Diamine and polyamine catabolism controls plant development, resistance to pathogens and stress responses. Diamine and polyamine oxidases control the catabolism of diamines and polyamines, respectively. Two major routes of di–/polyamine catabolism exist: the terminal and the interconverting. The in vitro activity of each route is assayed by the colorimetric or chemiluminescent determination of hydrogen peroxide produced by oxidation of di–/polyamine substrates. However, these assays fail to estimate activity of individual di–/polyamine oxidase isoenzymes. Herein, I describe an assay for the simultaneous in-gel determination of terminal and interconverting di–/polyamine oxidase isoenzyme activities.
CITATION STYLE
Moschou, P. N. (2018). Determination of di–/polyamine oxidase activity in plants by an in-gel spermidine oxidation assay. In Methods in Molecular Biology (Vol. 1694, pp. 141–147). Humana Press Inc. https://doi.org/10.1007/978-1-4939-7398-9_14
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