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Fig. 6 | Standards in Genomic Sciences

Fig. 6

From: Towards long-read metagenomics: complete assembly of three novel genomes from bacteria dependent on a diazotrophic cyanobacterium in a freshwater lake co-culture

Fig. 6

Proposed relationships between Aphanizomenon flos-aquae and the three novel bacteria in forming a community that is dependent on the cyanobacterium primary producer as the source of N and C, as was the case in the co-culture grown in N-free minimal medium. The Hyphomonadaceae and Betaproteobacterium are aerobic anoxygenic phototrophs, with likely electron donors for the production of ATP and NAD(P)H indicated. They are both motile, with flagella shown; for the Betaproteobacterium, type IV pili for twitching motility are also indicated. The Bacteroidetes possesses genes for gliding motility across surfaces, such as A. flos-aquae filaments. While ammonium importer genes are annotated for the two proteobacteria, genes for the uptake of specific forms of N were not annotated for the Bacteroidetes. Catalase secreted by the Bacteroidetes may benefit A. flos-aquae by reducing oxidative stress

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