Related Experiment Video
Updated: Jul 29, 2026

Colonization of Euprymna scolopes Squid by Vibrio fischeri
Published on: March 1, 2012
A tetrodotoxin-producing Vibrio strain, LM-1, from the puffer fish Fugu vermicularis radiatus
1Department of Diagnosis, Biochemistry and Molecular Biology, College of Oriental Medicine, Dongguk University, Kyung-Ju 780-714, Korea.
Abstract:
Identification of tetrodotoxin (TTX) and its derivatives produced from a Vibrio strain in the intestine of the puffer fish Fugu vermicularis radiatus was performed by thin-layer chromatography, electrophoresis, high-performance liquid chromatography, and gas chromatography-mass spectrometry, together with a mouse bioassay for toxicity. It was demonstrated that the isolated bacterium produced TTX, 4-epi-TTX, and anhTTX during cultivation, suggesting that Vibrio strains are responsible for the toxification of the puffer fish.
Related Concept Videos
The Resting Membrane Potential
Resting Membrane Potential
The Inside of a Neuron is More Negative
The membrane potential of a cell can be measured by inserting a microelectrode into a cell and comparing the charge to a reference electrode in the extracellular fluid. The...
Tetanus
Diphtheria
Bacterial Gastroenteritis
Cholera

