Showing papers in "Fungal Genetics and Biology in 1999"

TL;DR: A review is presented related to the biochemistry of lignocellulose transformation that focuses on the roles of small molecular compounds and radicals working in concert with enzymes in wood rotting basidiomycetous fungi.

TL;DR: This review covers the various stages of the infection processes of Colletotrichum species, including spore adhesion and germination, germ tube and appressorium differentiation and functions, and biotrophic and necrotrophic development.

TL;DR: In this article, a putative polyketide synthase (PKS) gene involved in fumonisin biosynthesis was identified, and a cDNA template was extracted from a maize pathogen Gibberella fujikuroi mating population A.

TL;DR: The results indicate that ech42 is expressed before contact of T. harzianum with R. solani and its induction is triggered by soluble chitooligosaccharides produced by constitutive activity of CHIT42 and/or other chitinolytic enzymes.

TL;DR: Developments in sensor technology have led to the construction of "electronic noses" (volatile compound mappers), which should make it possible to detect individual fungal species as well as the degree of mycotoxin contamination of food and animal feeds.

TL;DR: Four novel cDNAs containing sequences related to elicitins, a family of structurally related proteins that induce the hypersensitive response and condition avirulence of P. infestans on Nicotiana plants, were among the most notable genes identified.

TL;DR: Sugar analysis of isolated cell walls from three formae speciales of Fusarium oxysporum showed that they contained not only glucose and (N-acetyl)-glucosamine, but also mannose, galactose, and uronic acids, presumably originating from cell wall glycoproteins.

TL;DR: The LC-series primers may be useful molecular tools to facilitate the cloning of novel fungal polyketide synthase genes.

TL;DR: A Galpha subunit-encoding gene (CGA1) was cloned from Cochliobolus heterostrophus, a heterothallic foliar pathogen of corn and showed similarity to Galpha proteins from other filamentous fungi and suggested that CGA1 is a member of the Galphai class.

TL;DR: This review describes, summarize, and considers the rapidly expanding field of protein phosphorylation/dephosphorylation in various aspects of filamentous fungal growth and development.

TL;DR: Data confirmed the previous proposal that TRI6 is an activator of trichothecene pathway gene expression and that DNA binding employs the C-terminal region of TRI6 containing three predicted Cys2His2 zinc fingers.

TL;DR: The recent cloning of genes encoding the components of the corresponding complex (AnCF/PENR1) of Aspergillus nidulans and characterization of CCAAT-regulated genes in A. ndulans led to a deeper insight into the role of this transcription complex, in particular in aerobically growing fungi.

TL;DR: Polymorphism of the internal transcribed spacers of the ribosomal DNA in Scutellospora castanea and its organization among spores were evaluated and showed that they were qualitatively different one from another due to the presence or absence of some ITS types.

TL;DR: The different ways in which fungal pathogens may counter the antifungal compounds produced by their host plants are outlined and the evidence for and against these compounds as antimicrobial phytoprotectants are summarized.

TL;DR: Although fungi have contributed tremendously to understanding biological phenomena common to all eukaryotic organisms, some of their properties testify as to their uniqueness, which justifies studies on the molecular basis of development aimed particularly at this group of organisms.

TL;DR: Data presented here suggest that R. solani AG-1 IA is actively outbreeding (heterothallic) and possible explanations for heterozygote excess, which was observed at all seven RFLP loci, are discussed.

TL;DR: It is shown that some sequences reported recently from the arbuscular mycorrhizal fungus Scutellospora castanea most likely originate from Ascomycetes, which means that previous conclusions which were drawn regarding the heterokaryotic status of AM fungal spores remain unproven.

TL;DR: A pair of congenic MATalpha and MATa haploid strains have been constructed that permit detailed studies on physiology and virulence by classical genetic approaches in C. neoformans and the genomic sequence of one of these strains is in progress.

TL;DR: This review summarizes the knowledge of CWPs in P. tinctorius and considers parallels with other biotrophic fungi as a possible framework for future work.

TL;DR: Phylogenetic analysis of partial sequences encoding the nuclear 26S rDNA demonstrated that all three populations belong to a single monophyletic group, which includes the type strain of C. albicans, suggesting that they are closely related.

TL;DR: Variation in the progeny sensitivity appears to involve minor genes, and a correlation study between metalaxyl resistance and fitness components did not reveal any association.

TL;DR: The new methods of obtaining pure microconidia from normal laboratory strains will make it quick and easy to purify heterokaryotic transformants following introduction of DNA into multinucleate protoplasts and allow the detection of genetic variability that remains hidden within an individual fungus and the estimation of the frequency of nuclear types in laboratory-constructedheterokaryons.

TL;DR: The results suggest that in submerged culture, N. crassa, like mammalian systems, possesses compensatory mechanisms that maintain cAMP at relatively constant levels.

TL;DR: There are increasing data from hyphae which are explicable by the ameboid model, but detailed mechanisms of tip growth remain too poorly known to provide definitive proof of the model and the behavior of the trailing cytoplasm indicates differences which are probably a response to the walled lifestyle.

TL;DR: The aflatoxin biosynthetic pathway represents one of the est studied pathways of fungal secondary metabolism and its lucidation is the result of over 30 years of study by cientists in many disciplines.

TL;DR: expression of the M. grisea putative pheromone precursor genes was observed under defined nutritional conditions and in field isolates, suggesting that the requirement for complex media for mating and the poor fertility of field isolating may not be due to limitation of pherOMone precursor gene expression.

TL;DR: It is proposed that internuclear distance affects gene expression through a pheromone/receptor system in the Homobasidiomycete Schizophyllum commune and can account for all data resulting from genetic analyses.

TL;DR: The results reveal that defects in germination of conidia, placement of septa, and mitochondrial morphology are typical of ro mutants, and two classes of microtubules are identified in wild-type and ro mutants.

TL;DR: Together, in vitro and in vivo data indicate that biomechanical characteristics of fungi may be important determinants of virulence and disease progression in human and animal mycoses.

TL;DR: It is concluded that polyphosphate is indeed present in the vacuoles of the fungal cells of these ectomycorrhizas, but that in vivo it is in a dispersed form, not in granules.