摘要
The fluoroehrome DAPI(4’-6-diamidino-2-phenylindole), possessing binding properties with adenine-thymine-rich DNA of various origins, characterized by its high specificity, sensitivity and simplicity has been used for the in situ studies of both cellular and extra-cellular DNA in various prokaryotie and enkaryotic organisms, but it has not yet been used in blue green algae. This note reports the observations on the variations of DNA in the differentiated cells of Anabaena azollae by means of DAPI staining.
