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Paper Information

Journal:   ROSTANIHA   2009 , Volume 10 , Number 1 (34); Page(s) 8 To 30.
 
Paper: 

IDENTIFICATION AND PREVALENCE OF ASPERGILLUS SPECIES IN SOILS OF FARS AND KERMAN PROVINCES OF IRAN AND EVALUATION OF THEIR AFLATOXIN PRODUCTION

 
 
Author(s):  MOHAMMADI A.H., BANIHASHEMI Z.A.D.*, HAGHDEL M.
 
* DEPARTMENT OF PLANT PROTECTION, COLLEGE OF AGRICULTURE, SHIRAZ UNIVERSITY, SHIRAZ AND M. HAGHDEL, IRANIAN PISTACHIO RESEARCH INSTITUTE, RAFSANJAN, IRAN
 
Abstract: 

Aspergillus species are major causes of pre- and post-harvest degradation of agricultural products. During 2004-07, the presence and population of Aspergillus species were studied in various fields and orchards of Fars and Kerman Provinces. Soil samples were collected from 0-40 cm depth. Isolates were recovered from soil using modified Czapek, AFPA and SPDA media. Based on macroscopic and microscopic criteria, five sections (Flavi, Nigri, Circumdati, Fumigati, Terrei) and 13 following species were identified: A. alliaceus, A. auricomus, A. carbonarius*,
A. flavus, A. fumigatus, A. japonicus var. japonicus, A. niger var. niger,
A. ochraceus, A. oryzae*, A. parasiticus, A. sclerotiorum, A. sojae and A. terreus. The species with asterisk are new to Iran. SPDA and AFPA were more efficient
for isolation  and enumeration of Aspergillus  colonies  especially aflatoxigenic aspergilli. In Fars Province: A. flavus, A. parasiticus, A. niger var.
A. niger, and in Kerman Province: A. flavus, A. parasiticus and A. niger var.
A. niger were predominant, respectively. In Fars, pistachio orchard and uncultivated soils showed the highest and lowest Aspergillus population, respectively. In Kerman Province, soils collected from Rafsanjan and Zarand had the highest and lowest Aspergillus population, respectively. Out of 20 and 52 isolates of A. flavus obtained from soils in Fars and Kerman Provinces, 14 and 33 isolates produced aflatoxin, respectively.

 
Keyword(s): POPULATION DENSITY, PISTACHIO, MYCOTOXIN
 
References: 
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