Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1986-12-3
|
pubmed:abstractText |
Monomorphic bloodstream forms of Trypanosoma brucei, grown in the mammal, are deficient in aconitase and 2-oxoglutarate dehydrogenase and they do not respire in the presence of the substrates citrate, cis-aconitate, succinate, proline or 2-oxoglutarate. When grown in vitro low levels of aconitase, succinate oxidase and proline oxidase are detected. Addition of citrate/cis-aconitate at 37 degrees C to bloodstream forms leads to the formation of aconitase and proline oxidase. Most cells undergo an 'abortive' transformation to non-dividing procyclic-like cells while some cells adapt to the presence of the citric acid cycle intermediates and continue to multiply as bloodstream forms. At 27 degrees C and in the presence of citrate/cis-aconitate bloodstream forms transform synchronously to dividing procyclic cells. Within 72 h the rate of respiration with proline, succinate and 2-oxoglutarate becomes similar to that in established procyclic cells while the rate of glucose oxidation decreases. The possible role of citric acid cycle intermediates in determining whether a trypanosome will retain the properties of a bloodstream trypomastigote or differentiate to a procyclic trypomastigote is discussed.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Oct
|
pubmed:issn |
0014-2956
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
1
|
pubmed:volume |
160
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
175-82
|
pubmed:dateRevised |
2007-7-23
|
pubmed:meshHeading |
pubmed-meshheading:3769918-Aconitic Acid,
pubmed-meshheading:3769918-Animals,
pubmed-meshheading:3769918-Body Temperature,
pubmed-meshheading:3769918-Citrates,
pubmed-meshheading:3769918-Energy Metabolism,
pubmed-meshheading:3769918-Glucose,
pubmed-meshheading:3769918-Mice,
pubmed-meshheading:3769918-Oxidation-Reduction,
pubmed-meshheading:3769918-Tricarboxylic Acids,
pubmed-meshheading:3769918-Trypanosoma brucei brucei,
pubmed-meshheading:3769918-Trypanosomiasis, African,
pubmed-meshheading:3769918-Tsetse Flies
|
pubmed:year |
1986
|
pubmed:articleTitle |
The effect of citrate/cis-aconitate on oxidative metabolism during transformation of Trypanosoma brucei.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|