Larval development in Guancha arnesenae (Porifera, Calcispongiae, Calcinea)
Larval development and follicle structure of a representative of the Calcinea (Calcispongiae) Guancha arnesenae from the White Sea have been studied for the first time at the ultrastructural level. The follicle in G. arnesenae has an unusual structure: it consists of trapezoid cells rich in phagosom...
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ftvliz:oai:oma.vliz.be:239370 2023-05-15T18:43:53+02:00 Larval development in Guancha arnesenae (Porifera, Calcispongiae, Calcinea) Ereskovsky, A.V. Willenz, P. 2008 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=239370 en eng info:eu-repo/semantics/altIdentifier/wos/000256931200004 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1007/s00435-008-0061-9 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=239370 info:eu-repo/semantics/restrictedAccess %3Ci%3EZoomorphology+127%283%29%3C%2Fi%3E%3A+175-187.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00435-008-0061-9%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00435-008-0061-9%3C%2Fa%3E Calcinea info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2008 ftvliz https://doi.org/10.1007/s00435-008-0061-9 2022-05-01T10:17:52Z Larval development and follicle structure of a representative of the Calcinea (Calcispongiae) Guancha arnesenae from the White Sea have been studied for the first time at the ultrastructural level. The follicle in G. arnesenae has an unusual structure: it consists of trapezoid cells rich in phagosomes and a surrounding dense collagen layer. Follicular cells differentiate from choanocytes. Cleavage results in formation of a hollow, equal, non-polarized coeloblastula. Larval morphogenesis occurs by means of direct hollow blastula formation without any individual cell or cell layer movements. The coeloblastula (calciblastula) larva of G. arnesenae is completely ciliated. The larva also contains rare non-ciliated cells: vacuolar cells, bottle-shaped cells and free cells in a central cavity. The basal ciliary apparatus of larval cells includes the basal body, an accessory centriole oriented perpendicularly to it, the basal foot, and two cross-striated rootlets. A bundle of microtubules emerges from the side of the basal body, opposite to the basal foot, running parallel to the outer surface. All bundles of cells are parallel to each other and oriented towards the posterior larval pole, forming a transverse cytoskeletal system. Specialized intercellular junctions in the apical regions of all ciliated cells are revealed for the first time in a Calcispongiae larva. The central larval cavity contains symbiotic bacteria, which are included inside the embryo at the blastula stage. Article in Journal/Newspaper White Sea Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) White Sea Zoomorphology 127 3 175 187 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
topic |
Calcinea |
spellingShingle |
Calcinea Ereskovsky, A.V. Willenz, P. Larval development in Guancha arnesenae (Porifera, Calcispongiae, Calcinea) |
topic_facet |
Calcinea |
description |
Larval development and follicle structure of a representative of the Calcinea (Calcispongiae) Guancha arnesenae from the White Sea have been studied for the first time at the ultrastructural level. The follicle in G. arnesenae has an unusual structure: it consists of trapezoid cells rich in phagosomes and a surrounding dense collagen layer. Follicular cells differentiate from choanocytes. Cleavage results in formation of a hollow, equal, non-polarized coeloblastula. Larval morphogenesis occurs by means of direct hollow blastula formation without any individual cell or cell layer movements. The coeloblastula (calciblastula) larva of G. arnesenae is completely ciliated. The larva also contains rare non-ciliated cells: vacuolar cells, bottle-shaped cells and free cells in a central cavity. The basal ciliary apparatus of larval cells includes the basal body, an accessory centriole oriented perpendicularly to it, the basal foot, and two cross-striated rootlets. A bundle of microtubules emerges from the side of the basal body, opposite to the basal foot, running parallel to the outer surface. All bundles of cells are parallel to each other and oriented towards the posterior larval pole, forming a transverse cytoskeletal system. Specialized intercellular junctions in the apical regions of all ciliated cells are revealed for the first time in a Calcispongiae larva. The central larval cavity contains symbiotic bacteria, which are included inside the embryo at the blastula stage. |
format |
Article in Journal/Newspaper |
author |
Ereskovsky, A.V. Willenz, P. |
author_facet |
Ereskovsky, A.V. Willenz, P. |
author_sort |
Ereskovsky, A.V. |
title |
Larval development in Guancha arnesenae (Porifera, Calcispongiae, Calcinea) |
title_short |
Larval development in Guancha arnesenae (Porifera, Calcispongiae, Calcinea) |
title_full |
Larval development in Guancha arnesenae (Porifera, Calcispongiae, Calcinea) |
title_fullStr |
Larval development in Guancha arnesenae (Porifera, Calcispongiae, Calcinea) |
title_full_unstemmed |
Larval development in Guancha arnesenae (Porifera, Calcispongiae, Calcinea) |
title_sort |
larval development in guancha arnesenae (porifera, calcispongiae, calcinea) |
publishDate |
2008 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=239370 |
geographic |
White Sea |
geographic_facet |
White Sea |
genre |
White Sea |
genre_facet |
White Sea |
op_source |
%3Ci%3EZoomorphology+127%283%29%3C%2Fi%3E%3A+175-187.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00435-008-0061-9%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1007%2Fs00435-008-0061-9%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000256931200004 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1007/s00435-008-0061-9 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=239370 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00435-008-0061-9 |
container_title |
Zoomorphology |
container_volume |
127 |
container_issue |
3 |
container_start_page |
175 |
op_container_end_page |
187 |
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1766234415700115456 |