Detection of the IAA Biosynthetic Pathway from Tryptophan via Indole-3-Acetamide in Bradyrhizobium spp
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概要
- 論文の詳細を見る
The IAA biosynthetic pathway of tryptophan to IAA via IAM was detected in Bradyrhizobium spp. (slow-growing Rhizobium) but not in Rhizobium spp. (fast-growing Rhizobium). A simple method using rapid HPLC analysis to measure the conversion from NAM to NAA was developed to detect indole-3-acetamide hydrolase activity in cultures of bacteria. Most of the Bradyrhizobium strains produce large amounts of NAA converted from NAM under our assay conditions. In addition, GC/MS analysis of purified extracts from cultures of B. japonicum wild-type strain J 1063, grown in a tryptophan-supplemented liquid medium, demonstrated the presence of IAM and IAA. The results strongly suggest that biosynthesis of IAA in Bradyrhizobium spp. involves the same pathway as that operating in Pseudomonas savastanoi and Agrobacterium tumefaciens.
- 日本植物生理学会の論文
著者
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SAKURAI Akira
The Institute of Physical and Chemical Research
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Sakurai A
Inst. Physical And Chemical Res. (riken) Saitama Jpn
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Sakurai Akira
The Inst. Of Phys. And Chem. Res.
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Kobayashi Masatomo
The Institute of Physical and Chemical Research
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SYONO Kunihiko
Department of Pure and Applied Sciences, The University of Tokyo
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SEKINE Masami
Department of Bioproduction Science, Faculty of Bioresources and Environmental Sciences, Ishikawa Pr
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Ichikawa Takanari
Department Of Pure And Applied Sciences University Of Tokyo
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Ichikawa Takanari
Department Of Pure And Applied Science University Of Tokyo
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Kobayashi Masatomo
The Inst. Of Phys. And Chem. Res.
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Kobayashi M
Carbohydrate Science Laboratory National Food Research Institute Ministry Of Agriculture Forestry An
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Syono K
Univ. Tokyo Tokyo Jpn
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Syono Kunihiko
Department Of Life Science Graduate School Of Arts And Sciences University Of Tokyo:(present Address
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Sekine Masami
Department Of Pure And Applied Sciences College Of Arts And Sciences The Niversity Of Tokyo
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Kuga Nobumi
Department of Pure and Applied Sciences, College of Arts and Sciences, The niversity of Tokyo
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Ichikawa T
Department Of Pure And Applied Sciences University Of Tokyo
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Kuga Nobumi
Department Of Pure And Applied Sciences College Of Arts And Sciences The Niversity Of Tokyo
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Sekine Masami
Department Of Bioproduction Science Ishikawa Prefectural University
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