Hyphomonas adhaerens sp. nov., Hyphomonas johnsonii sp. nov. and Hyphomonas rosenbergii sp. nov., marine budding and prosthecate bacteria.

Weiner, Ronald M.; Melick, M; O'Neill, Kellie; Quintero, Ernesto J.

doi:10.1099/00207713-50-2-459

Cited by 78 publications

(45 citation statements)

References 46 publications

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“…The most striking enrichment was an OTU belonging to the Hyphomonadaceae family of Alphaproteobacteria ( Figures 2 and 3), with close similarity to isolates of Hyphomonas and Caulobacter (Table 5; Supplementary Figure S6), which came to compose nearly 3.5% of the total 16S sequences. These OTUs belong to a group of widespread oligotrophic budding organisms found in many aquatic environments but with no evidence for pathogenicity (Stahl et al, 1992;Weiner et al, 2000;Badger et al, 2005). Other taxa enriched in the Porites exudate amendments included OTUs closely related to the Alphaproteobacteria Sneathiella and Erythrobacter and to the Gammaproteobacteria Haliea and Thalassobius, all associated with free-living oligotrophic to mesotrophic coastal marine environments and with no known pathogenic lifestyles (Koblížek et al, 2003;Jordan et al, 2007;Urios et al, 2008;Park et al, 2012).…”

Section: Differential Growth Of Bacterioplankton Taxa On Dom Exudatesmentioning

confidence: 99%

Coral and macroalgal exudates vary in neutral sugar composition and differentially enrich reef bacterioplankton lineages

et al. 2013

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Increasing algal cover on tropical reefs worldwide may be maintained through feedbacks whereby algae outcompete coral by altering microbial activity. We hypothesized that algae and coral release compositionally distinct exudates that differentially alter bacterioplankton growth and community structure. We collected exudates from the dominant hermatypic coral holobiont Porites spp. and three dominant macroalgae (one each Ochrophyta, Rhodophyta and Chlorophyta) from reefs of Mo'orea, French Polynesia. We characterized exudates by measuring dissolved organic carbon (DOC) and fractional dissolved combined neutral sugars (DCNSs) and subsequently tracked bacterioplankton responses to each exudate over 48 h, assessing cellular growth, DOC/DCNS utilization and changes in taxonomic composition (via 16S rRNA amplicon pyrosequencing). Fleshy macroalgal exudates were enriched in the DCNS components fucose (Ochrophyta) and galactose (Rhodophyta); coral and calcareous algal exudates were enriched in total DCNS but in the same component proportions as ambient seawater. Rates of bacterioplankton growth and DOC utilization were significantly higher in algal exudate treatments than in coral exudate and control incubations with each community selectively removing different DCNS components. Coral exudates engendered the smallest shift in overall bacterioplankton community structure, maintained high diversity and enriched taxa from Alphaproteobacteria lineages containing cultured representatives with relatively few virulence factors (VFs) (Hyphomonadaceae and Erythrobacteraceae). In contrast, macroalgal exudates selected for less diverse communities heavily enriched in copiotrophic Gammaproteobacteria lineages containing cultured pathogens with increased VFs (Vibrionaceae and Pseudoalteromonadaceae). Our results demonstrate that algal exudates are enriched in DCNS components, foster rapid growth of bacterioplankton and select for bacterial populations with more potential VFs than coral exudates.

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Section: Differential Growth Of Bacterioplankton Taxa On Dom Exudatesmentioning

confidence: 99%

Coral and macroalgal exudates vary in neutral sugar composition and differentially enrich reef bacterioplankton lineages

et al. 2013

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“…strain TM1040) mutants defective in wild-type swimming motility, due to a loss of flagella or to increased cell length, are also defective in attachment to dinoflagellates (609). Although most holdfast-producing (or rosette-forming) bacteria possess a polar monotrichous flagellum (590)(591)(592), not all of the holdfastproducing bacteria have a polar flagellum or flagella. Some bacteria use polar fimbriae for initial surface contact, followed by the use of the holdfast for subsequent irreversible attachment, which is likely induced by fimbria-surface interactions (596,597).…”

