We inoculated Tuber aestivum and sinoaestivum on Carya illinoinensis to explore the effects of inoculation host plant growth, enzyme activities, physicochemical properties rhizosphere soil, denitrifying bacterial community in rhizosphere, distribution mating type genes rhizosphere. found that spp. increased height stem circumference was greater two months after inoculation. Six inoculation, per...

Leaf blotch is a globally important disease of barley crops and other grasses that is caused by at least five host-specialised species in the fungal genus Rhynchosporium. The pathogen R. commune (specialised to barley, brome-grass and Italian ryegrass) has long been considered to reproduce only by asexual means, but there has been accumulating evidence for recombination and gene flow from popul...

The fungal genus Stemphylium (Ascomycota) contains selfing species that evolved from outcrossing ancestors. To find out how selfing originated, we analyzed the Stemphylium MAT loci that regulate sexual reproduction in ascomycetes and compared MAT structures and phylogeny with a multigene Stemphylium species phylogeny. We found that some Stemphylium species' MAT loci contained a single gene, eit...

Mating type genes are central to sexual reproduction and compatibility in Ascomycete fungi. However the "MAT" loci experience unique evolutionary pressures that can result in rapid divergence and enhanced inter-specific gene-flow (lateral gene transfer). In this study, molecular evolution of MAT loci was considered using the genus Fusarium (Teleomorph: Gibberella) as a model. Both MAT1-1 and MA...

Sexual reproduction in filamentous ascomycetes is controlled by the mating type (MAT) locus, including two idiomorphs MAT1-1 and MAT1-2 Understanding the MAT locus can provide clues for unveiling the sexual development and virulence factors for fungal pathogens. The genus Valsa (Sordariomycetes, Diaporthales) contains many tree pathogens responsible for destructive canker diseases. The sexual s...

Abstract Background Aspergillus niger is a ubiquitous filamentous fungus widely employed as cell factory thanks to its abilities produce wide range of organic acids and enzymes. Its genome was one the first genomes be sequenced in 2007, due economic importance role model organism study fungal fermentation. Nowadays, sequences more than 20 A. strains are available. These, however, do not include...

The necrotrophic fungal pathogen Sclerotinia trifoliorum exhibits ascospore dimorphism and unidirectional mating type switching - self-fertile strains derived from large ascospores produce both self-fertile (large-spores) and self-sterile (small-spores) offsprings in a 4:4 ratio. The present study, comparing DNA sequences at MAT locus of both self-fertile and self-sterile strains, found four ma...

The lack of an experimentally amenable sexual genetic system in Aspergillus fumigatus is a major limitation in the study of the organism's pathogenesis. A recent comparative genome analysis revealed evidence for potential sexuality in A. fumigatus. Homologs of mating type genes as well as other genes of the "sexual machinery" have been identified in anamorphic A. fumigatus. The mat1-2 gene enco...

.........................................................................................................................................8 REVIEW OF THE LITERATURE........................................................................................................11 1 THE CELL CYCLE .................................................................................................................