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TOXIGENIC FUNGI ISOLATED FROM LATE‐SEASON PECANS
Author(s) -
WELLS JOHN M.
Publication year - 1980
Publication title -
journal of food safety
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 43
eISSN - 1745-4565
pISSN - 0149-6085
DOI - 10.1111/j.1745-4565.1980.tb00398.x
Subject(s) - alternaria alternata , alternaria , cladosporium , penicillium , biology , fusarium , penicillium citrinum , aspergillus , botany , mycotoxin , rhizopus , curvularia , aspergillus niger , horticulture , food science , fermentation
Of 1978 fungal colonies isolated on malt‐salt agar from twenty 5‐kg samples of pecans harvested late in the season, 39% were Cladosporium, 21% were Penicillium, 9% were Alternaria or Epicoccum, 8% Pestalotia or Monochaeta, 4% Trichothecium, 4% Aspergillus niger, and less than 2% were Fusarium, Phomopsis, Rhizopus, Aspergillus, and miscellaneous genera. Forty‐four of 260 representative isolates were persistently toxic to day‐old cockerels. Toxigenic Penicillium spp. included P. citrinum, P. terrestre, P. cyclopium, P. funiculosum, P. roquefortii, P. purpurogenum, P. rubrum, and P. rugulosum. Toxigenic isolates of other genera included Aspergillus fiavus, A. cervinus, Alternaria alternata, Trichothecium roseum, Pestalotia sp., and Fusarium spp. Additional key words are Carya illinoensis, mycotoxins.