Acetylene reduction by transfilter suspension cultures of Rhizobium japonicum. |
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Authors: | M Reporter N Hermina |
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Institution: | Charles F. Kettering Research Laboratory Yellow Springs, Ohio 45387 USA |
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Abstract: | Cultures of Rhizobium japonicum were grown in a defined medium and then placed in a transfilter-apparatus. Suspension cultures of soybean root cells were grown in Gamborg's B-5 defined medium and then were placed in a second chamber of this apparatus. The plant-cell medium was renewed under conditions shown to give partial synchrony in soybean cell cultures. Sampling of rhizobia showed that acetylene reduction activity could be obtained after approximately four days in the transfilter-apparatus. Criteria for precluding contaminations have been listed. This is the first report on the activation of Rhizobium japonicum in transfilter suspension cultures using defined media. |
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