Results 171 to 180 of about 5,467 (206)
Some of the next articles are maybe not open access.
The Infection of Rye Callus With Claviceps purpurea
Journal of the American Pharmaceutical Association (Scientific ed.), 1959Abstract The methods and results of inoculating callus cultures of rye( Secale cereale ) with ergot ( Claviceps purpurea ) are described. The fungus grows intercellularly and invades some cells, but does not produce alkaloids.
D P, CAREW, A E, SCHWARTING
openaire +2 more sources
Zur Biosynthese von Ergotoxinalkaloiden in Claviceps purpurea
Biochemie und Physiologie der Pflanzen, 1971Summary The biosynthetic pathway of ergotoxine alkaloids (ergocornine, ergokryptine) was studied with Claviceps purpurea strain Pepty 695. Lysergic acid-U- 14 C is specifically incorporated into the lysergic acid moiety of ergotoxins. Lysergic acid amide is no intermediate in the formation of peptide type ergot alkaloids.
W. Maier, D. Erge, D. Gröger
openaire +1 more source
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
openaire +1 more source
INFECTION OF BARLEY BY CLAVICEPS PURPUREA
Canadian Journal of Botany, 1958The development of infection of the ovary of Newal barley (Hordeum vulgare L.) by the ergot fungus, Claviceps purpurea (Fr.) Tul., was traced from the time of inoculation until formation of the sclerotia. Penetration took place within 24 hours near the base of the ovule.
openaire +1 more source
Sclerotium size and germination in Claviceps purpurea
Transactions of the British Mycological Society, 1966The relationship between the size of the Sclerotium and its behaviour during germination was investigated. Large sclerotia showed higher percentage germination levels at any given time during germination and gave rise to taller clavae than did smaller ones.
R.C. Cooke, D.T. Mitchell
openaire +1 more source
Cytochrome P-450 and Alkaloid Synthesis in Claviceps Purpurea
Journal of Pharmaceutical Sciences, 1970Tryptophan, 4-dimethylallyltryptophan, and various analogs of tryptophan were investigated for their effect on binding to cytochrome P-450 and on cytochrome P-450 and total alkaloid levels in Claviceps purpurea. These compounds were shown not to affect cytochrome P-450 levels, in contrast to phenobarbital which increased the levels, but rather ...
S H, Ambike, R M, Baxter
openaire +2 more sources
Epigenetic modification enhances ergot alkaloid production of Claviceps purpurea
Biotechnology Letters, 2019To enhance ergot alkaloid production of Claviceps purpurea Cp-1 strain by epigenetic modification approach.The chemical epigenetic modifiers were screened to promote ergot alkaloid production of the Cp-1 strain. The histone deacetylase inhibitor suberoylanilide hydroxamic acid (SAHA) was found to significantly enhance the alkaloid productivity of the ...
Jing-Jing, Chen +5 more
openaire +2 more sources
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
openaire +1 more source
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
openaire +2 more sources
Development of stromata in Claviceps purpurea
Transactions of the British Mycological Society, 1968Observations on the development of Claviceps purpurea (Fr.) Tul. stromata showed that extension growth occurred only at the stalk apex. The rate of stalk elongation was greater in darkness than in diurnal conditions or continuous light and positive phototropic alignment of the clavae involved enhanced extension growth of hyphae on the shaded side of ...
openaire +1 more source