Characterization of Aquimarina hainanensis isolated from diseased mud crab Scylla serrata larvae in a hatchery

© 2020 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Journal of fish diseases. - 1998. - 43(2020), 5 vom: 15. Mai, Seite 541-549
1. Verfasser: Midorikawa, Yuki (VerfasserIn)
Weitere Verfasser: Shimizu, Tomohito, Sanda, Tetsuya, Hamasaki, Katsuyuki, Dan, Shigeki, Lal, Mohammad Tamrin Bin Mohamad, Kato, Goshi, Sano, Motohiko
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Journal of fish diseases
Schlagworte:Journal Article Aquimarina hainanensis Scylla serrata characteristics mud crab pathogenicity
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520 |a Mass mortality due to necrosis signs occurred in hatchery-reared zoea stage larvae of the mud crab Scylla serrata in Okinawa, Japan, and a causative bacterium was isolated. In this study, we identified and characterized the bacterium by genome analysis, biochemical properties and pathogenicity. The bacterium was a Gram-negative, non-motile, long rod, forming yellow colonies on a marine agar plate. It grew at 20-33°C (not at 37°C) and degraded chitin and gelatin. Phylogenetic analysis of the 16S rRNA gene sequence identified the bacterium as Aquimarina hainanensis. Genome sequence data obtained from Illumina MiSeq generated 29 contigs with 3.56 Mbp in total length and a G + C content of 32.5%. The predicted 16 chitinase genes, as putative virulence factors, had certain homologies with those of genus Aquimarina. Experimental infection with the bacterium conducted on larvae of four crustacean species, brine shrimp Artemia franciscana, freshwater shrimp Caridina multidentata, swimming crab Portunus trituberculatus and mud crab S. serrata, revealed that this bacterium was highly virulent to these species. The present study suggests that the bacterium caused mass mortality in mud crab seed production was A. hainanensis and can be widely pathogenic to crustaceans 
650 4 |a Journal Article 
650 4 |a Aquimarina hainanensis 
650 4 |a Scylla serrata 
650 4 |a characteristics 
650 4 |a mud crab 
650 4 |a pathogenicity 
700 1 |a Shimizu, Tomohito  |e verfasserin  |4 aut 
700 1 |a Sanda, Tetsuya  |e verfasserin  |4 aut 
700 1 |a Hamasaki, Katsuyuki  |e verfasserin  |4 aut 
700 1 |a Dan, Shigeki  |e verfasserin  |4 aut 
700 1 |a Lal, Mohammad Tamrin Bin Mohamad  |e verfasserin  |4 aut 
700 1 |a Kato, Goshi  |e verfasserin  |4 aut 
700 1 |a Sano, Motohiko  |e verfasserin  |4 aut 
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773 1 8 |g volume:43  |g year:2020  |g number:5  |g day:15  |g month:05  |g pages:541-549 
856 4 0 |u http://dx.doi.org/10.1111/jfd.13151  |3 Volltext 
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