PRESSURISED: 063 – Bioluminescent Symbiosis with Margaret McFall-Ngai

16/11/2025 37 min
PRESSURISED: 063 – Bioluminescent Symbiosis with Margaret McFall-Ngai

Listen "PRESSURISED: 063 – Bioluminescent Symbiosis with Margaret McFall-Ngai"

Episode Synopsis

Welcome to the PRESSURISED version of episode 63, just the science, none of the waffle
PRESSURISED: Bioluminescent Symbiosis with Margaret McFall-Ngai | The Deep-Sea Podcast | Episode 63

 
Our guest this month is Dr. Margaret McFall-Ngai, an animal physiologist and biochemist who is a staff researcher at Carnegie Institution for Science’s Division of Biosphere Sciences and Engineering, with her lab stationed at the California Institute of Technology in Biology and Biological Engineering. Dr. McFal-Ngai talks us through her work on the stable beneficial relationship between the Hawaiian bobtail squid (Euprymna scolopes) and its partner, the luminous bacterium Vibrio fischeri. Although technically not a deep-sea species, this relationship and its details might help us understand how deep-sea life creates bioluminescence and the possible life cycle impacts for the creatures involved. 
 
Glossary
Crypt - The chambers within the squid's light organ.
 
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Reference list
Interview Links
A lasting symbiosis: how the Hawaiian bobtail squid finds and
keeps its bioluminescent bacterial partner
A lasting symbiosis: how Vibrio fischeri finds a squid partner
and persists within its natural host
 
Credits
Logo image: Dr. Margaret McFall-Ngai
Theme: Hadal Zone Express by Märvel