Abstracts of the 14th International Symposium on Bioluminescence and Chemiluminescence

Autor:	Peter J. Herring, A.K. Campbell, P.J. Hill, S. Whitakei, C.E.D. Rees
Rok vydání:	2006
Předmět:	biology Chemistry (miscellaneous) Sequence analysis Photobacterium phosphoreum Biophysics Photophore Physiculus Bioluminescence Autoinducer Subspecies biology.organism_classification Bacteria Microbiology
Zdroj:	Luminescence. 21:269-298
ISSN:	1522-7243 1522-7235
DOI:	10.1002/bio.941
Popis:	Bacteria cultured from the photophore of a Physiculus spp. fish recovered from the Arabian Sea produced a distinctive blue luminescence that was brighter than other isolates on laboratory culture. Morphological characterization and biochemical profiling suggested that this bacterium belonged to the species Photobacterium phosphoreum, and 16S sequence analysis con- firmed that this isolate was closely related to this species. Analysis of luxA identified only small differences in the gene sequence, but the two organisms had different autoinducer profiles. Spectral analysis confirmed that the luminescence had a different ?max value to that of P. phosphoreum and a novel lumP (lumazine) gene was identified. This would account for the different spectral properties and suggests that this bacterium represents a new subspecies of P. phosphoreum.
Databáze:	OpenAIRE
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