Results 181 to 190 of about 30,401 (228)

Study of the virulence of some mutants of Beauveria brongniartii (= Beauveria tenella)

Journal of Invertebrate Pathology, 1979
Abstract Ten lipase-negative mutants from a lipase-positive virulent strain of Beauveria brongniartii were found to be avirulent, similar to lipase-negative strains isolated from nature. Two morphological mutants and four auxotrophic mutants which were lipase positive were also avirulent. Hypotheses to explain these results are presented.
Paris, S., Ferron, P.
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The Fungus Beauveria tenella

Science, 1962
Beauveria tenella, an insect pathogen, grows well and sporulates freely in submerged culture. Enzymes that loosened bovine hair that were found in broth cultures were not produced in the presence of chitin, and substitution of peptone broth for peptone-glucose broth did not increase their concentration. Under certain conditions,
T C, Cordon, J H, Schwartz
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Parasexuality in Beauveria bassiana

Journal of Invertebrate Pathology, 1991
Abstract The parasexual cycle of the Deuteromycete Beauveria bassiana is described. Diploids are presumably highly unstable and are not isolated, but haploid recombinants are directed recovered from the heterokaryon formed between auxotrophic strains.
L.D. Paccola-Meirelles, J.L. Azevedo
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Insecticidal Cyclodepsipeptides from Beauveria felina

Journal of Natural Products, 2011
A novel cyclodepsipeptide, iso-isariin B (1), and the known isaridin E (2) were isolated from the entomopathogenic fungus Beauveria felina. Their structures were elucidated using MS/MS fragmentation and extensive 2D-heteronuclear NMR. The X-ray structure of isaridin E was obtained, showing two potent intramolecular H bonds and a type-VI turn with the ...
Aude, Langenfeld, Alain, Blond, Sabelle, Gueye, Patrick, Herson, Bastien, Nay, Joëlle, Dupont, Soizic, Prado   +6 more
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Metabolism of xenobiotics by Beauveria bassiana

Xenobiotica, 1993
1. Diazepam, warfarin and testosterone were metabolized by whole resting cells of the fungus Beauveria bassiana IMI 12939 via oxidative reactions such as hydroxylation and N-demethylation. 2. Metabolism of each substrate was inhibited by the cytochrome P450 inhibitors SKF-525A and metyrapone, consistent with the involvement of this enzyme system in the
D A, Griffiths, D E, Brown, S G, Jezequel   +2 more
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Beauveria bassiana (Bals.-Criv.) Vuill.

2021
3.7. Microbial transformation using Beauveria bassiana 22864 Biotransformation of papaverine using Beauveria bassiana 22864 afforded to two metabolites: 5 and 6. The residue (1 g) was dissolved in 30 ml of methanol/dichloromethane mixture (1:1) and adsorbed onto 1 g Celite and dried.
Eliwa, Duaa, Albadry, Mohamed A., Ibrahim, Abdel-Rahim S., Kabbash, Amal, Meepagala, Kumudini, Khan, Ikhlas A., El-Aasr, Mona, Ross, Samir A.   +7 more
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Mycotic Keratitis due to Beauveria alba

Cornea, 1984
A 70-year-old white man developed mycotic keratitis following phacoemulsification and intraocular lens implantation. Extensive therapeutic surgery was necessary to control the infection. Beauveria alba, a saprophytic fungus, was cultured and demonstrated in the corneal button by histopathologic examination.
P J, McDonnell, T P, Werblin, L, Sigler, W R, Green   +3 more
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Medical Management of Beauveria bassiana Keratitis

Cornea, 2000
To describe a case of Beauveria bassiana keratitis and to discuss the management of this rare condition.An 82-year-old woman underwent surgical repair of a graft wound dehiscence. Seven months later, shortly after the removal of sutures, the patient developed a fungal keratitis. B. bassiana was identified as the infecting organism.
T A, Kisla, A, Cu-Unjieng, L, Sigler, J, Sugar   +3 more
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Heterocaryons chez Beauveria tenella

Mycopathologia, 1977
Differentes methodes pour obtenir des heterocaryons entre mutants auxotrophes ont ete utilisees. Seule la methode de fusion par le polyethylene glycol a donne des heterocayons; ces heterocaryons ont un rapport nucleaire inferieur a 1 et sont instables.
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Pigments of the genus Beauveria

Canadian Journal of Botany, 1968
Red coloring substances found in isolates of the imperfect fungus Beauveria were identified as the dibenzoquinone pigment oosporein. Yellow pigments were isolated from both B. bassiana and B. tenella cultures and found to be mixtures of similar compounds. Two types (designated tenellins and bassianins) occurred.
Basyouni, Sohair H. El, Brewer, D., Vining, L. C.   +2 more
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