Effects of Bacteria on Artemia franciscana Cultured in Different Gnotobiotic Environments

Marques, Antonio, Dinh, Thi, Ioakeimidis, Christos, Huys, Geert, Swings, Jean, Verstraete, Willy, Dhont, Jean, Sorgeloos, Patrick and Bossier, Peter (2005) Effects of Bacteria on Artemia franciscana Cultured in Different Gnotobiotic Environments. Applied and Environmental Microbiology, 71 8: 4307-4317. doi:10.1128/AEM.71.8.4307-4317.2005

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Author Marques, Antonio
Dinh, Thi
Ioakeimidis, Christos
Huys, Geert
Swings, Jean
Verstraete, Willy
Dhont, Jean
Sorgeloos, Patrick
Bossier, Peter
Title Effects of Bacteria on Artemia franciscana Cultured in Different Gnotobiotic Environments
Journal name Applied and Environmental Microbiology   Check publisher's open access policy
ISSN 1098-5336
Publication date 2005-08
Sub-type Article (original research)
DOI 10.1128/AEM.71.8.4307-4317.2005
Open Access Status File (Publisher version)
Volume 71
Issue 8
Start page 4307
End page 4317
Total pages 11
Place of publication United States
Publisher American Society for Microbiology
Language eng
Subject 070401 Aquaculture
Abstract The use of probiotics is receiving considerable attention as an alternative approach to control microbiota in aquaculture farms, especially in hatching facilities. However, application with consistent results is hampered by insufficient information on their modes of action. To investigate whether dead bacteria (allowing investigation of their nutritional effect) or live bacteria (allowing evaluation of their probiotic effect) have any beneficial effect towards Artemia franciscana and, subsequently, if live bacteria have probiotic effects beyond the effects observed with dead bacteria, a model system was employed using gnotobiotic Artemia as a test organism. Nauplii were cultured in the presence of 10 bacterial strains combined with four different major axenic live feeds (two strains of Saccharomyces cerevisiae and two strains of Dunaliella tertiolecta) differing in their nutritional values. In combination with poor- and medium-quality live feeds, dead bacteria exerted a strong effect on Artemia survival but a rather weak or no effect on individual length and constituted a maximum of only 5.9% of the total ash-free dry weight supplied. These effects were reduced or even disappeared when medium- to good-quality major feed sources were used, possibly due to improvements in the health status of Artemia. Some probiotic bacteria, such as GR 8 (Cytophaga spp.), improved (not always significantly) the performance of nauplii beyond the effect observed with dead bacteria, independently of the feed supplied. The present approach can be an excellent system to study the exact mode of action of bacteria, especially if combined with challenge tests or other types of analysis (e.g., transcriptome and proteonomic analysis)
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Advanced Water Management Centre Publications
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Created: Wed, 18 Feb 2009, 11:00:41 EST by Judy Dingwall on behalf of Advanced Water Management Centre