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 FCB may refer to: Banks * Fairfield County Bank, in the United States * Farm Credit Bank, part of the Farm Credit System in the United States * Florida Community Bank, in the United States * First Community Bank, in Kenya * First Consolidated B ...

. The phylum was first proposed after analysis of two genomes from the mouths of two bottlenose dolphins. "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 representatives as of yet. It is part of the

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 bottlenose dolphin. 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 Oceanic dolphins or Delphinidae are a widely distributed family of dolphins that live in the sea. Close to forty extant species are recognised. They include several big species whose common names contain "whale" rather than "dolphin", such as the ...

) 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 Bottom water is the lowermost water mass in a water body, by its bottom, with distinct characteristics, in terms of physics, chemistry, and ecology. Oceanography Bottom water consists of cold, dense water near the ocean floor. This water is char ...

from the Northern Bering Sea
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, marine sediment 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 th ...

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.

References

{{Taxonbar, from=Q96376180 Bacteria Dolphins Genomics