Related Experiment Video
Updated: Mar 25, 2026
08:58
Colonization of Euprymna scolopes Squid by Vibrio fischeri
Published on: March 1, 2012
20.7K
Two Vibrio species co-colonize a morphologically complex symbiotic light organ
Clotilde Bongrand1, Raphael Lami1, Marcelino T Suzuki1
1Sorbonne Université, UPVD, CNRS, UMR8176 Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), 66650 Banyuls-sur-Mer, France.
The ISME Journal
|March 24, 2026
Summary
We identified two new Vibrio species symbiotic with the Sepiola affinis squid. Their unique light organ structure and temperature preferences offer new insights into animal-microbe mutualism.
Area of Science:
- Marine microbiology
- Symbiosis research
- Invertebrate zoology
Background:
- The squid-vibrio symbiosis is a key model for animal-microbe interactions.
- Interactions within Mediterranean sepiolid squid symbionts are poorly understood.
Purpose of the Study:
- To characterize the Sepiola affinis squid-vibrio symbiosis.
- To investigate symbiont diversity, light organ structure, and environmental adaptations.
Main Methods:
- Whole-genome sequencing of light-organ Vibrio isolates.
- Confocal microscopy of juvenile squid light organs.
- Temperature-dependent growth assays of Vibrio species.
Main Results:
- Two novel Vibrio species were identified as symbionts of S. affinis.
- S. affinis light organ has 12 crypts, more than other sepiolids.
- Vibrio species showed distinct colonization patterns and temperature preferences.
Conclusions:
- S. affinis harbors diverse Vibrio symbionts with unique adaptations.
- Light organ complexity influences symbiont colonization and stability.
- S. affinis is a promising model for studying mutualistic symbiosis dynamics.
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