Growth-Promoting Azospirillum spp. Isolated from the Roots of Several Non-Gramineous Crops in Japan

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概要

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• Nitrogen-fixing bacteria were isolated from the roots of five non-gramineous crops (Spinacia oleracea, Brassica chinensis, Brassica rapa var. pervidis, Glycine max, Cucumis sativus) grown on soils from Tsukuba and Kukizaki, Ibaraki, Japan. All the isolates were unable to utilize glucose as the sole carbon source and except for the isolates from soybean roots which did not display any Nir activity. Acetylene reduction activities (ARA) of all the isolates were lower than that of the type culture of A. brasilense. Some of the isolates exerted a growth-promoting effect on the roots and shoots their respective host plants by inoculation to the roots. Dual inoculation of Bradyrhizobium and Azospirillum spp. isolated from soybean roots inhibited the nodulation and ARA.

• 一般社団法人日本土壌肥料学会の論文

著者

• Gamo Takuma

  National Institute of Agrobiological Resources

• Ahu Sang

  Agricultural Sciences Institute

関連論文

• Nitrogen Accumulation and Changes in Natural ^N Abundance in the Tissues of Legumes with Emphasis on N_2, Fixation by Stem-Nodulating Plants in Upland and Paddy Fields
• Dinitrogen Fixation and Nitrogen Release from Roots of Soybean Cultivar Bragg and Its Mutants Nts1116 and Nts1007
• Growth-Promoting Azospirillum spp. Isolated from the Roots of Several Non-Gramineous Crops in Japan

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