Schizeckenosy: The substitute for defecation in chigger mites
作者:
Rodger Mitchell,
M. Nadchatram,
期刊:
Journal of Natural History
(Taylor Available online 1969)
卷期:
Volume 3,
issue 1
页码: 121-124
ISSN:0022-2933
年代: 1969
DOI:10.1080/00222936900770121
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
It is impossible for trombidiform mites to defecate because they lack both an anus and a hind gut. Digestive residues remain in the mid-gut lumen and there are great differences in the capacity of species to transfer and store digestive residues in specific mid-gut lobes. The chigger mite species with the most precise pattern of faeces storage spontaneously ruptures the body wall in a narrowly defined region and extrudes a faeces-filled gut lobe through the rupture. This seems to be a normal function in the field and in healthy reproducing laboratory cultures and the process, named schizeckenosy, may be a secondarily evolved substitute for defecation.
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