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Investigation of a Great Number of Actinomycete Isolates on Their Antagonistic Effects Against Soil‐Borne Fungal Plant Pathogens by an Improved Method
Author(s) -
Turhan Gülay,
Grossmann F.
Publication year - 1986
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1986.tb00916.x
Subject(s) - rhizoctonia solani , sclerotinia sclerotiorum , alternaria alternata , macrophomina phaseolina , biology , rhizoctonia , agar , horticulture , agar plate , microbiology and biotechnology , botany , bacteria , genetics
By means of a modified agar‐ring method, the antibiotic efficacy of 300 isolates of actinomycetes, obtained from soil samples from Turkey, against six different test fungi was investigated. A wide range in their degree of sensitivity was evident. Whereas Sclerotinia sclerotiorum was completely inhibited by more than 90 % of the tested isolates, Rhizoctonia solani and Alternaria alternata were suppressed by only 17 and 14 %, respectively; Pythium debaryanum, Cochliobulus sativ, us and Macrophomina phaseolina held an intermediate position. Isolates which completely prevented the growth of Rhizoctonia solani and Alternaria alternata , were usually also highly effective against the other test fungi. Possible conclusions which may be drawn from these results are discussed.