Production of caffeine alkaloid by Claviceps sorghi
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چکیده
منابع مشابه
Heterokaryosis and alkaloid production in Claviceps purpurea.
Strain 275 FI of Claviceps purpurea, which produces large amounts of peptide alkaloids in submerged culture, is a heterokaryon; after several generations on agar media, it segregates the single components. These components (by us labeled V, C, and W) are stable and produce almost no alkaloids under described conditions of submerged culture. The mycelium of strain 275 FI consists of hyphae with ...
متن کاملSugary disease or Asian ergot of sorghum - Claviceps sorghi
Claviceps sorghi is a pathogen of Sorghum bicolor found only in India and Southeast Asia. The more widespread C. africana is predominant even in India; C. sorghi appears to be marginalized in its restricted range. A significant difference in invasiveness is the relative production of inoculum that spreads plant-to-plant. Claviceps sorghi produces few to no secondary conidia from macroconidia on...
متن کاملInoculated Host Range and Effect of Host on Morphology and Size of Macroconidia Produced by Claviceps africana and Claviceps sorghi
Twenty graminaceous plant species were evaluated for their susceptibility to the two sorghum ergot pathogens Claviceps sorghi and Claviceps africana. Five species viz., Sorghum arundinaceum, Sorghum halepense, Sorghum versicolor, Sorghum virgatum and Pennisetum glaucum were found to become infected by both pathogens via inoculation with 10 conidia/ml. Species which did not become infected under...
متن کاملEffect of biotin on alkaloid production during submerged cultivation of Claviceps sp. strain SD-58.
Addition of biotin to culture medium NL-406 significantly increased alkaloid yield during submerged cultivation of Claviceps sp. strain SD-58. Alkaloid yield was further enhanced by incorporating leucine in biotin-supplemented culture medium. Increased alkaloid production was associated with an increase in the lipid content of cells and in the number of chlamydospores. Biotin deficiency caused ...
متن کاملCultural characteristics, morphology, and variation within Claviceps africana and C. sorghi from India.
Sorghum ergot in India is caused by Claviceps africana and C. sorghi. The distributions of these two species in India is not known. Eighty-nine sorghum ergot isolates were cultured from young sphacelia obtained from male sterile sorghum plants artificially inoculated using inoculum collected in the field. Based on cultural characteristics, the isolates were separated into two groups which diffe...
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ژورنال
عنوان ژورنال: Fitopatologia Brasileira
سال: 2003
ISSN: 0100-4158
DOI: 10.1590/s0100-41582003000400019