| ascocarp | A fungus structure, of varying complexity, which bears asci and ascospores. Origin: G. Askos, bag, + karpos, fruit (05 Mar 2000) |
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| ascococcus | Origin: NL, fr. Gr. Bladder, bag + kernel. <biology> A form of micrococcus, found in putrid meat infusions, occurring in peculiar masses, each of which is inclosed in a hyaline capsule and contains a large number of spherical micrococci. Source: Websters Dictionary (01 Mar 1998) |
| ascogenous | Denoting ascus-bearing fungus hypha or cell. (05 Mar 2000) |
| ascogonium | The female cell in an ascomycete that is fertilised by the male cell. (05 Mar 2000) |
| Ascoli | Alberto, Italian serologist, 1877-1957. See: Ascoli reaction, Ascoli's test. (05 Mar 2000) |
| Ascoli reaction | A method for confirming the diagnosis of anthrax by means of a precipitin reaction which indicates the presence of heat-stable Bacillus anthracis antigen in the extracted tissue. (05 Mar 2000) |
| Ascoli's test | A precipitin test for anthrax using a tissue extract and anthrax antiserum. (05 Mar 2000) |
| Ascomycetes | A class of fungi characterised by the presence of asci and ascospores. Such fungi have generally two distinct reproductive phases, the sexual or perfect stage and the asexual or imperfect stage. Ajellomyces capsulatum and Ajellomyces dermatitidis are pathogenic members of this class. Origin: G. Askos, a bag, + mykes, mushroom (05 Mar 2000) |
| ascomycetous | Fungi related to the Ascomycota. (05 Mar 2000) |
| Ascomycota | A phylum of fungi characterised by the presence of asci and ascospores. Some mycologists have moved the class Ascomycetes to the phylum or division level. (05 Mar 2000) |
| ascomycotina | <fungus> A subdivision of true fungi commonly known as cup or sac fungi. They reproduce asexually through externally-produced spores called conidia and sexually with the aid of specialised sacs called asci. This division includes yeasts, morels, truffles, powdery mildews, ergot and fungi responsible for other plant diseases such as chestnut blight, peach leaf curl and dutch elm disease. (09 Oct 1997) |
| ascorbase | <enzyme> An enzyme that converts ascorbic acid to dehydroascorbic acid. Chemical name: L-Ascorbate:oxygen oxidoreductase Registry number: EC 1.10.3.3 (12 Dec 1998) |
| ascorbate | A salt or ester of ascorbic acid. Ascorbate oxidase, a copper-containing enzyme that catalyses the oxidation of l-ascorbic acid with O2 to l-dehydroascorbic acid. Some forms of ascorbate oxidase use NADP+ as well. Used as an antitumour enzyme. Synonym: ascorbase. (05 Mar 2000) |
| ascorbate oxidase | <enzyme> An enzyme that converts ascorbic acid to dehydroascorbic acid. Chemical name: L-Ascorbate:oxygen oxidoreductase Registry number: EC 1.10.3.3 (12 Dec 1998) |
| ascorbate peroxidase | <enzyme> Occurs in the stroma as a soluble form (sap28) and also in the thylakoids as membrane-bound form (sap22) in angiosperm chloroplasts Registry number: EC 1.11.1.11 Synonym: ascorbic acid peroxidase, l-ascorbic acid peroxidase, stromal ascorbate peroxidase, thylakoid-bound ascorbate peroxidase (26 Jun 1999) |