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Changes in the Ultrastructure of the Gelatinous Matrix of Meloidogyne javanica During Dehydration
Abstract:
The fine structure of the gelatinous matrix of Meloidogyne javanica in both moist and dry states was studied by means of chemical fixation and thin sectioning techniques and the freeze-etch method. The matrix consists of an irregular meshwork when hydrated and a uniform granular mass of much greater density when dehydrated. The spaces in the hydrated meshwork are presumed to contain water. The change from a hydrated to a dehydrated state is accompanied by an overall shrinkage and hardening of the egg mass with a change in color from yellow to reddish-orange. The possible functions of this unusual glycoprotein are discussed.
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