The mycocinogenous strain Tilletiopsis flava VKM Y-2823 was found to possess fungicidal activity at pH 3.5-4.5, which was retained after curing the strain by eliminating the extrachromosomal genetic elements. The mycocin produced by the strain had a molecular mass of more than 10 kDa and was readily inactivated by heating and treatment with protease K. This mycocin was found to be active against species of the anamorphic genus Tilletiopsis. The overwhelming majority of other representatives of the order Tilletiales, as well as ascomycetous and basidiomycetous yeasts, which either form or did not from ballistospores of the orders Sporidiales and Tremellales, were resistant to it.
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Tilletiopsis derxii, Tilletiopsis oryzicola and Tilletiopsis penniseti, three new species of the ustilagionomycetous anamorphic genus Tilletiopsis isolated from leaves in Thailand.
Antonie Van Leeuwenhoek
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Japan Collection of Microorganisms, RIKEN The Institute of Physical and Chemical Research, Wako, Saitama.
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Mikrobiologiia
July 2001
All-Russia Collection of Microorganisms, Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, pr. Nauki 5, Pushchino, Moscow Oblast, 142290 Russia.
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Japan Collection of Microorganisms, Institute of Physical and Chemical Research (RIKEN), Saitama, Japan.
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