scholarly journals Biosorption Model and Factors for Removing Lead to Aureobasdium pullulans being Imperfect Fungus

2006 ◽  
Vol 16 (6) ◽  
pp. 877-883
Keyword(s):  
Imperfect Fungus

A New Imperfect Fungus

Mycologia ◽  
1936 ◽  
Vol 28 (1) ◽  
pp. 82 ◽  
Author(s):  
A. G. Plakidas ◽  
C. W. Edgerton
Keyword(s):  
Imperfect Fungus

scholarly journals A Novel NAD-Dependent Dehydrogenase, Highly Specific for 1,5-Anhydro-d-Glucitol, from Trichoderma longibrachiatum Strain 11-3

2003 ◽  
Vol 69 (5) ◽  
pp. 2603-2607 ◽  
Author(s):  
Nobuyuki Yoshida ◽  
Etsuko Uchida ◽  
Tohoru Katsuragi ◽  
Yoshiki Tani
Keyword(s):  
Polyacrylamide Gel Electrophoresis ◽  
Sodium Dodecyl ◽  
Gel Filtration ◽  
Enzyme Reaction ◽  
Cell Extract ◽  
Physiological Level ◽  
Trichoderma Longibrachiatum ◽  
Sds Page ◽  
Imperfect Fungus ◽  
The Relationship

ABSTRACT A novel NAD-dependent dehydrogenase highly specific for 1,5-anhydro-d-glucitol (1,5-AG) was found in the cell extract of an imperfect fungus, Trichoderma longibrachiatum strain 11-3. This fungus used 1,5-AG as a sole carbon source for growth and transformed 1,5-AG into glucose. 1,5-AG dehydrogenase (AGH) was purified to homogeneity, as determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). The molecular mass of the purified enzyme was estimated to be 36 and 141 kDa by SDS-PAGE and by gel filtration, respectively, suggesting that the enzyme was homotetrameric. The enzyme was highly specific for 1,5-AG and did not exhibit activity with any sugar or sugar alcohol tested in this study other than 1,5-AG. A linear relationship between the initial rate of the enzyme reaction and the concentration of 1,5-AG at the physiological level was observed. The presence of glucose in abundance did not interfere with the relationship. The optimum temperature for the enzyme reaction was 50°C, and the enzyme was stable at temperatures up to 70°C. These results suggested that AGH is a novel enzyme and is useful for specifically diagnosing diabetes mellitus.

A GROWTH INHIBITOR PRODUCED BY CRYPTOSPORIOPSIS SP., AN IMPERFECT FUNGUS ISOLATED FROM YELLOW BIRCH, BETULA ALLEGHANIENSIS BRITT.

1966 ◽  
Vol 44 (3) ◽  
pp. 259-267 ◽  
Author(s):  
M. A. Stillwell
Keyword(s):  
Abies Balsamea ◽  
Growth Inhibitor ◽  
Dutch Elm Disease ◽  
Malt Extract ◽  
Betula Alleghaniensis ◽  
Yellow Birch ◽  
Fomes Fomentarius ◽  
Imperfect Fungus ◽  
The Difference ◽  
Mycelial Suspension

In plate culture, Cryptosporiopsis sp. inhibited growth of 31 basidiomycetes isolated from decay in coniferous and deciduous trees; an ascomycete, the Dutch elm disease fungus; and a phycomycete, the potato late blight fungus. In liquid malt extract medium, Cryptosporiopsis sp. produced a substance highly inhibitory to Fomes fomentarius (L. ex Fr.) Kickx, the fungus most commonly associated with decay in living branches of yellow birch, Betula alleghaniensis Britt. Growth of F. fomentarius was also inhibited markedly by the presence of Cryptosporiopsis sp. in sterile yellow birch wood. In unsterile, peeled logs of balsam fir, Abies balsamea (L.) Mill., the amount of decay was significantly reduced in those treated with an application of a water suspension of mycelial fragments of Cryptosporiopsis sp. In unsterile, unpeeled logs there was also less decay in those treated with the mycelial suspension of Cryptosporiopsis sp.; however, the difference between the treated and untreated logs was not significant.

Pigments of the genus Beauveria

1968 ◽  
Vol 46 (4) ◽  
pp. 441-448 ◽  
Author(s):  
Sohair H. El Basyouni ◽  
D. Brewer ◽  
L. C. Vining
Keyword(s):  
Nitrogen Source ◽  
Ammonium Tartrate ◽  
Zinc Ions ◽  
Manganese Ions ◽  
Optimum Yield ◽  
Excess Nitrogen ◽  
Carbon:Nitrogen Ratio ◽  
Minimum Requirements ◽  
Imperfect Fungus ◽  
Yellow Pigments

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. Their distribution did not follow species lines. In cultures of a B. tenella isolate which produced both red and yellow pigments the optimum yield of oosporein was obtained with a glycerol–nitrate–salts medium and was unaffected by excess nitrogen source. Zinc ions stimulated and manganese ions depressed production. The optimum yield of bassianins occurred on a glucose – ammonium tartrate – salts medium with a high carbon:nitrogen ratio. Phosphate, above minimum requirements for growth, did not strongly influence the yield of either pigment. On a medium in which both oosporein and bassianins were produced, oosporein was formed first. Bassianins were accumulated rapidly only after depletion of the nitrogen source.

A broad-spectrum antibiotic produced by a species of Cryptosporiopsis

1969 ◽  
Vol 15 (6) ◽  
pp. 501-507 ◽  
Author(s):  
M. A. Stillwell ◽  
F. A. Wood ◽  
G. M. Strunz
Keyword(s):  
Staphylococcus Aureus ◽  
Chemical Properties ◽  
Growth Inhibitor ◽  
Molecular Formula ◽  
Physical And Chemical Properties ◽  
Broad Spectrum Antibiotic ◽  
Imperfect Fungus ◽  
Physical And Chemical ◽  
And Chemical Properties

A growth inhibitor with the molecular formula C10H10O4Cl2 was isolated from a medium which had supported growth of a species of Cryptosporiopsis, an imperfect fungus. The compound was named cryptosporiopsin and was characterized on the basis of its physical and chemical properties. Cryptosporiopsin was active in vitro against many wood-rotting basidiomycetes as well as some phycomycetes, ascomycetes, and deuteromycetes. It was more effective than Dithane M-22 or nystatin against the in vitro spore germination of Phytophthora infestans. It was active to varying degrees against six species of bacteria. Cryptosporiopsin was compared with Orbenin and streptomycin against a penicillin-resistant strain of Staphylococcus aureus.

Sign in / Sign up

Export Citation Format

Share Document