Paper Information

Journal:   IRANIAN JOURNAL OF PLANT PATHOLOGY   July 2002 , Volume 38 , Number 1-2; Page(s) 1 To 10.
 
Paper: 

BROWN BLOTCH DISEASE OF CULTIVATED MUSHROOM (AGARICUS BISPORUS) IN IRAN

 
 
Author(s):  KHABAZ JOLFAEI H., RAHIMIAN H.
 
* 
 
Abstract: 

Brown blotch of cultivated mushroom (Agaricus bispoms) has become a major and widespread disease of the crop in mushroom growing facilities throughout Iran. Disease symptoms, as brown, sunken lesions and blotches appear on pilei and stipes in all stages of mushroom growth, during shipment and in the retail market. In severely affected mushrooms and under favorable conditions, the lesions enlarge coalesce and encompass the entire surface of the caps. The rotted mushrooms assume a slimy appearance. A fluorescent oxidase and arginine dihyolrdase positive pseudomonad was isolated from the diseased mushrooms. The identity of the strains as Pseudomonas tolaasii was verified through phenotypic characterization, proof of pathogen city and the white-line reaction with pseudomonas reactans. The strains differed in virulence and were placed in four virulence groups.

 
Keyword(s): BROWN BLOTCH, PSEUDOMONAS TOLAASII, AGARICUS BISPORUS, MUSHROOM
 
References: 
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