Cuticle, Moulting and Exsheathment

Lee, Donald L.

doi:10.4324/9780203166437_chapter_7

Cited by 15 publications

(19 citation statements)

References 68 publications

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“…Yet, the interpretation of the median zone is often confusing. Malakhov (1994) and Lee (2002), for example, erroneously assigned the basal radial striae in Ditylenchus sp. (IV, Tylenchida) to the median zone and thus concluded that there is no basal zone in this taxon and Lee (2002) described the outermost spiral fibre layers in Mermis nigrescens Dujardin, 1842 (I) as median zone.…”

Section: Characterization Of the Cuticle Zonesmentioning

confidence: 99%

“…In the latter case shallow transverse grooves, restricted to the cortical zone, are referred to as transverse striae; deep transverse grooves involving at least one of the two deeper main zones as annules (O'Grady, 1983). The definition of transverse striae is less precise in Lee (2002): ''the striae do not extend across the epidermis although in some genera they extend into the median zone of the cuticle or as far as the outer epidermal membrane (e.g. in Metadasynemoides, Chromadorida)''.…”

Section: Characterization Of the Cuticle Zonesmentioning

confidence: 99%

“…The median zone may be absent as for example in Mermis nigrescens (I, Mermithida); in Lee (2002) however, the outermost two spiral fibre layers of the basal zone were described as median zone.…”

Section: The Cuticle Structure In the Enoplea ( I-ii )mentioning

confidence: 99%

“…The epicuticle is often referred to as the external cortical zone (Costa, Draper & Priess, 1997). The cortical zone may be described as cortex and does not include the epicuticle ( Jones, Petry & Johnston, 1993;Lee, 2002); when subdivided, the more electron-dense outer layer of the cortical zone has been described as 'outer cortex' in Lee (2002) and is different from the outer cortical zone sensu Urbancik et al (1996).…”

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confidence: 99%

“…A detailed morphological overview is given of each of the three main zones in adult and juvenile nematodes. We follow the terminology of Bird (1980Bird ( , 1984 in order to avoid confusion, since even in the most recent literature (Lee, 2002) authors are not always consistent. We also document the variability of the cuticle at different taxonomic levels, between sexes and between developmental stages ( juvenile stages: J1-J4).…”

mentioning

confidence: 99%

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Review of the ultrastructure of the nematode body cuticle and its phylogenetic interpretation

et al. 2003

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The phylogenetic interpretation of the nematode cuticle ultrastructure is reviewed within the framework of recent DNA-sequence data. In particular, the structure of the median and basal zones is discussed. Several structural elements of the cuticle seem to have arisen independently several times within the Nematoda and thus are highly homoplasious (e.g. the cortical or basal radial striae, spiral fibre layers and a fluid matrix with struts). Moreover, identifying the homology of the nematode cuticle ultrastructures is often very difficult at deep taxonomic levels. Hence, the cuticle appears to be unreliable regarding resolution of deep-level relationships in the Nematoda. However, at less inclusive taxonomic levels (e.g. families, genera, ...) the cuticle seems to be a more reliable phylogenetic marker.

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Section: Characterization Of the Cuticle Zonesmentioning

confidence: 99%

Section: Characterization Of the Cuticle Zonesmentioning

confidence: 99%

Section: The Cuticle Structure In the Enoplea ( I-ii )mentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Review of the ultrastructure of the nematode body cuticle and its phylogenetic interpretation

et al. 2003

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Plant Nematode Surfaces

Curtis

Jones²,

Davies

et al. 2011

Biological Control of Plant-Parasitic Nematodes:

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The outer surface of nematodes act as an external skeleton and is covered by a tough, but flexible, multi-layered, extracellular cuticle which protects them from the external environment, maintains body shape and is involved in locomotion and defence against their host or microorganism attack. This chapter highlights the role of the nematode surface cuticle, during the various life-stages, with their environment, including their host and other microorganism. A comprehensive appraisal is presented of the complex interactions between nematodes and microbial antagonists, as the surface cuticle is believed to be involved in the host-recognition events determining the specificity of such interactions.

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Intraperitoneal development of the filarial nematode Brugia malayi in the Mongolian jird (Meriones unguiculatus)

et al. 2014

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In the present study, we describe intraperitoneal development of the FR3 strain of Brugia malayi in Mongolian jirds (Meriones unguiculatus). The third molt for male worms occurred between 4 and 7 days postinfection (dpi) and between 4 and 8 dpi for females. The fourth and final molt occurred between days 21 and 29 for males and 25 and 34 for females, considerably earlier than the times reported for subcutaneous infection models using cats and jirds. The timing of the third molt coincided largely with reports for subcutaneous Brugia pahangi infections of cats and jirds, but the final molt occurred considerably later and lasted longer than those reported for subcutaneous B. pahangi models. Spermatogenesis occurred by at least 50 dpi in adult males, and insemination of females likely occurred between 50 and 60 dpi. Microfilariae were observed in the uteri and ovejectors of adult females at 65 dpi.

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Cuticle, Moulting and Exsheathment

Cited by 15 publications

References 68 publications

Review of the ultrastructure of the nematode body cuticle and its phylogenetic interpretation

Review of the ultrastructure of the nematode body cuticle and its phylogenetic interpretation

Plant Nematode Surfaces

Intraperitoneal development of the filarial nematode Brugia malayi in the Mongolian jird (Meriones unguiculatus)

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