Microbial biomass and community structures in the burrows of bromophenol producing and non-producing marine worms and surrounding sediments

Cc, Steward; Sc, Nold; Db, Ringelberg; White, DC; Cr, Lovell

doi:10.3354/meps133149

Cited by 68 publications

(87 citation statements)

References 27 publications

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“…In contrast, in this study the bacterial communities inhabiting the burrow wall more closely resembled those in surface rather than subsurface sediment. Similar observations have been made for polychaete worm burrows (Steward et al, 1996) and other thalassinidean shrimp burrows (Bertics and Ziebis, 2009). Such relationships between burrow and surface communities may be a consequence of similarities in their physicochemical environments, at least for some species (Bird et al, 2000;Bertics and Ziebis, 2009); although previous studies have cautioned that the burrow should not be seen as a simple extension of the sediment surface (Papaspyrou et al, 2005).…”

Section: Figuresupporting

confidence: 51%

Bioturbating shrimp alter the structure and diversity of bacterial communities in coastal marine sediments

et al. 2010

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Bioturbation is a key process in coastal sediments, influencing microbially driven cycling of nutrients as well as the physical characteristics of the sediment. However, little is known about the distribution, diversity and function of the microbial communities that inhabit the burrows of infaunal macroorganisms. In this study, terminal-restriction fragment length polymorphism analysis was used to investigate variation in the structure of bacterial communities in sediment bioturbated by the burrowing shrimp Upogebia deltaura or Callianassa subterranea. Analyses of 229 sediment samples revealed significant differences between bacterial communities inhabiting shrimp burrows and those inhabiting ambient surface and subsurface sediments. Bacterial communities in burrows from both shrimp species were more similar to those in surface-ambient than subsurface-ambient sediment (R ¼ 0.258, Po0.001). The presence of shrimp was also associated with changes in bacterial community structure in surrounding surface sediment, when compared with sediments uninhabited by shrimp. Bacterial community structure varied with burrow depth, and also between individual burrows, suggesting that the shrimp's burrow construction, irrigation and maintenance behaviour affect the distribution of bacteria within shrimp burrows. Subsequent sequence analysis of bacterial 16S rRNA genes from surface sediments revealed differences in the relative abundance of bacterial taxa between shrimp-inhabited and uninhabited sediments; shrimp-inhabited sediment contained a higher proportion of proteobacterial sequences, including in particular a twofold increase in Gammaproteobacteria. Chao1 and ACE diversity estimates showed that taxon richness within surface bacterial communities in shrimp-inhabited sediment was at least threefold higher than that in uninhabited sediment. This study shows that bioturbation can result in significant structural and compositional changes in sediment bacterial communities, increasing bacterial diversity in surface sediments and resulting in distinct bacterial communities even at depth within the burrow. In an area of high macrofaunal abundance, this could lead to alterations in the microbial transformations of important nutrients at the sediment-water interface.

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Section: Figuresupporting

confidence: 51%

Bioturbating shrimp alter the structure and diversity of bacterial communities in coastal marine sediments

et al. 2010

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“…Although ammonium oxidation appears especially sensitive to bromophenol inhibition, other aerobic processes, including thymidine uptake, may be relatively insensitive (Steward et al 1992(Steward et al , 1996. Likewise, anaerobic processes such as sulfate reduction appear insensitive to bromophenols, at least at typical ambient concentrations.…”

Section: Methodsmentioning

confidence: 99%

“…Slightly higher bacterial densities occur in the burrow wall lining of Stereobalanus canadensis, a 2,4,6-tribromophenol (TBP)-containing enteropneust, than in adjacent sediments, but bacterial cell density, acetate assimilation, microalgal biomass and production, and meiofaunal densities do not differ significantly between bulk sediments and sediments from areas with Notomastus lobatus, a 4-bromophenol (BP)-containing capitellid polychaete (Steward et al 1992). Similarly, no significant differences in microbial biomass and community structure have been noted for burrow sediments of N. lobatus and Branchyoasychus americana, a polychaete that does not contain bromophenols (Steward et al 1996). O Inter-Research 1997 At least some of the differences among published reports may be attributed to differences in both the intrinsic toxicity of the various naturally occurring bromophenols and the susceptibility of specific taxa.…”

Section: Introductionmentioning

confidence: 97%

Effect of naturally occurring bromophenols on sulfate reduction and ammonia oxidation in intertidal sediments

Giray¹,

Gm²

1997

Aquat. Microb. Ecol.

