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Variability of drechslera graminea the causal fungus of leaf stripe of barley

Variability of drechslera graminea the causal fungus of leaf stripe of barley

Acta Phytopathologica et Entomologica Hungarica 23(1-2): 73-80

ISSN/ISBN: 0238-1249

The pathogenic variability of 12 isolates of Drechslera graminea was apparently recorded on 11 barley varieties. The isolates also varied considerably in their cultural characteristics such as rate of mycelial growth, nature of mycelium, colour of colony, pigmentation and mutation. The majority of isolates showed moderate or high rate of growth. Fluffy mycelium and gray colony were recorded more than velvety mycelium and olivaceous colony, respectively. Pigments and mutants were absent in most isolates. Ability of production of pectolytic and cellulolytic enzymes varied in the tested isolates. Only two isolates were unable to produce pectinmethylesterase in synthetic media, whereas all of them produced polygalacturonase and cellulase with noticeably different amounts. The cultural filtrates of D. graminea isolates displayed distinctly different effects on rate of germination of barley seeds and morphologic characters of seedlings.

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Accession: 006890853

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