Cryptococcus neoformans biofilm formation depends on surface support and carbon source and reduces fungal cell susceptibility to heat, cold and UV light

Article Abstract:

A microtiter plate model, microscopic examinations and a colorimetir 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-5-[(phenylamino) carbonyl]-2H-tetrazolium-hydroxide (XTT) reduction assay is used to observe the metabolic activity of cryptococci within a biofilm. It is demonstrated that the fungal biofilm formation depends on support surface characteristics and the growth in the biofilm state makes fungal cells less susceptible to potential environmental stress.

Analysis, Environmental aspects, Genetic aspects, Ecological stress

---

Induction by Klebsiella aerogenes of a melanin-like pigment in Cryptococcus neoformans

Article Abstract:

Cryptococcus neoformans are normally white but while carrying out studies of the interaction of Dictyostelium discoideum and C. neoformans in a lawn of feeder Klebsiella aerogenes, it was noticed that fungal colonies near the bacterial colonies were brown. This illustrates that a remarkable interaction takes place between a pathogenic fungus and a gram negative bacterium in which the bacterium produces a substrate that promotes fungal melanization.

Science & research, Melanin

---

Metabolism of melamine by Klebsiella terragena

Article Abstract:

The metabolism of melamine by Klebsiella terragena was examined to determine its pathway and the effect of added NH4+ on the rates and coverage of melamine metabolism. The study used separate incubations where cells were grown in ammeline or ammelide. Results suggest that K. terragena is a useful inoculant in conjunction with melamine as a fertlizer as a result of lack of NH4+ inhibition of melamine metabolism.

Metabolism, Melamine

Similar abstracts:

• Abstracts: Effects of artificial defoliation of pines on the structure and physiology of the soil fungal community of a mixed pine-spruce forest
• Abstracts: Selecting lactic acid bacteria for their safety and functionality by use of a mouse colitis model. Application of measurements of transepithelial electrical resistance of intestinal epithelial cell monolayers to evaluate probiotic activity
• Abstracts: Correlation of biological activity and reactor performance in biofiltration of toluene with the fungus Paecilomyces variotii CBS115145
• Abstracts: The identification of two novel ligands of the FGF receptor by a yeast screening method and their activity in Xenopus development
• Abstracts: RAGE mediates a novel proinflammatory axis: a central cell surface receptor for S100/calgranulin polypeptides

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.