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Endosymbiosis in protozoa of the Trypanosomatidae family
de Souza, Wanderley ; Motta, Maria Cristina Machado
FEMS Microbiology Letters, 1999-04, Vol.173 (1), p.1-8
[Periódico revisado por pares]
Oxford: Elsevier B.V
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Título:
Endosymbiosis in protozoa of the Trypanosomatidae family
Autor:
de Souza, Wanderley
;
Motta, Maria Cristina Machado
Assuntos:
Animals
;
Bacteria - growth & development
;
Bacteria - isolation & purification
;
Bacteria - ultrastructure
;
Bacterial Physiological Phenomena
;
Biochemistry
;
Biochemistry. Physiology. Immunology. Molecular biology
;
Biological and medical sciences
;
Blastocrithidia culicis
;
Crithidia deanei
;
Crithidia desouzai
;
Crithidia oncopleti
;
Endosymbiont
;
Fundamental and applied biological sciences. Psychology
;
Herpetomonas roitmani
;
Phylogeny
;
Protozoa
;
Symbiosis
;
Trypanosomatid
;
Trypanosomatidae
;
Trypanosomatina - microbiology
;
Trypanosomatina - ultrastructure
;
Ultrastructure
É parte de:
FEMS Microbiology Letters, 1999-04, Vol.173 (1), p.1-8
Notas:
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
ObjectType-Review-3
content type line 23
ObjectType-Feature-3
ObjectType-Review-1
Descrição:
A small number of trypanosomatids present bacterium endosymbionts in the cytoplasm, which divide synchronously with the host cell. Crithidia oncopleti, Crithidia deanei, Crithidia desouzai, Blastocrithidia culicis and Herpetomonas roitmani are the best characterized species. The endosymbiont is surrounded by two membranes separated from each other by an electron-lucent space. The presence of the endosymbiont led to the appearance of morphological changes which include the lack of the paraflagellar rod associated to the axoneme, the morphology of the kinetoplast and the association of the sub-pellicular microtubules with portions of the protozoan plasma membrane. Aposymbiotic strains could be obtained by antibiotic treatment, opening the possibility to make comparative analysis of endosymbiont-containing an endosymbiont-free populations of the same species. It is clear that metabolic cycles are established between the prokaryiont and the host cell. The results obtained show that endosymbiont-containing species of trypanosomatids constitute an excellent model to study basic processes on the endosymbiont–host cell relationship and the origin of new organelles.
Editor:
Oxford: Elsevier B.V
Idioma:
Inglês
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