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Effect of Calcium on Salt Tolerance of Leaf Epidermal Cells of Ruppia maritima at High Salinity

Published online by Cambridge University Press:  02 July 2020

A.D. Barnabas ,
R. Jagels ,
W.J. Przybylowicz  and
J. Mesjasz-Przybylowicz
A.D. Barnabas
Affiliation:
Department of Botany, University of Durban-Westville, Durban, 4000, South Africa
R. Jagels
Affiliation:
Department of Forest Ecosystem Science, University of Maine, Orono, ME04469-5755, USA
W.J. Przybylowicz
Affiliation:
Department of Botany, University of Durban-Westville, Durban, 4000, South Africa
J. Mesjasz-Przybylowicz
Affiliation:
Van de Graaff Group, National Accelerator Centre, P O Box 72, Faure 7131, South Africa
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Extract

Ruppia maritima L. is a submerged halophyte which occurs frequently in estuaries where sodium chloride is the dominant salt. Unlike terrestrial halophytes, R. maritima does not possess any specialised salt-secreting structures such as salt glands. Knowledge of salt tolerance mechanisms in this plant is important to our understanding of its biology. In a previous study it was shown that leaf epidermal cells of R. maritima, which possess transfer cell characteristics, are implicated in salt regulation. In the present investigation, the effect of calcium (Ca) on salt tolerance of leaf epidermal cells was studied since Ca has been found to be an important factor in resistance to salt stress in terrestrial plants.

Plants were grown in artificial seawater of high salinity (33%) and at two different Ca concentrations : 400 ppm (high Ca) and 100 ppm (low Ca).

Type
Botany/Plant Pathology
Information
Microscopy and Microanalysis , Volume 4 , Issue S2: Proceedings: Microscopy & Microanalysis '98, Microscopy Society of America 56th Annual Meeting, Microbeam Analysis Society 32nd Annual Meeting, Atlanta, Georgia July 12-16, 1998 , July 1998 , pp. 1174 - 1175
Copyright
Copyright © Microscopy Society of America

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References

1.Jagels, R. and Barnabas, A.D., Aquat. Bot., 33 (1989) 207.CrossRefGoogle Scholar
2.Lynch, J. et al., Plant Physiol, 83 (1987) 390.CrossRefGoogle Scholar