Metabolic activity and population dynamics of rhizobia introduced into unamended and bentonite-amended loamy sand

Article Abstract:

A comparison of the cumulative amount of carbon dioxide respired by rhizobia in sterile bentonite-amended loamy sand and unamended loamy sand is discussed. Measurements were made over time by using various innoculum densities ranging from 1,000 to 10,000,000,000 per gram of dry soil. Vaiance analysis were performed for each sampling. It was found that the colonization of protective microhabitats were determined by pore shape, waterfilled pre system or by isolated pores.

Analysis, Microbial metabolism, Soil microbiology

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Acetyl coenzyme A acetyltransferase of Rhizobium sp. (Cicer) strain CC 1192

Article Abstract:

Microbiological research indicates that the free-living microorganism Rhizobium sp. (Cicer) strain CC 1192 exhibit condensation activity of acetyle-Coenzyme A acetyltransferase because they contain a specific acetyl-Coenzyme A to CoA ratio. Evidence suggests that the concentration of metabolic labile compounds affects the build up of poly-R-3-hydroxbutyrate reserves.

Nitrogen-fixing microorganisms, Nitrogen-fixing plants

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