PHYSIOLOGICAL RESPONSE OF NATIVE ECOTYPES OF CLADOPHORA GLOMERATA (L.) KÜTZING (CHLOROPHYCEAE) IN RELATION TO SALINITY

Document Type : Original Article

Authors

Department of Botany, Faculty of Science, University of Alexandria, Egypt

Abstract

The effect of different salinities on intracellular minerals, total carbohydrates, soluble sugars, insoluble sugars, ammonia, amides, nitrates, proline, protein and total nitrogen contents of Cladophora glomeratawas studied. The results revealed that osmoregulation mechanism in this species was only in part via mineral ions concentrations and mainly via proline production. The results suggest Cladophora glomerata as a “salinity generalist” species (a species that able to maintain fitness in a wide range of salinities).

Keywords

References

Abdel-Basset, R. (1986). Photosynthesis and some related metabolic processes as influenced by salinization treatment. Ph. D. thesis, Faculty of Science, Assuit University, Assuit, Egypt.
Abdel-Kareem, M. S. M. (1997). Growth and osmoregulation of Chlorella salina and Dunaliella salina under the interaction of salinity and inorganic nitrogen sources. Journal of the Union of Arab Biologists Cairo 4(B) Botany, 85-103.
Abdel-Rahman, M. H. M.; Ali, R. M. and Said, H. A. (2005). Alleviation of NaCl-induced effect on Chlorella vulgaris and Chlorococcum humicola by riboflavin application. International Journal of Agriculture and Biology, 7(1):58-62.
Allam, M. M. (1989). Studies on the contribution of organic solutes to osmotic balance in Enteromorpha intestinalis (L.) Link. M. Sc. thesis, Faculty of Science, Alexandria University, Alexandria, Egypt.
Allam, M. M. (1994). Studies on native ecotypes of Enteromorpha intestinalis under salinity stress. Ph. D. thesis, Faculty of Science, Alexandria University, Alexandria, Egypt.
Bates, L. S.; Waldern, R. R. and Teare, I. D. (1973). Rapid determination of free proline for water stress studies. Plant Physiology, 39:205-207.
Barakat, S. T.; Hatata, M.; Shehata, S. and Addel, A. A. (1986). Effect of nitrogen starvation and nitrate application on some metabolic process in barley seedlings (Hordium vulgare L.). Bulletin of the Faculty of Science, Alexandria University, 26(4):15-31.
Boalch, G. T. (1961). Studies of Ectocarpus in culture. I. Introduction and methods of obtaining unialgal bacteria free cultures. Journal of Marine Biology, 41(2): 279-286.
Booth, R. L. and Lobring, L. B. (1973). Evolution of the autoanalyzer 11-A progress report. In: Advances in automated analysis 1972. Technician International Congress 8:7. Tarrytown New, York.
Chapman, S. B. (1976). Methods in Plant Ecology. Blackwell Scientific Publications, Oxford, John Wiley and Sons.
Ekelund, N. G. A. (2000). Interactions between photosynthesis and ‘light-enhanced dark respiration’ (LEDR) in the flagellate Euglena gracilis after irradiation with ultraviolet radiation. Journal of Photochemistry and Photobiology, 55(1):63-69.
El-Kenany, E. T. (2006). Phenotypic plasticity and genetic differentiation between ecological populations of Polygonum equisetiforme Sibth. & Sm. In Egypt. Ph. D.  thesis, Faculty of Science, Alexandria University, Alexandria, Egypt.
Fabregas, J.; Herrero, C.; Abalde, J.; Liano, R. and Cabezas, B. (1986). Biomass production and biochemical variability of the marine microalga Dunaliella tertiolecta (Dutcher) with high nutrient concentrations. Aquaculture, 53:101-113.
Fretwell, S. D. (1972). Population is a seasonal environment. Princeton University Press. Princeton.
Gonzalez, A. V. and Gianoli, E. (2004). Morphological plasticity in response to shading in three Convolvulus species of different ecological breadth. Acta Oecologia, 26:185-190.
Gorham, J. (1995). Mechanism of salt tolerance of halophytes. In: Halophytes and biosaline agriculture. (Eds.): R. Choch-Allah, C. V. Malcolm and A. Hamdy, 207-223. Marcel Dekker Inc. New York.
Gul, B. and Khan, M. A. (2008). Effect of compatible osmotic and plant growth regulators in alleviating salinity stress on seed germination of Allenrolfea occidentalis. Pakistan Journal of Botany, 40(5):1957-1964.
Hartee, E. F. (1972). Determination of protein: A modification of the Lowery method that gives a linear photometric response. Annals of Biochemistry, 48:422-427.
Imamul-Huq, S. M. and Larher, F. (1985). Dynamics of Na+ and proline accumulation in salt-treated   Vigna sinensis (L.) and Phaseolus aureus (L.). Plant Physiology, 119:133-147.
Johnson, C. M. and Ulrich, U. (1950). Determination of nitrate in plant material. Analysis, 22:1526-1531.
Kamer, K. and Fong, P. (2000). A fluctuating salinity regime mitigates the negative effects of reduced salinity on the estuarine microalga Enteromorpha intestinalis (L.) Link. Journal of Marine Biology and Ecology, 245(1):53-69.
Karestn, U. and Kirst, G. O. (1989). Intracellular solutes photosynthesis and respiration of the green alga Bilindingia minima in response to salinity stress. Botanica Acta,  102:123-128.
Karesten, U. and Kirst, G. O. (1990). Incomplete turgor pressure regulation in the terrestrial red alga Bostrychia scorpiods. Plant Science, 61:29-36.
Kirst, G. O. 1990. Salinity tolerance in ecotypic marine algae. Annual Review of Plant Physiology, 41:21-52.

