This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Kurth, E. Articles by Epstein, E. Search for Related Content PubMed PubMed Citation Articles by Kurth, E. Articles by Epstein, E. Agricola Articles by Kurth, E. Articles by Epstein, E.

Articles

Effects of NaCl and CaCl₂ on Cell Enlargement and Cell Production in Cotton Roots ¹

Department of Land, Air and Water Resources, University of California, Davis, California 95616

In many crop species, supplemental Ca²⁺ alleviates the inhibition of growth typical of exposure to salt stress. In hydroponically grown cotton seedlings (Gossypium hirsutum L. cv Acala SJ-2), both length and weight of the primary root were enhanced by moderate salinities (25 to 100 millimolar NaCl) in the presence of 10 millimolar Ca²⁺, but the roots became thinner. Anatomical analysis showed that the cortical cells of these roots were longer and narrower than those of the control plants, while cortical cells of roots grown at the same salinities but in the presence of only 0.4 millimolar Ca²⁺ became shorter and more nearly isodiametrical. Cell volume, however, was not affected by salinities up to 200 millimolar NaCl at either 0.4 or 10 millimolar Ca²⁺. Our observations suggest Ca²⁺-dependent effects of salinity on the cytoskeleton. The rate of cell production declined with increasing salinity at 0.4 millimolar Ca²⁺ but at 10 millimolar Ca²⁺ was not affected by salinities up to 150 millimolar NaCl.

This article has been cited by other articles:

				G. Zolla, Y. M. Heimer, and S. Barak Mild salinity stimulates a stress-induced morphogenic response in Arabidopsis thaliana roots J. Exp. Bot., November 2, 2009; (2009) erp290v2. [Abstract] [Full Text] [PDF]

				G. West, D. Inze, and G. T.S. Beemster Cell Cycle Modulation in the Response of the Primary Root of Arabidopsis to Salt Stress Plant Physiology, June 1, 2004; 135(2): 1050 - 1058. [Abstract] [Full Text] [PDF]