74 Result(s)
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G. S. De Hoog
Microbiology
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Article
Two new species ofSporothrix and their relation toBlastobotrys nivea
Two new species ofSporothrix are described:S. cyanescens, isolated from human skin andS. fungorum from fungal carpophores. Both species may form secondary blastoconidia; they resembleBlastobotrys nivea in several...
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Article
On the subdivision of the genusCeratocystis
The desirability is discussed of a subdivision of the genusCeratocystis into a group characterized by the presence of a phialidic conidial state, and a group in which the conidia are usually produced exogenously....
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Article
Hyphozyma, a new genus of yeast-like Hyphomycetes
Hyphozyma gen. nov. is characterized by pink, slimy colonies, showing initial-or late-stage budding and hyphae which produce conidia in basipetal succession through inconspicuous lateral openings. The cell walls...
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Article
A new species ofSporothrix from calf skin
An isolate from calf skin lesions is described as the new speciesSporothrix catenata de Hoog et Constantinescu. The fungus produces conidia in relatively long chains, and may show late-stage budding.
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Article
Dimorphic behaviour and taxonomy ofTrichosporiella sporotrichoides
Three strains ofTrichosporiella sporotrichoides van Oorschot showed divergent reactions to suspension plating. A comparison was made with other yeast-like fungi and some descriptive terms were redefined or introd...
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Article
A new species of Anthopsis
Anthopsis catenata sp. nov., isolated from roots of Abies alba is described. The species is characterised by inverted phialides producing pale brown, ellipsoidal to subglobose conidia in chains.
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Article
Deoxyribonucleic acid base composition and taxonomy of Moniliella and allied genera
DNA base compositions of representative (type) strains of Moniliella, Trichosporonoides and Hyalodendron were determined. Within Trichosporonoides over 16% variance was found. Most species separated well, but M. ...
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Article
Phialophora cyanescens sp. nov. with Phaeosclera-like synanamorph, causing white-grain mycetoma in man
The human-pathogenic fungus, Phialophora cyanescens sp. nov. is characterized by the abundant production of chlamydospore-like cell aggregates resembling the form-genus Phaeosclera Sigler et al., and by elongate ...
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Article
Morphological taxonomy of little-differentiated Hyphomycetes
Morphological taxonomy of simple Hyphomycetes is complicated by the frequent occurrence of pleoanamorphism. In some groups of yeast-like fungi, uncommon synanamorphs are diagnostic. Differences in conidiogenes...
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Article
Carbohydrate patterns and taxonomy of Sporothrix and Blastobotrys
Within the hyphomycete genus Sporothrix Hektoen & Perkins three distinct groups are recognized on the basis of carbohydrate patterns. In the first group, and in Blastobotrys Klopotek, mannose is predominant while...
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Article
Blastobotrys, Sporothrix and Trichosporiella: generic delimitation, new species, and a Stephanoascus teleomorph
The morphological and physiological characters of the species of Blastobotrys, and of a number of similar species of Sporothrix, Trichosporiella and Candida were studied. Blastobotrys is defined as having mother ...
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Article
Key to the species of Hyphozyma (yeast-like Hyphomycetes) and description of H. roseonigra sp. nov.
The new species, Hyphozyma roseonigra, characterized by pink colonies, budding cells with minute annellated zones and brown, septate hyphae, is described. It is non-fermentative, shows no colouration with Diazoni...
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Article
A new species of Cyphellophora
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Article
Carbon assimilation and extracellular antigens of some yeast-like fungi
Many yeast-like fungi assimilated n-hexadecane, butylamine and putrescine as sole carbon sources. Methanol was not assimilated. This points to a physiological similarity to endomycetous, hydrocarbon-utilizing yea...
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Article
On the variability of Ophiostoma piceae
The morphology and cultural characteristics of Ophiostoma piceae were described on the basis of 22 strains from the CBS collection supplemented with 25 fresh isolates from Poland, mostly from necrotic parts of Qu...
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Article
Coenzyme Q systems in ascomycetous black yeasts
72 Strains belonging to 44 species of ascomycetous black yeasts were analyzed for their coenzyme Q systems. Prevalent were Q-10 and dihydrogenated Q-10 systems. Members of the Dothidealean suborder Dothideinea...
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Article
Electrophoretic protein patterns of Geotrichum and its teleomorphs
Total patterns of water-soluble proteins of 35 strains (7 species) of Galactomyces and Dipodascus strains with their respective Geotrichum anamorphs are compared. Quantitative differences among a number of specie...
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Article
Capnobotryella renispora on roof tile
Capnobotryella renispora J. Sugiyama is described from a specimen on roof tile and in culture. Its relationship with the black yeasts is discussed.
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Article
Karyology and the possible function of the dual conidia ofDissoconium (Hyphomycetes)
The morphological development and nuclear behaviour of two species ofDissoconium are described. The fungi are monokaryotic in all stages of their life cycle. Liberated pairs of conidia may form anastomoses, proba...
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Article
Karyology and hyphal characters as taxonomic criteria in Ascomycetous black yeasts and related fungi
Mycelial development of seventy-three strains of black yeasts and related fungi were studied, and numbers of nuclei per hyphal cell were counted. Two main patterns were apparent in expanding hyphae, viz. (1) u...