Larkum, A. W. D. and Wood, W. F. (1993). The effect of UV-B radiation on photosynthesis and respiration of phytoplankton, benthic macroalgae and seagrasses. Photosynthesis Research, 36(1):17-23.

Lortie, C. J. and Aarssen, L. W. (1996). The specialization for phenotypic plasticity in plants. International Journal of Plant Science, 157(4):484-487.
Martins, I.; Oliveira, J. M.; Flindt, M. R. and Marques, J. C. (1999). The effect of salinity on the growth rate of the macroalga Enteromorpha intestinalis (Chlorophyta) in the Mondego estuary (west Portugal). Acta Oecologia, 20(4):259-265.
Muratl, T.; Akazaw, T. and Shikikon, F. (1968). Enzymic mechanism of starch break down in germinating rice seeds. Plant Physiology, 43:1899-1905.
Naguib, M. I. (1964). Effect of sevin ion carbohydrate and nitrogen metabolism during the germination of cotton seed. Indian Journal of Experimental Biology, 2:149-157.
Pintado, A.; Valladares, F. and Sancho, L. G. (1997). Exploring phenotypic plasticity in the lichen Ramalina capitata: morphology, water relations and chlorophyll content in north and south-facing populations. Annals of Botany, 80:345-353.
Rijstenbil, J. W.; Mur, L. R.; Wijnholds, J. A. and Sinke, J. J. (1989a). Impact of a temporal salinity decrease on growth and nitrogen metabolism of the marine diatom Skletonema costatum in continuous cultures. Marine Biology, 101:121-129.
Rijstenbil, J. W.; Wijnholds, J. A. and Sinke, J. J. (1989b). Implication of salinity fluctuations for growth and nitrogen metabolism of the marine diatom Ditylum brightwillii in comparison with Skletonema costatum. Marine Biology, 101:131-141.
Russell, G. and Balton, J. J. (1975). Euryhaline ecotype of Ectocarpus siliculosus. Lumyb. Estaurine Coastal and Marine Science, 3:91-94.
Saldana, A.; Gianoli, E. and Lusk, C. H. (2005). Ecophysiological response to light availability in three Blechnum species (Pteridophyta, Blechnaceae) of different ecological breadth. Oecologia, 145:252-257.
Schlichting, C. D. (1986). The evolution of phenotypic plasticity in plants. Annual Review and Ecology and Systematics, 17:667-693.
Simonsen, R. (1965). Okologische Benerkungen zu der zur Aerophilie der Datomeen. International Revueges de Hydrobiologie, 50:49-56.
Starr, R. C. (1978). The culture collection of algae at the University of Texas at Austin. Journal of Phycology, 14:47-100.
Stein, J. R. (1973). Hand-Book of phycological methods. Culture methods and growth measurement. 334-335. Cambridge University Press, London.
Steinger, T.; Roy, B. A. and Stanton, M. L. (2003). Evolution in stressfull environments ii. Adaptive value and costs of plasticity in response to low light in Sinapis arvensis. Journal of Evolutionary Biology, 16:313-323.
Sultan, S. E. (1995). Phenotypic plasticity and plant adaptation. Acta Botanica Neerlandica, 44:636-638.
Sultan, S. E. (2001). Phenotypic plasticity for fitness component in Polygonum species of contrasting ecological breadth. Ecology, 82(2):328-343.
Thomas, D. N.; Collirs, J. C. and Russell, G. (1990). Interpopulation difference in the salt tolerance of two Cladophora species. Estuarine Costal Shelf Science, 30:201-206.
Valladars, F.; Gianoli, E. and Gomez, J. M. (2007). Ecological limits to plant phenotypic plasticity. New Phytologist, 176:749-763.
van Kluenen, M. and Fischer, M. (2005). Constraints on the evolution of adaptive phenotypic plasticity in plants. New Phytologist, 166:49-60.
van Kluenen, M. and Fischer, M. (2007). Progress in the detection of costs of phenotypic plasticity in plants. New Phytologist, 176:727-730.
Ziska, L. H. and Teramura, A. H. (1992). CO2 Enhancement of Growth and Photosynthesis in Rice (Oryza sativa). Modification by Increased Ultraviolet-B Radiation. Plant Physiology, 99(2):473-481.

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