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A NEW METHOD FOR THE PREPARATION AND EXAMINATION OF PERFORATED RAY CELLS

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This paper describes a simple technique borrowed from paleopalynology to produce increased concentrations of perforated ray cells and to isolate them from fibers and vessel elements. The technique provides very clear slides with only parenchyma cells and perforated ray cells. The perforated ray cells are easily distinguished and occur in frequencies of up to 10 perforated cells per square centimeter. The methods described includes the maceration of wood material, separation of cells with granulometrical sieves and measurements of cell dimensions. After separation of parenchyma cells from vessels and fibers the suspension is concentrated by centrifugation. With these methods, perforated ray cells may be more easily compared among plant groups.

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/content/journals/10.1163/22941932-90000308
2002-01-01
2016-12-02

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