Section: The Holdfast a Specialized Colonizing Apparatus In Primary mentioning

confidence: 99%

“…Some other marine bacteria may also produce a holdfast, as indicated by their ability to form rosettelike aggregates, a characteristic associated with (though not shown to date to be directly connected to) holdfast production (593)(594)(595). The expression of the holdfast seems to be inducible, by direct contact with a surface or other bacteria or by specific microbial physiological status or environmental conditions (591)(592)(593)(596)(597)(598). In Caulobacter crescentus, a sequence of specific steps is involved in surface colonization, with initial reversible adhesion mediated by pili, followed by an arrest of flagellar rotation and subsequent induction of a holdfast for irreversible adhesion (599).…”

Section: The Holdfast a Specialized Colonizing Apparatus In Primary mentioning

confidence: 99%

Microbial Surface Colonization and Biofilm Development in Marine Environments

Dang

Lovell

2016

Microbiol Mol Biol Rev

835

636

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SUMMARYBiotic and abiotic surfaces in marine waters are rapidly colonized by microorganisms. Surface colonization and subsequent biofilm formation and development provide numerous advantages to these organisms and support critical ecological and biogeochemical functions in the changing marine environment. Microbial surface association also contributes to deleterious effects such as biofouling, biocorrosion, and the persistence and transmission of harmful or pathogenic microorganisms and their genetic determinants. The processes and mechanisms of colonization as well as key players among the surface-associated microbiota have been studied for several decades. Accumulating evidence indicates that specific cell-surface, cell-cell, and interpopulation interactions shape the composition, structure, spatiotemporal dynamics, and functions of surface-associated microbial communities. Several key microbial processes and mechanisms, including (i) surface, population, and community sensing and signaling, (ii) intraspecies and interspecies communication and interaction, and (iii) the regulatory balance between cooperation and competition, have been identified as critical for the microbial surface association lifestyle. In this review, recent progress in the study of marine microbial surface colonization and biofilm development is synthesized and discussed. Major gaps in our knowledge remain. We pose questions for targeted investigation of surface-specific community-level microbial features, answers to which would advance our understanding of surface-associated microbial community ecology and the biogeochemical functions of these communities at levels from molecular mechanistic details through systems biological integration.

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“…Hyphomonas species typically catabolize protein and amino acids for energy and growth (Weiner et al 2000), and the high abundance of H. oceanitis in the Skagerrak could be due to an ability to utilize these substrates in an otherwise nitrogen-limited environment. Also Vladibacter sp.…”

Section: Distribution Of Bacteria In Relation To Life History Traitsmentioning

confidence: 99%

Spatial variability in bacterioplankton community composition at the Skagerrak-Kattegat Front

Pinhassi¹,

Winding²,

Binnerup³

et al. 2003

Mar. Ecol. Prog. Ser.

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The distribution of bacterial heterotrophic production and cell concentrations in the world oceans is well documented. Nevertheless, information on the distribution of specific bacterial taxa and how this is influenced by environmental factors in separate sea areas is sparse. Here we report on bacterial community structure across the Skagerrak-Kattegat front. The front separates North Sea water from water with a Baltic Sea origin. We documented community differences across the front using denaturing gradient gel electrophoresis (DGGE) analysis of PCR-amplified bacterial 16S ribosomal DNA and whole-genome DNA hybridization towards community DNA. Analysis of the community 'fingerprints' by DGGE revealed clustering of samples according to side of the front and depth. Consistent with these results, whole-genome DNA hybridization for 28 bacterial species isolated from the sampling region indicated that bacteria related to the Roseobacter clade and Bacteroidetes as well as prosthecate bacteria (e.g. Hyphomonas) showed distinct distribution patterns on each side of the front, and also with depth. Differences in bacterioplankton species composition across the frontal area were paralleled by differences in quantitative variables such as phytoplankton biomass (chl a), dissolved organic carbon, and bacterial production. Furthermore, we observed differences in more descriptive variables such as salinity range, bacterial growth-limiting nutrients and phytoplankton composition. We suggest that not only quantitative but also qualitative differences in variables that affect bacterial growth are required to cause divergence in bacterioplankton community composition between marine regions.

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Hyphomonas adhaerens sp. nov., Hyphomonas johnsonii sp. nov. and Hyphomonas rosenbergii sp. nov., marine budding and prosthecate bacteria.

Cited by 78 publications

References 46 publications

Coral and macroalgal exudates vary in neutral sugar composition and differentially enrich reef bacterioplankton lineages

Coral and macroalgal exudates vary in neutral sugar composition and differentially enrich reef bacterioplankton lineages

Microbial Surface Colonization and Biofilm Development in Marine Environments

Spatial variability in bacterioplankton community composition at the Skagerrak-Kattegat Front

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