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Daily fluctuations in water potential and associated ionic changes in Atriplex canescens

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Summary

Water potential (Ψ) measurements of Atriplex canescens at the base of the Red Desert near Tipton in Wyoming, revealed a range between-15.5 to-45.1 bars. Minimum values coincided with the lowest air and soil temperatures, maximum with the greatest atmospheric evaporative demand. Change in Ψ exceeded 12 bars h-1 during periods of rapidly moving storm systems. Changes in Ψ appeared to be independent of plant size, age, sex, and the spatial location of plants. Chemical analyses revealed that xylem sap was up to three times more concentrated at high than at low Ψ. It was observed that the flow rate of sap was greater at lower than at higher Ψ and that the increase in water movement accounted for the dilution of the baseline concentration of sap solutes. Together, Ca, Mg, K and Na contributed 58% of the mean osmolality of the xylem sap; the dominant ions, however, were K and Cl. We suggest that the ability of the species to respond rapidly to changing atmospheric conditions affords it a distinct advantage in a harsh environment.

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References

  • Barrs HD (1968) Determinations of water deficits in plant tissues. In: Water Deficits and Plant Growth TT Kozlowski (ed.) New York: Academic Press, p 235–368

    Google Scholar 

  • Bayer LD, Gardner WH, Gardner WR (1972) Soil Physics. 4th ed New York: John Wiley and Sons

    Google Scholar 

  • Boyer JS (1969) Measurement of the water status of plant. Ann Rev Plant Physiol 20:351–364

    Google Scholar 

  • Branson FA, Miller RF, McQueen IS (1976) Moisture relationships in twelve northern desert shrub communities near Grand Junction, Colorado. Ecology 57:1104–1124

    Google Scholar 

  • Cannon HL (1971) The use of plant indicators in ground water surveys, geologic mapping and mineral prospecting. Taxon 20:127–157

    Google Scholar 

  • DePuit EF, Caldwell MM (1975) Gas exchange of three cool semi-desert species in relation to temperature and water stress. J Ecol 63:835–858

    Google Scholar 

  • Epstein E (1972) Mineral Nitrition of Plants. New York: John Wiley and Sons

    Google Scholar 

  • Fisher RA, Turner HC (1978) Plant productivity in the arid and semiarid zones. Ann Rev Plant Physiol 29:277–317

    Google Scholar 

  • Kramer PJ (1968) Plant and Soil Water Relationships. New York: McGraw-Hill

    Google Scholar 

  • Nobel PS (1974) Introduction to Biophysical Plant Physiology. San Francisco: W.H. Freeman and Co.

    Google Scholar 

  • Poole DK, Miller PC (1975) Water relations of selected species of chaparal and coastal sage communities. Ecology 56:1118–1128

    Google Scholar 

  • Richards LA (ed) (1954) Diagnosis and improvement of saline and alkali soils. USDA Handb 60

  • Rickard WH, Keough RF (1968) Soil-plant relationships of two steppe desert shrubs. Plant and Soil 24:205–212

    Google Scholar 

  • Ritchie GA, Hinckley TM (1975) The pressure chamber as an instrument for ecological research. Adv Ecol Res 9:165–254

    Google Scholar 

  • Safaya NM, Wali MK (1979) Growth and nutrient relations of a grasslegume mixture on sodic coal-mine spoil as affected by some amendments. Soil Sci Soc Amer J 43:747–753

    Google Scholar 

  • Scholander PG, Hammel HT, Bradstreet ED, Hemmingsen EA (1965) Sap pressure in vascular plants—negative hydrostatic pressure can be measured in plants. Science 148:339–346

    Google Scholar 

  • Scholander PF, Bradstreet ED, Hammel HT, Hemmingsen EA (1966) Sap concentrations in halophytes and some other plants. Plant Physiol 41:529–532

    Google Scholar 

  • Slatyer RO (1967) Plant-Water Relationships. New York: Academic Press

    Google Scholar 

  • Tromp, J (1979) Seasonal variations in the composition of xylem sap of apple with respect to K, Ca, Mg and N. Zeit. für Pflanzenphysiol 94:189–194

    Google Scholar 

  • Tyree MT, Hammel HT (1972) The measurement of the turgor pressure and the water relations of plants by the pressure-bomb technique. J Expt Bot 23:267–282

    Google Scholar 

  • Walter H, Lieth H (1960) Klimadiagramm Weltatlas. Gustav Fisher, Jena

    Google Scholar 

  • Walter H (1973) Vegetation of the Earth in Relation to Climate and the Ecophysiological Condition. Springer, New York

    Google Scholar 

  • Wambolt CL (1970) Mosture stress in woody plants of Wyoming as influenced by environmental factors. Ph.D. Disst., Univ of Wyoming

  • Varing RH, Cleary BD (1967) Plant moisture stress: Evaluation by pressure bomb. Science 155:1248–1254

    Google Scholar 

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Author notes

  1. Roger W. Ruess

    Present address: Biological Research Laboratories, Svracuse University, 130 College Place, 13210, New York, Syracuse, USA

Authors and Affiliations

  1. Department of Biology, University of North Dakota, 58202, Grand Forks, ND, USA

    Roger W. Ruess & Mohan K. Wali

  2. Project Reclamation, University of North Dakota, 58202, Grand Forks, ND, USA

    Roger W. Ruess & Mohan K. Wali

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  1. Roger W. Ruess
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  2. Mohan K. Wali
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Ruess, R.W., Wali, M.K. Daily fluctuations in water potential and associated ionic changes in Atriplex canescens . Oecologia 47, 200–203 (1980). https://doi.org/10.1007/BF00346821

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  • DOI: https://doi.org/10.1007/BF00346821

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