Linked Life Data

86315

Source:http://linkedlifedata.com/resource/pubmed/id/86315

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1979-6-26
pubmed:abstractText
The Legionnaires' disease (LD) bacterium appeared ultrastructurally identical in human lung, egg yolk membrane, and artificial media, seen as a blunt or tapering rod measuring 0.3 to 0.9 micron in diameter and greater than or equal to 2.0 micron long. Greatly elongated forms were commonly found in cultures and yold sac membranes after 5 to 7 days of growth but were only rarely seen in human lung. The LD bacterium was clearly prokaryotic. Prominent features included electron-lucent nucleoids interspersed among areas of well-defined ribosomes; cleanly circumscribed cytoplasmic vacuoles or granular inclusions; and a double envelope enclosure, each portion consisting of a triple-layered "unit" membrane, approximately 75 A wide. Division always occurred as a pinching, nonseptate process typical of bacteria with a double, gram-negative type of envelope. No definite structure was seen in the periplasmic space that might represent the peptidoglycan layer. These features of the LD bacterium confirm earlier reports of the gram-negative staining reaction of organisms obtained from cultures and preliminary evidence of their gram-negative ultrastructure. We found no unique features that would aid in the ultrastructural differentiation of the LD bacterium from other small gram-negative bacilli.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0003-4819
pubmed:author
pubmed:issnType
Print
pubmed:volume
90
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
642-7
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Ultrastructure of the Legionnaires' disease bacterium. A study using transmission electron microscopy.
pubmed:publicationType
Journal Article