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Fungal enzymic activity degrading 1,4-α-D-glucans to 1,5-D-anhydrofructose
Abstract 1,5- d -Anhydrofructose, the precursor of the antibiotic pyrone microthecin in morels and other fungi, is produced in Morchella vulgaris by a novel enzymic activity, presumably a lyasic one,Expand
1,5-D-anhydrofructose, the precursor of the pyrone microthecin in Morchella vulgaris
Abstract The carbohydrate which, in various Discomycetes, is enzymatically converted under plasmolytic conditions to the antibiotic pyrone microthecin was isolated from a strain of Morchella vulgarisExpand
NEW ANTIBIOTICS FROM THE FUNGUS EPICOCCUM NIGRUM
An atmosphere isolate of the fungus Epicoccum nigrum was found to exhibit an activity against Staphylococcus aureus. A more active, non-sporulating variant of this strain was selected. From itsExpand
Enzymic activity degrading 1,4-α-d-glucans to ascopyrones P and T in Pezizales and Tuberales
Abstract When subjected to ‘activating’ plasmolytic treatments, several Ascomycetes exhibit an enzymic activity which degrades 1,4-α- d -glucans to 1,5- d -anhydrofructose, then converts this sugarExpand
New antibiotics from the fungus Epicoccum nigrum. I. Fermentation, isolation and antibacterial properties.
An atmosphere isolate of the fungus Epicoccum nigrum was found to exhibit an activity against Staphylococcus aureus. A more active, non-sporulating variant of this strain was selected. From itsExpand
Occurrence among macrofungi of the bioconversion of glucosone to cortalcerone
Abstract Bioconversion of glucosone to cortalcerone, first discovered in Corticium caeruleum , was found to occur in 43 macrofungi out of the 315 which were screened (13.65%). Relations withExpand
Fungal enzymic activity degrading 1,4-α-D-glucans to echinosporin (5-epipentenomycin I)
Abstract When subjected to ‘activating’ plasmolytic treatments, the Discomycete Peziza echinospora exhibits an enzymic activity which degrades 1,4-α- d -glucans to 1,5- d -anhydrofructose, and thenExpand
Proposed pathway to the pyrones cortalcerone and microthecin in fungi
Abstract Carbonyl forms of d -glucopyranosone, 1,5-anhydro- d -fructopyranose and d -xylopyranosone possess a three-carbon steric arrangement which could be acted on by the dehydratase(s) of theExpand
Cortalcerone, a new antibiotic induced by external agents in Corticium caeruleum
Abstract The antibacterial compound produced by the fungus Corticium caeruleum in response to external agents was identified as 2-hydroxy-6 H - 3-pyrone-2-carboxaldehyde hydrate, a new compound forExpand
Bioconversion of carbohydrates to unusual pyrone compounds in fungi: Occurrence of microthecin in morels
Abstract A bioconversion similar to the one that converts glucosone to the unusual pyrone cortalcerone in Corticium caeruleum was shown to occur in morels, which produce the alcohol homologue,Expand
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