Biosynthesis of gibberellins in Gibberella fujikuroi. Gibberellin A47. 1977

A G McInnes, and D G Smith, and R C Durley, and R P Pharis, and G P Arsenault, and J MacMillan, and P Gaskin, and L C Vining

Two minor radioactive products in cultures of G. fujikuroi strain ACC917 supplemented with labeled gibberellin A4 have been identified as the 2alpha-hydroxy derivative, gibberellin A47, and the hydrate, gibberellin A2. In addition, evidence was obtained by combined gas chromatography--mass spectrometry for the formation of 3-O-acetylgibberellin A1,3-O-acetylgibberellin A3, and gibberellin A20 by the culture. The time course of gibberellin synthesis in defined and complex media, as well as changes in the relative amounts of radioactive gibberellins formed when [4C]gibberellin A4 was added to cultures at different ages, suggest that the composition of the gibberellin mixture produced is determined by the balance between synthesis and decay of key enzymes in the branching pathway.

UI MeSH Term Description Entries
D006999 Hypocreales An order of fungi in the phylum ASCOMYCOTA that includes a number of species which are parasitic on higher plants, insects, or fungi. Other species are saprotrophic. Hypocreale
D007700 Kinetics The rate dynamics in chemical or physical systems.
D005874 Gibberella A genus of ascomycetous fungi of the family Hypocreaceae, order Hypocreales including several pathogens of grains and cereals. It is also the source of plant growth regulators such as gibberellin and gibberellic acid. Gibberellas
D005875 Gibberellins A class of plant growth hormone isolated from cultures of GIBBERELLA FUJIKUROI, a fungus causing Bakanae disease in rice. There are many different members of the family as well as mixtures of multiple members; all are diterpenoid acids based on the gibberellane skeleton. Gibberellin
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
D013025 Glycine max An annual legume. The SEEDS of this plant are edible and used to produce a variety of SOY FOODS. Soy Beans,Soybeans,Bean, Soy,Beans, Soy,Soy Bean,Soybean

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