Results 181 to 190 of about 14,839 (201)

BIOENERGETICS OF AFLATOXIN BIOSYNTHESIS IN Aspergillus parasiticus

Journal of Food Science, 1980
ABSTRACT Variations in levels of adenine nucleotides during growth of A. parusiticus were studied under asparagine and zinc deficiency and correlated with aflatoxin biosynthesis. ATP levels decreased gradually from exponential to stationary phase but the reverse was true for
VIDYA M. RAO, S. SARASWATHY, K. K. MAGGON, T. A. VENKITASUBRAMANIAN   +3 more
openaire   +1 more source

Aspersitin-a new metabolite of aspergillus parasiticus

Tetrahedron Letters, 1983
Abstract The structure of aspersitin, a new metabolite of Aspergillus parasiticus was determined by X-ray analysis, and by spectroscopic measurements.
George Büchi, Manuel A. Francisco, William V. Murray, Traudel Kachholz, Arnold L. Demain, John F. Blount   +5 more
openaire   +1 more source

Oxidases in Aspergillus parasiticus in relation to aflatoxin biosynthesis

Toxicon, 1980
Abstract The effects of asparagine and zinc were studied on the nucleotide oxidases and lipid peroxidase during secondary biosynthesis in A. parasiticus . The activity of NADPH and NADH oxidases was higher in zinc deficient cultures as compared to those in sucrose-low salt cultures and under asparagine deficiency, thereby lowering the NADPH/NADP and
V M, Rao, K K, Maggon, T A, Venkitasubramanian   +2 more
openaire   +2 more sources

Anti-aspergillus Properties of Phytochemicals Against Aflatoxin Producing Aspergillus flavus and Aspergillus parasiticus

National Academy Science Letters, 2017
Aspergillus flavus and Aspergillus parasiticus are the major contaminants known to produce aflatoxins in food crops (maize, cotton, corn, peanuts and oil-seed). Nowadays various modified cultural practices are being utilized and explored to overcome food contamination problem.
Shraddha Tiwari, Nupur Gupta, Udayabanu Malairaman, Jata Shankar   +3 more
openaire   +1 more source

Ultrastructural studies of induced morphogenesis byAspergillus parasiticus

Medical Mycology, 1974
Vegetative development of Aspergillus parasiticus may follow two patterns of morphogenesis depending upon the presence or absence of manganese ions in the medium. This alteration of morphology is suggestive of a hyphal-yeastlike dimorphism. Aspects of this morphogenesis of A. parasiticus are illustrated and described.
R G, Garrison, K S, Boyd
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Trametes versicolor inhibits aflatoxin production by Aspergillus parasiticus

2003
The ability of lyophilised culture filtrates (LF) and mycelia extracts (ME) of 6 different isolates of Trametes versicolor grown in submerged cultures on 2 media, potato dextrose broth (PDB) and defined mineral media, to control aflatoxins biosynthesis by Aspergillus parasiticus was assayed.
ZJALIC, Slaven, FABBRI, Anna Adele, REVERBERI, Massimo, A. RICELLI, A. L'AURORA, FANELLI, Corrado   +5 more
openaire   +4 more sources

A highly efficient gene-targeting system for Aspergillus parasiticus

Letters in Applied Microbiology, 2008
To establish a system that greatly increases the gene-targeting frequency in Aspergillus parasiticus.The ku70 gene, a gene of the nonhomologous end-joining (NHEJ) pathway, was replaced by the nitrate reductase gene (niaD) in A. parasiticus RHN1 that accumulates O-methylsterigmatocystin (OMST).
openaire   +2 more sources

Structure of polygalactosamine produced by Aspergillus parasiticus.

Journal of biochemistry, 1981
The structure of polygalactosamine purified from the culture fluid of Aspergillus parasiticus AHU 7165 was studied. Partial acid hydrolysis of this polysaccharide, in which 55 to 65% of the monosaccharide residues were N-unsubstituted, gave a series of galactosamine oligosaccharides (dimer to hexamer) in a good yield.
H, Takada, Y, Araki, E, Ito
openaire   +1 more source

YAP1-like gene modulates aflatoxin biosynthesis in Aspergillus parasiticus

2006
In Aspergillus parasiticus Speare, NRRL 2999, lipoperoxide promotes aflatoxin biosynthesis in media favouring and not favouring their biosynthesis (potato dextrose broth -PDB- and Czapek dox broth -CD-, respectively). To stimulate oxidative stress in CD, cumene hydroperoxide (CH, 1 mM), a lipoperoxidation inducer, was used.
REVERBERI, Massimo, ZJALIC, Slaven, Alessandra Ricelli, PUNELLI, FEDERICO, FABBRI, Anna Adele, FANELLI, Corrado   +5 more
openaire   +4 more sources

Conversion of averufin into aflatoxins by Aspergillus parasiticus

Biochemistry, 1973
M T, Lin, D P, Hsieh, R C, Yao, J A, Donkersloot   +3 more
openaire   +2 more sources