Results 161 to 170 of about 13,162 (199)
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REACTION OF CULTIVATED CEREALS TO CLAVICEPS PURPUREA
Canadian Journal of Plant Science, 1976The influence of inoculum concentration on the reaction induced in species and cultivars of commercial cereals by two isolates of ergot (Claviceps purpurea (Fr.) Tul.) was investigated. Differences were observed among and within species with respect to each of the three components of the disease reaction, i.e., frequency of sclerotia, size of ...
R. G. PLATFORD, C. C. BERNIER
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Transcripts and translation products of a mitochondrial plasmid of Claviceps purpurea
Current Genetics, 1992Expression of the linear mitochondrial (mt) plasmid pClK1 of strain K of the ascomycete Claviceps purpurea was studied at the RNA and protein level. Using strand-specific probes two major transcripts were detected, corresponding to ORF1 and ORF2 of the plasmid, which most likely code for a DNA-polymerase and an RNA-polymerase, respectively.
K, Gessner-Ulrich, P, Tudzynski
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Transformation of Claviceps purpurea using a bleomycin resistance gene
Applied Microbiology and Biotechnology, 1989To develop a DNA-mediated transformation system for Claviceps purpurea a vector was constructed using a bleomycin-resistance gene (bleoR) fused in frame to the Aspergillus nidulans trp C promoter as a dominant selection marker. The construct was shown to be functional in Aspergillus nidulans and Aspergillus niger and used to transform a wild strain of ...
van Engelenburg, F.A.C. +4 more
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Evidence for an ergot alkaloid gene cluster in Claviceps purpurea
Molecular and General Genetics MGG, 1999A gene (cpd1) coding for the dimethylallyltryptophan synthase (DMATS) that catalyzes the first specific step in the biosynthesis of ergot alkaloids, was cloned from a strain of Claviceps purpurea that produces alkaloids in axenic culture. The derived gene product (CPD1) shows only 70% similarity to the corresponding gene previously isolated from ...
P, Tudzynski +5 more
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The Culture of Claviceps purpurea
Journal of the American Pharmaceutical Association (Scientific ed.), 1954V.E. Tyler, A.E. Schwarting
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Polygalacturonase is a pathogenicity factor in the Claviceps purpurea/rye interaction
Fungal Genetics and Biology, 2002Claviceps purpurea is a biotrophic, organ-specific pathogen of grasses and cereals, attacking exclusively young ovaries. We have previously shown that its mainly intercellular growth is accompanied by degradation of pectin, and that two endopolygalacturonase genes (cppg1/cppg2) are expressed throughout all stages of infection.
Birgitt, Oeser +4 more
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Proteinases of various Claviceps purpurea strains.
Biomedica biochimica acta, 1987Extra- and intracellular proteinases from various Claviceps purpurea strains grown in submerged culture have been studied. A maximum level of intracellular proteinases was observed on the 6th day of culture growth, whereas extracellular activity continued to increase throughout the culture growth. Proteinases were purified and characterized.
I, Kregar, J, Babnik, V, Turk, I, Kolesa
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Tryptophan Synthesis in Claviceps purpurea
Science, 1953V E, TYLER, A E, SCHWARTING
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Extrachromosomal genetics of Claviceps purpurea
Current Genetics, 1986Paul Tudzynski, Karl Esser
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