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Wolverhampton Intellectual Repository and E-Theses > Research Institutes > Research Institute in Healthcare Science > Cancer Research Group > Isotropic growth of spores and salt tolerance in Aspergillus nidulans

Please use this identifier to cite or link to this item: http://hdl.handle.net/2436/22174
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Title: Isotropic growth of spores and salt tolerance in Aspergillus nidulans
Authors: O'Mahony, Roy J.
Burns, Alan T. H.
Millam, Steve
Hooley, Paul
Fincham, Daron A.
Citation: Mycological Research, 106(12): 1480-1486
Publisher: Elsevier Science Direct
Journal: Mycological Research
Issue Date: 2002
URI: http://hdl.handle.net/2436/22174
DOI: 10.1017/S0953756202006949
Additional Links: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B7XMR-4RS503B-H&_user=1644469&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000054077&_version=1&_urlVersion=0&_userid=1644469&md5=2e0b4b38dd650371d958f31e75186d76
Abstract: We report an investigation into the relationship between Aspergillus nidulans mutations sltA1 and agaA50 conferring salt sensitivity and arginase deficiency, respectively, and the ability of spores to swell and commence germination. Spores from both mutant strains exhibited uncontrolled swelling at pH 5.5 in the presence of arginine as the nitrogen source. The controlled swelling of spores from a salt tolerant strain under these conditions was disrupted by the Na+/H+ exchange inhibitor amiloride. Swelling in the presence of amiloride was associated with an elevation in the concentration of arginine within the spores of each strain tested. The possible consequences of alterations in the arginine economy of the spore for colony establishment in osmotically challenged habitats are discussed.
Type: Article
Language: en
Keywords: Aspergillus nidulans
Isotropic growth
Spores
Salt tolerance
ISSN: 09537562
14698102
Appears in Collections: Cancer Research Group

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