Abstract:Paenibacillus durus strain ATCC 35681T is a Gram‐positive diazotroph that displayed capability of fixing nitrogen even in the presence of nitrate or ammonium. However, the nitrogen fixation activity was detected only at day 1 of growth when cultured in liquid nitrogen‐enriched medium. The transcripts of all the nifH homologues were present throughout the 9‐day study. When grown in nitrogen‐depleted medium, nitrogenase activities occurred from day 1 until day 6 and the nifH transcripts were also present during … Show more
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