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	Provedor de dados Naturalis (5) Autor Schipper, M.A.A. (5) Stalpers, J.A. (3) Tipo do documento Article / Letter to the editor (5) Ano 1990 (1) 1986 (1) 1983 (1) 1980 (2) País Netherlands (5)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 5 Primeira ... 1 ... Última Notes on Zygorhynchus species Naturalis Schipper, M.A.A.. An account is given of species of Zygorhynchus maintained in the CBS collection, with emphasis on zygospore formation. A key to species is added. Tipo: Article / Letter to the editor Ano: 1986 URL: http://www.repository.naturalis.nl/record/532155 Various aspects of the mating system in Mucorales Naturalis Schipper, M.A.A.; Stalpers, J.A.. Several aspects of the sexuality in Mucorales are discussed. It is stated that neither heterothallism nor homothallism are absolute conditions and that a continuum exists between zygospores and azygospores. Mating type switching as known in ascomycetous yeasts would explain several up to now inexplicable phenomena. Tipo: Article / Letter to the editor Ano: 1980 URL: http://www.repository.naturalis.nl/record/532344 Notes on Mucorales—I. Observations on Absidia Naturalis Schipper, M.A.A.. An account is given of species of Absidia maintained in the CBS collection. Cultures were studied on the basis of morphology, temperature relations and mating results. Synonymy is concluded for A. atrospora, A. griseola, and A. hyalospora with A. blakesleeana; A. hesseltinei with A. corymbifera. Mating activity was strong in the subgenus Mycocladus, weak or absent in the subgenus Absidia, under the test condition. A key to the species is included. Tipo: Article / Letter to the editor Ano: 1990 URL: http://www.repository.naturalis.nl/record/531621 Comparison of Zygospore ornamentation in intra- and interspecific matings in some related species of mucor and Backusella Naturalis Stalpers, J.A.; Schipper, M.A.A.. Zygospores resulting from intraspecific matings of Mucor amphibiorum, M. inaequisporus, M. indicus, M. recurvus, M. variosporus, Backusella circina, and B. lamprospora are compared with azygospores (zygospores) formed in matings of Mucor amphibiorum strain CBS 764.74 and strains of the other species by means of scanning electron microscopy. In general zygospores in interspecific matings cease to develop at an earlier stage than those of intraspecific matings. No proof could be obtained for our hypothesis that M. amphibiorum strain CBS 764.74 merely initiated a process of azygospore formation. Tipo: Article / Letter to the editor Ano: 1980 URL: http://www.repository.naturalis.nl/record/531712 Spore ornamentation and species concept in Syncephalastrum Naturalis Schipper, M.A.A.; Stalpers, J.A.. Morphological studies and mating experiments indicate the synonomy of Syncephalastrum verruculosum and S. racemosum. The ornamentation of the sporangiospores is due to folds of the merosporangial wall. It is highly variable and cannot be used for species delimitation. Tipo: Article / Letter to the editor Ano: 1983 URL: http://www.repository.naturalis.nl/record/531851 Registros recuperados: 5 Primeira ... 1 ... Última

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