Fate of Free Amino Acids in Paddy and Upland Soils by Using ^<13>C and ^<15>N Tracer Techniques
-
- Yamamuro Shigekazu
- Saga Univ.(present address)
-
- Ueno Hideto
- Exp. Farm, Ehime Univ.(present address)
-
- Takahashi Shigeru
- Natl. Agric. Res. Cent.(present address)
Bibliographic Information
- Other Title
-
- 水田および畑土壌における遊離アミノ酸の^<13>C, ^<15>Nトレーサー法による動態解析
- スイデン オヨビ ハタドジョウ ニ オケル ユウリ アミノサン ノ 13C 15N トレーサーホウ ニ ヨル ドウタイ カイセキ
Search this article
Abstract
Direct and indirect (=through decomposition) uptakes of free amino acids (FAA) by rice and tomato plants were investigated by using ^<13>C- and ^<15>N-labeled aspartic and glutamic acids, serine, leusine and ammonium as tracers. 1) One week after the surface application of amino acid-N or NH_4-N to paddy soil, the amounts of ammonium remaining in the soil, assimilated ammonium, denitrificated ammonium and amounts taken up by plants were similar. 2) From 5.5 to 7.7% of the FAA applied was absorbed directly by rice plants, and from 42.5 to 47.2% of that was indirectly absorbed as ammonium after decomposition. It is suggested that the FAA degraded to ammonium around 2 or 3 d and the 1-^<13>C absorption rates of the FAA (RCH(NH_2)^<13>COOH) were high in proportion to the number of carbon atoms of the R side-chain. 3) The absorption rate of N derived from the FAA by tomato plants was lower than that by rice plants, namely, from 0.4 to 1.9% in direct-uptake and from 16.0 to 29.8% in indirect-uptake. Percentage of direct-uptake of the FAA in upland soil was much lower than that in the paddy field.
Journal
-
- Japanese Journal of Soil Science and Plant Nutrition
-
Japanese Journal of Soil Science and Plant Nutrition 70 (6), 739-746, 1999
Japanese Society of Soil Science and Plant Nutrition
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001206558793216
-
- NII Article ID
- 110001747199
-
- NII Book ID
- AN00195767
-
- ISSN
- 24240583
- 00290610
-
- NDL BIB ID
- 4928553
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- IRDB
- NDL
- CiNii Articles
-
- Abstract License Flag
- Disallowed