Biosynthesis of Fumonisins in Gibberella fujikuroi Mating Population A
نویسندگان
چکیده
منابع مشابه
Regulation of Gibberellin Biosynthesis in Gibberella fujikuroi.
Gibberellin production by Gibberella fujikuroi started only after the nitrogen source was depleted and ceased upon its renewal. Nitrogen repression of gibberellin biosynthesis is not an indirect effect of the growth arrest that follows the depletion of an essential nutrient because gibberellins were not produced upon depletion of phosphate. Mycelia produced gibberellins when suspended in a gluc...
متن کاملHeritability of fumonisin B1 production in Gibberella fujikuroi mating population A.
Fumonisins are mycotoxins produced by strains belonging to several different mating populations of Gibberella fujikuroi (anamorphs, Fusarium section Liseola), a major pathogen of maize and sorghum worldwide. We studied the heritability of fumonisin production in mating population A by crossing fumonisin-producing strains collected from maize and sorghum in the United States with fumonisin-nonpr...
متن کاملGenetic Analysis of Fumonisin Production and Virulence of Gibberella fujikuroi Mating Population A (Fusarium n10nilifolme) on Maize
The phytopathogenic fungus Gibberella jujikuroi mating population A (anamorph, Fusarium mOlliliforme) produces fumonisins, which are toxic to a wide range of plant and animal species. Previous studies of field strains have identified a genetic locus, designatedjiulll, that can determine whether fumonisins are produced. To test the relationship between fumonisin production and virulence on maize...
متن کاملThe P450-1 gene of Gibberella fujikuroi encodes a multifunctional enzyme in gibberellin biosynthesis.
Recent studies have shown that the genes of the gibberellin (GA) biosynthesis pathway in the fungus Gibberella fujikuroi are organized in a cluster of at least seven genes. P450-1 is one of four cytochrome P450 monooxygenase genes in this cluster. Disruption of the P450-1 gene in the GA-producing wild-type strain IMI 58289 led to total loss of GA production. Analysis of the P450-1-disrupted mut...
متن کاملThe NADPH-cytochrome P450 reductase gene from Gibberella fujikuroi is essential for gibberellin biosynthesis.
The fungus Gibberella fujikuroi is used for the commercial production of gibberellins (GAs), which it produces in very large quantities. Four of the seven GA biosynthetic genes in this species encode cytochrome P450 monooxygenases, which function in association with NADPH-cytochrome P450 reductases (CPRs) that mediate the transfer of electrons from NADPH to the P450 monooxygenases. Only one cpr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mycotoxins
سال: 1999
ISSN: 0285-1466,1881-0128
DOI: 10.2520/myco1975.1999.suppl2_2