Linked Life Data

17409726

Source:http://linkedlifedata.com/resource/pubmed/id/17409726

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-4-5
pubmed:abstractText
A gutless polychaete of the family Siboglinidae, Oligobrachia mashikoi, known in the past as a beard worm of the group Pogonophora, inhabits Tsukumo Bay of the Noto Peninsula in the Sea of Japan. Photographs were taken of this polychaete projecting about one third of the length of its tentacles outside of its tube. The tube protruded several mm from the sea bottom. These are the first field photographs of beard worms. The trophosome of this beard worm harbors sulfur-oxidizing bacteria. In fact, the muddy sediment where this worm inhabits smells slightly of hydrogen sulfide. Total sulfide levels, which can be an indicator of the generation of hydrogen sulfide gas, were measured at 10 locations in the bay. Furthermore, at the location which this species inhabits, the total sulfide levels in the vertical direction were determined. In addition, the total nitrogen levels, which can indicate the quantity of organic substances, were measured. The sediment inhabited by this worm was determined to have total sulfide levels of 0.24-0.39 mg/g dry mud, measured in the form of acid-volatile sulfide-sulfur. The total nitrogen levels were 1.0-1.5 microg/mg dry mud. These values suggest that the bottom of Tsukumo Bay has not been deteriorated by eutrophication. The levels were, however, highest in the surface layer of the sediment. These results suggest that hydrogen sulfide is generated in the surface of the sediment by sulfate-reducing bacteria, and that O. mashikoi appears to able to live in an environment that contains a slight amount of sulfide.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0289-0003
pubmed:author
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
131-6
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Relationship between the lifestyle of a Siboglinid (Pogonophoran) polychaete, Oligobrachia mashikoi, and the total sulfide and nitrogen levels in its habitat.
pubmed:affiliation
Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Japan. sasayama@kenroku.kanazawa-u.ac.jp
pubmed:publicationType
Journal Article