Pigment Production by Neurospora crassa in the Presence of para -Amino-benzoic Acid
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چکیده
منابع مشابه
Pigment Production by Neurospora crassa in the Presence of para-Amino-benzoic Acid.
Recent investigations of altered sulfonamide responses in Neurospora crassa (Emerson and Cushing, 1946) have disclosed that high concentrations of paminobenzoic acid (PABA) depressed and even inhibited the growth rate of various strains studied. The present paper reports observations upon a pigment produced by Neurospora crassa when growing in "minimal" medium (Beadle and Tatum, 1945) supplemen...
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The ability of Neurospora crassa FGSC 4335 in the biotransformation of hydrocortisone was investigated. The microorganism produced two major metabolites after incubation with the substrate for seven days. Each microbial product was purified chromatographically and identified on the basis of spectral data. The products were identified as 11?,17?,20?,21-tetrahydroxypregn-4-en-3-one (II) and 11?-h...
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Conidia of Neurospora crassa exhibit an ability to transport various amino acids against a concentration gradient. The conidial transport system has previously been characterized in terms of kinetics, competitions, and genetic control. This study describes the development of a new and highly active transport capability which is elaborated during the early stages of development but prior to evid...
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Para-Aminobenzoic acid is supported on silica gel via reaction of activated silica gel and p-aminobenzoic acid which is then converted to its manganese and cobalt salts. A mixture of the manganese and cobalt salts of the acid is used to catalyze allylic and benzylic alcohols to their corresponding carbonyl compounds in reasonable yields using oxygen or air. Reactions are clean and the catal...
متن کاملInteractions between amino acid transport systems in Neurospora crassa.
Mutants of Neurospora crassa, selected as resistant to l-canavanine and l-thialysine, are partially deficient in the uptake of basic amino acids. Neutral amino acids completely inhibit uptake of basic amino acids, and this inhibition is dependent on the activity of a neutral amino acid permease. In contradistinction, mutants resistant to 4-methyl-dl-tryptophan are partially deficient in the upt...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1948
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.55.4.551-554.1948