Abstract
Among the main features of plant specialized metabolism are cell- and tissue- specific expression and responsiveness to oxidative stress conditions. Although quantitative techniques have significantly improved over time, allowing higher levels of resolution in plant metabolic studies, such analyses are often expensive and/or require relatively large amounts of starting material. The following protocols offer a relatively simple way to survey specialized and related metabolites (total phenolics, flavonoids, lignins), as well as reactive oxygen species (superoxide and hydrogen peroxide), using light and fluorescence microscopy. Also, a step-by-step guide on how to quantify stained areas is provided. Through the association of qualitative and quantitative data, general patterns of molecule distribution across plant tissues may be inferred, allowing for the solving of biological questions, and contributing to hypothesis refinement. Eucalyptus microcuttings were chosen as plant material to exemplify how these protocols can provide useful data for the understanding of complex developmental processes, such as adventitious root formation, which may be influenced by specialized metabolites and redox conditions.
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Vilasboa, J., Da Costa, C.T., Mariath, J.E.d.A., Fett-Neto, A.G. (2022). Histochemical Localization of Phenolic Compounds and Reactive Oxygen Species in Eucalypt Microcuttings. In: Fett-Neto, A.G. (eds) Plant Secondary Metabolism Engineering. Methods in Molecular Biology, vol 2469. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-2185-1_3
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DOI: https://doi.org/10.1007/978-1-0716-2185-1_3
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