Related Experiment Video

Updated: Sep 4, 2026

Modeling Persistent Pseudomonas aeruginosa Infection in Wounded Zebrafish Larvae
06:04

Modeling Persistent Pseudomonas aeruginosa Infection in Wounded Zebrafish Larvae

Published on: June 13, 2025

DESCRIPTION AND TREATMENT OF A PSEUDOMONAS INFECTION IN WHITE CATFISH

F P MEYER, J D COLLAR

    Applied Microbiology
    |May 1, 1964
    PubMed

    Insights

    A novel Pseudomonas bacterium caused disease in multiple fish species. Kanamycin and oxytetracycline treatments effectively controlled this virulent fish pathogen.

    Area of Science:

    • Aquatic microbiology
    • Fish pathology
    • Bacteriology

    Background:

    • A virulent bacterium was isolated from white catfish (Ictalurus catus).
    • The identified pathogen affected all tested fish species.
    • This study details the disease symptoms, pathogen characteristics, and effective treatments.

    Purpose of the Study:

    • To identify and characterize a novel fish pathogen from the Pseudomonas genus.
    • To determine the disease symptoms and physiological traits of the bacterium.
    • To evaluate effective treatment strategies for the identified fish disease.

    Main Methods:

    • Isolation and culturing of the bacterium from infected white catfish.
    • Pathogenicity testing across various fish species.
    • Assessment of growth and biochemical characteristics.
    • Evaluation of antibiotic efficacy (Kanamycin, oxytetracycline).

    Main Results:

    • The bacterium, identified as a virulent Pseudomonas species, proved pathogenic to all tested fish.
    • Disease symptoms, physiological traits, and treatment outcomes were documented.
    • Kanamycin (intraperitoneal injection) and oxytetracycline (feed additive) were effective treatments.
    • The organism's characteristics did not align with existing Bergey's Manual descriptions but suggested a close relation to P. fluorescens.

    Conclusions:

    • A new virulent Pseudomonas pathogen poses a threat to diverse fish populations.
    • Antibiotic treatments, specifically Kanamycin and oxytetracycline, offer viable control measures.
    • Further research is needed to fully classify this novel fish pathogen.
    Keywords:
    CULTURE MEDIADRUG THERAPYFISHESKANAMYCINOXYTETRACYCLINEPSEUDOMONAS INFECTIONS

    More Related Videos

    Examination of Host Phenotypes in Gambusia affinis Following Antibiotic Treatment09:25

    Examination of Host Phenotypes in Gambusia affinis Following Antibiotic Treatment

    Published on: February 22, 2017

    Phage Therapy Application to Counteract Pseudomonas aeruginosa Infection in Cystic Fibrosis Zebrafish Embryos11:20

    Phage Therapy Application to Counteract Pseudomonas aeruginosa Infection in Cystic Fibrosis Zebrafish Embryos

    Published on: May 12, 2020

    Related Concept Videos

    Atypical Pneumonia01:14

    Atypical Pneumonia

    Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
    Acute Pyelonephritis II: Diagnostic Studies and Management01:28

    Acute Pyelonephritis II: Diagnostic Studies and Management

    Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...