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Enhanced calcium uptake in micropropagated potato plantlets by macroelement dilution
Author(s) -
Abdulnour Jihad E.,
Donnelly Danielle J.,
Barthakur Naya.
Publication year - 1998
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.1998.3581610113
Subject(s) - shoot , calcium , solanum tuberosum , dilution , murashige and skoog medium , micropropagation , botany , chemistry , solanaceae , horticulture , in vitro , biology , tissue culture , biochemistry , physics , organic chemistry , gene , thermodynamics
Ca deficiency disorders are common in micropropagated plantlets but little is known regarding the uptake of Ca in vitro. Ca uptake by in vitra‐grown potato ( Solanum tuberosum L. cvs. Bintje and Norland) plantlets was investigated when Ca levels were maintained but the total macroelement salts or just NH 4 , the major competing cation, were reduced in Murashige and Skoog (MS) medium. This increased the ratio of Ca:cations or Ca:NH 4 as well as the osmotic potential of the medium. The increased Ca‐cations improved Ca uptake of shoot tips, leaves, and stems while increased Ca:NH 4 had no effect. MS medium macroelement dilution may improve Ca uptake by micropropagated plantlets and prevent Ca deficiency disorders.