Results 141 to 150 of about 13,162 (199)

Ergot alkaloid control in biotechnological processes and pharmaceuticals (a mini review). [PDF]

Front Toxicol
Volnin A, Parshikov A, Tsybulko N, Mizina P, Sidelnikov N.   +4 more
europepmc   +1 more source

Variability and nutrition of Claviceps purpurea in culture

, 1976
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Agroclavine hydroxylase of Claviceps purpurea

Biochimica et Biophysica Acta (BBA) - General Subjects, 1970
Abstract The 60–80% ammonium sulfate fraction of Claviceps purpurea PRL 1980 catalyzed the conversion of agroclavine to elymoclavine. The reaction required NADPH. EDTA and cyanide inhibited the reaction. Agroclavine increased the rate of oxidation of NADPH. The increase in rate was 4.8 μmoles NADPH per h mg protein at 25° and pH 7.0.
J C, Hsu, J A, Anderson
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Evaluation of Claviceps purpurea Isolates on Wheat Reveals Complex Virulence and Host Susceptibility Relationships [PDF]

Canadian Journal of Plant Pathology, 2017
Ergot of cereals, caused by Claviceps purpurea, results in yield loss and downgrading of infested grain because of toxic alkaloids in the sclerotia. Resistant wheat genotypes are known, but their effectiveness against different C.
Jim G Menzies, Anna Gordon, Donal M O'Sullivan   +2 more
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The Infection of Rye Callus With Claviceps purpurea

Journal of the American Pharmaceutical Association (Scientific ed.), 1959
Abstract 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
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Enzymatic Methylation of Nicotinamide by Claviceps purpurea

Journal of Pharmaceutical Sciences, 1964
Soluble supernatant fractions from two strains of Claviceps purpurea were tested for the presence of enzymes capable of methylating tryptamine, 5-hydroxytryptamine, tyramine, and nicotinamide. The latter compound was the only one of the substrates tested in which methylation took place.
R C, AUDETTE, L R, WORTHEN, H W, YOUNGKEN   +2 more
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Host infection by Claviceps purpurea

Transactions of the British Mycological Society, 1980
Infection of wheat and rye by Claviceps purpurea and its subsequent sphacelial development was investigated by light and electron microscopy. Penetration occurred via the stigma and ovary wall and colonization was intercellular. Pectolytic enzymes were detected both in submerged cultures of the fungus and in infected ovaries and may play a part in ...
Barbara I. Shaw, P.G. Mantle
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Succinate dehydrogenase in the ergot fungus claviceps purpurea☆

Biochimica et Biophysica Acta, 1963
Abstract 1. 1. A study of electron transport by cell extracts of the parasitic fungus Claviceps purpurea revealed a succinate dehydrogenase (EC 1.3.99.1) which appeared unique among mammalian and microbial succinate dehydrogenases so far studied in respect to ease of solubilization, solubility and stability, freedom from cytochrome contamination,
J K, MCDONALD, J A, ANDERSON, V H, CHELDELIN, T E, KING   +3 more
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A GLUCAN PRODUCED BY CLAVICEPS PURPUREA

Canadian Journal of Chemistry, 1963
A glucan is produced by pure cultures of Claviceps purpurea (Fr.) Tul., PRL 1980, and its formation appears to be related to the accumulation of other shunt products such as ergot alkaloids, polyols, and trehalose. The glucan consists of β-D-glucopyranosyl units, most of which constitute a (1 → 3)-linked main chain.
A. S. Perlin, W. A. Taber
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