The cuticle of adultNippostrongylus brasiliensis

Parasitology - Tập 55 Số 1 - Trang 173-181 - 1965
D. L. Lee1
1Molteno Institute, University of Cambridge

Tóm tắt

The cuticle of adults ofNippostrongylus brasiliensishas been described using histological, histochemical and ultrastructural techniques.The cuticle has the following layers: an outer triple-layered membrane; a single cortical layer; a fluid-filled layer which is traversed by numerous collagen fibrils; struts which support the fourteen longitudinal ridges of the cuticle and which are suspended by collagen fibrils in the fluid-filled layer; two fibre layers, each layer apparently containing three layers of fibres; and a basement lamella.The fluid-filled layer contains haemoglobin and esterase.The muscles of the body wall are attached to either the basement lamella or to the fibre layers of the cuticle.The mitochondria of the hypodermis are of normal appearance.The longitudinal ridges of the cuticle appear to abrade the microvilli of the intestinal cells of the host.Possible functions of the cuticle are discussed.I wish to thank Dr P. Tate, in whose department this work was done, for helpful suggestions and criticism at all stages of this work, and Mr A. Page for technical assistance. I also wish to thank Professor Boyd for permission to use the electron microscope in the Department of Anatomy.

Từ khóa


Tài liệu tham khảo

Rogers, 1949, The biological significance of haemoglobin in nematode parasites. I. The characteristics of the purified pigments, Aust. J. sci. Res., 2, 287

10.1017/S0031182000010052

10.1038/159434a0

10.1017/S0031182000022368

10.1017/S0031182000024215

10.1016/0014-4894(62)90056-5

10.1080/00034983.1960.11685974

10.1083/jcb.11.3.729

10.1007/BF01247842

Harris, 1957, Structure and function in the nematodes: internal pressure and cuticular structure in Ascaris, J. exp. Biol., 34, 116, 10.1242/jeb.34.1.116

10.1098/rspb.1949.0025

10.1017/S0031182000022009

10.1016/0014-4894(57)90029-2

10.1007/BF02151367

Pearse, 1960, Histochemistry. Theoretical and Applied

10.1038/157302c0

10.1163/187529258X00436

10.1038/165275b0

10.1080/00034983.1961.11686027

Roberts, 1963, Metabolism of Nippostrongylus brasiliensis (Nematoda: Trichostrongyloidea), J. Parasit., 49, 51

10.1126/science.131.3400.585

Chitwood, 1950, An Introduction to Nematology

Johri, 1956, A histochemical approach to the study of helminth morphology, Parasitology, 46, 107, 10.1017/S003118200002638X