Substrate regulation of elymoclavine formation by some saccharides. 1987

V Kren, and P Mehta, and V Rylko, and M Flieger, and J Kozová, and P Sajdl, and Z Rehácek

Regulation of the production of clavine alkaloids, especially elymoclavine, by sucrose, maltose, and mixtures of these saccharides was studied in submerged cultures of strains Claviceps purpurea 129/35 and Claviceps sp. SD-58. The data were statistically processed on an EC 1040 computer. Fermentation medium containing sucrose (80 g/l) in combination with glucose (20 g/l) was the best for elymoclavine formation. Retarded release of glucose from maltose increased the formation of elymoclavine and suppressed the synthesis of undesirable extracellular glucans. Carbon source can affect both the total amount of produced alkaloids and the relative proportion of individual clavines in the alkaloid mixture.

UI MeSH Term Description Entries
D008320 Maltose A dextrodisaccharide from malt and starch. It is used as a sweetening agent and fermentable intermediate in brewing. (Grant & Hackh's Chemical Dictionary, 5th ed)
D002967 Claviceps A genus of ascomycetous fungi, family Clavicipitaceae, order Hypocreales, parasitic on various grasses (POACEAE). The sclerotia contain several toxic alkaloids. Claviceps purpurea on rye causes ERGOTISM. Ergot Fungus,Claviceps purpurea,Sphacelia segetum,Fungus, Ergot
D004873 Ergolines A series of structurally-related alkaloids that contain the ergoline backbone structure. Ergoline
D005947 Glucose A primary source of energy for living organisms. It is naturally occurring and is found in fruits and other parts of plants in its free state. It is used therapeutically in fluid and nutrient replacement. Dextrose,Anhydrous Dextrose,D-Glucose,Glucose Monohydrate,Glucose, (DL)-Isomer,Glucose, (alpha-D)-Isomer,Glucose, (beta-D)-Isomer,D Glucose,Dextrose, Anhydrous,Monohydrate, Glucose
D013395 Sucrose A nonreducing disaccharide composed of GLUCOSE and FRUCTOSE linked via their anomeric carbons. It is obtained commercially from SUGARCANE, sugar beet (BETA VULGARIS), and other plants and used extensively as a food and a sweetener. Saccharose
D050260 Carbohydrate Metabolism Cellular processes in biosynthesis (anabolism) and degradation (catabolism) of CARBOHYDRATES. Metabolism, Carbohydrate

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