Results 251 to 260 of about 64,930 (295)

Aflatoxins in mutants of Aspergillus flavus

Mycopathologia et Mycologia Applicata, 1974
Mutants ofAspergillus flavus were recovered following the irradiation of conidia with ultraviolet light. Analysis of the mutants for aflatoxins B1, B2, G1, and G2 indicated a wide range of variability in aflatoxin levels. None of the isolates produced the G toxins, and four produced little or no aflatoxin B2.
Laurie L. Leaich, K. E. Papa
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Intracellular hydrolases of Aspergillus, parasiticus and Aspergillus, flavus

Biochemical and Biophysical Research Communications, 1989
When the distribution profile of hydrolases in mycelial homogenates and culture filtrates of A. parasiticus and A. flavus was examined, six hydrolytic enzymes viz. N-acetyl-beta-glucosaminidase, aryl sulfatase, alkaline proteinase, cathepsin B, cathepsin D and aminopeptidase were detected in homogenate. The culture filtrates were devoid of any activity
Arun Sharma, S.R. Padwal-Desai, V. Ninjoor   +2 more
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Aspergillus flavus sinusitis in ALL

American Journal of Hematology, 2008
A 17-year-old girl with ALL developed acute onset left eye swelling and facial pain on day 23 of phase II of the UKALL XII protocol. She had been neutropaenic for 14 days at this time. She had neutropenic fever since day 17 with no obvious cause for this identified up to the time facial swelling appeared. This occurred despite broad-spectrum antibiotic
Keane, Colm, Colreavy, Michael, Lynch, Maureen, O'Gorman, Peter   +3 more
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Endocarditis due to Aspergillus flavus

Mycoses, 1997
Summary. Fungal endocarditis has emerged as an important complication of patients undergoing cardiovascular surgery. Our patient had no past history of cardiac surgery, intravenous drug abuse or immunosuppressive therapy. He had received broad‐spectrum antibiotics for varying periods, which might have predisposed him to this infection.
Z. U. Khan, I. Vislocky, H. Shuhaiber, S.C. Sanyal, Abdulatif Salama, Eiman Mokaddas, Jehoram T. Anim   +6 more
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The Parasexual Cycle in Aspergillus Flavus

Mycologia, 1973
(1973). The Parasexual Cycle in Aspergillus Flavus. Mycologia: Vol. 65, No. 5, pp. 1201-1205.
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Aspergillus flavus endocarditis in a child with neuroblastoma

Journal of Infection, 1998
We report a case of Aspergillus flavus endocarditis in a 6-year-old boy with stage IV neuroblastoma with no pre-existing cardiac disease. The infection was successfully treated with high-dose liposomal amphotericin (AmBisome) once daily. Recurrence was prevented with itraconazole oral solution once daily as maintenance therapy.
Kennedy, H. F., Simpson, E. M., Wilson, N., Richardson, M. D., Michie, J. R.   +4 more
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Biotransformation of Imperatorin by Aspergillus flavus

Journal of Natural Products, 2004
Imperatorin (1) was metabolized by Aspergillus flavus, in growth media, to give five metabolites. On the basis of their physical data, the structures of the five metabolites were elucidated as xanthotoxol (2), E-trichoclin (3), Z-trichoclin (4), E-imperatorin acid (5), and Z-imperatorin acid (6); among these, 4, 5, and 6 were characterized as new ...
Ray-Ling Huang, Chien-Chih Chen, Ren-Shih Chung, Wen-Yuh Teng, Yu-Ling Huang   +4 more
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Sexual reproduction inAspergillus flavus

Mycologia, 2009
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.
Bruce W. Horn, Geromy G. Moore, Ignazio Carbone   +2 more
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Characterization of the velvet regulators in Aspergillus flavus

Journal of Microbiology, 2018
Fungal development and secondary metabolism are closely associated via the activities of the fungal NK-kB-type velvet regulators that are highly conserved in filamentous fungi. Here, we investigated the roles of the velvet genes in the aflatoxigenic fungus Aspergillus flavus. Distinct from other Aspergillus species, the A.
Tae-Jin Eom, Jae-Hyuk Yu, Jae-Hyuk Yu, Hee-Soo Park, Heungyun Moon   +4 more
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New metabolites of Aspergillus flavus

Tetrahedron, 1969
Abstract Two pigments have been isolated from a yeast culture of A. flavus. One of these is identical with a tetrahydroxy-anthraquinone previously isolated from A. versicolor, the other being versicolorin C. The culture medium also yielded small amounts of aflatoxins M1 and GM1 and also a new compound, designated aflatoxin B3, and for which a ...
J.G. Heathcote, Michael F. Dutton
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