Studies on the Vitamin Nutrition of Allescheria Boydii Shear

Villela, Gilberto G.; Cury, Amadeu

doi:10.1128/jb.59.1.1-11.1950

Cited by 10 publications

(4 citation statements)

References 23 publications

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“…It is seen that only A376 and the known-deficient control, Neurospora crassa, were stimulated by the added biotin. This deficiency for A376 is in agreement with that reported by Villela and Cury (1950a). The 10 strains morphologically characteristic of A. boydii and M. apiospermum grew equally well with and without this factor.…”

Section: Resultssupporting

confidence: 91%

“…Our results agree with those of Wolf, et al (1950) and of Benham and Georg (1948) in demonstrating that Allescheria boydii does not require added vitamins for optimum growth in chemically defined artificial media. The organism reported by de Area Leao and Cury (1950) and by Villela and Cury (1950a) to be deficient for biotin, a deficiency which is confirmed in the present work, is quite obviously not typical of A. boydii. In reporting subsequently that four additional strains of A. boydii investigated by them grew "without biotin," Villela and Cury (1951) stated, "We believe that our strain No.…”

Section: Discussionsupporting

confidence: 76%

“…The purple and orange pigments of strain A376, which were analyzed chemically by Villela and Cury in another paper (1950b), and which were evident in our cultures of this isolate, GORDON are characteristic of Cephalosporium and do not correspond to the "greenish-ochraceous" and "smoky-brown" coloration observed by Shear. In addition, the optimum temperature and pH requirements determined by Villela and Cury (1950a) for their strain differ markedly from those determined by Wolf et al (1950) with their culture of M. apiospermum.…”

Section: Discussionmentioning

confidence: 76%

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NUTRITION AND SPORULATION OF ALLESCHERIA BOYDII

Gordon

1957

J Bacteriol

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There have been few reports concerning the nutritional requirements of the pathogenic ascomycete, Allescheria boydii, or of its imperfect form, Monosporium apiospermum. Benham and Georg (1948) found that a strain of A. boydii isolated by Gay and Bigelow (1930) from a case of mycetoma was autotrophic for growth factors. They cultured it on a dextrose agar containing asparagine as the sole nitrogen source and observed formation of fertile perithecia. Wolf et al. (1950) conducted a detailed nutritional study of a single strain of M. apiospermum and found that it grew well in Czapek's solution without the addition of growth factors. These authors also investigated carbon and nitrogen utilization by this mold, as well as pH and temperature requirements. However, de Area Leao and Cury (1950) and Villela and Cury (1950a) reported a biotin deficiency in a strain of A. boydii whose cultural history dated back to the original isolate of Shear (1922). They obtained no growth in a glucose-asparagine medium unless biotin was added. A single strain of M. apiospermum tested by them was found to have no vitamin deficiency. Villela and Cury (1951) subsequently stated that four additional strains of A. boydii tested grew without the addition of biotin. The study here reported originated partly as an attempt to resolve the above discrepancies and also to determine the effect of nutritional variation upon the formation of perithecia and coremia by different strains of A. boydii and M. apiospermum.

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Section: Resultssupporting

confidence: 91%

Section: Discussionsupporting

confidence: 76%

Section: Discussionmentioning

confidence: 76%

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NUTRITION AND SPORULATION OF ALLESCHERIA BOYDII

Gordon

1957

J Bacteriol

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“…A few studies have been performed on one of the causative agents of maduromycosis, Allescheria boydii (Monosporium apiospermum). It has been cultured on a glucose-asparagine-inorganic salts medium containing biotin (2,21,106). Villela and Cury (106) reported a pH of 4 to 5 and room temperature as optimal conditions, with no growth occurring at 37 C. They noticed that nicotinic acid and casein hydrolysate enhance growth, that cysteine and glutathione have no effect on growth, and that pyridoxine depresses growth.…”

Section: Nutrition Of Allescheria (M1onosporium)mentioning

confidence: 99%