Abstract
Influx and efflux of phosphate has been measured for roots of white clover and perennial ryegrass. Efflux was consistently and substantially lower in ryegrass. For plants deprived of phosphate for 5 days, the initial rates of influx were significantly higher for ryegrass. It is concluded that higher rates of efflux may be a significant factor in the poorer ability of white clover to compete for phosphate.
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References
Bieleski, R.L. (1973) Phosphate pools, phosphate transport, and phosphate availability. Annual Reviews of Plant Physiology, 24, 225–252.
Bieleski, R.L. and Lauchli, A. (1992) Phosphate uptake, efflux and deficiency in the water fern Azolla. Plant, Cell, and Environment, 15, 665–673.
Cogliatti, D.H. and Clarkson, D.T. (1983) Physiological changes and phosphate uptake by potato plants during development of, and recovery from phosphate deficiency. Physiologia plantarum, 58, 287–294.
Dunlop, J. and Hart, A.L. (1987) Mineral nutrition. in M.J. Baker and W.M. Williams (eds.), White Clover, C.A.B. International, Wallingford, pp 153–183.
Dunlop, J., Phung, H.T., Meeking, R., and White, D.W.R. (1997) The kinetics associated with phosphate absorption by Arabidopsis and its regulation by phosphorus status. Australian Journal of Plant Physiology, 24, 623–629.
Macklon, A.E.S. and Sim, A. (1992) Modifying effects of a non-toxic level of aluminium on phosphate fluxes and compartmentation in root cortex cells of intact ryegrass seedlings. Journal of Experimental Botany, 43, 14831490.
Mouat, M.C.H. (1983) Phosphate uptake from extended soil solutions by pasture plants. New Zealand Journal of Agricultural Research, 26, 483–487.
Reay, P.F. and Waugh, C. (1981) Mineral-element composition of Lupinus albus and Lupinus angustifolius in relation to manganese accumulation. Plant and Soil, 60, 435–444.
Schwinning, S. and Parsons, A.J. (1996) A spatially explicit population model of stoloniferous N-fixing legumes in grazing systems. Journal of Ecology, 84, 799–813.
Shimogawara, K. and Usuda, H. (1995) Uptake of inorganic phosphate by suspension-cultured tobacco cells: kinetics and regulation by Pi starvation. Plant Cell Physiology, 36, 341–351.
Silberbush, M. And Barber, S.A. (1983) Sensitivity of simulated phosphorus uptake to parameters used by a mechanistic-mathematical model. Plant and Soil, 74, 93–100.
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© 1999 Springer Science+Business Media Dordrecht
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Dunlop, J., Phung, T. (1999). Efflux and Influx as Factors in the Relative Abilities of Ryegrass and White Clover to Compete for Phosphate. In: Gissel-Nielsen, G., Jensen, A. (eds) Plant Nutrition — Molecular Biology and Genetics. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-2685-6_14
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DOI: https://doi.org/10.1007/978-94-017-2685-6_14
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-5225-4
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