NDLI: Microscopic anatomy of aquatic oligochaetes ( Annelida , Clitellata ) : a zoological perspective

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Microscopic anatomy of aquatic oligochaetes ( Annelida , Clitellata ) : a zoological perspective

Content Provider	Semantic Scholar
Author	Caramelo, Carlos Martínez-Ansemil, Enrique
Copyright Year	2012
Abstract	The taxonomic identification of oligochaetes (clitellate annelids) mainly relies on internal organs due to the simplicity of their external anatomy. This fact, added to the small size of most of the aquatic oligochaetes (“microdriles”) has made the microscope an indispensable tool of study. In this paper we summarize the contribution of different microscopical techniques optical microscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM)to the growing knowledge on aquatic oligochaetes from a zoological perspective. The use of the optical microscope has been essential for taxonomical studies, ever since the first descriptions of aquatic oligochaetes made by Müller (1773) to the currently known ca.1700 species. During the last four decades, electron microscopy has generated new scenarios. Thus, TEM contributed to subcellular and physiological studies, mainly on sense organs, muscles and spermatozoa. In this context, it is worth noting that the ultrastructure of spermatozoa provided interesting topics for discussion on the phylogeny of the Clitellata. Studies with SEM, mainly focusing on chaetae, sense organs and mating structures, provided interesting insights on the field of the functional anatomy of worms. The number of papers published based on observations with CLSM on aquatic oligochaetes is reduced and these are mostly devoted to the structure of nervous system and its regeneration after fragmentation, together with embryonic development of the musculature.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.formatex.info/microscopy5/book/21-27.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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