Sökning: onr:"swepub:oai:researchportal.hkr.se/admin:publications/112335bd-2aec-4ec2-a04b-69fee3735ae8" >
Experimental evalua...
Experimental evaluation of survival of Vibrio parahaemolyticus in fertilized cold‐water sediment
-
- Collin, Betty (författare)
- Man and Biosphere Health (MABH)
-
- Hernroth, Bodil (författare)
- Man and Biosphere Health (MABH),Royal Swedish Academy of Sciences
-
(creator_code:org_t)
- 2020-03-09
- 2020
- Engelska 9
-
Ingår i: Journal of Applied Microbiology. - : Wiley-Blackwell Publishing Ltd. - 1364-5072 .- 1365-2672. ; 129:1, s. 75-84
- Relaterad länk:
-
https://doi.org/10.1...
Abstract
Ämnesord
Stäng
- Aims: This experimental study focuses on survival and consistence of Vibrio parahaemolyticus in cold‐water sediments and how increasing temperature and nutritional availability can affect growth. Methods and Results: A pathogenic strain of V. parahaemolyticus was inoculated in seawater microcosms containing bottom sediment. Gradually, during 14 days, the temperature was upregulated from 8 to 21°C. Culturable V. parahaemolyticus was only found in the sediment but declined over time and did not recover even after another 2 days at 37°C. Numbers of culturable bacteria matched the amount found by q‐PCR indicating that they did not enter a dormant state, contrary to those in the water layer. After adding decaying phytoplankton as fertilizer to the microcosms of 8 and 21°C for 7 and 14 days, the culturability of the bacteria increased significantly in the sediments at both temperatures and durations of exposure. Conclusion: The study showed that V. parahaemolyticus can stay viable in cold‐water sediment and growth was stimulated by fertilizers rather than by temperature. Significance and Impact of the Study: Vibrio parahaemolyticus is a common cause of seafood‐borne gastroenteritis and is today recognized in connection to increasing ocean temperature. The results indicate that this pathogen should be considered a risk in well‐fertilized environments, such as aquacultures, even during cold periods.
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas