A specific serum factor was required for rapid phagocytosis of pathogenic staphylococci by human polymorphonuclear leukocytes when the ingestion process was studied in siliconed glass systems and the concentrations of staphylococci were maintained at low levels. In contrast to certain other microbes, the resistance to phagocytosis which characterized pathogenic staphylococci was relative, and p...

viable cell concentration and luminescence activity of p. stutzeri p16 luxab4 was measured byplate counting and luminometery in sterile and non-sterile soil adjusted to matric potential of -1500, -750 and-30 kpa. results showed that matric potential had a significant effect on survival and activity of p. stutzerip16 luxab4 in soil. p. stutzeri p16 luxab4 could survive better in hutner’s minimal...

antibiotic resistance is a public concern, worldwide. the purpose of this study was to survey the antibiotic susceptibility pattern in the microorganisms isolated from the clinical samples in shahid faghihi hospital of shiraz, iran. in this study, the microorganisms were isolated from the blood, bone marrow, pleural fluid, csf and vaginal discharge. antibiotic susceptibility test was performed ...

Birth cohort effects in suicide rates are well established, but to date there is no methodological approach or framework to test the temporal stability of these effects. We use the APC-Detrended (APCD) model to robustly estimate intensity of cohort effects identifying non-linear trends (or 'detrended' fluctuations) in suicide rates. The new APC-Hysteresis (APCH) model tests temporal stability o...

The field of soil biological remediation was initially focused on the use microorganisms. For organic contaminants, biostimulation and bioaugmentation were strategies choice. heavy metals, bioremediation centered feasibility using microorganisms to reduce metal toxicity. Partly due impossibility degrade phytoremediation emerged proposing plants extract them (phytoextraction) or their bioavailab...

Plant-associated microorganisms play an important role in agricultural production. Although various studies have shown that single can exert beneficial effects on plants, it is increasingly evident when a microbial consortium—two or more interacting microorganisms—is involved, additive synergistic results be expected. This occurs, part, due to the fact multiple species perform variety of tasks ...

BACKGROUND The majority of microbial infections in humans are biofilm-associated and difficult to treat, as biofilms are highly resistant to antimicrobial agents and protect themselves from external threats in various ways. Biofilms are tenaciously attached to surfaces and impede the ability of host defense molecules and cells to penetrate them. On the other hand, some biofilms are beneficial f...

Many investigations have been carried out concerning the ability of microorganisms to synthesize vitamin K. These investigations were stimulated by the observation that the vitamin K isolated from fish meal by Almquist and Stokstad (1935) originated from a bacterial contaminant. The subject has been summarized by Peterson and Peterson (1945) who, in comparing various microorganisms for this bio...