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Gene libraries (“zoolibraries”) were constructed in Escherichia coli using DNA isolated from the mixed liquor of thermophilic, anaerobic digesters, which were in continuous operation with(More)
A L-methionine-D,L-sulfoximine-resistant mutant of the cyanobacterium Anabaena variabilis, strain SA1, excreted the ammonium ion generated from N2 reduction. In order to determine the biochemical(More)
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