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Cultivable Bacterial and Fungal Endophytes from Apple Tissues and Their Potential for Biological Control of Venturia inaequalis

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dc.contributor.advisor Goodwin, Paul
dc.contributor.advisor Errampalli, Deena
dc.contributor.author Muresan, Lucia Emilia
dc.date.accessioned 2018-01-09T21:10:38Z
dc.date.available 2018-01-09T21:10:38Z
dc.date.copyright 2017-12
dc.date.created 2017-12-13
dc.date.issued 2018-01-09
dc.identifier.uri http://hdl.handle.net/10214/12168
dc.description.abstract ABSTRACT Cultivable bacterial and fungal endophytes from apple tissues and their potential for biological control of Venturia inaequalis Lucia Emilia Muresan Advisors: University of Guelph, 2017 Professor P.H. Goodwin Dr. D. Errampalli A collection of 55 bacterial isolates, mostly from roots (52%) or leaves/petioles (34%), and 60 fungal isolates, mostly from roots (78%) whereas none from leaves/petioles, was made from apple trees (Malus domestica) in Guelph, Simcoe and Vineland, Ontario. Half the bacteria were Bacillus species, and 60% of the fungi were Penicillium or Trichoderma species. However, the species were diverse in culture. For example, there were 7 colony types among 9 Bacillus aryabhattai isolates and 12 colony types among 16 Penicillium corylophilum isolates. For bacterial endophytes, 54 significantly inhibited growth of the apple scab pathogen, Venturia inaequalis in vitro, and the most effective was B. megaterium BRV13 with 100% inhibition. For fungal endophytes, 55 significantly inhibited growth of V. inaequalis in vitro, and the most effective was F. oxysporum FRS09 with 83% inhibition. This collection of endophytes shows that there is a diverse range of potential biological control agents for organic apple production. en_US
dc.description.sponsorship The funding for the work on this apple scab project is supported by the Organic Science Cluster II (OSCII; 2014-2018) to Dr. Deena Errampalli at Agriculture and Agri-Food Canada. OSCII is supported by the AgriInnovation Program of Agriculture and Agri-Food Canada's Growing Forward 2 (GF2) Policy Framework (a federal-provincial-territorial initiative). en_US
dc.language.iso en en_US
dc.subject plant pathology en_US
dc.subject endophytes en_US
dc.subject bacterial endophytes en_US
dc.subject fungal endophytes en_US
dc.title Cultivable Bacterial and Fungal Endophytes from Apple Tissues and Their Potential for Biological Control of Venturia inaequalis en_US
dc.type Thesis en_US
dc.degree.programme Environmental Sciences en_US
dc.degree.name Master of Science en_US
dc.degree.department School of Environmental Sciences en_US
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