Studies on Aspergillus Flavus
نویسندگان
چکیده
منابع مشابه
Nitrification by Aspergillus flavus.
Marshall, K. C. (Cornell University, Ithaca, N. Y.) and M. Alexander. Nitrification by Aspergillus flavus. J. Bacteriol. 83:572-578. 1962.-Aspergillus flavus has been shown to produce bound hydroxylamine, nitrite, and nitrate when grown in peptone, amino acid, or buffered ammonium media. Free hydroxylamine was not detected in these cultures, but it was found in an unbuffered ammonium medium in ...
متن کاملDevelopment of Aspergillus Flavus Af36
Aflatoxins are highly toxic cancer causing fungal metabolites known to cause immune-system suppression, growth retardation, liver disease, and death in both humans and domestic animals. Human exposure to aflatoxins is limited by regulations that prohibit the use of crops containing excess quantities of aflatoxins for foods and feeds. Aflatoxins are regulated in part per billion (ppb) ranges wit...
متن کاملSexual reproduction in Aspergillus flavus.
Aspergillus flavus is the major producer of carcinogenic aflatoxins in crops worldwide and is also an important opportunistic human pathogen in aspergillosis. The sexual state of this heterothallic fungus is described from crosses between strains of the opposite mating type. Sexual reproduction occurred between sexually compatible strains belonging to different vegetative compatibility groups. ...
متن کاملStudies on the Effects of Subzero Temperatures on the Viability of Spores of Aspergillus Flavus
1. The survival of spores of Aspergillus flavus suspended in distilled water and cooled rapidly to -70 to -75 degrees C. was found to depend primarily on the rate of subsequent warming of the frozen suspension. Only 7 per cent of the spores germinated following slow warming at 0.9 degrees C. per minute, whereas about 75 per cent germinated following rapid warming at 700 degrees C. per minute. 2...
متن کاملStudies on Aspergillus Flavus: I. Biological Properties of Crude and Purified Aspergillic Acid.
In 1940 White (1940) described a strain of Aspergillus flavus which showed antibacterial activity against both gram-positive and gram-negative bacteria. A culture of this strain was obtained through the kindness of Dr. White. The following report deals with certain biological experiments carried out with this mold, with crude filtrates containing soluble products obtained from its growth, and w...
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: Journal of Bacteriology
سال: 1943
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.45.5.461-469.1943