Results 121 to 130 of about 1,419 (162)

Infections Due to the Dimorphic Fungi

1996
The thermally dimorphic fungi grow as molds in the natural environment or in the laboratory at 25–30°C, and as yeasts or spherules in tissue or when incubated on enriched media at 37 °C. They include the agents of the endemic systemic mycoses prevalent in the Western Hemisphere, i.e., Coccidioides immitis, Histoplasma capsulatum, Blastomyces ...
Stuart M Levitz
exaly   +2 more sources

Protective Antibodies and Endemic Dimorphic Fungi

Current Molecular Medicine, 2005
The host response to infection is the outcome of a complex interaction between a microbe and a host's innate and adaptive immune system. In this context, the role of antibody in the endemic mycoses is relatively poorly understood. Recently, a monoclonal antibody to a cell surface protein has been shown to be protective in a murine histoplasmosis model.
openaire   +2 more sources

The morphogenesis of the parasitic forms of dimorphic fungi

Mycopathologia et Mycologia Applicata, 1962
Specific consideration has been given in this review to the sequence of morphologic events which characterize the transformation of dimorphic pathogenic fungi from the saprophytic to the parasitic phase of growth. Three general mechanisms of conversion have been described for those dimorphic fungi which exist in the tissues of a host as blastospores:
openaire   +2 more sources

The Genetics of Dimorphism in the Smut Fungi

1993
Dimorphic growth in Ustilago maydis is regulated by mating-type loci called a and b. The b region encodes two polypeptides (bE and bW) which control the formation of the infectious dikaryon upon fusion of haploid, yeast-like cells of opposite a mating type.
J. Kronstad, A. Yee, G. Bakkeren, S. Gold, K. Barrett, L. Giasson   +5 more
openaire   +1 more source

[Dimorphism of fungi - review of the literature].

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abteilung: Mikrobiologie der Landwirtschaft der Technologie und des Umweltschutzes, 1983
A recherche of 260 publications about dimorphism of fungi was elaborated. Beginning with the term dimorphism of fungi a description was represented of the distribution in the classes of the fungi, the ontogenesis of both types of the growth, the habits of dimorphic species of fungi, the conditions of the cultivation for the induction and maintenance of
openaire   +2 more sources

[Dimorphism in fungi--a gray zone for taxonomy?].

Zentralblatt fur Mikrobiologie, 1989
Dimorphic fungi can grow as mycelial phase and as yeast phase. The change of growth form is effected by an altered programme in gene expression, which is induced either in certain stages of ontogenesis or by environmental factors. Therefore it is necessary to distinguish ontogenetically conditioned (irreversible) and environment conditioned (reversible)
H, Kreisel, F, Schauer
openaire   +2 more sources

[The role of sterols in morphogenetic processes and dimorphism in fungi].

Mikrobiologiia, 2007
The review considers the fundamental biological problem of fungal dimorphism as an adaptive reaction to adverse impacts. Primary attention is paid to sterols, phospholipids, storage lipids, and fatty acids. The structural and biological functions of sterols are considered, as well as their role in membrane stabilization under stress and their relation ...
I S, Mysiakina, N S, Funtikova
openaire   +3 more sources

[Dimorphic fungi: biochemical approach to their dimorphism].

Acta cientifica venezolana, 1998
Dimorphism in pathogenic fungi is reviewed. The phenomenon is divided into four interwoven events: (a) perception of external stimuli by cellular sensors; (b) translation into a biochemical message; (c) alteration of the genomic expression, and (d) structural reorganization towards the morphological change. Experimental evidence is provided.
openaire   +1 more source

[Phase transition in dimorphic fungi].

Biofizika, 2001
The morphogenetic process, the transition from the micelial to fungal growth phase in imperfect microscopic dimorphic fungi Phaeococcomyces de Hoog (strain Ch49), induced by high concentrations of transition metal ions, was considered in terms of the phase transition theory.
Iu A, Kumzerov, L K, Panina
openaire   +1 more source

A systematic survey of dimorphic and polymorphic fungi.

Česká Mykologie, 1981
Various definitions of the term dimorphism in fungi are briefly discussed and a general concept is given with a suggested morphological classification of the dimorphism. Dimorphism (and polymorphism) is delimited as an environmentally controlled reversible phenotypic duality (or plurality in the case of polymorphism) in the morphogenesis of the ...
openaire   +1 more source