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KMID : 0364820220580030183
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Korean Journal of Microbiology
2022 Volume.58 No. 3 p.183 ~ p.187
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Complete genome sequence analysis of Photobacterium atrarenae GJH2-4 reveals its genetic capability for benzene degradation isolated from marine environment
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Kim Min-Ji
Park Soo-Je
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Abstract
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The genus Photobacterium belongs to family Vibrionaceae, order Vibrionales, and phylum Pseudomonadota. It is known as a Gram-stain-negative and facultative aerobe that is motile.
Members of the genus Photobacterium including pathogens have various life cycles. In this study, we isolated a strain GJH2-4 belonging to the genus Photobacterium from a marine sediment of Jeju Island, South Korea. Its complete genome sequence was found to have three circularized chromosomes.
After de novo assembling, its total size and G + C content were about 5.41 Mb and 53.0%, respectively. The three chromosomes encoded 4,794 protein-coding sequences, 34 ribosomal RNAs, and 153 transfer RNA genes. Unexpectedly, the genome of strain GJH2-4 contained genes for benzene degradation, complete denitrification, dissimilatory nitrate reduction, assimilatory sulfate reduction, flagellar assembly, and vitamins biosynthesis based on its genetic functional characteristics. Furthermore, its genome encoded cytochrome cbb3 oxidases known to have a high affinity for oxygen. Finally, we discovered that strain GJH2-4 could contribute to nutrient cycling in their habitats.
Our findings might facilitate a better understanding of various capabilities of species in genus Photobacterium.
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KEYWORD
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Photobacterium, benezene, complete genome, marine
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