Isolation of Frankia from nodules of Casuarina equisetifolia

Abstract
Using the simple serial dilution technique, five strains of actinomycetes were isolated from nodules of Casuarina equisetifolia. In spite of the fact that these strains did not nodulate the host plant, they were assumed to belong to the genus Frankia because they possessed the morphological and cultural characteristics now admitted as specific to this genus.