The Bacteria That Made Life Possible Are Now Killing Us 

Thanks to the St. Croix Watershed Research Station for sponsoring this video! To learn more about their work, visit www.smm.org/scwrs/.
Aquatic cyanobacteria first oxygenated earth’s air, making human life possible; now, due to our actions, cyanobacteria are madly blooming once more, poisoning our coasts in the process
Thanks also to our Patreon patrons / minuteearth and our RU-vid members.
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To learn more, start your googling with these keywords:
Cyanobacteria: aquatic photosynthesizing bacteria often erroneously call blue-green algae
Blue-green algae: incorrect name often used for cyanobacteria because they are blue-green in appearance and can be confused with algae
Dead zone: coastal area where cyanobacteria blooms lead to anaerobic conditions, killing fish and other organisms
Mycrosystins: a class of toxic compounds released by certain cyanobacteria
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Credits (and Twitter handles):
Script Writer: Peter Reich
Script Editor: David Goldenberg (@dgoldenberg)
Video Illustrator: Sarah Berman (@sarahjberman)
Video Director: David Goldenberg (@dgoldenberg)
Video Narrator: Julián Gómez (@thejuliangomez)
With Contributions From: Henry Reich, Alex Reich, Kate Yoshida, Ever Salazar, Julián Gómez, Arcadi Garcia Rius
Music by: Nathaniel Schroeder: / drschroeder
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References:
Bargu S et al. Mississippi River diversions and phytoplankton dynamics in deltaic Gulf of Mexico estuaries: A review. Estuarine, Coastal and Shelf Science 221:39-52 (2019).
Berman-Frank I, Lundgren P, Falkowski P. Nitrogen fixation and photosynthetic oxygen evolution in cyanobacteria. Research in Microbiology 154, 157-164 (2003)
Carey CC et al. Eco-physiological adaptations that favour freshwater cyanobacteria in a changing climate. Water Research 46, 1394-1407 (2012)
Garcia AK et al. Reconstructed ancestral enzymes suggest long-term cooling of Earth’s photic zone since the Archean. Proc Natl Acad Sci 114:4619-4624 (2017)
Glass JB, Wolfe-Simon F, Anbar AD. Coevolution of metal availability and nitrogen assimilation in cyanobacteria and algae. Geobiology 7, 100-123 (2009).
Lyons TW, CT Reinhard, NJ Planavsky. The rise of oxygen in Earth’s early ocean and atmosphere Nature 506, 307-315 (2014).
Planavsky NJ et al. The evolution of the marine phosphate reservoir. Nature 467, 1088-1090 (2010)
Soo RM et al. On the origins of oxygenic photosynthesis and aerobic respiration in Cyanobacteria. Science 355, 1436-1440 (2017)
Tromas N et al. Characterising and predicting cyanobacterial blooms in an 8-year amplicon sequencing time course. ISME J 11:1746-1763 (2017)

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