Keratinolytic microorganisms have become the subject of scientific interest due to their ability to biosynthesize specific keratinases and their prospective application in keratinic waste management. Among several bacterial classes, actinobacteria remain one of the most important sources of keratin-degrading strains, however members of the Micrococcaceae family are rarely scrutinized in regard ...

The comparative pharmacokinetic profile of cefquinome was studied in sheep and goats following repeated intramuscular (IM) administrations of 2 mg/kg body weight. Cefquinome concentrations in serum were determined by microbiological assay technique using Micrococcus luteus (ATCC 9341) as test organism. Following intramuscular injection of cefquinome in sheep and goats, the disposition curves we...

all behaved similarly (i.e., the organism tested exhibited a relatively consistent high respiratory activity in their presence). The finding of serum-inhibitors (bactericidins) dates back to the early days of microbiology (see review of Skarnes and Watson [4]). However, it appears that specific studies on the inhibitory activity of sera from patients afflicted with leukemia have not been report...

The problem of complex polynucleotide synthesis has received considerable attention from numerous investigators (l-3). Grunberg-Manago and Ochoa (4) and Kornberg, Lehman, and Simms (5) first successfully demonstrated the polymerization in vitro of riboand deoxynucleotides with cell-free extracts from microorganisms. Subsequent studies on the synthesis of ribonucleic acid and deoxyribonucleic ac...

OBJECTIVES To measure the antimicrobial activities of three series of homologous, dendritic tricarboxylato (three-headed) amphiphiles against a battery of bacteria and fungi. METHODS Three series of homologous dendritic amphiphiles were synthesized containing C13 to C22 fatty chains. Susceptibility of Escherichia coli, Klebsiella pneumoniae, Lactobacillus plantarum, Micrococcus luteus, Staphy...

Eagon, R. G. (University of Georgia, Athens). Bacterial dissimilation of l-fucose and l-rhamnose. J. Bacteriol. 82:548-550. 1961.-Of 33 microorganisms screened for the ability to utilize the methylpentoses, l-fucose and l-rhamnose, 18 species utilized one or both methylpentoses. The majority of the bacterial species capable of utilizing these methylpentoses did so by isomerization of the methyl...

By using meterological rockets fitted with specially designed analyzers, samples for microbiological investigation have been taken. The analyzer design prevented extraneous microorganisms from penetrating into the analyzer. Before being used, the analyzers were sterilized with high gamma-ray doses. For the first time microorganisms have been detected in the mesosphere at an altitude of 48 to 77...

Arithmetic linear growth has been defined by Fisher et al. (1951) as a prolonged growth phase in which bacterial density increases as a straight line function of time. Fisher and Kirchheimer (1952) found this type of growth in 15 different strains of mycobacteria and proposed that arithmetic linear growth is a characteristic feature of members of the genus Mycobacterium. They suggested this phe...

The natural ability of microorganisms for adhesion and biofilm formation on various surfaces is one of the factors causing the inefficiency of a disinfection agent, despite its proven activity in vitro. The aim of the study was to determine the effectiveness of disinfecting substances on bacterial biofilms formed on stainless steel surface. A universally applied disinfecting agent was used in t...

A colony of a yellow pigment forming, nonhemolytic Micrococcus species (tentatively identified as Micrococcus luteus) was found on a human blood agar plate close to a hemolytic staphylococcal colony. It was also noted that the zone of hemolysis of this Staphylococcus (the term Micrococcus is not used here for this organism to avoid confusion with the other) was slightly but definitely indented ...