NITRITE UTILIZATION IN THE ROOTS OF HIGHER PLANTS
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概要
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Nitrite utilization by the roots of kidney bean, corn, and sunflower plants was investigated using ^<15>N-labeled nitrite, and the following were concluded. (1) The primary roots of the corn plant assimilate nitrite to amino acids by a combination of nitrite reductase, glutamine synthetase and glutamate synthase. The reduction rate is rapid in the apical zone compared to the rates in the more mature zones. (2) Nitrite reduction to amino level occurs rapidly in the roots of 20-day-old seedlings of the three plants at similar rates in the daytime and in the night. This reduction seems to be more rapid than the reduction of nitrate to amino level. (3) The nitrogen derived from fed nitrogen was transferred from the root to the leaf more actively in the daytime than in the night. This trend was true for both the nitrite-fed and nitrate-fed plants. However, nitrite does not seem to be transferred to the leaf, but some nitrate may be transferred in an unchanged form. Additional Index Words : nitrite reduction, glutamine, translocation.
- 一般社団法人日本土壌肥料学会の論文
著者
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Yazaki Jinya
Department Of Agricultural Chemistry Nihon University
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Yoneyama Tadakatsu
Division Of Environmental Biology National Institute For Environmental Studies
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IWATA Eitoku
Department of Agricultural Chemistry, Nihon University
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Iwata Eitoku
Department Of Agricultural Chemistry Nihon University
関連論文
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- Variations of Natural ^C Abundances in Leguminous Plants
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- ^N Studies on the In Vivo Assay of Nitrate Reductase in Leaves : Occurrence of Underestimation of the Activity Due to Dark Assimilation of Nitrate and Nitrite
- MICROBIAL DEGRADATION OF ^N-LABELED RICE RESIDUES IN SOIL DURING TWO YEARS' INCUBATION UNDER FLOODED AND UPLAND CONDITIONS : I.Decay of Residue and Soil Microflora
- MICROBIAL DEGRADATION OF ^N-LABELED RICE RESIDUES IN SOIL DURING TWO YEARS' INCUBATION UNDER FLOODED AND UPLAND CONDITIONS : II.Transformation of Residue Nitrogen
- ATMOSPHERIC DINITROGEN FIXATION IN THE FLOODED RICE RHIZOSPHERE AS DETERMINED BY THE N-15 ISOTOPE TECHNIQUE
- NITROGEN MINERALIZATION OF SEWAGE SLUDGES IN SOIL
- NITRITE UTILIZATION IN THE ROOTS OF HIGHER PLANTS
- ^N STUDY ON THE PARTITIONING OF THE NITROGEN TAKEN BY SOYBEANS FROM ATMOSPHERIC DINITROGEN, MEDIUM NITRATE OR AMMONIUM
- DETECTION OF N-NITROSODIMETHYLAMINE IN SOILS AMENDED WITH SLUDGES
- DISTRIBUTION OF NITROGEN ABSORBED DURING DIFFERENT TIMES OF GROWTH IN THE PLANT PARTS OF WHEAT AND CONTRIBUTION TO THE GRAIN AMINO ACIDS