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ECOPHYSIOLOGY OF THE SAND SEDGE, CAREX ARENARIA L. III. XYLEM TRANSLOCATION AND THE OCCURRENCE OF PATCHES OF VIGOROUS GROWTH WITHIN THE CONTINUUM OF A RHIZOMATOUS PLANT SYSTEM
Author(s) -
Tietema T.,
Van Der AA F.
Publication year - 1981
Publication title -
acta botanica neerlandica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 0044-5983
DOI - 10.1111/j.1438-8677.1981.tb00399.x
Subject(s) - xylem , rhizome , botany , chromosomal translocation , biology , carex , shoot , cyperaceae , poaceae , biochemistry , gene
SUMMARY The older shoots on the rhizome of the sand sedge have a lower waterpotential than the younger ones closer to the rhizome tip. The xylem translocation stream, that runs through the rhizome in accordance with the gradient in waterpotential from tip to base, could be demonstrated in translocation experiments with acid fuchsine dye and lead (EDTA) chelate. The occurrence of patches of vigorous growth within the continuum of a sand sedge plant system can be explained by the properties of the xylem translocation system of the plant.