PMID: 108919Apr 1, 1979

Electron microscopical study of Neisseria meningitidis releasing various amounts of free endotoxin

Acta Pathologica Et Microbiologica Scandinavica. Section B, Microbiology
B M AndersenO Solberg


A study has been made of the ultrastructure of four strains of Neisseria meningitidis which liberate varying amounts of free endotoxin in a chemically-defined, protein-free medium. The two strains which did not release detectable or only sparse amounts of free, filtrable endotoxin were rather uniform in cell size. Their cells appeared to be intact and showed a low tendency to aggregate, In addition cells of these strains showed only sporadic loose, trilaminar membranes and blebs, and free membranous structures were sparse in the medium. The endotoxin releasing strains liberated a high yield of free structures from the outer cell wall into the medium. These structures may represent the lipopolysaccharide (LPS).


Oct 1, 1977·Applied and Environmental Microbiology·K J SweadnerL L Nelsen
Jun 1, 1976·Antimicrobial Agents and Chemotherapy·W L Chin, J W Lawson
Dec 1, 1975·Canadian Journal of Microbiology·K G JohnsonR R Russel
Nov 1, 1973·The Journal of Experimental Medicine·I W Devoe, J E Gilchrist
Sep 1, 1974·Proceedings of the Society for Experimental Biology and Medicine·J H Jorgensen, R F Smith
Jul 1, 1973·The Journal of Infectious Diseases·J W Shands
Jul 1, 1972·Canadian Journal of Microbiology·C P KennyL Greenberg
Nov 1, 1972·Infection and Immunity·W D ZollingerM S Artenstein
Jun 3, 1967·Nature·M J CrutchleyJ Cameron
Jan 1, 1950·Proceedings of the Society for Experimental Biology and Medicine·J F MORGANR C PARKER

Related Concepts

Bacteriological Techniques
Plasma Membrane
Limulus Test
Electron Microscopy
Neisseria meningitidis

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Systemic Juvenile Idiopathic Arthritis

Systemic juvenile idiopathic arthritis is a rare rheumatic disease that affects children. Symptoms include joint pain, but also fevers and skin rashes. Here is the latest on this disease.

Chromatin Regulation and Circadian Clocks

The circadian clock plays an important role in regulating transcriptional dynamics through changes in chromatin folding and remodelling. Discover the latest research on Chromatin Regulation and Circadian Clocks here.

Central Pontine Myelinolysis

Central Pontine Myelinolysis is a neurologic disorder caused most frequently by rapid correction of hyponatremia and is characterized by demyelination that affects the central portion of the base of the pons. Here is the latest research on this disease.

Myocardial Stunning

Myocardial stunning is a mechanical dysfunction that persists after reperfusion of previously ischemic tissue in the absence of irreversible damage including myocardial necrosis. Here is the latest research.

Pontocerebellar Hypoplasia

Pontocerebellar hypoplasias are a group of neurodegenerative autosomal recessive disorders with prenatal onset, atrophy or hypoplasia of the cerebellum, hypoplasia of the ventral pons, microcephaly, variable neocortical atrophy and severe mental and motor impairments. Here is the latest research on pontocerebellar hypoplasia.

Cell Atlas Along the Gut-Brain Axis

Profiling cells along the gut-brain axis at the single cell level will provide unique information for each cell type, a three-dimensional map of how cell types work together to form tissues, and insights into how changes in the map underlie health and disease of the GI system and its crosstalk with the brain. Disocver the latest research on single cell analysis of the gut-brain axis here.

Chronic Traumatic Encephalopathy

Chronic Traumatic Encephalopathy (CTE) is a progressive degenerative disease that occurs in individuals that suffer repetitive brain trauma. Discover the latest research on traumatic encephalopathy here.

Related Papers

Acta Pathologica Et Microbiologica Scandinavica. Section B, Microbiology
B M AndersenO Solberg
Acta Pathologica Et Microbiologica Scandinavica. Section B, Microbiology
B M Andersen, O Solberg
Acta Pathologica, Microbiologica, Et Immunologica Scandinavica. Section B, Microbiology
B M AndersenO Solberg
© 2021 Meta ULC. All rights reserved