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Marine bacteria team up to produce a vital vitamin

Researchers discovered that two species of marine bacteria work together to produce vitamin B12, essential for metabolism and survival of many marine organisms. The bacteria release building blocks into the water, which are then combined to form the vitamin through a complex process involving viral infection.

SourceUniversity of Oldenburg·JournalNature·TypeExperimental study·DateMay 8, 2024

Stow­aways in the genome

Researchers found over 30,000 unknown viruses integrated into the DNA of single-celled eukaryotic organisms, including algae and human parasites. These 'virophages' may protect their hosts from giant virus infections by reprogramming them to build virophages.

SourceUniversity of Innsbruck·JournalProceedings of the National Academy of Sciences·DateApr 10, 2023