Microbial biomass, respiration and diversity in ultramafic soils of West Dome, New Zealand

Schipper, Louis A.; Lee, W.G.

doi:10.1023/b:plso.0000037027.56794.08

Cited by 29 publications

(18 citation statements)

References 23 publications

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“…In our study, based on the analysis of all soil parameters investigated only ammonifiers were significantly affected by increased available Ni, but P content had an even greater effect on their number in soil. Previous studies suggest that changes in soil microbiological functioning in serpentine soils were more related to the soil organic matter than to Ni concentrations [12,31]. The previous results also indicate that microbial diversity and community structure may be regulated by the availability of critical limiting resources [12,51].…”

Section: Discussionsupporting

confidence: 54%

“…Previous studies suggest that changes in soil microbiological functioning in serpentine soils were more related to the soil organic matter than to Ni concentrations [12,31]. The previous results also indicate that microbial diversity and community structure may be regulated by the availability of critical limiting resources [12,51]. In our research the P content in soil could be a limiting factor for a number of ammonifiers, since the P content in soils investigated is generally low.…”

Section: Discussionmentioning

confidence: 61%

“…Negative effects of metal contamination on soil respiration, microbial biomass, enzyme activities, and microbial community size and diversity have been documented [7][8][9][10][11]. However, the results indicating no differences between polluted and unpolluted sites in terms of biomass, enzymatic activity, or abundance of some groups of microorganisms have also been published [4,[12][13]. The estimated differences could be caused by limited bioavailability of heavy metals and/or resistance developed by the microbial community to chronic high heavy metal concentrations [13], but also by other physical and chemical interactions in the soil, indicating the complexity of heavy metal influence in the ecosystem.…”

mentioning

confidence: 84%

“…None of the microbial parameters (biomass, respiration or respiratory quotient, or diversity) were correlated to the gradient in heavy metals of ultramafic soils, suggesting adaptation by the microbial community to the stress imposed by edaphic conditions [12]. Some studies showed microbial tolerance and adaptation to soil contamination due to the long-term metal exposure and indicated that soil organic matter is a key factor in maintaining high microbial enzyme activities and mitigating metal toxicity [53].…”

Section: Discussionmentioning

confidence: 99%

“…The C/N ratio was favorable in almost all soil samples. The obtained chemical characteristics correspond to typical serpentine soil under the forests [12,19].…”

Section: Soil Properties and Heavy Metal Concentrationsmentioning

confidence: 99%

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Microorganisms in Soils with High Nickel and Chromium Concentrations in Western Serbia

Stajković-Srbinović¹,

Delić²,

Rasulić³

et al. 2017

Pol. J. Environ. Stud.

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Section: Discussionsupporting

confidence: 54%

Section: Discussionmentioning

confidence: 61%

mentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

“…The C/N ratio was favorable in almost all soil samples. The obtained chemical characteristics correspond to typical serpentine soil under the forests [12,19].…”

Section: Soil Properties and Heavy Metal Concentrationsmentioning

confidence: 99%

See 3 more Smart Citations

Microorganisms in Soils with High Nickel and Chromium Concentrations in Western Serbia

Stajković-Srbinović¹,

Delić²,

Rasulić³

et al. 2017

Pol. J. Environ. Stud.

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Effects of triclosan on soil microbial respiration

Butler

Whelan

Ritz

et al. 2011

Environmental Toxicology and Chemistry

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The antimicrobial substance triclosan has widespread use in personal care products and can enter the terrestrial environment if sewage sludge is applied to soil. The inhibitory effects of triclosan on basal and substrate-induced respiration (SIR) of three different soils were investigated. Soils were dosed and later redosed with four nominal triclosan concentrations, and respiration rates were measured over time. In each soil, a significant depression in basal respiration was noted after initial dosing, followed by a recovery. The initial extent of respiration inhibition was positively related to the triclosan dose, i.e., respiration was most inhibited at highest triclosan concentration. Differences in respiration inhibition between soils at equivalent dose were inversely correlated with organic matter and clay content, suggesting that the bioavailability of triclosan might have been reduced by sorption to organic carbon or by physical protection in micropores. Substrate-induced respiration was also reduced by the addition of triclosan and subsequently recovered. After redosing with triclosan, basal respiration was enhanced in all soils, suggesting that it was acting as a substrate. However, redosing resulted in SIR inhibition in all treatments above 10 mg triclosan kg(-1) in all three soils, although all soils appeared to be more resistant to perturbation than following initial dosing. The present study suggests that triclosan inhibits soil respiration but that a subsequent acclimation of the microbial community occurs.

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Microbiological functioning, diversity, and structure of bacterial communities in ultramafic soils from a tropical savanna

Pessoa-Filho

Barreto

Reis

et al. 2015

Antonie van Leeuwenhoek

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Ultramafic soils are characterized by high levels of metals, and have been studied because of their geochemistry and its relation to their biological component. This study evaluated soil microbiological functioning (SMF), richness, diversity, and structure of bacterial communities from two ultramafic soils and from a non-ultramafic soil in the Brazilian Cerrado, a tropical savanna. SMF was represented according to simultaneous analysis of microbial biomass C (MBC) and activities of the enzymes β-glucosidase, acid phosphomonoesterase and arylsulfatase, linked to the C, P and S cycles. Bacterial community diversity and structure were studied by sequencing of 16S rRNA gene clone libraries. MBC and enzyme activities were not affected by high Ni contents. Changes in SMF were more related to the organic matter content of soils (SOM) than to their available Ni. Phylogeny-based methods detected qualitative and quantitative differences in pairwise comparisons of bacterial community structures of the three sites. However, no correlations between community structure differences and SOM or SMF were detected. We believe this work presents benchmark information on SMF, diversity, and structure of bacterial communities for a unique type of environment within the Cerrado biome.

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Microbial biomass, respiration and diversity in ultramafic soils of West Dome, New Zealand

Cited by 29 publications

References 23 publications

Microorganisms in Soils with High Nickel and Chromium Concentrations in Western Serbia

Microorganisms in Soils with High Nickel and Chromium Concentrations in Western Serbia

Effects of triclosan on soil microbial respiration

Microbiological functioning, diversity, and structure of bacterial communities in ultramafic soils from a tropical savanna

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