Cultural characteristics of Crumenula sororia

As agar cultures of most Crumenula sororia Karst, isolates aged, the initially grey coloration darkened to olivaceous black with the development of a central umbo and a lighter fringe. Some isolates produced a copious exudate that diffused into the substrate. Optimum growth occurred in the temperatu...

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Main Authors: Hayes, A. J., Ahmad, Abdul Manap
Format: Article
Language:English
Published: British Mycological Society, Elsevier 1975
Online Access:http://psasir.upm.edu.my/id/eprint/39918/
http://psasir.upm.edu.my/id/eprint/39918/1/Cultural%20characteristics%20of%20Crumenula%20Sororia.pdf
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author Hayes, A. J.
Ahmad, Abdul Manap
author_facet Hayes, A. J.
Ahmad, Abdul Manap
author_sort Hayes, A. J.
building UPM Institutional Repository
collection Online Access
description As agar cultures of most Crumenula sororia Karst, isolates aged, the initially grey coloration darkened to olivaceous black with the development of a central umbo and a lighter fringe. Some isolates produced a copious exudate that diffused into the substrate. Optimum growth occurred in the temperature range 15–22·5°. As temperatures increased, all cultures were affected similarly, but as temperatures decreased isolate differences occurred, those from Pitmedden and the Netherlands being more severely restricted. The isolate from Pitmedden grew equally well in light and dark conditions, but those from Ringwood, Bramshill, Hallyburton and the Netherlands were favoured by darkness. With both solid and liquid media, growth was maximal in the pH range 4·0–7·0. C. sororia grew better on malt media than on those consisting of potato dextrose, Czapek Dox, Yeast extract or nutrient broth. The fungus usually produced submerged, opaque non-pigmented hyphae in liquid media excepting those with malt or yeast where hyphae were mainly aerial and darkly pigmented. Best growth of C. sororia on solid media occurred when ammonium nitrate was supplied as the nitrogen source, whereas in liquid media asparagine or glutamic acid were superior to any inorganic source. Maltose and lactose were not so readily assimilated as other carbohydrates. In solid media the optimum concentration of sucrose for growth was 10% whereas in liquid culture a positive response to 20 % sucrose was obtained. Growth of C. sororia in culture was stimulated by wood and bark extracts of Corsican pine, one of the host species of the fungus. Good growth of C. sororia was generally biotin dependent.
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spelling upm-399182015-09-29T01:41:31Z http://psasir.upm.edu.my/id/eprint/39918/ Cultural characteristics of Crumenula sororia Hayes, A. J. Ahmad, Abdul Manap As agar cultures of most Crumenula sororia Karst, isolates aged, the initially grey coloration darkened to olivaceous black with the development of a central umbo and a lighter fringe. Some isolates produced a copious exudate that diffused into the substrate. Optimum growth occurred in the temperature range 15–22·5°. As temperatures increased, all cultures were affected similarly, but as temperatures decreased isolate differences occurred, those from Pitmedden and the Netherlands being more severely restricted. The isolate from Pitmedden grew equally well in light and dark conditions, but those from Ringwood, Bramshill, Hallyburton and the Netherlands were favoured by darkness. With both solid and liquid media, growth was maximal in the pH range 4·0–7·0. C. sororia grew better on malt media than on those consisting of potato dextrose, Czapek Dox, Yeast extract or nutrient broth. The fungus usually produced submerged, opaque non-pigmented hyphae in liquid media excepting those with malt or yeast where hyphae were mainly aerial and darkly pigmented. Best growth of C. sororia on solid media occurred when ammonium nitrate was supplied as the nitrogen source, whereas in liquid media asparagine or glutamic acid were superior to any inorganic source. Maltose and lactose were not so readily assimilated as other carbohydrates. In solid media the optimum concentration of sucrose for growth was 10% whereas in liquid culture a positive response to 20 % sucrose was obtained. Growth of C. sororia in culture was stimulated by wood and bark extracts of Corsican pine, one of the host species of the fungus. Good growth of C. sororia was generally biotin dependent. British Mycological Society, Elsevier 1975-12 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/39918/1/Cultural%20characteristics%20of%20Crumenula%20Sororia.pdf Hayes, A. J. and Ahmad, Abdul Manap (1975) Cultural characteristics of Crumenula sororia. Transactions of the British Mycological Society, 65 (3). pp. 403-412. ISSN 0007-1536 10.1016/S0007-1536(75)80037-4
spellingShingle Hayes, A. J.
Ahmad, Abdul Manap
Cultural characteristics of Crumenula sororia
title Cultural characteristics of Crumenula sororia
title_full Cultural characteristics of Crumenula sororia
title_fullStr Cultural characteristics of Crumenula sororia
title_full_unstemmed Cultural characteristics of Crumenula sororia
title_short Cultural characteristics of Crumenula sororia
title_sort cultural characteristics of crumenula sororia
url http://psasir.upm.edu.my/id/eprint/39918/
http://psasir.upm.edu.my/id/eprint/39918/
http://psasir.upm.edu.my/id/eprint/39918/1/Cultural%20characteristics%20of%20Crumenula%20Sororia.pdf