Delphibacteria is a

candidate A candidate, or nominee, is the prospective recipient of an award or honor, or a person seeking or being considered for some kind of position; for example: * to be elected to an office — in this case a candidate selection procedure occurs. * ...

bacterial phylum in the FCB group. The phylum was first proposed after analysis of two genomes from the mouths of two

bottlenose dolphin Bottlenose dolphins are aquatic mammals in the genus ''Tursiops.'' They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins. Molecular studies show the genus definitively contains two species: the co ...

s. "Dephibacteria" was proposed in recognition of the first genomic representatives having been recovered from the dolphin mouth. Members of the Delphibacteria phylum have been retroactively detected in a variety of environments.

Description

Delphibacteria is a bacterial phylum with

status, meaning it has no

cultured Culture () is an umbrella term which encompasses the social behavior, institutions, and norms found in human societies, as well as the knowledge, beliefs, arts, laws, customs, capabilities, and habits of the individuals in these groups.Tylor ...

representatives as of yet. It is part of the FCB group.

History

Metabolic reconstruction of a member of the Delphibacteria phylum

The phylum was first proposed following the recovery and analysis of two genomes, each from the mouth of a different

. These dolphins were part of the US Navy's Marine Mammal Program, although Delphibacteria 16S rRNA genes have also been detected in the mouths of wild dolphins living off the coast of Florida, U.S. The first characterized member of the Delphibacteria phylum was inferred to be a

heterotroph A heterotroph (; ) is an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon, mainly plant or animal matter. In the food chain, heterotrophs are primary, secondary and tertiary consumers, but ...

ic organism with the genomic potential for oxygen and most likely nitrate reduction. It was hypothesized that the ability to perform denitrification may have an impact on dolphin physiology and health, given that in humans denitrification by oral bacteria can affect oral and gastric blood flow, signalling in bacteria-bacteria and bacteria-host interactions, and mucus thickness in the stomach. The name "Delphibacteria" was proposed in recognition of the first genomic representatives having been recovered from the dolphin mouth (Family Delphinidae) and due to its ubiquity in dolphin mouths. Members of the Delphibacteria phylum have been detected (retroactively) in a variety of environments, including bottom water from the Northern Bering Sea
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,

marine sediment Marine sediment, or ocean sediment, or seafloor sediment, are deposits of insoluble particles that have accumulated on the seafloor. These particles have their origins in soil and rocks and have been transported from the land to the sea, mai ...

from the Logatchec hydrothermal vent
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, and deep sea sediment from the

Okinawa Trough The (also called , literally China-Ryukyu Border Trough ) is a seabed feature of the East China Sea. It is an active, initial back-arc rifting basin which has formed behind the Ryukyu arc-trench system in the West Pacific. It developed where t ...

KX097792.1
.

References

{{Taxonbar, from=Q96376180 Bacteria Dolphins Genomics