External morphology and muscle arrangement of Brachionus urceolaris, Floscularia ringens, Hexarthra mira and Notommata glyphura (Rotifera, Monogononta)
Articolo
Data di Pubblicazione:
2005
Citazione:
External morphology and muscle arrangement of Brachionus urceolaris, Floscularia ringens, Hexarthra mira and Notommata glyphura (Rotifera, Monogononta) / N. Santo, D. Fontaneto, U. Fascio, G. Melone, M. Caprioli. - In: HYDROBIOLOGIA. - ISSN 0018-8158. - 546:1(2005), pp. 223-229.
Abstract:
We studied four monogonont rotifers (Brachionus urceolaris, Floscidaria ringens, Hexarthra mira, Notommata glyphura) using two different techniques of microscopy: (1) the presence of filamentous actin was examined using phalloidin-fluorescent labelled specimens and a confocal laser scanning microscope (CLSM); (2) external morphology was investigated using a scanning electron microscope (SEM). B. urceolaris, F. ringens, and N. glyphura showed similar patterns of muscle distribution: a set of longitudinal muscles acting as head and foot retractors, and a set of circular muscles. However, the size and distribution of circular muscles differed among these species. H. mira differed from the other species in that it lacked circular muscles but possessed strong muscles that extended into each arm. The study showed that using both CLSM and SEM provides better resolution of the anatomy and external morphology of rotifers than using one of these techniques alone. This can facilitate better understanding of the complicated anatomy of these animals.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
ploima; Flosculariacea; actin filaments; phalloidin; CLSM; SEM
Elenco autori:
N. Santo, D. Fontaneto, U. Fascio, G. Melone, M. Caprioli
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