منابع مشابه
Nickel uptake and utilization by microorganisms.
Nickel is an essential nutrient for selected microorganisms where it participates in a variety of cellular processes. Many microbes are capable of sensing cellular nickel ion concentrations and taking up this nutrient via nickel-specific permeases or ATP-binding cassette-type transport systems. The metal ion is specifically incorporated into nickel-dependent enzymes, often via complex assembly ...
متن کاملEnantioselective Utilization of D-Amino Acids by Deep-Sea Microorganisms
Microorganisms that utilize various D-amino acids (DAAs) were successfully isolated from deep-sea sediments. The isolates were phylogenetically assigned to Alphaproteobacteria, Gammmaproteobacteria, and Bacilli. Some of the isolates exhibited high enantioselective degradation activities to various DAAs. In particular, the Alphaproteobacteria Nautella sp. strain A04V exhibited robust growth in m...
متن کاملPathways of nitrogen utilization by soil microorganisms e A review
Microorganisms are able to utilize nitrogen (N) from a wide range of organic and mineral compounds. In this paper, we review the current knowledge about the regulation of the enzyme systems involved in the acquisition of N and propose a conceptual model on the factors affecting the relative importance of organic and mineral N uptake. Most of the N input into soil is in the form of polymers, whi...
متن کاملManganese and Microbial Pathogenesis: Sequestration by the Mammalian Immune System and Utilization by Microorganisms
Bacterial and fungal pathogens cause a variety of infectious diseases and constitute a significant threat to public health. The human innate immune system represents the first line of defense against pathogenic microbes and employs a range of chemical artillery to combat these invaders. One important mechanism of innate immunity is the sequestration of metal ions that are essential nutrients. M...
متن کاملUtilization of inorganic sulfate by rumen microorganisms. I. Incorporation of inorganic sulfate into amino acids.
The ability of rumen microbiota to incorporate inorganic sulfate into cystine and methionine was suggested by Loosli et al. (1949) and demonstrated by Block et al. (1951) through use of radioactive sodium sulfate. The significance of this incorporation as applied to ruminant nutrition has been discussed by Davis et al. (1954). Formation of microbial protein in the rumen of cattle is accompanied...
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ژورنال
عنوان ژورنال: Microbiological Reviews
سال: 1987
ISSN: 0146-0749
DOI: 10.1128/mmbr.51.1.22-42.1987