In addition, one genome carried a protein related to nitrogen fixation (encoded by the rnf gene), and three others had oxidoreductases [Fe(II)-dependent oxygenase, tryptophan halogenase, and thioredoxin, which are enzymes that promote oxidative reactions of proteins, forming cascades of signalization], which could represent possible AMGs that help the plume’s viruses during infection, especially in the presence of nitrogen fixation phytoplankton in the plume (14). This evidence concerns the gene TXN and infection.