Shewanella putrefaciens, a major microbial species related to tetrodotoxin (TTX)-accumulation of puffer fish Lagocephalus lunaris

Journal of Applied Microbiology
W Auawithoothij, A Noomhorm

Abstract

To investigate the major micro-organisms, which were isolated from internal organs, related to tetrodotoxin (TTX)-accumulation of puffer fish Lagocephalus lunaris. Puffer fish Lagocephalus lunaris around Chang Island in the Gulf of Thailand were collected to examine TTX-accumulation and microbial load in internal organs. The nine predominant micro-organisms isolated from the internal organs were determined TTX and studied in relation to the TTX-accumulation of the puffer fish. Shewanella putrefaciens, a predominant bacterium and related to the TTX-accumulation of the puffer fish, was examined growth and TTX-production after culture in modified Zobell medium. The results revealed that the average TTX-accumulation of the puffer fish directly varied to the bacterium load periodically, year-round. Furthermore, it coincided with the growth and the TTX-production of the bacterium, which grew slowly but produced high TTX at low temperature. Shewanella putrefaciens was a major bacterium relating to TTX-accumulation of puffer fish L. lunaris. It resulted in high TTX-accumulation of the puffer fish at low temperatures of seawater. Temperature affected growth and TTX-production of S. putrefaciens that resulted in TTX accumulated in puffer...Continue Reading

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Citations

May 13, 2014·Toxicon : Official Journal of the International Society on Toxinology·Timur Yu MagarlamovAndrey D Kuhlevsky
Aug 5, 2015·Toxicon : Official Journal of the International Society on Toxinology·Fen WeiBaolong Bao
Jan 10, 2019·Marine Drugs·Isidro José TameleVitor Vasconcelos
Dec 19, 2019·Marine Drugs·Daria I MelnikovaTimur Yu Magarlamov
Jun 21, 2020·World Journal of Microbiology & Biotechnology·Jing WangYingying Wei

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