooplankton such as chitin, taurine and other complex molecules. Moreover, the high number of genes involved in iron and phosphorus metabolisms in the zooplankton‐associated microbiome suggests that this zooplankton‐associated bacterial community mediates specific biogeochemical processes (through the proliferation of specific taxa) that are generally underrepresented in the ambient waters.

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Section: Discussionmentioning

confidence: 99%

Metagenomic insights into zooplankton‐associated bacterial communities

Corte

Srivastava

Koski

et al. 2017

Environmental Microbiology

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“…C ompetition for resources is a major driver in the diversification of organisms, affecting metabolic strategies as well as habitat and organismal associations (1)(2)(3)(4). While marine bacteria of the family Vibrionaceae are typically considered specialized for animal associations, a remarkable variety of lifestyles have arisen along with the capacity to utilize distinct assortments of diverse substrates during environmental or host interactions (5)(6)(7)(8)(9)(10), and these changes yield promising bioengineering insights and applications (11,12). Accordingly, fine-scale mapping of differences in metabolic capabilities and habitat associations among closely related isolates has enabled the identification of distinct populations with high resolution, offering valuable insights into the selective forces and fitness trade-offs in natural environments (13)(14)(15)(16).…”

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confidence: 99%

Evolution of a Vegetarian Vibrio: Metabolic Specialization of Vibrio breoganii to Macroalgal Substrates

et al. 2018

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While most are considered generalists that thrive on diverse substrates, including animal-derived material, we show that has specialized for the consumption of marine macroalga-derived substrates. Genomic and physiological comparisons of with other isolates revealed the ability to degrade alginate, laminarin, and additional glycans present in algal cell walls. Moreover, the widely conserved ability to hydrolyze animal-derived polymers, including chitin and glycogen, was lost, along with the ability to efficiently grow on a variety of amino acids. Ecological data showing associations with particulate algal material but not zooplankton further support this shift in niche preference, and the loss of motility appears to reflect a sessile macroalga-associated lifestyle. Together, these findings indicate that algal polysaccharides have become a major source of carbon and energy in , and these ecophysiological adaptations may facilitate transient commensal associations with marine invertebrates that feed on algae. Vibrios are often considered animal specialists or generalists. Here, we show that has undergone massive genomic changes to become specialized on algal carbohydrates. Accompanying genomic changes include massive gene import and loss. These vibrios may help us better understand how algal biomass is degraded in the environment and may serve as a blueprint on how to optimize the conversion of algae to biofuels.

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“…occupy distinct ecological niches and possess unique physiological capabilities, including virulence mechanisms and modes of infection. This applies to community associations as well; demonstrating the potential importance of species-level associations, Turner et al [16,48] found that while total Vibrio spp. bacteria were negatively correlated with copepods in a particular size fraction (63-200 µm), the pathogenic species V. parahaemolyticus and V. vulnificus were actually positively associated with copepods.…”

Section: Culture Dependent and Independent Sequencing Methods Highligmentioning

confidence: 99%

Microbiomes of pathogenic Vibrio species reveal environmental and planktonic associations

Diner

Rabines

Zheng

et al. 2019

Preprint

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Background Many species of coastal Vibrio spp. bacteria can infect humans, representing an emerging health threat linked to increasing seawater temperatures. Vibrio interactions with the planktonic community impact coastal ecology and human infection potential. In particular, interactions with eukaryotic and photosynthetic organism may provide attachment substrate and critical nutrients (e.g. chitin, phytoplankton exudates) that facilitate the persistence, diversification, and spread of pathogenic Vibrio spp. Vibrio interactions with these organisms in an environmental context are, however, poorly understood. ResultsWe quantified pathogenic Vibrio species, including V. cholerae, V. parahaemolyticus, and V. vulnificus, and two virulence-associated genes for one year at five coastal sites in Southern California and used metabarcoding to profile associated prokaryotic and eukaryotic communities, including vibrio-specific communities. These Vibrio spp. reached high abundances, particularly during Summer months, and inhabited distinct species-specific environmental niches driven by temperature and salinity. Associated bacterial and eukaryotic taxa identified at fine-scale taxonomic resolution revealed genus and species-level relationships. For example, common Thalassiosira genera diatoms capable of exuding chitin were positively associated with V. cholerae and V. vulnificus in a speciesspecific manner, while the most abundant eukaryotic genus, the diatom Chaetoceros, was positively associated with V. parahaemolyticus. Associations were often linked to shared environmental preferences, and several copepod genera were linked to low-salinity environmental conditions and abundant V. cholerae and V. vulnificus.Conclusions This study clarifies ecological relationships between pathogenic Vibrio spp. and the planktonic community, elucidating new functionally relevant associations, establishing a workflow for examining environmental pathogen microbiomes, and highlighting prospective model systems for future mechanistic studies. BackgroundCoastal bacterial Vibrio species can cause severe human infections, which are an emerging 3 international health concern linked to rising global temperatures. V. cholerae, the causative agent of the disease cholera, infects millions of people each year, killing thousands, and is typically spread through ingesting contaminated drinking water [1]. Two other species of major concern are V. parahaemolyticus and V. vulnificus, which can cause severe wound infections, septicemia, and gastroenteritis from ingesting Vibrio-colonized seafood [2]. Several particularly dangerous pandemic strains have been identified, and non-virulent strains may become virulent via horizontal gene transfer as many infection-related genes are mobile [3]. Additionally, at least a dozen other species can infect humans or animals, extending the threat to aquaculture operations. Climate change may exacerbate the extent of these infections. Increasing air and water temperatures can facilitate increased metabolic growth capacit...

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Interactions ofVibriospp. with Zooplankton

Cited by 27 publications

References 135 publications

Metagenomic insights into zooplankton‐associated bacterial communities

Metagenomic insights into zooplankton‐associated bacterial communities

Evolution of a Vegetarian Vibrio: Metabolic Specialization of Vibrio breoganii to Macroalgal Substrates

Microbiomes of pathogenic Vibrio species reveal environmental and planktonic associations

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