Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/47055
Title: Selection for NaCl Tolerance in Cell Culture of Three Canary Island Tomato Land Races. II. Inorganic Ion Content in Tolerant Calli and Somaclones
Authors: Garcia-Blairsy Reina, Guillermo 
Moreno, V.
Luque, A. 
UNESCO Clasification: 2417 Biología vegetal (botánica)
Keywords: Lycopersicon
NaCl-tolerance
Callus
Ionic contents
Issue Date: 1988
Publisher: 0176-1617
Journal: Journal of Plant Physiology 
Abstract: The concentration of inorganic ions (Na , K +, Ca , Mg , Cl , and NO ) in seedlings, morphogenetic calli and somaclones from three Canary Island (Spain) tomato land races was analyzed. MS medium supplemented with 1.2, 2.4, 3.6, and 5.8 g/1 NaCl were used. Raising the NaCl concentration of the media increased the endogenous concentration of Na and Cl in all plant material analyzed. Na and Cl concentration were higher in morphogenetic calli than in seedlings and higher in somaclones than in the morphogenetic calli from which they were derived. The decrease in NO ) and K did not correlate with the increase in Na and CI . Calcium and Mg contents did not vary significantly with NaCl increase. The tolerance of the selected phenotypes seems to be related to a mechanism that controls the internal osmotic potential by increasing CI and Na concentrations while preventing the cells from their toxic effect.
URI: http://hdl.handle.net/10553/47055
ISSN: 0176-1617
DOI: 10.1016/S0176-1617(88)80076-2
Source: Journal of Plant Physiology [ISSN 0176-1617], v. 133, p. 7-11
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