Journal ArticleDOI
Evidence for muramic acid in soil
W. N. Millar,L. E. Casida +1 more
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TLDR
The soil muramic acid levels are about 100- to 1000-fold greater than can be accounted for by a platable bacterial population in soil, but are compatible with other estimates of total bacterial soil numbers.Abstract:
Evidence indicative of the presence of muramic acid in soil was demonstrated. Muramic acid values ranging from 0 to 150 μg/g dry weight of soil were obtained for 33 different soil samples. Comparis...read more
Citations
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A physiological method for the quantitative measurement of microbial biomass in soils
TL;DR: The respiratory method provides reproducible estimates of biomass size within 1–3 h after soil amendment, and can be combined without difficulty with a selective inhibition method for determination of bacterial and fungal contributions to soil metabolism.
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Quantitative assessment of the fungal contribution to microbial tissue in soil
TL;DR: This review of literature data indicated that fungi dominated microbial biomass, respiration or non-biomass microbial residues, with mean percentages obtained by the different methodological approaches varying between 35 and 76% in different soil groups, i.e. arable, grassland, and forest soils and litter layers.
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Gas chromatographic determination of muramic acid, glucosamine, mannosamine, and galactosamine in soils
Xudong Zhang,Wulf Amelung +1 more
TL;DR: In this paper, a method was developed to determine the aldononitrile acetate derivatives of the four amino sugars simultaneously in the 6 m HCl hydrolysates of soil samples by means of high resolution gas liquid chromatography.
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Structure and function of the soil microbial community in microhabitats of a heavy metal polluted soil.
Ellen Kandeler,Dagmar Tscherko,Kenneth D. Bruce,M. Stemmer,Phil J. Hobbs,Richard D. Bardgett,Wulf Amelung +6 more
TL;DR: Particle-size fractionation of a heavy metal polluted soil was performed to study the influence of environmental pollution on microbial community structure, microbial biomass, microbial residues and enzyme activities in microhabitats of a Calcaric Phaeocem as mentioned in this paper.
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Equivalence of microbial biomass measures based on membrane lipid and cell wall components, adenosine triphosphate, and direct counts in subsurface aquifer sediments.
TL;DR: Assays of microbial cell components are validated by comparison with the classical direct count in at least one soil/sediment by using conversion factors determined on subsurface microorganism monocultures.
References
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The colorimetric determination of lactic acid in biological material.
S.B. Barker,William H. Summerson +1 more
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Method for the determination of hexosamines in tissues.
TL;DR: During the course of investigations on the metabolism of hexosamines in animal tissues, absorption spectra of the color produced in the hexosamine method of Elson and Morgan revealed the presence of interfering chromogens.
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