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The antibacterial activity of strains isolated from Epinephelus coioides in Deylam seaport of Bushehr province
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Maryam Abooali-Darvish-Taheri   , Saeed Ziaei – Nejad , Nafise Sadat Naghavi |
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Abstract: (5466 Views) |
| The purpose of this study is to evaluate the antibacterialactivity of potential probiotic bacteria of Bacillus and Lactobacillus isolated from the digestive tract of Epinephelus coioides againsttwo of marine pathogenic bacteria (Vibrio harveyi [ATCC:700104], Elizabethkingia meningoseptica [ATCC:33953T]). Therefore,15 young and healthy E.coioides, were huntedfrom in Deylam seaport inspring2013, were selected, and aseptically, some pieces from different parts of their digestive system were cut and sampled. After culturing in specific media of Bacilluscereus agar and MRS agar,performing biochemical tests related to diagnosis of Bacillus and Lactobacillus genus and isolation, purification and coding of different bacterial strains, the in vitro antagonism test was performed by disc diffusion method in order to find effective probiotics. The findings indicated that eight bacterial strains candidate for probiotic properties had inhibitory effect on marine pathogens and regarding the inhibitory diameter of growth zone, bacterial strains candidate for probiotic properties could prevent the growth of pathogenic bacteria roughly as 1 to 2.6 cm. |
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| Keywords: Antagonism activity, Bacillus and Lactobacillus, Epinephelus coioides. |
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Full-Text [PDF 105 kb]
(1847 Downloads)
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Type of Study: Research |
Subject:
Fisheries
Received: 2015/03/2 | Accepted: 2015/03/2 | Published: 2015/03/2
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