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Uptake and translocation of calcium in cucumber
Author(s) -
Bengtsson Bengt
Publication year - 1982
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1982.tb06311.x
Subject(s) - chromosomal translocation , stele , cucumis , endodermis , shoot , calcium , botany , biology , chemistry , horticulture , biochemistry , organic chemistry , gene
Uptake and translocation of Ca 2+ ( 45 Ca) were compared with water translocation in 12‐day old intact plants and excised roots of cucumber ( Cucumis sativus L. var. Cilla), which had been cultivated in nutrient solution. No immediate reduction of Ca 2+ uptake was found when water translocation was reduced by excision of the shoot. In the presence of 2,4‐dinitrophenol Ca 2+ translocation was reduced in the intact plants while water translocation was unchanged. It is suggested that regulation of Ca 2+ uptake is primarily achieved in the root. The DNP‐sensitive mechanism of Ca 2+ uptake was associated with the root and probably represented transport through the endodermis into the stele.