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Acetylene reduction in gnotobiotic cultures with rhizosphere bacteria and wheat

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Spring-wheat plant seedlings were inoculated with various isolates of nitrogen-fixing rhizosphere bacteria, includingAzospirillum brasilense, in gnotobiotic sand cultures. Bacteria which had lost their acetylene reduction activity (ARA) during purification did not regain it in the presence of the plant. Bacteria with stable ARA were stimulated to low ARA (maximum 5.6 nmol C2H4 plant−1 h−1) by young (22–32-day) wheat seedlings.

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Lindberg, T., Granhall, U. Acetylene reduction in gnotobiotic cultures with rhizosphere bacteria and wheat. Plant Soil 92, 171–180 (1986). https://doi.org/10.1007/BF02372631

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