Sökning: "parasitic fungi"

Visar resultat 1 - 5 av 17 avhandlingar innehållade orden parasitic fungi.

  1. 1. Extracellular serine proteases as virulence factors in nematophagous fungi: Molecular characterization and functional analysis of the PII protease in Arthrobotrys oligospora

    Författare :Johan Åhman; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Aspergillus niger.; Heterologous expression; Over-expression; Gene-disruption; Transformation system; Serine protease; Biological control; Arthrobotrys oligospora; Fungi; Nematophagous; Biologi;

    Sammanfattning : Nematophagous fungi are parasites of nematodes, thus they have been considered and tested for biological control of parasitic nematodes, but so far with limited success. Due to the fact that the nematode cuticle is composed of proteins it is likely that fungal extracellular proteases are involved in the infection of nematodes. LÄS MER

  3. 2. Polyporoid fungi of Tanzania : Taxonomy, transcriptomics and biochemical analyses of Kusaghiporia usambarensis and Piptoporellus baudonii

    Författare :Juma Mahmud Hussein; Sanja Tibell Savić; Donatha Tibuhwa; Christina Wedén; Ulf Göransson; Jan Stenlid; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Systematics; Laetiporaceae; pharmacognosy; cysteine-rich peptide; baudonii; Biology with specialization in Systematics; Biologi med inriktning mot systematik;

    Sammanfattning : Polyporoid fungi refers to basidiomycetes with fruiting bodies with the hymenium located to the inner surfaces of pores or narrow tubes. The majority of polyporoids belongs to Polyporales. Most Polyporales are saprobes, but some are plant pathogens. LÄS MER

  4. 3. Anti-parasitic and anti-viral immune responses in insects

    Författare :Olle Terenius; Ingrid Faye; Kenneth Söderhäll; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hemolin; Hyalophora cecropia; Antheraea pernyi; Drosophila melanogaster; anti-viral; anti-parasitic; rna interference; microarray; innate immunity; Genetics; Genetik;

    Sammanfattning : Insects encounter many microorganisms in nature and to survive they have developed counter measures against the invading pathogens. In Drosophila melanogaster research on insect immunity has mainly been focused on infections by bacteria and fungi. LÄS MER

  5. 4. Pathogens and other threats to Pinus contorta in northern Sweden

    Författare :Margareta Karlman; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Pinus contorta; Pinus sylvestris; provenance; weather damage; vole damage; parasitic fungi; Gremmeniella abietina; Phacidium infestans; Sweden;

    Sammanfattning : The background to the large-scale planting of Pinus contorta in northern Sweden is reviewed with an account of the distribution and characteristics ofPi nus contorta within its natural range in western North America. The threatsto successful planting of exotics are discussed in relation to the historicalbackground. LÄS MER

  7. 5. Studies of different secondary metabolites : Natural products from the mevalonate pathway

    Författare :Mariela Alejandra Gonzales Ramirez; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Natural products; fungi; Galiellalactone; Galiella rufa; Trichilia adolfi; benzofuran;

    Sammanfattning : Natural products, also called secondary metabolites, are small molecules that are not involved in main life processes. These can be produced by any living organism and play important roles as chemical weapons, protecting the organism from the competitive environment. LÄS MER