Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Morphology of a new interstitial Psammodrilus (Psammodrilidae, Annelida) from Sardinia, Italy |
| Abstract | Psammodrilus curinigallettii n. sp., the first Mediterranean endemic psammodrilid, is here described combining light, scanning electron, and confocal laser scanning microscopy. The new species is characterized by the presence of autapomorphic segmental diamond glands and a unique combination of the following features: small size, simple pharyngeal apparatus, head entirely ciliated with no distinct collar region, presence of no more than three uncini in each abdominal parapodium. Confocal laser scanning microscopy studies of the F-actin stained musculature revealed (i) a dense grid of longitudinal muscles surrounded by regularly arranged circular muscles along the entire trunk, (ii) oblique muscles inserting at the uncini in the abdomen, (iii) muscularized thoracic cirri, and (iv) a limited pharyngeal muscular diaphragm in the posterior peristomium. Immunoreactivity against tubulin revealed two pairs of fully ciliated nephridia opening in segments 7 and 8. The lack of a well-defined collar region, small size, and low number of chaetae resembles traits found in juvenile forms of larger congeners, indicating a progenetic origin of P. curinigallettii n. sp. from larger ancestors. (C) 2015 Elsevier GmbH. All rights reserved. |
| Source | Zoologischer Anzeiger 259, pp. 13–21 |
| Keywords | MediterraneanMeiofaunaMusculatureInterstitial annelidsProgenesisMicroscopic animalsConfocal laser microscopyNephridiaBarcoding |
| Journal | Zoologischer Anzeiger |
| Editor | Gustav Fischer Verlag., Jena, Germania |
| Year | 2015 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.jcz.2015.09.001 |
| Authors | Worsaae, Katrine; Kvindebjerg, Kirsten; Martinez, Alejandro |
| Text | 417482 2015 10.1016/j.jcz.2015.09.001 ISI Web of Science WOS 000367112200002 Mediterranean Meiofauna Musculature Interstitial annelids Progenesis Microscopic animals Confocal laser microscopy Nephridia Barcoding Morphology of a new interstitial Psammodrilus Psammodrilidae, Annelida from Sardinia, Italy Worsaae, Katrine; Kvindebjerg, Kirsten; Martinez, Alejandro Univ Copenhagen Psammodrilus curinigallettii n. sp., the first Mediterranean endemic psammodrilid, is here described combining light, scanning electron, and confocal laser scanning microscopy. The new species is characterized by the presence of autapomorphic segmental diamond glands and a unique combination of the following features small size, simple pharyngeal apparatus, head entirely ciliated with no distinct collar region, presence of no more than three uncini in each abdominal parapodium. Confocal laser scanning microscopy studies of the F actin stained musculature revealed i a dense grid of longitudinal muscles surrounded by regularly arranged circular muscles along the entire trunk, ii oblique muscles inserting at the uncini in the abdomen, iii muscularized thoracic cirri, and iv a limited pharyngeal muscular diaphragm in the posterior peristomium. Immunoreactivity against tubulin revealed two pairs of fully ciliated nephridia opening in segments 7 and 8. The lack of a well defined collar region, small size, and low number of chaetae resembles traits found in juvenile forms of larger congeners, indicating a progenetic origin of P. curinigallettii n. sp. from larger ancestors. C 2015 Elsevier GmbH. All rights reserved. 259 Published version Articolo in rivista Gustav Fischer Verlag. 0044 5231 Zoologischer Anzeiger Zoologischer Anzeiger Zool. Anz. alejandro.martinezgarcia MARTINEZ GARCIA ALEJANDRO |