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Dormancy and hatching of nematode eggs.

¹Entomology and Nematology Department, AFRC Institute of Arable AFRC Institute of Arable Crops Research, Rothamsted Experimental Station, Harpenden, Hertfordshire AL5 2JQ, UK.

Parasitology Today (Personal Ed.)

|December 1, 1989

Summary

Nematode egg survival and hatching depend on factors like trehalose levels and eggshell permeability. This review details egg attributes influencing dormancy and the hatching process in parasitic nematodes.

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Area of Science:

Parasitology
Nematology
Developmental Biology

Background:

Parasitic nematodes exhibit complex hatching mechanisms.
Eggshell properties and internal fluid composition are critical for nematode survival and development.

Purpose of the Study:

To review the attributes of nematode eggs involved in dormancy and survival.
To detail the sequence of events during the hatching process of parasitic nematodes.

Main Methods:

Literature review of recent studies on nematode hatching.
Analysis of factors influencing egg dormancy and juvenile survival.

Main Results:

Trehalose content in perivitelline fluid significantly impacts hatching success.
Eggshell permeability is a key determinant for both hatching and juvenile survival.
Specific egg attributes are crucial for maintaining dormancy and enabling subsequent hatching.

Conclusions:

Understanding nematode egg attributes is vital for controlling parasitic infections.
Interventions targeting eggshell permeability or trehalose levels could disrupt nematode life cycles.

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