Comparison of different microbial biomass and activity measurement methods in metal-contaminated soils

Barajas-Aceves, Martha

doi:10.1016/j.biortech.2004.09.013

Cited by 43 publications

(17 citation statements)

References 33 publications

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“…About 19% reduction in microbial biomass C was observed with the addition of metal contaminated sewage sludge at 80 t ha 71 . The results are well correlated with the findings of Barajas-Aceves (2005) and Liao and Xie (2007) who reported that soil microbial biomass was negatively affected by comparatively high heavy metal levels. Zeng et al (2007) also found that the additions of six levels of Pb 0, 100, 300, 500, 700, 900 mg kg 71 soil had a stimulating effect on soil microbial biomass carbon at low concentration and had an inhibitory effect at higher concentrations.…”

Section: Discussionsupporting

confidence: 93%

Effect of heavy metal contaminated sewage sludge on soil microbiological properties and growth of Indian mustard

Walia

Goyal

2010

Archives of Agronomy and Soil Science

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A laboratory incubation and pot experiment were carried out to study the effect of amendment of uncontaminated and metal contaminated sewage sludge on soil microbial biomass carbon (C), soil enzyme activities and growth of Indian mustard in a sandy loam soil. The application of metal contaminated sewage sludge containing chromium (Cr) (2400 mg kg 71 ), nickel (Ni) (400 mg kg 71 ) and lead (Pb) (2400 mg kg 71 ) had a detrimental effect on soil microbial biomass C and soil enzyme activities at different levels. Metals present in sewage sludge inhibited the microbial biomass carbon by 5.6-19.0% at different levels after 90 days of incubation. Dry matter yield, uptake of nitrogen (N), phosphorus (P) and potassium (K) increased significantly with the increasing levels of uncontaminated sewage sludge, whereas, amendment of metal contaminated sewage sludge at the levels of 40 and 80 t ha 71 decreased the growth of Indian mustard. The accumulation of Cr, cadmium (Cd), Ni and Pb was 997, 36, 793 and 620 mg kg 71 , respectively, in the shoots of Indian mustard. Sewage sludge contaminated with metals Cr, Ni, and Pb at double the EU limits showed adverse effect on soil microbiological activities and growth of Indian mustard.

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Section: Discussionsupporting

confidence: 93%

Effect of heavy metal contaminated sewage sludge on soil microbiological properties and growth of Indian mustard

Walia

Goyal

2010

Archives of Agronomy and Soil Science

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“…Each sample was thoroughly mixed manually, after which the jars were sealed and left for two weeks as a conditioning incubation to allow microbial activity to stabilize before any readings were taken. Aerobic conditions were ensured by opening the jars for 2 h each week to allow replenishment of oxygen [11].…”

Section: Microbial Respiration In Metal Spiked Organic Materialsmentioning

confidence: 99%

“…Microbial biomass in highly metal contaminated soils has been found to be consistently lower than in uncontaminated or low metal conditions [11]. On the other hand, 'moderate' metal levels may have no significant effect, or a mild stimulatory effect, on microbial processes [12,13].…”

Section: Introductionmentioning

confidence: 99%

Microbial respiration as an indication of metal toxicity in contaminated organic materials and soil

Nwachukwu

Pulford

2011

Journal of Hazardous Materials

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“…Total Cu, Fe, Mn and Zn concentration in the insects were measured in the flame atomic absorption spectrometry (Avanta M System 300 GF 3000 S/N 10288). Prior to analysis the samples were filtered to remove impurities and any undigested material (Barajas-Aceves 2005). …”

Section: Methodsmentioning

confidence: 99%

Conserved metallomics in two insect families evolving separately for a hundred million years

et al. 2014

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Μetal cofactors are required for enzymatic catalysis and structural stability of many proteins. Physiological metal requirements underpin the evolution of cellular and systemic regulatory mechanisms for metal uptake, storage and excretion. Considering the role of metal biology in animal evolution, this paper asks whether metal content is conserved between different fruit flies. A similar metal homeostasis was previously observed in Drosophilidae flies cultivated on the same larval medium. Each species accumulated in the order of 200 µg iron and zinc and approximately ten-fold less manganese and copper per gram dry weight of the adult insect. In this paper, data on the metal content in fourteen species of Tephritidae, which are major agricultural pests worldwide, are presented. These fruit flies can be polyphagous (e.g., Ceratitis capitata) or strictly monophagous (e.g., Bactrocera oleae) or oligophagous (e.g., Anastrepha grandis) and were maintained in the laboratory on five distinct diets based on olive oil, carrot, wheat bran, zucchini and molasses, respectively. The data indicate that overall metal content and distribution between the Tephritidae and Drosophilidae species was similar. Reduced metal concentration was observed in B. oleae. Feeding the polyphagous C. capitata with the diet of B. oleae resulted in a significant quantitative reduction of all metals. Thus, dietary components affect metal content in some Tephritidae. Nevertheless, although the evidence suggests some fruit fly species evolved preferences in the use or storage of particular metals, no metal concentration varied in order of magnitude between these two families of Diptera that evolved independently for over 100 million years.

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Comparison of different microbial biomass and activity measurement methods in metal-contaminated soils

Cited by 43 publications

References 33 publications

Effect of heavy metal contaminated sewage sludge on soil microbiological properties and growth of Indian mustard

Effect of heavy metal contaminated sewage sludge on soil microbiological properties and growth of Indian mustard

Microbial respiration as an indication of metal toxicity in contaminated organic materials and soil

Conserved metallomics in two insect families evolving separately for a hundred million years

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