A consideration of present views relative to the nature of microbic variation shows several differences of opinion. This study was undertaken in order to obtain further evidence in regard to the nature of variation, which for the past decade has become of interest not only to students of medical bacteriology and public health, but also to workers in the fields of agricultural and industrial bac...

In May 2001, an epizootic yeast and bacterial co-infection in the giant freshwater prawn Macrobrachium rosenbergii occurred in Taiwan causing a cumulative mortality of 25%. The diseased prawns had a yellowish-brown body color, milky hemolymph, opaque, whitish muscles, and were approximately 7 mo old with total lengths ranging from 8 to 10 cm. Histopathological examination showed marked edema, y...

We have isolated from the rumen of the sheep an anaerobic Gram-negative coccus which ferments glucose, fructose, maltose, mannitol, sorbitol and DL-lactate with the production of hydrogen and carbon dioxide, acetate, propionate, n-butyrate, npentanoate and n-hexanoate (Elsden, Gilchrist, Lewis & Volcani, 1951). Since it is our intention to discuss the taxonomic position of this organism in a se...

Phenotypic and phylogenetic studies were performed on two strains of an unidentified Gram-positive, fastidious, non-spore-forming, coccus-shaped bacterium recovered from human blood. The organism was catalase-negative and grew under strictly anaerobic conditions and in the presence of 2 and 6 % O(2). Comparative 16S rRNA gene sequencing demonstrated that the unidentified bacterium was, phylogen...

We studied fungal species associated with the carmine cochineal Dactylopius coccus and other non-domesticated Dactylopius species using culture-dependent and -independent methods. Thirty seven fungi were isolated in various culture media from insect males and females from different developmental stages and Dactylopius species. 26S rRNA genes and ITS sequences, from cultured fungal isolates reve...