Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-26T08:14:04.016Z Has data issue: false hasContentIssue false
  • English
  • Français

The Penetration of the host tissue by the harvest mite, Trombicula Autumnalis shaw

Published online by Cambridge University Press:  06 April 2009

B. M. Jones
B. M. Jones
Affiliation:
Zoology Department, University of Edinburgh
Get access Rights & Permissions [Opens in a new window]

Extract

1. The introduction refers to the fragmentary state of our knowledge on Trombiculid mites and indicates that most attention has been devoted to the taxonomy and bionomics of the group. The life cycle and general method of feeding are briefly outlined and reference is made to previous work directly concerned with the present treatise.

2. The morphology of the organs related to the phenomenon of piercing and sucking in the larva of Trombicula autumnalis is described.

3. The physical factors of the skin influence the choice of habitat upon the host.

4. The food consists of tissue fluid and disintegrated cells of the malpighian layer partially liquefied by the action of injected saliva, a condition typical of extra-intestinal digestion.

5. The mechanism of the initial piercing of the skin, which is done by the cheliceral claws, is described.

6. A tubular tissue canal is gradually formed in the skin of the host and around its insoluble wall are deposited superimposed layers of keratinized protective tissue.

7. The mechanism of suction is described and the factors which play a part are considered. The problem of the tissue canal serving as a duct for both the ejection of saliva and the suction of food is explained by the alternation of the two processes. The inter-relationship, between the intermittent injections of saliva, the formation of the tissue canal and the deposition of protective tissue, is elucidated.

Type
Research Article
Information
Parasitology , Volume 40 , Issue 3-4 , October 1950 , pp. 247 - 260
Copyright
Copyright © Cambridge University Press 1950

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

André, M. (1927). Bull. Mus. Hist, nat., Paris, 38, 509–16.Google Scholar
Awati, P. R. (1914). Proc. Zool. Soc. Lond. 2, 685–733.CrossRefGoogle Scholar
Beandis, F. (1879). Festschr. 50en Bestehen Provinz. Irrensanst. Nietleben.Google Scholar
Davidson, J. (1923). Ann. Appl. Biol. 10, 35–54.CrossRefGoogle Scholar
Gill, D. A., Moule, G. R. & Rick, R. F. (1945). Aust. vet. J. 21, 22–31.CrossRefGoogle Scholar
Grove, A. J. (1919). Parasitology, 11, 456–88.CrossRefGoogle Scholar
Gudden, (1871). Virchows Arch. 52 (5F. 2Bd.).Google Scholar
Henking, H. (1882). Z. wiss. Zool. 37, 553–663.Google Scholar
Jayewickreme, S. H. & Niles, W. J. (1946). Nature, Lond., 157, 878.CrossRefGoogle Scholar
Jayewickreme, S. H. & Niles, W. J. (1947). Nature, Lond., 160, 578.CrossRefGoogle Scholar
Jones, B. M. (1946). Proc. R. Ent. Soc. Lond. A, 21, 85–6.Google Scholar
Jones, B. M. (1950). Parasitology, 40, 1–13.CrossRefGoogle Scholar
Jourdain, S. (1899). Arch. Parasit. Z. no. 1.Google Scholar
Keay, G. (1937). J. Anim. Ecol. 6, 23–5.CrossRefGoogle Scholar
Marshall, J. F. & Staley, J. (1929). Parasitology, 21, 158–60.CrossRefGoogle Scholar
Michael, A. D. (1896). Trans. Linn. Soc. Lond. Zool. 6 (ser. 2), 477–528.CrossRefGoogle Scholar
Thor, Sig. (1904). Ann. Sci. Nat. 19 (ser. 8, Zoology), 1–190.Google Scholar
Toldt, K. (Jun.) (1923). Wien. klin. Wschr. no. 33.Google Scholar
Trouessart, E. L. (1897). Bull. Soc. ent. Fr. no. 4.Google Scholar
Wright, S. (1945). Applied physiology, 8th ed.London: Oxford University Press.Google Scholar