Stimulation of dark carbon fixation in rice and tomato roots by application of ammonium nitrogen

Motoki Ikeda, Kazuhiko Mizoguchi, Takeo Yamakawa

研究成果: ジャーナルへの寄稿記事

21 引用 (Scopus)

抄録

Dark carbon fixation was investigated in roots of rice plants, an ammonium-tolerant species and tomato plants, an ammonium-sensitive one during periods of growth on nutrient media containing ammonium, ammonium nitrate, or nitrate as the nitrogen source. Application of ammonium nitrogen immediately stimulated the dark carbon fixation in the roots of both plants. The stimulation was greater in the plants grown on ammonium media than in those grown on ammonium nitrate media. The increase in the rates of dark carbon fixation continued in rice plants for 7 d whereas in tomato plants the rates reached the maximum value at day 1, and then gradually decreased. Most of the 14C fixed for 3 h remained in the roots: 75–90% in rice plants and 65–80% in tomato roots. Soluble fixation products were composed of amino acids and organic acids. Organic acids were more labelled than amino acids. Amino acids were more labelled in both plants grown on ammonium and ammonium nitrate media than in those grown on nitrate media. The proportion of 14C located in soluble metabolites was not consistently affected by the nitrogen sources. Aspartate and asparagine were more labelled in rice plants, and malate was more labelled in tomato plants. These results show that rice is superior to tomato in the function of dark carbon fixation for the continuous detoxification of excess ammonium.

元の言語英語
ページ(範囲)315-322
ページ数8
ジャーナルSoil Science and Plant Nutrition
38
発行部数2
DOI
出版物ステータス出版済み - 1 1 1992

Fingerprint

ammonium nitrogen
carbon fixation
ammonium
rice
tomatoes
nitrogen
ammonium nitrate
amino acid
organic acid
amino acids
organic acids and salts
nitrates
carbon dioxide fixation
nitrate
asparagine
aspartic acid
malates
detoxification
fixation
metabolite

All Science Journal Classification (ASJC) codes

  • Soil Science
  • Plant Science

これを引用

Stimulation of dark carbon fixation in rice and tomato roots by application of ammonium nitrogen. / Ikeda, Motoki; Mizoguchi, Kazuhiko; Yamakawa, Takeo.

:: Soil Science and Plant Nutrition, 巻 38, 番号 2, 01.01.1992, p. 315-322.

研究成果: ジャーナルへの寄稿記事

@article{27e2cb30880f426e9e41a873c44bea13,
title = "Stimulation of dark carbon fixation in rice and tomato roots by application of ammonium nitrogen",
abstract = "Dark carbon fixation was investigated in roots of rice plants, an ammonium-tolerant species and tomato plants, an ammonium-sensitive one during periods of growth on nutrient media containing ammonium, ammonium nitrate, or nitrate as the nitrogen source. Application of ammonium nitrogen immediately stimulated the dark carbon fixation in the roots of both plants. The stimulation was greater in the plants grown on ammonium media than in those grown on ammonium nitrate media. The increase in the rates of dark carbon fixation continued in rice plants for 7 d whereas in tomato plants the rates reached the maximum value at day 1, and then gradually decreased. Most of the 14C fixed for 3 h remained in the roots: 75–90{\%} in rice plants and 65–80{\%} in tomato roots. Soluble fixation products were composed of amino acids and organic acids. Organic acids were more labelled than amino acids. Amino acids were more labelled in both plants grown on ammonium and ammonium nitrate media than in those grown on nitrate media. The proportion of 14C located in soluble metabolites was not consistently affected by the nitrogen sources. Aspartate and asparagine were more labelled in rice plants, and malate was more labelled in tomato plants. These results show that rice is superior to tomato in the function of dark carbon fixation for the continuous detoxification of excess ammonium.",
author = "Motoki Ikeda and Kazuhiko Mizoguchi and Takeo Yamakawa",
year = "1992",
month = "1",
day = "1",
doi = "10.1080/00380768.1992.10416495",
language = "English",
volume = "38",
pages = "315--322",
journal = "Soil Science and Plant Nutrition",
issn = "0038-0768",
publisher = "Taylor and Francis Ltd.",
number = "2",

}

TY - JOUR

T1 - Stimulation of dark carbon fixation in rice and tomato roots by application of ammonium nitrogen

AU - Ikeda, Motoki

AU - Mizoguchi, Kazuhiko

AU - Yamakawa, Takeo

PY - 1992/1/1

Y1 - 1992/1/1

N2 - Dark carbon fixation was investigated in roots of rice plants, an ammonium-tolerant species and tomato plants, an ammonium-sensitive one during periods of growth on nutrient media containing ammonium, ammonium nitrate, or nitrate as the nitrogen source. Application of ammonium nitrogen immediately stimulated the dark carbon fixation in the roots of both plants. The stimulation was greater in the plants grown on ammonium media than in those grown on ammonium nitrate media. The increase in the rates of dark carbon fixation continued in rice plants for 7 d whereas in tomato plants the rates reached the maximum value at day 1, and then gradually decreased. Most of the 14C fixed for 3 h remained in the roots: 75–90% in rice plants and 65–80% in tomato roots. Soluble fixation products were composed of amino acids and organic acids. Organic acids were more labelled than amino acids. Amino acids were more labelled in both plants grown on ammonium and ammonium nitrate media than in those grown on nitrate media. The proportion of 14C located in soluble metabolites was not consistently affected by the nitrogen sources. Aspartate and asparagine were more labelled in rice plants, and malate was more labelled in tomato plants. These results show that rice is superior to tomato in the function of dark carbon fixation for the continuous detoxification of excess ammonium.

AB - Dark carbon fixation was investigated in roots of rice plants, an ammonium-tolerant species and tomato plants, an ammonium-sensitive one during periods of growth on nutrient media containing ammonium, ammonium nitrate, or nitrate as the nitrogen source. Application of ammonium nitrogen immediately stimulated the dark carbon fixation in the roots of both plants. The stimulation was greater in the plants grown on ammonium media than in those grown on ammonium nitrate media. The increase in the rates of dark carbon fixation continued in rice plants for 7 d whereas in tomato plants the rates reached the maximum value at day 1, and then gradually decreased. Most of the 14C fixed for 3 h remained in the roots: 75–90% in rice plants and 65–80% in tomato roots. Soluble fixation products were composed of amino acids and organic acids. Organic acids were more labelled than amino acids. Amino acids were more labelled in both plants grown on ammonium and ammonium nitrate media than in those grown on nitrate media. The proportion of 14C located in soluble metabolites was not consistently affected by the nitrogen sources. Aspartate and asparagine were more labelled in rice plants, and malate was more labelled in tomato plants. These results show that rice is superior to tomato in the function of dark carbon fixation for the continuous detoxification of excess ammonium.

UR - http://www.scopus.com/inward/record.url?scp=0003157660&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0003157660&partnerID=8YFLogxK

U2 - 10.1080/00380768.1992.10416495

DO - 10.1080/00380768.1992.10416495

M3 - Article

AN - SCOPUS:0003157660

VL - 38

SP - 315

EP - 322

JO - Soil Science and Plant Nutrition

JF - Soil Science and Plant Nutrition

SN - 0038-0768

IS - 2

ER -