Comparative Histology and Histochemistry of the Male Genital Accessory Glands of <em>Dermacentor variabilis</em> (Say and <em>Argas radiatus</em> (Railliet)

<p>Male genital accessory gland development in <em>Dermacentor</em> <em>variabilis</em> is completed by the fourth day after initiation of feeding, while that in <em>Argas</em> <em>radiatus</em> (Argasidae) occurs between the first and tenth days after adult ecdysis. <em>D</em>. <em>variabilis</em> has twelve spongy and/or granular lobes, and A. radiatus has fourteen spongy and/or granular lobes. The glands lack cellular differentiation in immatures, but have four distinct cell types present in adults. Both species also possess apocrine, holocrine, and merocrine secretory mechanisms. Secretions contain acid polysaccharides, mucin, glycogen, basic protein, and other products. Continually produced accessory gland secretions accumulate before mating and are discharged at the time of mating. Additional secretory material is produced soon after mating. A new tubular cell type is described.</p>

Name thesis:degree_name

Master of Science in Biology

Level thesis:degree_level

Thesis (restricted to Georgia Southern)

Discipline thesis:degree_discipline

Department of Biology

Year dc:date.available

1974

Author dc:creator

• Murphy, Richard W.

Contributors dc:contributor

• W. Keith Hartberg
• Edwin T. Hibbs

• ETD
• Male genital accessory gland
• Dermacentor variabilis
• Argas radiatus
• Secretions
• Histology
• Histochemistry
• Biochemistry, Biophysics, and Structural Biology
• Biology

Repository record dc:identifier

https://digitalcommons.georgiasouthern.edu/etd_legacy/821

OAI identifier oai:identifier

oai:digitalcommons.georgiasouthern.edu:etd_legacy-1996