Mutualistic interactions between vitamin B12-dependent algae and heterotrophic bacteria exhibit regulation. - Kazamia, Elena; Czesnick, Hjördis; Nguyen, Thi Thanh Van; Croft, Martin Tom; Sherwood, Emma; Sasso, Severin; Hodson, Sarah James; Warren, Martin James; Smith, Alison Gail (Environmental Microbiology, 2012)