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dc.contributor.authorKrupke, Oliver A.en_US
dc.date.accessioned2009-07-14T19:41:44Z
dc.date.available2009-07-14T19:41:44Z
dc.date.issued2001-07-14T19:41:44Z
dc.identifier.urihttp://hdl.handle.net/10464/2295
dc.description.abstractThe aggressive mushroom competitor, Trichoderma harzianum biotype Th4, produces volatile antifungal secondary metabolites both in culture and during the disease cycle in compost. Th4 cultures produced one such compound only when cultured in the presence of Agaricus bisporus mycelium or liquid medium made from compost colonised with A. bisporus. This compound has TLC and UVabsorption and characteristics indicating that it belongs to a class of pyrone antibiotics characterised from other T. harzianum biotypes. UV absorption spectra indicated this compound was not 6-pentyl-2H-pyran-one (6PAP), the volatile antifungal metabolite widely described in Th1. Furthermore, this compound was not produced by Th1 under any culture conditions. Mycelial growth of A. bisporus, Botrytis cinerea and Sclerotium cepivorum was inhibited in the presence of this compound through volatility , diffusion and direct application. This indicates that Th4 produces novel, volatile, antifungal metabolites in the presence of A. bisporus that are likely involved in green mould disease of mushroom crops.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectMushrooms, Edibleen_US
dc.subjectMushroom culture.en_US
dc.subjectFungal metabolites.en_US
dc.subjectMetabolism, Secondary.en_US
dc.titleThe significance of volatile antifungal metabolites produced by trichomerma harzianum biotype Th4, in green-mould disease of commercial mushroom crops /en_US
dc.typeElectronic Thesis or Dissertationen
dc.degree.nameM.Sc. Biological Sciencesen_US
dc.degree.levelMastersen_US
dc.contributor.departmentDepartment of Biological Sciencesen_US
dc.degree.disciplineFaculty of Mathematics and Scienceen_US
refterms.dateFOA2021-08-07T02:32:25Z


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