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Roots and leafs hysto-anatomy of Cymbidium hybridum cultivated „in vitro” and „ex vitro”

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Author(s): Adriana PETRUS-VANCEA | Monica SIPOS

Journal: Analele Universitatii din Oradea, Fascicula Biologie
ISSN 1224-5119

Volume: TOM XVI;
Issue: 2;
Start page: 115;
Date: 2009;
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Keywords: Cymbidium | hysto-anatomy | vitroculture | exvitroculture

ABSTRACT
In this experiment we tried to found structural differences of Cymbidium hybridum roots and leaflets depending on culture conditions (“in vivo”, “in vitro” or “ex vitro”). At the end of the experiment we concluded that there are no structural differences between plants, except the normal ontogenetic changes. So, at the level of “in vivo” roots were observed many conductive fascicle, comparatively with “in vitro” or “ex vitro” roots, and at the “in vivo” and the “ex vitro” roots structure was identified the methaxylem, while, at the “in vivo” roots, this elements does not appear. The vitro- and exvitroleaflets mark a low chloroplast density, comparatively with control lots (“in vivo” cultivated leafs).
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