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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

The operculum-plug area and membranous structure of the eggs of Trichuris trichiura.

Eggs of Trichuris trichiura were prepared for scanning electron microscopy (SEM) by the dimethylsulfoxide freeze-cracking method. The egg-shell and oocyte were examined by SEM. The egg has a chitinous shell which consists of more than 10 layers of dense lamellae. The shell is bordered by a limiting membrane. An operculum and a collar made of chitinous shell together form the opercular area. The operculum is an empty cavity. The chitinous fibers of the egg-shell in this area are diffuse and loose, with numerous micropores or spaces. The egg-shell in this area therefore appears to form a fine tubular network. The oocyte is an undifferentiated cell with a biconcave drum-like shape. The perivitelline space is conspicuous at both ends of the cell.[1]

References

  1. The operculum-plug area and membranous structure of the eggs of Trichuris trichiura. Meng, X.Q., Wang, S.S., Zhou, W.Q., Wang, B.X., Han, W.S., Wang, L. Scanning electron microscopy. (1986) [Pubmed]
 
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