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Tissular localization of coumarins in the green alga Dasycladus vermicularis (Scopoli) Krasser: a photoprotective role?
2003
Journal of Experimental Botany
Cell distribution of coumarins, a group of UV-absorbing substances, was analysed by epi¯uorescence optical microscopy in the green macroalga Dasycladus vermicularis. Maximal concentration of 3,6,7-trihydroxycoumarin (THC), which corresponds to almost 100% of the total coumarins in D. vermicularis, was found in the apical part of the thallus, which is more exposed to solar radiation. At a cell level, two blue, highly¯uorescent layers, corresponding to a large accumulation of THC, were found in
doi:10.1093/jxb/erg111
pmid:12598579
fatcat:vmps7eriffenjc2ikwh3wltn7y