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The effect of the level of nitrogen supply on the amino acid composition in phloem sap and in leaf extract of rice

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Plant Nutrition for Sustainable Food Production and Environment

Part of the book series: Developments in Plant and Soil Sciences ((DPSS,volume 78))

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Abstract

The influence of nitrogen supply to roots on the composition of amino acids in phloem sap and leaf extract of rice plants were examined. With increase in nitrogen concentration in nutrient solution, the proportion of glutamine (Gln) was increased in the phloem sap, but not in the leaf. On the other hand, the proportion of asparagine (Asn) was increased both in phloem sap and leaf extract. The increase in the value of Gm/(Gln+Asn) in phloem sap and decrease in leaf extract with increase in nitrogen supply suggested that Gln was transferred into sieve tubes from parenchyma cells more preferentially than Asn.

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© 1997 Kluwer Academic Publishers

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Okada, Y., Hayashi, H., Chino, M. (1997). The effect of the level of nitrogen supply on the amino acid composition in phloem sap and in leaf extract of rice. In: Ando, T., Fujita, K., Mae, T., Matsumoto, H., Mori, S., Sekiya, J. (eds) Plant Nutrition for Sustainable Food Production and Environment. Developments in Plant and Soil Sciences, vol 78. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0047-9_40

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  • DOI: https://doi.org/10.1007/978-94-009-0047-9_40

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-6510-8

  • Online ISBN: 978-94-009-0047-9

  • eBook Packages: Springer Book Archive

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