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Optimising transient assays for studying the regulation of PPO gene expression in pineapple blackheart

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Zhou, Y., Jobin-Decor, M., Dahler, J., Wills, R., Underhill, S. and Graham, M.W. (2002) Optimising transient assays for studying the regulation of PPO gene expression in pineapple blackheart. Acta Horticulturae, 575 . pp. 595-601. ISSN 0567-7572

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Article Link: https://doi.org/10.17660/ActaHortic.2002.575.70

Abstract

To study factors influencing the development of pineapple blackheart we are undertaking functional analyses of a polyphenol oxidase promoter whose expression is induced in blackheart affected tissues. Since transgenic pineapple fruit take three years to develop, such an analysis must be undertaken using transient assays. In this report we describe experiments aimed at optimising a transient assay system using biolistic DNA delivery in pineapple fruit. Two factors are shown to be critical, namely the use of unmethylated plasmid DNAs prepared using dam- E. coli host strains, and the use of an internal standard to control for the inherent variability of transient expression assays.

Item Type:Article
Subjects:Plant culture > Fruit and fruit culture > Culture of individual fruits or types of fruit > Pineapple
Plant pests and diseases > Individual or types of plants or trees
Live Archive:12 Jan 2024 00:45
Last Modified:12 Jan 2024 00:45

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