| fungi isolated from flue-cured tobacco sold in southeast united states, 1968-1970. | flue-cured tobacco leaves, from low- and middle-stalk positions, offered for sale in each of two markets, within each of five tobacco types, were evaluated for moisture content (mc) and filamentous fungi during august through october in 1968, 1969, and 1970. alternaria alternata, penicillium cyclopium, aspergillus niger, aspergillus repens, and aspergillus flavus were most frequently isolated from cultured tissue. other filamentous fungi that grew from the tissue included species from four gener ... | 1972 | 4627970 |
| regional differences in production of aflatoxin b1 and cyclopiazonic acid by soil isolates of aspergillus flavus along a transect within the united states. | soil isolates of aspergillus flavus from a transect extending from eastern new mexico through georgia to eastern virginia were examined for production of aflatoxin b1 and cyclopiazonic acid in a liquid medium. peanut fields from major peanut-growing regions (western texas; central texas; georgia and alabama; and virginia and north carolina) were sampled, and fields with other crops were sampled in regions where peanuts are not commonly grown. the a. flavus isolates were identified as members of ... | 1999 | 10103234 |
| sexual reproduction in aspergillus tubingensis from section nigri. | a sclerotium-forming member of aspergillus section nigri was sampled from a population in a single field in north carolina, usa, and identified as a. tubingensis based on genealogical concordance analysis. aspergillus tubingensis was shown to be heterothallic, with individual strains containing either a mat1-1 or mat1-2 mating-type gene. strains of opposite mating type were crossed on mixed cereal agar and incubated for 5-6 months. stromata typically formed 1-2 indehiscent ascocarps containing a ... | 2013 | 23709489 |
| altenuene derivatives from an unidentified freshwater fungus in the family tubeufiaceae. | four new altenuene derivatives called dihydroaltenuenes a (1) and b (2) and dehydroaltenuenes a (3) and b (4), along with five known compounds, including isoaltenuene (5), altenuene (6), and 5'-epialtenuene (7), were isolated from cultures of an unidentified freshwater aquatic fungal species in the family tubeufiaceae. the structures of 1-4 were determined by analysis of nmr and ms data. the relative stereochemistry was determined on the basis of (1)h nmr j-values and noe data, while the absolut ... | 2006 | 16643037 |
| a protective endophyte of maize: acremonium zeae antibiotics inhibitory to aspergillus flavus and fusarium verticillioides. | the maize endophyte acremonium zeae is antagonistic to kernel rotting and mycotoxin producing fungi aspergillus flavus and fusarium verticillioides in cultural tests for antagonism, and interferes with a. flavus infection and aflatoxin contamination of preharvest maize kernels. chemical studies of an organic extract from maize kernel fermentations of acremonium zeae (nrrl 13540), which displayed significant antifungal activity against aspergillus flavus and f. verticillioides, revealed that the ... | 2005 | 16018316 |