Root nodule bacteria having enhanced nitrogen-fixation ability

Details Root nodule bacteria having enhanced nitrogen-fixation ability Root nodule bacteria having enhanced nitrogen-fixation ability

C - Chemistry, Metallurgy

12

N

C12N 1/21 (2006.01) A01G 7/00 (2006.01) C05F 11/08 (2006.01) C12N 9/08 (2006.01) C12N 15/53 (2006.01)

Patent

CA 2453672

A bacterium transformed by a catalase gene having the base sequence represented by SEQ ID NO:1 wherein the nitrogen fixation ability is potentiated by the catalase produced by the gene; preparations for leguminous crops containing this leguminous bacterium as the active ingredient; and a method of growing leguminous crops characterized by growing leguminous crop seeds having been brought into contact with the preparations. Thus, the growth of leguminous crops can be promoted and the yields thereof can be elevated. Moreover, it is expected that agricultural cost can be reduced and environmental pollution can be relived thereby, since the amount of nitrogen fertilizers to be applied can be lessened.

L'invention concerne une bactérie transformée par un gène catalase ayant la séquence de bases représentée par SEQ ID NO :1 ; l'aptitude de fixation de l'azote est potentialisée par la catalase produite par le gène ; les préparations de plantes légumineuses cultivées contenant cette bactérie légumineuse comme principe actif ainsi qu'un procédé de croissance de plantes légumineuses cultivées. Ce procédé de croissance de plantes légumineuses cultivées est caractérisé par la croissance de semences qui sont été mises en contact avec lesdites préparations. Cela permet de favoriser la croissance de plantes légumineuses cultivées et d'augmenter les rendements. La quantité d'engrais azotés utilisé étant réduite, on s'attend à ce que le coût agricole comme la pollution de l'environnement soient également réduits.

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