Visualization of Nippostrongylus brasiliensis by Scanning Electron Microscopy

Seesee, Floyd M.; Wescott, Richard B.; Gorham, J. R.

doi:10.2307/3279871

Cited by 4 publications

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Microtopography of Nippostrongylus brasiliensis (Nematoda: Heligmosomatidae): Free‐living larval stages

Nembo

Goudey‐Perriere

Gayral

et al. 1993

Journal of Morphology

View full text Add to dashboard Cite

Microtopographic features of the various growth stages of the three free-living larval stages of the rat hookworm Nippostrongylus brasiliensis (Nematoda) were surveyed by scanning electron microscopy. These worms have a rounded anterior end and an elongated tail. Cuticular annulations were observed along the body, which also bore two ribbon-like lateral alae. Two rings of six lip-like lappets were observed around the triradiate oral opening in all larval stages. The cephalic space contained two lateral amphidial pits. The excretory pore in the third anterior part was observed in a ventral view of the larvae. No deirids were observed. The anus with a crescent-shape opening was located posteriorly. Phasmidial apertures, only observed in the third-stage larvae, opened on the lateral alae in the tail region.

show abstract

Microtopography of Nippostrongylus brasiliensis (Nematoda: Heligmosomatidae): Free‐living larval stages

Nembo

Goudey‐Perriere

Gayral

et al. 1993

Journal of Morphology

View full text Add to dashboard Cite

show abstract

Microtopography of Nippostrongylus brasiliensis (Nematoda: Heligmosomatidae): Parasitic larval stages and adults

Nembo

Goudey‐Perriere

Gayral

et al. 1993

Journal of Morphology

View full text Add to dashboard Cite

Specimens of the rat hookworm, Nippostrongylus brasiliensis (Nematoda) were recovered from lungs (third- and fourth-stage larvae) and intestine (fourth-stage larvae and adults). The following features were studied in the different stages by scanning electron microscopy: cephalic structures, especially sense organs, synlophe, cervical region, and caudal part. The main differences between the third and fourth stages concerned the lip-like structures around the oral aperture, the appearance of the cephalic space with the presence of a cephalic cap in fourth-stage larvae, the pattern of longitudinal ridges, and sexual differentiation. Pore-like papillae, not seen in third-stage larvae, developed in later stages. Deirids were observed only in adults, and phasmids were poorly discerned. Some of these morphological features, such as the cephalic sense organ apertures and cuticle pores and micropores, can be observed only by scanning electron microscopy. The possible functions of these different structures and their relationship with the behavior of the worms during their life cycle are discussed.

show abstract

Observations on the coiled posture of trichostrongyle infective larvae using a freeze-substitution method and scanning electron microscopy

Wharton

1982

International Journal for Parasitology

View full text Add to dashboard Cite

Visualization of Nippostrongylus brasiliensis by Scanning Electron Microscopy

Cited by 4 publications

References 0 publications

Microtopography of Nippostrongylus brasiliensis (Nematoda: Heligmosomatidae): Free‐living larval stages

Microtopography of Nippostrongylus brasiliensis (Nematoda: Heligmosomatidae): Free‐living larval stages

Microtopography of Nippostrongylus brasiliensis (Nematoda: Heligmosomatidae): Parasitic larval stages and adults

Observations on the coiled posture of trichostrongyle infective larvae using a freeze-substitution method and scanning electron microscopy

Contact Info

Product

Resources

About