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- Title
Screening for and Identification of an Anti-clam Vibrio Marine Bacterium from an Aquaculture Pond in the Yellow Sea.
- Authors
Sun, Xing; Zhao, Gengmao; Gu, Chenhao; Liu, Ling; Zhu, Ming; Liu, Zhaopu
- Abstract
The identification and use of probiotic bacterial stains is a practical approach to protect clams grown in aquaculture farms from disease. The inhibition of the pathogenic bacterium Vibrio alginolyticus was used as a trait to select a candidate probiotic bacterial strain in this study. An ideal bacterial strain, SW-1, was isolated from sea water from a clam farm. The selected isolate SW-1 was identified based on its physiological, morphological, and biochemical characteristics and its 16S rDNA sequence. The experiments showed that strain SW-1 had a high similarity to Pseudoalteromonas piscicida and could inhibit the growth of V. alginolyticus (V.-MP-1). SW-1 also improved the survival of clams following challenge with the pathogenic V.-MP-1. The mortality of clams was 100% after infection with 108CFU/mL of V. alginolyticus, whereas mortality was only 11% when clams were infected with 108CFU/mL of V.-MP1 while simultaneously exposed to the same concentration of Pseudoalteromonas SW-1, indicating that Pseudoalteromonas SW-1 could be used as a probiotic to protect farmed clams, and thus reduce the effects of antibiotics on aquatic environment.
- Subjects
YELLOW Sea; MARINE bacteria; VIBRIO alginolyticus; POND aquaculture; CLAMS; PROBIOTICS; NUCLEOTIDE sequencing; DISEASES
- Publication
CLEAN: Soil, Air, Water, 2016, Vol 44, Issue 3, p304
- ISSN
1863-0650
- Publication type
Article
- DOI
10.1002/clen.201200478