Formation and deposition of tannins in Quebracho colorado (Schinopsis balansae Engl.)

Abstract

In Quebracho colorado heartwood tannins are located in the lumina of most parenchyma cells, fibres and vessels. Formation and deposition of the tannins were studied by electron microscopy. In parenchyma cells phenolic compounds first occur at the inner and outer side of the membranes of vacuoles. Later, these vacuoles are completely filled with dark stained… (More)
DOI: 10.1007/BF02716388

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