The drumstick-like organs of the marine interstitialgastrotrich Pleurodasys helgolandicus Remane, 1927were studied using optical and electron microscopy, inorder to widen our knowledge of the sensory organs amonggastrotrichs. The drumstick-like sensory organs are paired,symmetrical structures located on the dorsal side of thepost-cephalic region of the body. Each sensory organ isformed by an outgrowth of the lamellar exocuticle coveringthe body surface, and it consists of an elongated, cylindricalhollow stalk surmounted by a hollow bulbous tip, housingin its cavity a dense spherical body. Compared with thethree main sensory structures recognized among Gastrotricha,i.e., mechanoreceptors, photoreceptors, and chemoreceptors,the organization of the drumstick-like sensoryorgan matches that of mechanoreceptors. In particular, wesuggest that the drumstick-like sensory organs of P. helgolandicusare gravireceptor organs, analogous to the orthopteran“plumb bob-like” receptors. This is the firstdescription of a putative gravireceptor organ among gastrotrichs.
The unique gravireceptor organs of Pleurodasys helgolandicus (Gastrotricha: Macrodasyida) / Marotta, R.; Todaro, Mary Antonio Donatello; Ferraguti, M.. - In: ZOOMORPHOLOGY. - ISSN 0720-213X. - STAMPA. - 127(2008), pp. 111-119.
Data di pubblicazione: | 2008 |
Titolo: | The unique gravireceptor organs of Pleurodasys helgolandicus (Gastrotricha: Macrodasyida) |
Autore/i: | Marotta, R.; Todaro, Mary Antonio Donatello; Ferraguti, M. |
Autore/i UNIMORE: | |
Rivista: | |
Volume: | 127 |
Pagina iniziale: | 111 |
Pagina finale: | 119 |
Codice identificativo ISI: | WOS:000254240700004 |
Codice identificativo Scopus: | 2-s2.0-41149116541 |
Citazione: | The unique gravireceptor organs of Pleurodasys helgolandicus (Gastrotricha: Macrodasyida) / Marotta, R.; Todaro, Mary Antonio Donatello; Ferraguti, M.. - In: ZOOMORPHOLOGY. - ISSN 0720-213X. - STAMPA. - 127(2008), pp. 111-119. |
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