Abstract
Nautella italica is a member of the family Rhodobacteraceae described in 2009. Strain LMG 24365T (=CECT 7645T, =DSM 26436T, =CCUG 55857T) was isolated from a marine electroactive biofilm growing in a stainless steel cathode exposed to natural water in Genoa, Italy. Strain AD 41 (=CECT 7321) was isolated from water surrounding cultivated gilthead seabream larvae in Cádiz, Spain. The genomes of strains CECT 7645T and CECT 7321 were sequenced, assembled, annotated and compared. Here we describe the most relevant findings: biofilm formation, quorum sensing, resistance to multiple drugs, heavy metals and oxidative stress, cytotoxins, and poly-β-hydroxybutyrate (PHB) production genes. These genomes were also compared to current available genomes in NCBI Genome Database from members of the genus Nautella, Nautella sp. R11 and Nautella sp. ECSMB14104. The comparison showed a higher similarity between strains CECT 7645T and R11 compared to strain CECT 7321 and strain ECSMB14104. The genome similarity indexes allowed confirming and assigning strains CECT 7321, R11 and ECSMB14104 to the species N. italica.
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