Summary
Concentration dependence of net ammonium and nitrate uptake was monitored for a cultivar of tomato, Lycopersicon esculentum, and two accessions of a neotropical wild relative, L. hirsutum. The kinetics of net NH +4 uptake differed among these taxa and were not dependent on the ionic composition of the nutrient solution. The kinetics of net NO -3 uptake were dependent on the composition of the nutrient solution; the presence of NH +4 or Cl- enhanced net NO -3 uptake for the cultivated species and for a highland accession of the wild species. The capacity for net NO -3 uptake was greater than the capacity for net NH +4 uptake in all three taxa; the proportion of NO -3 to NH +4 absorbed was much greater for the wild taxa. Our data suggest that NO -3 may be a more important source of mineral nitrogen than NH +4 for these tropical taxa.
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References
Bernard-Reversat F (1982) Biogeochemical cycle of nitrogen in a semi-arid savanna. Oikos 38:321–332
Bloom AJ (1985) Wild and cultivated barleys show similar affinities for mineral nitrogen. Oecologia 65:555–557
Bloom AJ, Chapin FS III (1981) Differences in steady-state net ammonium and nitrate influx by cold and warm adapted barley varieties. Plant Physiol 68:1064–1067
Bloom AJ, Finazzo J (1986) The influence of ammonium and chloride on potassium and nitrate absorption by barley roots depends on time of exposure and cultivar. Plant Physiol 81:67–69
Broadbent FE, Tyler KB, Hill GN (1957) Nitrification of ammoniacal fertilizers in some California soils. Hilgardia 27:247–267
Caceres R, Diaz M, Herrera A, Rivera C, Cavero C, Aguilar N, Chang J (1984) Desarrollo y Aplication de Metodos Agrometeorologicos para el pronostico del Estado de los Cultivos en el Peru. AID/OFDA, Washington DC
Campbell CA, Ferguson WS, Warder FG (1970) Winter changes in soil nitrate and exchangeable ammonium. Can J Soil Sci 50:151–162
Clarkson DT, Hopper MJ, Jones LHP (1986) The effect of root temperature on the uptake of nitrogen and the relative size of the root system in Lolium perenne. 1. Solutions containing both NH +4 and NO −3 . Plant Cell Env 9:535–545
Cox WJ, Reisenauer HM (1973) Growth and ion uptake by wheat supplied nitrogen as nitrate, or ammonium, or both. Plant Soil 38:363–380
Deane-Drummond CE, Thayer JR (1986) Nitrate transport characteristics in Hordeum vulgare L. seedlings using three different tracer techniques. J Exp Bot 37:429–439
Deane-Drummond CE, Glass ADM (1983) Short term studies of nitrate uptake into barley plants using ion-specific electrodes and 36ClO −3 . II. Regulation of NO −3 efflux by NH4/+. Plant Physiol 73:105–110
Epstein E (1972) Mineral Nutrition of Plants: Principles and Perspectives. John Wiley, New York, p 412
Ferdon EN (1950) Studies in Ecuadorian Geography. School of American Research, monograph 15. School of American Research and University of Southern California, Santa Fe, pp 35–76
Flint PS, Gersper PL (1974) Nitrogen nutrient levels in arctic tundra soils. In: Holding AJ, Heal OW, Maclean SF Jr, Flanagan PW (eds) Soil Organisms and Decomposition in Tundra. Tundra Biome Steering Committee, Stockholm, pp 375–387
Focht DD, Verstraete W (1977) Biochemical ecology of nitrification and denitrification. In: Alexander M (ed) Advances in Microbial Ecology, Vol 1. Plenum Press, New York, pp 135–214
Fried M, Zsoldos F, Vose BP, Shatokhin IL (1965) Characterizing the NH +4 and NO −3 uptake process of rice roots by use of 15N labelled NH4NO3. Physiol Plant 18:313–320
Grubb PJ (1977) Control of forest growth and distribution on wet tropical mountains: with special reference to mineral nutrition. Ann Rev Ecol Syst 8:83–107
Haynes RJ, Goh KM (1978) Ammonium and nitrate nutrition of plants. Biol Rev 53:465–510
Lorenz OA, Maynard DN (1980) Knott's Handbook for Vegetable Growers. John Wiley, New York
Lycklama JC (1963) The absorption of ammonium and nitrate by perennial ryegrass. Acta Bot Neerl 12:361–423
Marcus-Wyner L (1983) Influence of ambient acidity on the absorption of NO −3 and NH +4 by tomato plants. J Plant Nutr 6:657–666
Newman CW, McGuire CF (1985) Nutritional quality of barley. In: Rasmusson DC (ed) Barley, No 26. Am Soc Agron, Crop Sci Soc Am, Soil Sci Soc Am, pp 403–456
Pan WL, Jackson WA, Moll RH (1985) Nitrate uptake and partitioning by corn root systems. Differential effects of ammonium among genotypes and stages of root development. Plant Physiol 77:560–566
Peet MM, Raper CD, Tolley LC, Robarge WP (1985) Tomato responses to ammonium and nitrate nutrition under controlled root-zone pH. J Plant Nutr 8:787–798
Pfadenhauer J (1979) Die Stickstoffmineralisation im Boden subtropischer Regenwälder in Südbrasilien. Oecol Plant 14:27–40
Rao KP, Rains DW (1976) Nitrate absorption by barley. I. Kinetics and energetics. Plant Physiol 57:55–58
Rick CM (1978) The Tomato. Sci Am 239:76–87
Rick CM, Fobes JF, Tanksley SD (1979) Evolution of mating systems in Lycopersicon hirsutum as deduced from genetic variation in electrophoretic and morphological characters. Pl Syst Evol 132:279–298
Russell EW (1973) Soil Conditions and Plant Growth, ed. 10. Longman, New York, pp 327–387
Robertson GP (1984) Nitrification and nitrogen mineralization in a lowland rainforest succession in Costa Rica, Central America. Oecol 61:99–104
Rufty TW Jr, Jackson WA, Raper CD Jr (1982) Inhibition of nitrate assimilation in roots in the presence of ammonium. The moderating influence of potassium. J Exp Bot 33:1122–1137
Sanchez PA (1976) Properties and Management of Soils in the Tropics. John Wiley, New York, pp 184–222
Schrader LE, Domska D, Jung PE Jr, Peterson LA (1972) Uptake and assimilation of ammonium-N and nitrate-N and their influence on the growth of corn (Zea mays L.). Agron J 64:690–695
Smith FW, Thompson JE (1971) Regulation of nitrate reductase in excised barley roots. Plant Physiol 48:219–233
Thiagalingham K, Kanehiro Y (1973) Effects of temperature on nitrogen transformation in Hawaiian soils. Plant Soil 38:177–189
Toy TJ, Kuhaida AJ Jr, Munson BE (1978) The prediction of mean monthly soil temperature from mean monthly air temperature. Soil Sci 126:181–189
Tromp J (1962) Interactions in the absorption of ammonium, potassium and sodium ions by wheat roots. Acta Bot Neerl 11:147–192
Uehara G, Gillman G (1981) The Minerology, Chemistry, and Physics of Tropical Soils with Variable Charge Clays. Westview, Boulder Colorado, pp 116–127
Wilkinson GN (1961) Statistical estimations in enzyme kinetics. Biochem J 80:324–332
Wych RD, Simmons SR, Warner RL, Kirby EJM (1985) Physiology and development. In: Rasmusson DC (ed) Barley. Am Soc Agron, Crop Sci Soc of Am, Soil Sci Soc Am, pp 103–125