Abstract：
:In all insects investigated hitherto the mechanoreceptive hair sensilla possess the same organization plan. There are differences in the moulting process of hemimetabolous insects. While the functions of the three enveloping cells are corresponding, the position of the moulting porus is different. In Gryllus and Periplaneta the moulting porus is situated at the base of the hair, in Machilis 25 mum above the base of the hair. In Lepisma, however, the moulting porus is located at the tip of the hair shaft. Comparison of mechanoand contactchemoreceptive hair sensilla shows that the position of the moulting porus in primitive ectognathous insects represents an argument for the close morphological and phylogenetical relationship between both types of sensilla. Interpreting our results, the original position of the moulting porus is at the tip of the hair sensilla. In mechanoreceptors, where the moulting porus is located at the base of the hair, the original tip of the hair (position of the moulting porus) is overgrown at the side by a 'secondary hair process'.
journal_name
Tissue Celljournal_title
Tissue & cellauthors
Berg J,Schmidt Kdoi
10.1016/s0040-8166(96)80039-5subject
Has Abstractpub_date
1996-02-01 00:00:00pages
9-15issue
1eissn
0040-8166issn
1532-3072pii
S0040-8166(96)80039-5journal_volume
28pub_type
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