Publication Date

1970

Document Type

Dissertation/Thesis

First Advisor

Rhode, Charles J.

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Biological Sciences

LCSH

Mites

Abstract

The ultrastructure of the egg envelopes and the developing integument of the mite Fuscuropoda marginata (Acarina : Uropodidae) were found to be morphologically similar to corresponding structures in insects. The egg is supplied with a series of extra- embryonic envelopes consisting of (1) a unit membrane homologous with the insect vitelline membrane, (2) a space occupied by embryonic fluid, (3) a layer homologous with the insect chorion, (4) a layer of degenerated follicle cells, covered on the outside by (5) a wax layer. Development of the integument from the superficial layer of cytoplasm apparent during Day 1 into a complex covering of several layers took place as the young larva approached the time for hatching on Day 6. Differentiation of the integument is apparent in electron micrographs prepared from selected embryos at varying times during the pre-hatching period.

Comments

Includes bibliographical references (pages [96]-99)

Extent

99 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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