Immunofluorescent anti-tubulin staining has been used to follow nuclear progression from dictyate to metaphase II during meiotic maturation of mouse oocytes in vitro. Antibody directed against tubulin isolated from sea-urchin eggs decorates the metaphase I and metaphase II spindles, as well as the cytoplasmic bridge, midbody, and polar body of the maturing mouse oocytes. Changes in the tubulin-...

Jones, Wallis L. (Communicable Disease Center, Atlanta, Ga.), and J. W. Foster. Papain-treated globulins in specific and cross-reacting immunofluorescent staining. J. Bacteriol. 91:984-986. 1966.-Cross-reaction staining with preimmune and specific fluorescein conjugates to Corynebacterium diphtheriae was studied by use of papain-treated antisera. Enzyme-treated antisera were labeled and chromat...

The presence of multiple centrosomes in tumor cells is associated with the formation of multipolar mitotic spindles and results in aneuploidy of both daughter cells. Centrosome amplification is a feature of all cancer cells. We have previously described centrosome amplification in abnormal B cells. Further studies of centrosome amplification in different stages of B lineage development could pr...

Antisera and fluorescein isothiocyanate conjugates prepared for five strains of the Legionnaires bacteria were tested in both homologous and heterologous staining reactions with 10 isolates of the organism from patients in seven geographic areas. The strains were related but not identical as judged by the results of direct immunofluorescence staining. The conjugates were successfully used to de...