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The sexual state of Aspergillus parasiticus

     ¹ ARS, USDA, Dawson, GA, 39842-0509, United States of America
² Centro de Investigacion Cientifica de Yucatan, Merida, Yucatan, Mexico
³ Dept of Plant Pathology, North Carolina Univ, Box 7567 - Partners II Bldg, Raleigh, NC, 27695-7567, United States

The sexual state of Aspergillus parasiticus, a potent aflatoxin-producing fungus within section Flavi, is described. The production of nonostiolate ascocarps surrounded by a separate peridium within the stroma places the teleomorph in the genus Petromyces. Petromyces parasiticus differs from P. alliaceus by its larger ascospores with finely tuberculate ornamentation. The anamorphic Aspergillus states of the two species differ in conidial head color and microscopic characters.

Key words: Aspergillus alliaceus, heterothallism, Petromyces alliaceus, Petromyces parasiticus, sexual reproduction, Trichocomaceae

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