Immunological relationship between the hydrophobic fraction of proteose-peptone and the milk fat globule membrane of bovine milk.

The antigenic relationship between the milk fat globule membrane (MFGM) and the hydrophobic fraction of proteose-peptone (HFPP) was demonstrated, using a mono-specific anti-HFPP antibody.

Application of the fluorescent antibody technique to the study of an isolate of Beijerinckia in soil.

Fluorescent antibody was prepared against a temperate-soil isolate of Beijerinckia obtained from a rhizosphere of rice growing in Camargue (France). The antibody did not cross-react with any of 6 species of Azotobacter, 4 species of Beijerinckia, or 44 unidentified soil bacteria isolated from a spectrum of rhizospheres, but strongly stained the homologous Beijerinckia isolate. The isolate grew well in autoclave Camargue soil, but increased in numbers only slightly in nonsterile soil during 9 days.