We analysed the influence of various bacteria on the in vitro growth of trophozoites of a Platyamoeba strain isolated from diseased gill tissues of cultured turbot. Little or no growth was shown by amoebae cultured in the presence of (1) the turbot-pathogenic bacteria Vibrio anguillarum, Aeromonas salmonicida or Streptococcus sp., (2) Pasteurella piscicida or Vibrio vulnificus (pathogenic for some fishes but not turbot), or (3) the non-pathogenic 'environmental' bacteria Vibrio campbelli, Vibrio fluvialis or Pseudomonas dondorofii. The only bacteria which were successfully utilized as food sources were Aeromonas hydrophila (pathogenic for some fishes but not turbot) and the non-pathogens Vibrio natriegens, Pseudomonas nautica and Escherichia coli. These results suggest that the colonization of the gills of cultured turbot by the epizoic amoeba Platyamoeba may be an indicator of faecal contamination.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3354/dao045073 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Exploring sp. M21F004 for Biocontrol of Bacterial and Fungal Phytopathogens.
Mar Drugs
November 2024
Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea.
This study explores the biocontrol potential of sp. M21F004, a lactic acid bacteria (LAB) isolated from marine environments, against several bacterial and fungal phytopathogens. Out of 50 marine bacterial isolates, sp.
View Article and Find Full Text PDFGenome-wide analysis of quorum sensing regulon in marine fish pathogen Vibrio scophthalmi.
Sci Rep
November 2024
Department of Food Science and Biotechnology, College of Engineering, Ewha Womans University, Seoul, 03760, South Korea.
Article Synopsis
- The opportunistic fish pathogen Vibrio scophthalmi significantly harms olive flounder and turbot, leading to major economic losses in seafood production in Far East Asia.
- This study focuses on the role of LuxR, a quorum sensing master regulator, revealing that it enhances poly-hydroxyalkanoate (PHA) biosynthesis while inhibiting biofilm formation in V. scophthalmi.
- The research suggests that targeting LuxR could be an effective strategy to mitigate the pathogen's harmful effects, thus improving seafood production by interfering with its various physiological functions.
Immunoglobulin M-based local production in skin-associated lymphoid tissue of flounder (Paralichthys olivaceus) initiated by immersion with inactivated Edwardsiella tarda.
Fish Shellfish Immunol
November 2024
Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao, 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao Marine Science and Technology Center, Qingdao, Shandong 266237, China.
Fish skin, the mucosal site most exposed to external antigens, requires protection by an efficient local mucosal immune system. The mucosal reserve of IgM is recognized as an immune strategy that blocks pathogen invasion to maintain homeostasis, whereas the mechanism of skin-associated local IgM production induced by mucosal antigens is not well know. In this study, we found that the skin of flounder (Paralichthys olivaceus) was equipped with the immune cellular and molecular basis for processing mucosal antigens and triggering local specific responses, i.
View Article and Find Full Text PDFRecognition of MCF-7 breast cancer cells using native collagen probes: Collagen source effect.
Int J Biol Macromol
December 2024
College of Life Science and Technology, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, PR China. Electronic address:
Developing superior cancer cell recognition probes is crucial for the development of tumor therapy and cancer early screening materials. In this study, we first achieved effective recognition of MCF-7 breast cancer cells using natural collagen probes. Through cell adhesion, cancer cell selective capture, and flow cytometry techniques, the binding efficiency of mammalian-derived collagens (bovine Achilles tendon collagen, porcine skin collagen) and fish-derived collagens (turbot skin collagen, grass carp skin collagen, mandarin fish skin collagen) to cancer cells (MCF-7 breast cancer cells) and normal cells (human umbilical vein endothelial cells, HUVECs) was analyzed and compared.
View Article and Find Full Text PDFIdentification and Functional Analysis of Ras-Related Associated with Diabetes Gene () in -Resistant Individuals of Japanese Flounder ().
Int J Mol Sci
October 2024
State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China.
Ras-related associated with diabetes (RRAD) is a member of the Ras GTPase superfamily that plays a role in several cellular functions, such as cell proliferation and differentiation. In particular, the superfamily acts as an NF-κB signaling pathway inhibitor and calcium regulator to participate in the immune response pathway. A recent transcriptome study revealed that was expressed in the spleen of disease-resistant Japanese flounder () individuals compared with disease-susceptible individuals, and the results were also verified by qPCR.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!