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We examined the effect on ammonium oxidation and sulfate reduction of several brominated compounds 14-bromophenol, 2,4-dibromophenol (2,4-DBP), 2,6-dibromophenol and 2,4,6-tribromophenol] that occur naturally in enteropneusts. We compared rates of these processes with and without bromoorganics using bulk intertidal sedirnents and burrow wall sediments from 3 enteropneust species (2 containing 2,4-DBP and 1 containing 2,3,4-tribromopyrrole), a mollusc (Mya arenaria) and a polychaete (Nereis virens). Sulfate reduction in bulk sediment was unaffected by bromophenols at concentrations

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“…They move actively on the sediment surface or burrow into its subsurface layers, feeding and excreting the sedimentary organic and inorganic materials (Fauchald and Jumars, 1979;Lopez and Levinton, 1987). These biological activities have an enormous impact, not only on the reworking of the sediment, but also on the abundance and community structure of microorganisms in the sediment (Dobbs and Guckert, 1988;Steward et al, 1996;Marinelli et al, 2002;Lucas et al, 2003;Papaspyrou et al, 2006). Microbial abundance tends to increase along the inner walls of the burrows (Alongi, 1985;Aller and Aller, 1986;Lucas et al, 2003;Wu et al, 2003;Wada et al, 2006) and around the feces excreted from the animals (Hargrave, 1976;Plante and Wilde, 2001).…”

Section: Introductionmentioning

confidence: 99%

Increase in Alphaproteobacteria in association with a polychaete, Capitella sp. I, in the organically enriched sediment

et al. 2011

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We conducted bioremediation experiments on the organically enriched sediment on the sea floor just below a fish farm, introducing artificially mass-cultured colonies of deposit-feeding polychaete, Capitella sp. I. To clarify the association between the Capitella and bacteria on the efficient decomposition of the organic matter in the sediment in the experiments, we tried to identify the bacteria that increased in the microbial community in the sediment with dense patches of the Capitella. The relationship between TOC and quinone content of the sediment as an indicator of the bacterial abundance was not clear, while a significant positive correlation was found between Capitella biomass and quinone content of the sediment. In particular, ubiquinone-10, which is present in members of the class Alphaproteobacteria, increased in the sediment with dense patches of the Capitella. We performed denaturing gradient gel electrophoresis (DGGE) analyses to identify the alphaproteobacterial species in the sediment with dense patches of the worm, using two DGGE fragments obtained from the sediment samples and one fragment from the worm body. The sequences of these DGGE fragments were closely related to the specific members of the Roseobacter clade. In the associated system with the Capitella and the bacteria in the organically enriched sediment, the decomposition of the organic matter may proceed rapidly. It is very likely that the Capitella works as a promoter of bacteria in the organically enriched sediment, and feeds the increased bacteria as one of the main foods, while the bacteria decompose the organic matter in the sediment with the assistance of the Capitella.

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Microbial biomass and community structures in the burrows of bromophenol producing and non-producing marine worms and surrounding sediments

Cited by 68 publications

References 27 publications

Bioturbating shrimp alter the structure and diversity of bacterial communities in coastal marine sediments

Bioturbating shrimp alter the structure and diversity of bacterial communities in coastal marine sediments

Effect of naturally occurring bromophenols on sulfate reduction and ammonia oxidation in intertidal sediments

Increase in Alphaproteobacteria in association with a polychaete, Capitella sp. I, in the organically enriched sediment

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