IsArthroderma benhamiaethe perfect state ofTrichophyton mentagrophytes?

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Abstract
Of 8 isolates of T. mentagrophytes and 2 of T. interdigitale none was compatible with A. benhamiae + or -. A fertile mating between 2 T. mentagrophytes isolates enabled us to obtain numerous single ascospore isolates. Mating experiments with these isolates, their parent strains and the other isolates of T. mentagrophytes studied, revealed incompatibility between some strains of opposite type. None of the single ascospore isolates was compatible with A. benhamiae + or -, but fertile cleistothecia were obtained in matings with 2 of the other T. mentagrophytes isolates. These results and the study of the morphology suggest that there may be at least one perfect species other than A. benhamiae in the T. mentagrophytes complex.