Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Techniques for Isolation of Pure Cultures01:24

Techniques for Isolation of Pure Cultures

Microorganisms are routinely cultured in the laboratory using various techniques to isolate, grow, and quantify them for further study. These methods rely on inoculating microorganisms into a suitable growth medium under aseptic conditions to prevent contamination. Depending on the objective, inoculation can involve direct transfer or the use of diluted bacterial suspensions as the inoculum.Streak-Plate Method for IsolationThe streak-plate method is a common technique for obtaining pure...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Coronectomy of mandibular third molars: a clinical and radiological study of 231 cases with a mean follow-up period of 5.7years.

International journal of oral and maxillofacial surgery·2018
Same author

Experimental challenges with Renibacterium salmoninarum in Arctic charr Salvelinus alpinus.

Diseases of aquatic organisms·2017
Same author

Reproductive history and dietary habits and breast cancer risk in Greenlandic Inuit: a case control study.

Public health·2016
Same author

Levels of Renibacterium salmoninarum antigens in resident and anadromous salmonids in the River Ellidaár system in Iceland.

Journal of fish diseases·2015
Same author

Construction of Aeromonas salmonicida subsp. achromogenes AsaP1-toxoid strains and study of their ability to induce immunity in Arctic char, Salvelinus alpinus L.

Journal of fish diseases·2014
Same author

Predicting the concentration of verotoxin-producing Escherichia coli bacteria during processing and storage of fermented raw-meat sausages.

Applied and environmental microbiology·2014

Related Experiment Video

Updated: Jul 3, 2026

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation
09:49

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Published on: October 31, 2019

Isolation of putative probionts from cod rearing environment.

H L Lauzon1, S Gudmundsdottir, M H Pedersen

  • 1Matis, Icelandic Food Research, Skulagata 4, 101-Reykjavik, Iceland. helene.l.lauzon@matis.is

Veterinary Microbiology
|July 5, 2008
PubMed
Summary

New probiotics were identified to protect young cod from harmful bacteria in aquaculture. Lactic acid bacteria show significant potential as a safe alternative to antibiotics for improving fish survival rates.

More Related Videos

Bioprospecting of Extremophilic Microorganisms to Address Environmental Pollution
07:20

Bioprospecting of Extremophilic Microorganisms to Address Environmental Pollution

Published on: December 30, 2021

Selective Cleaning of Wild Caenorhabditis Nematodes to Enrich for Intestinal Microbiome Bacteria
09:47

Selective Cleaning of Wild Caenorhabditis Nematodes to Enrich for Intestinal Microbiome Bacteria

Published on: August 13, 2021

Related Experiment Videos

Last Updated: Jul 3, 2026

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation
09:49

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Published on: October 31, 2019

Bioprospecting of Extremophilic Microorganisms to Address Environmental Pollution
07:20

Bioprospecting of Extremophilic Microorganisms to Address Environmental Pollution

Published on: December 30, 2021

Selective Cleaning of Wild Caenorhabditis Nematodes to Enrich for Intestinal Microbiome Bacteria
09:47

Selective Cleaning of Wild Caenorhabditis Nematodes to Enrich for Intestinal Microbiome Bacteria

Published on: August 13, 2021

Area of Science:

  • Aquaculture
  • Microbiology
  • Fish Health

Background:

  • Intensive fish rearing faces early-stage survival challenges, often treated with antibiotics.
  • Probiotics offer a potential alternative to antibiotics for protecting fish larvae and balancing the aquatic environment.

Purpose of the Study:

  • To identify novel probiotic bacteria for enhancing cod (Gadus morhua) larval survival.
  • To evaluate potential probionts from the natural microbiota of cod aquaculture environments.

Main Methods:

  • Screening 188 bacterial isolates for pathogen inhibition, growth characteristics, and adhesion to fish cell lines.
  • Identifying promising isolates using 16S rRNA gene sequencing.
  • Assessing metabolite production and growth at cod rearing temperatures.

Main Results:

  • 14% of screened bacteria exhibited antagonistic properties against fish pathogens.
  • Gram-positive bacteria from Firmicutes and Actinobacteria phyla were predominant among inhibitory isolates.
  • Four promising isolates, including lactic acid bacteria, were identified as potential probiotics for cod aquaculture.

Conclusions:

  • The study highlights the potential of lactic acid bacteria as probiotics in aquaculture.
  • Developing probiotic mixtures is crucial for effective prophylactic strategies in cod rearing.
  • Selected bacterial isolates demonstrate capacity to inhibit key fish pathogens.