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Development of the tegument of Echinococcus granulosus (Cestoda) protoscoleces during cystic differentiation in vivo.
Parasitol Res 1989; 75(4):299-306PR

Abstract

During the first 4 days following infection, early tegumentary changes are confined to the protoscolex soma of Echinococcus granulosus, the thick glycocalyx being lost and the blunt elevations, flattened. The Golgi complexes within the tegumentary cytons produce T2 vesicles that increase in number in the tegument from days 4 to 12, whereas T1 vesicles decline. Spineless, truncated microtriches develop at the somal surface, and the laminated layer starts to form around the developing cyst from days 20-40 onwards. T2 vesicles do not appear to be involved in its formation and decline in number. Two additional vesicle types participate in the production of the laminated layer: T4 vesicles contribute to the carbohydrate matrix, and 'G' vesicles form granular accumulations. Cystic differentiation is completed after 2-3 months, when the spined microtriches and rostellar hooks of the scolex are shed into the laminated layer and replaced by truncated microtriches. These ultrastructural changes are discussed with respect to parasite survival.

Authors+Show Affiliations

Department of Biological Sciences, University of Keele, Staffordshire, UK.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

2704723

Citation

Rogan, M T., and K S. Richards. "Development of the Tegument of Echinococcus Granulosus (Cestoda) Protoscoleces During Cystic Differentiation in Vivo." Parasitology Research, vol. 75, no. 4, 1989, pp. 299-306.
Rogan MT, Richards KS. Development of the tegument of Echinococcus granulosus (Cestoda) protoscoleces during cystic differentiation in vivo. Parasitol Res. 1989;75(4):299-306.
Rogan, M. T., & Richards, K. S. (1989). Development of the tegument of Echinococcus granulosus (Cestoda) protoscoleces during cystic differentiation in vivo. Parasitology Research, 75(4), pp. 299-306.
Rogan MT, Richards KS. Development of the Tegument of Echinococcus Granulosus (Cestoda) Protoscoleces During Cystic Differentiation in Vivo. Parasitol Res. 1989;75(4):299-306. PubMed PMID: 2704723.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Development of the tegument of Echinococcus granulosus (Cestoda) protoscoleces during cystic differentiation in vivo. AU - Rogan,M T, AU - Richards,K S, PY - 1989/1/1/pubmed PY - 1989/1/1/medline PY - 1989/1/1/entrez SP - 299 EP - 306 JF - Parasitology research JO - Parasitol. Res. VL - 75 IS - 4 N2 - During the first 4 days following infection, early tegumentary changes are confined to the protoscolex soma of Echinococcus granulosus, the thick glycocalyx being lost and the blunt elevations, flattened. The Golgi complexes within the tegumentary cytons produce T2 vesicles that increase in number in the tegument from days 4 to 12, whereas T1 vesicles decline. Spineless, truncated microtriches develop at the somal surface, and the laminated layer starts to form around the developing cyst from days 20-40 onwards. T2 vesicles do not appear to be involved in its formation and decline in number. Two additional vesicle types participate in the production of the laminated layer: T4 vesicles contribute to the carbohydrate matrix, and 'G' vesicles form granular accumulations. Cystic differentiation is completed after 2-3 months, when the spined microtriches and rostellar hooks of the scolex are shed into the laminated layer and replaced by truncated microtriches. These ultrastructural changes are discussed with respect to parasite survival. SN - 0932-0113 UR - https://www.unboundmedicine.com/medline/citation/2704723/Development_of_the_tegument_of_Echinococcus_granulosus__Cestoda__protoscoleces_during_cystic_differentiation_in_vivo_ DB - PRIME DP - Unbound Medicine ER -