University of Khartoum

Development-related changes in decay susceptibility and polygalacturonase inhibitor content of “Bartlett” pear fruit

Development-related changes in decay susceptibility and polygalacturonase inhibitor content of “Bartlett” pear fruit

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Title: Development-related changes in decay susceptibility and polygalacturonase inhibitor content of “Bartlett” pear fruit
Author: Abu-Goukh, A.A; Strand, L.L
Abstract: “Bartlett” pear fruits were inoculated at weekly intervals with three fungi (Penicillium expansum Botrytis cinerea and Dothiorella gregaria). Susceptibility of the fruit was assessed by following lesion growth. Very young fruits resisted fungal development. When fruits had reached approximately one-third of full size (8 weeks after full bloom) lesion development occurred. Penicillium expansum was first to develop and grew most rapidly at all stages of pear maturity but fruit resistance to the development of all three pathogens declined steadily with maturation. An inhibitor of fungal polygalacturonase was identified in extracts of pear fruits. As the fruits matured the concentration of this inhibitor decreased.
URI: http://khartoumspace.uofk.edu/handle/123456789/18783
Date: 2016-02-04


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