Showing papers in "Experimental Mycology in 1979"

TL;DR: Chitosan, a deacetylated form of chitin, inhibited the growth of many fungi, including plant and animal pathogens, and was insensitive to its fungicidal effects.

TL;DR: It is suggested that rodlets of A. niger are mainly proteinaceous, based on the gross chemical composition of the outer conidial wall layer and data obtained from enzymatic digestion and various chemical treatments of this layer followed by ultrastructural examinations.

TL;DR: Results indicate that melanin biosynthesis in T. basicola involves the stepwise conversion of scytalone to melanin as reported previously for Verticillium dahliae.

TL;DR: The dually controlled nature of light-induced β-carotene synthesis in Phycomyces is supported by the possible biphasic appearance of fluence-response data, which suggest the superposition of two components responsive to low light fluence and high light fluences.

TL;DR: Combined light and electron microscopical investigations showed that cytokinesis in vegetative hyphae of the basidiomycetous fungus Trametes versicolor is triggered during meta-anaphase, and tight associations among the FSB, mitochondria, and microvesicles seem to indicate interactions between microfilaments and membranes and to lead to trapping of these and other cell organelles.

TL;DR: In this article, the structures of soluble and insoluble glucans from isolated cell walls of yeast, mycelial, and conidial forms of Sporothrix schenckii were compared.

TL;DR: A preliminary analysis of the movement of single amoebas in response to unilateral lighting supports the hypothesis that the underlying mechanism for photodispersal is negative phototaxis from the light scattered by other cells within the light trap.

TL;DR: The time and location of the first septa formed by cells of Candida albicans when such cells were induced to grow synchronously as either mycelial or budding cultures are examined.

TL;DR: In this article, mycelial and yeast cell-free extracts have been used to examine in vitro glucan synthesis in the pathogenic dimorphic fungus Paracoccidioides brasiliensis.

TL;DR: Intraspecific variability of isoenzymes is described for approximately 20 isolates each of two species of Entomophthora, and the data suggest that only a single locus codes for PGI in E. sphaerosperma, while two loci code for P GI inE.

TL;DR: Yeast walls had higher contents of total carbohydrate, mainly water- and alkali-soluble polysaccharides, and lower contents of proteins and lipids, while mycelial and conidial walls were qualitatively and quantitatively similar.

TL;DR: Sporotrichum ( Chrysosporium ) thermophile was shown to produce β -glucosidase during growth on cellulose, cellobiose, laminaribiose, and arbutin, suggesting an intracellular function.

TL;DR: During zoospore release from sporangia, all Phytophthora species studied developed a discharge (germination) vesicle into which 30 to 70% of the total number of zoospores were released before the vesicles burst.

TL;DR: In this paper, a standardized set of conditions, which yields highly reproducible kinetics of differentiation, is described for measuring germination of the asexual spores of the Oomycete, Achlya bisexualis, and the effects of these inhibitors on the incorporation of labeled precursors into RNA and protein were also measured.

TL;DR: The sequence of intracellular transitions leading to the formation of γ particles during zoosporogenesis was examined by electron microscopy of synchronous cultures of Allomyces macrogynus and semisynchronous cultures of Catenaria anguillulae.

TL;DR: Data suggest that Smittium is not closely related to Amoebidium nor to any of the Mucorales or Kickxellales, and phylogenetic relationships among these groups of organisms are clarified.

TL;DR: The combined cytochemical data suggest that the endoplasmic reticulum in Allomyces, and perhaps in other chytrids, has enzymatic activities similar to those of the Golgi apparatus in other eucaryotic cells.

TL;DR: Ascospore in four-spored asci of Fsp initially contains a single nucleus, in contrast to the pseudohomothallic species Neurospora tetrasperma or Podospora anserina where two, unlike nuclei are included in each ascospore.

TL;DR: The fine structure of mitochondria in starved and growing cells was different from that of growing cells, and the volume of the mitochondrion compared to the total cytoplasm was lower in starved cells than in growing cells.

TL;DR: Temperature variation influenced the synthesis of polysaccharides in one strain of C. paradoxa and also influenced the incorporation of N -acetylglucosamine units into several mannans in Ceratocystis isolates.

TL;DR: In the present investigation the orange pigment was extracted from copepods containing orange gametangia and subjected to uv spectral analysis and thinlayer chromatography, and the chromatographic properties of the pigment indicate it is β-carotene.

TL;DR: In this paper, the slime component of Neurospora crassa was found to participate in sexual and asexual fusions and the cell wall is an important cell-surface determinant in cell-cell fusions.

TL;DR: Although germination can be initiated by the carbon source alone, other constituents are required for germ tube emergence and germ tube elongation, indicating that processes relating to formation of the germ tube require magnesium and zinc.

TL;DR: The profiles of intracellular proteinases in growing myxamoebae-swarm cells and dormant microcysts of Physarum flavicomum Berk were determined as mentioned in this paper.

TL;DR: Four cytochemical substrates and 11 coupling agents were investigated and only α-naphthyl N-acetyl-β- d -glucosaminide was satisfactory as a substrate, and Fast Red B and p-nitrobenzene diazonium tetrafluoroborate were the only coupling reagents that yielded stable discrete reaction products.

TL;DR: In this article, a 51,000-dalton protein copurified with actin to a certain extent and precipitated with actins during the limited salt-induced polymerization which occurred.

TL;DR: The results suggest that the chitin synthetase zymogen was synthesized de novo during germination, initially directed by mRNA preformed during conidiogenesis.

TL;DR: In this article, microbodies and microbody marker enzyme activities were monitored ultrastructurally and biochemically, respectively, in Blastocladiella emersonii.

TL;DR: In this article, the properties of mannosyl transferase from the mycelial and yeast forms of the dimorphic fungus Mucor rouxii were studied and two Km and Vmax values were calculated.

TL;DR: The high degree of synchrony and control of large populations of C. confervae in axenic culture makes it adaptable to morphological and molecular studies of development.