Share this article    

       

       

Fine structure of pustules of Labidostoma luteum Kramer (Acari, Actinotrichida, Labidostomatidae) with further remarks on the complex cuticle of this mite

Alberti, G.


2013 - Volume: 53 Issue: 2 pages: 129-143

https://doi.org/10.1051/acarologia/20132083

Keywords

defense epicuticle gland pore canals procuticle ultrastructure

Abstract

Most Labidostomatidae bear lateral protuberances called pustules on their idiosoma, which have been considered as "enigmatic" structures. Here, the fine structure of the pustules of Labidostoma luteum is described using scanning and transmission electron microscopy. It is shown that the pustules represent peculiar exocrine glands which extrude their secretions through a specialized cuticular region which is shaped like the hat of a mushroom. This region includes a space located between the epicuticle and the procuticle and is regarded as a reservoir from which secretions likely are evacuated passing through the inner epicuticle. The inner epicuticle is incompletely penetrated by numerous tubular indentations. The peculiar structure of the pustules is shown to be a specialized region of the complex cuticle of the mite being provided with pore canals which terminate under cuticular indentations and a peculiar tunnel system. The latter is organized in cuticular ribs by spaces between inner epicuticle and procuticle. The function of the pustules and the tunnel system remains unknown, but inter- and/or intraspecific communication or a defensive role seem likely.

Comments
Please read and follow the instructions to post any comment or correction.


Article editorial history

Date received:
2012-09-06
Date accepted:
2012-12-17
Date published:
2013-06-28

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License
2013 Alberti, G.

Downloads

 Download article

 Download low definition

Download the citation

RIS with abstract 
(Zotero, Endnote, Reference Manager, ProCite, RefWorks, Mendeley)
RIS without abstract 
(Zotero, Endnote, Reference Manager, ProCite, RefWorks, Mendeley)
BIB 
(Zotero, BibTeX)
TXT 
(PubMed, Txt)

Article metrics

Number of distinct pdf views
1361

Cited by: view citations with

Search via ReFindit