Glucanolytic Actinomycetes Antagonistic to Phytophthora fragariae var. rubi, the Causal Agent of Raspberry Root Rot.

摘要: A collection of about 200 actinomycete strains was screened for the ability to grow on fragmented Phytophthora mycelium and produce metabolites that inhibit growth. Thirteen were selected, all produced (beta)-1,3-, (beta)-1,4-, (beta)-1,6-glucanases. These enzymes could hydrolyze glucans from cell walls cause lysis cells. also degraded other glucan substrates, such as cellulose, laminarin, pustulan, yeast walls. Eleven significantly reduced root rot index when inoculated raspberry plantlets.