| thermophilic and thermotolerant fungi of animals' hair. | nine thermophilic genera and 17 species in addition to one variety of aspergillus flavus, malbranchea pulchella and humicola grisea were collected from hair samples in riyadh, saudi arabia at 45 degrees c. fifty-one hair specimens of rabbit, sheep, camel and horse were examined for the presence of thermophilic fungi. the most frequent species were aspergillus fumigatus, aspergillus niger, thermoascus aurantiacus and malbranchea pulchella var. sulfurea. in low frequency, aspergillus flavus, asper ... | 1991 | 1805498 |
| a maize lectin-like protein with antifungal activity against aspergillus flavus. | the filamentous fungus aspergillus flavus causes an ear rot on maize and produces a mycotoxin (aflatoxin) in colonized maize kernels. aflatoxins are carcinogenic to humans and animals upon ingestion. aflatoxin contamination results in a large loss of profits and marketable yields for farmers each year. several research groups have worked to pinpoint sources of resistance to a. flavus and the resulting aflatoxin contamination in maize. some maize genotypes exhibit greater resistance than others. ... | 2009 | 19205472 |
| fungal flora and aflatoxin contamination of feedstuff samples in beida governorate, libya. | fungi of 19 genera, 30 species, and one variety were isolated from 25 samples of sheep-, cattle- and camel feedstuffs collected from different farms in the beida governorate, libya. aspergillus, penicillium and fusarium were the most common genera in the three substrates tested. tlc was used to establish the identity of aflatoxins in the chloroform extract of all samples and the ability to produce aflatoxins by aspergillus flavus in a synthetic liquid medium. twenty samples out of 25 tested were ... | 1996 | 9090825 |
| studies of immune function of cd-1 mice exposed to aflatoxin b1. | the immunotoxic potential of aflatoxin b1 (afb1), a secondary metabolite of aspergillus flavus and a known animal hepatocarcinogen, was evaluated in cd-1 mice. male mice received 0, 0.03, 0.145 or 0.70 mg/kg of afb1 orally every other day for 2 weeks in a corn oil:ethanol vehicle. splenic lymphocytes were cultured in the presence of lipopolysaccharide (lps), phytohemagglutinin (pha), or pokeweed mitogen (pwm). a dose-related inhibition of [3h]thymidine uptake in lymphocyte cultures, with or with ... | 1987 | 2433813 |
| wool-colonizing micro-organisms capable of utilizing wool-lipids and fatty acids as sole sources of carbon and energy. | two keratinolytic fungi, chrysosporium keratinophilum and malbranchea anamorph of uncinocarpus reesii, and another three wool-colonizing fungi not previously reported to be keratinolytic, aspergillus fumigatus, a. flavus and scopulariopsis candida, were isolated from soil samples baited with animal wool. these fungi were tested for their ability to utilize wool-lipids as sole source of carbon and energy. the lipid contents of wool of various animals ranged between 2 and 5%. the different lipid e ... | 1990 | 2126788 |
| resistance of c57bl/6 mice to immunosuppressive effects of aflatoxin b1 and relationship with neuroendocrine mechanisms. | aflatoxin b1 (afb1) a secondary metabolite of aspergillus flavus and a. parasiticus, is known for its carcinogenicity and immunosuppressive effects. we previously reported on the immunosuppressive effects of afb1 in swiss and cd-1 mice. this study concerned the involvement of the hypothalamus-pituitary-adrenal gland axis in the immunosuppressive effects of afb1 in c57bl/6 mice. animals were treated orally with 30, 150 or 750 micrograms/kg afb1 daily for four weeks. splenic lymphocytes were assay ... | 1991 | 1761400 |