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Variation in pathogenicity of isolates of Cercospora spp. attacking Heliotropium spp.
Author(s) -
BRUN L.,
SHEPPARD A W.,
LOPES V.
Publication year - 1996
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1996.tb07115.x
Subject(s) - cercospora , biology , pathogenicity , taxonomy (biology) , botany , leaf spot , fungi imperfecti , blight , microbiology and biotechnology
Summary The pathogenicity of a set of 13 Cercospora samples collected in France, Turkey and Australia from four Heliotropium species has been evaluated with a detached leaf technique. All of five Euro‐Asian Heliotropium species tested were susceptible to all Cercospora species isolates. However, variation in the degree of partial resistance to different isolates was observed and showed some similarity for isolates from the same region of origin. Further studies are required to clarify the taxonomy of Cercospora blight strains, but the consequences of the noted differences in pathogenicity are discussed in relation to the biological control ofH. europaeum L. in Australia.