Linked Life Data

12792020

Source:http://linkedlifedata.com/resource/pubmed/id/12792020

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
13
pubmed:dateCreated
2003-6-25
pubmed:abstractText
Nanobacteria-like objects evidenced at the surface of the orthopyroxenes of the Tataouine meteorite in South Tunisia have been studied by scanning and transmission electron microscopies. A method of micromanipulation has been developed to ensure that exactly the same objects were studied by both methods. We have shown that the nanobacteria-like objects are spatially correlated with filaments of microorganisms that colonized the surface of the meteoritic pyroxene during its 70 years of residence in the aridic Tataouine soil. Depressions of a few micrometers in depth are observed in the pyroxene below the carbonates, indicating preferential dissolution of the pyroxene and calcite precipitation at these locations. The nanobacteria-like small rods that constitute calcium carbonate rosettes are well crystallized calcite single crystals surrounded by a thin amorphous layer of carbonate composition that smoothes the crystal edges and induces rounded shapes. Those morphologies are unusual for calcite single crystals observed in natural samples. A survey of recent literature suggests that the intervention of organic compounds derived from biological activity is likely in their formation.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-11027350, http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-11459051, http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-11542972, http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-11543352, http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-11772059, http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-11882894, http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-11882895, http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-12449852, http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-8688069, http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-9393996, http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-9545214, http://linkedlifedata.com/resource/pubmed/commentcorrection/12792020-9653177
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0027-8424
pubmed:author
pubmed:issnType
Print
pubmed:day
24
pubmed:volume
100
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
7438-42
pubmed:dateRevised
2010-9-14
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Nanobacteria-like calcite single crystals at the surface of the Tataouine meteorite.
pubmed:affiliation
Laboratoire de Minéralogie-Cristallographie, Unité Mixte de Recherche 7590 Centre National de la Recherche Scientifique and Institut de Physique du Globe de Paris, 4 Place Jussieu, 75252 Paris Cedex, France. benzerar@lmcp.jussieu.fr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't