Results 271 to 280 of about 2,722,430 (321)

Microbial degradation of explosives: biotransformation versus mineralization

Applied Microbiology and Biotechnology, 2000
The nitroaromatic explosive 2,4,6-trinitrotoluene (TNT) is a reactive molecule that biotransforms readily under both aerobic and anaerobic conditions to give aminodinitrotoluenes. The resulting amines biotransform to give several other products, including azo, azoxy, acetyl and phenolic derivatives, leaving the aromatic ring intact.
Hawari, J., Beaudet, S., Halasz, A., Thiboutot, S., Ampleman, G.   +4 more
openaire   +3 more sources

Interactions between biochar and nitrogen impact soil carbon mineralization and the microbial community

, 2020
Adding biochar (BC) to soils is proposed to enhance carbon sequestration in agricultural soils. However, there is limited knowledge regarding the effects of the interactions between BC and nitrogen (N) on soil organic carbon (SOC) mineralization at an ...
Shuailing Li, Shuo Wang, Miao-Chun Fan, Yang Wu, Zhou-Ping Shangguan   +4 more
semanticscholar   +1 more source

EFFECTS OF METALS ON THE MICROBIAL MINERALIZATION OF ORGANIC ACIDS

Water, Air, and Soil Pollution, 1997
The effects of chemical speciation on mineralization of organic compounds was studied using citric acid as a model substance. The degradation of14C-labeled Al-, Co-, Cu-, and Zn-citrate was followed in chemically well-defined media inoculated with mixed cultures of microorganisms (soil extracts from two soils). The degradation of citrate was completely
Lena Brynhildsen, Thomas Rosswall
openaire   +1 more source

Mineralization of organic carbon and formation of microbial biomass in soil: Effects of clay content and composition and the mechanisms involved

, 2020
Mineralization of soil organic carbon and CO2 emission from the soil is slowed by interactions between organic matter and minerals. The main minerals involved are clay minerals and oxides but there is limited understanding of their effects when combined,
F. Rakhsh, A. Golchin, A. Beheshti-Alagha, P. Nelson   +3 more
semanticscholar   +1 more source

Microbial Formation and Degradation of Minerals

1964
Publisher Summary This chapter discusses the microbial formation and degradation of minerals in detail. It has been characteristic of microbiology and other disciplines that the tempo of man's research activities has been in direct proportion to his needs and his welfare. Thus, the diseases of man received early are stressed by microbiologists. Man's
Melvin P. Silverman, Henry L. Ehrlich
openaire   +1 more source

Humus composition of mineral–microbial residue from microbial utilization of lignin involving different mineral types

Canadian Journal of Soil Science, 2019
This study explored the mineral contribution of lignin to humus (HS) formation through the change of HS composition in microbial–mineral residue (MMR). The liquid shake flask culture method was adopted to collect the MMR formed through the microbial utilization of lignin in the presence of goethite, bayerite, δ-MnO2, kaolinite, and montmorillonite ...
Wang, Shuai, Chen, Dianyuan, Zhang, Xi, Xu, Junping, Lei, Wanying, Zhou, Changyan, Chen, Chen, Li, Fanghui, Wang, Nan   +8 more
openaire   +1 more source

Microbial Mineralization of 2,4,5-Trichlorophenol in Soil

Environmental Science & Technology, 1996
Chlorophenols may be present in soils by land application of biocides or chlorophenol- and chloroguaiacol-containing sludges from pulp bleaching effluent treatment. Polychlorophenols like 2,4,5-trichlorophenol (2,4,5-TCP) are priority pollutants resistant to biodegradation. In this work, the mineralization (14CO2 evolution) of [U-14C-2,4,5]-TCP in soil
Valeria Matus, Mónica Vásquez, MatÍas Vicente, Bernardo González   +3 more
openaire   +2 more sources

Microbial mineralization of organic phosphate in soil

Plant and Soil, 1984
Phosphate-dissolving microorganisms were isolated from non-rhizosphere and rhizosphere of plants. These isolates included bacteria, fungi and actinomycetes. In broth cultures, Gram-negative short rod,Bacillus andStreptomyces species were found to be more active in solubilizing phosphate thanAspergillus, Penicillium, Proteus, Serratia, Pseudomonas ...
M. A. Z. Molla, A. A. Chowdhury, A. Islam, S. Hoque   +3 more
openaire   +1 more source

Microbial stoichiometric flexibility regulates rice straw mineralization and its priming effect in paddy soil

Soil Biology and Biochemistry, 2018
Nitrogen (N) and phosphorus (P) availability plays a crucial role in carbon (C) cycling in terrestrial ecosystems. However, the C:N:P stoichiometric regulation of microbial mineralization of plant residues and its impact on the soil priming effect (PE ...
Zhen-Ke Zhu, T. Ge, Yu Luo, Shou-Long Liu, Xing-Liang Xu, Cheng-Li Tong, O. Shibistova, G. Guggenberger, Jin-Shui Wu   +8 more
semanticscholar   +1 more source

Microbial mineral maricultures, a possibility?

Aquaculture, 1972
Abstract The theory of submarine soil formation, especially the role of microbial activity in this type of soil formation, seems to open the possibility of using controlled microbial cultures in order to concentrate certain minerals and ores. After discussing in some detail processes of submarine concentration of ore compounds, the microbial aspects
openaire   +1 more source