Diversity and differentiation among fluorescent pseudomonads in crop rhizospheres with whole-cell protein profiles.

Fluorescent pseudomonads from rhizospheres of four different crops, grown under similar soil and climatic conditions were phenotypically characterized to differentiate them into biovars. In protein electrophenogram studies of relationships among fluorescent pseudomonads by UPGMA cluster analysis based on DICE similarity index, the isolates were mainly discerned into three major clusters representing four different biovars. The biovars generally matched the delineated phenotypic clusters with the exception of a strain belonging to biovar II.

Extracellular chitinases of fluorescent pseudomonads antifungal to Fusarium oxysporum f. sp. dianthi causing carnation wilt.

Vascular wilt of carnation caused by Fusarium oxysporum f. sp. dianthi (Prill.