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Flow Cytometric and Microscopic Analysis of the Effect of Tannic Acid on Plant Nuclei and Estimation of DNA Content
Author(s) -
João Loureiro,
Eleazar Rodriguez,
Jaroslav Doležel,
Conceição Santos
Publication year - 2006
Publication title -
annals of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.567
H-Index - 176
eISSN - 1095-8290
pISSN - 0305-7364
DOI - 10.1093/aob/mcl140
Subject(s) - tannic acid , biology , propidium iodide , nuclear dna , dna , lysis , pisum , tris , staining , microbiology and biotechnology , lysis buffer , fluorescence , biochemistry , botany , chromatography , biophysics , genetics , mitochondrial dna , apoptosis , chemistry , programmed cell death , physics , quantum mechanics , gene
Flow cytometry (FCM) is extensively used to estimate DNA ploidy and genome size in plants. In order to determine nuclear DNA content, nuclei in suspension are stained by a DNA-specific fluorochrome and fluorescence emission is quantified. Recent studies have shown that cytosolic compounds may interfere with binding of fluorochromes to DNA, leading to flawed data. Tannic acid, a common phenolic compound, may be responsible for some of the stoichiometric errors, especially in woody plants. In this study, the effect of tannic acid on estimation of nuclear DNA content was evaluated in Pisum sativum and Zea mays, which were chosen as model species.

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