Editor: Craig Shoemaker
Acinetobacter sp. HM746599 isolated from leatherback turtle blood
Article first published online: 27 JUL 2011
© 2011 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved
FEMS Microbiology Letters
Volume 322, Issue 2, pages 166–171, September 2011
How to Cite
Soslau, G., Russell, J. A., Spotila, J. R., Mathew, A. J. and Bagsiyao, P. (2011), Acinetobacter sp. HM746599 isolated from leatherback turtle blood. FEMS Microbiology Letters, 322: 166–171. doi: 10.1111/j.1574-6968.2011.02346.x
- Issue published online: 11 AUG 2011
- Article first published online: 27 JUL 2011
- Accepted manuscript online: 24 JUN 2011 12:27PM EST
- Received 16 June 2011; revised 21 June 2011; accepted 21 June 2011, Final version published online 27 July 2011.
- turtle blood
A newly described bacterial isolate, Acinetobacter sp. HM746599, has been obtained from leatherback sea turtle hatchling blood. The implication is that the hatchling was infected during development in the egg, which is substantiated by other studies to be reported by us in the future. The 16S rRNA gene sequence of the bacterium (GenBank accession number: HM746599) showed the greatest similarity to the identified species, Acinetobacter beijerinckii (97.6–99.78%) and Acinetobacter venetianus (99.78%). Acinetobacter sp. HM746599 are gram-negative, rod-shaped coccobacilli and are hemolytic/cytotoxic to human and sea turtle red blood cells (RBCs). Hemolysis is not the result of any detectable soluble toxin. Acinetobacter beijerinckii and A. venetianus hemolyze sheep RBCs while Acinetobacter sp. HM746599 does not, and unlike A. venetianus, the growth of Acinetobacter sp. HM746599 and A. beijerinckii is not supported by l-arginine. Many Acinetobacter species, especially hemolytic ones, are pathogenic to immunologically compromised humans and it is possible that, in addition to sea turtles, this bacterium might also be a danger to susceptible humans who handle infected hatchlings. The bacteria are available from CCUG (Culture Collection, University Gothenburg, Göteborg, Sweden) and from NRRL (Agricultural Research Service Culture Collection, Peoria, IL).