Results 11 to 20 of about 3,826 (235)

Filtration Rates and Scaling in Demosponges

Journal of Marine Science and Engineering, 2022
Demosponges are modular filter-feeding organisms that are made up of aquiferous units or modules with one osculum per module. Such modules may grow to reach a maximal size.
Hans Ulrik Riisgård, Poul S. Larsen
doaj   +3 more sources

Contraction Dynamics and Respiration of Small Single-Osculum Explants of the Demosponge Halichondria panicea

Frontiers in Marine Science, 2018
Sponges pump large amounts of seawater through their water canal system, providing both food and oxygen to the sponge body. Sponge pumping activity may show considerable variation as a consequence of contractile behavior, which includes contraction and ...
Lars Kumala, Lars Kumala, Lars Kumala, Lars Kumala, Donald Eugene Canfield   +4 more
doaj   +2 more sources

The ontogeny of choanocyte chambers during metamorphosis in the demosponge Amphimedon queenslandica [PDF]

EvoDevo, 2016
Background The aquiferous body plan of poriferans revolves around internal chambers comprised of choanocytes, a cell type structurally similar to choanoflagellates.
Shunsuke Sogabe, Nagayasu Nakanishi, Bernard M. Degnan   +2 more
doaj   +2 more sources

Calcite Nanotuned Chitinous Skeletons of Giant Ianthella basta Marine Demosponge. [PDF]

Int J Mol Sci, 2021
Kertmen A, Petrenko I, Schimpf C, Rafaja D, Petrova O, Sivkov V, Nekipelov S, Fursov A, Stelling AL, Heimler K, Rogoll A, Vogt C, Ehrlich H.   +12 more
europepmc   +3 more sources

Determination of the Halogenated Skeleton Constituents of the Marine Demosponge Ianthella basta [PDF]

Marine Drugs, 2017
Demosponges of the order Verongida such as Ianthella basta exhibit skeletons containing spongin, a collagenous protein, and chitin. Moreover, Verongida sponges are well known to produce bioactive brominated tyrosine derivatives.
Susanne Ueberlein, Susanne Machill, Peter J. Schupp, Eike Brunner   +3 more
doaj   +2 more sources

Electrolysis as a Universal Approach for Isolation of Diverse Chitin Scaffolds from Selected Marine Demosponges. [PDF]

Mar Drugs, 2022
Nowacki K, Galiński M, Fursov A, Voronkina A, Meissner H, Petrenko I, Stelling AL, Ehrlich H.   +7 more
europepmc   +3 more sources

Demosponge steroid biomarker 26-methylstigmastane provides evidence for Neoproterozoic animals [PDF]

Nature Ecology & Evolution, 2018
Sterane biomarkers preserved in ancient sedimentary rocks hold promise for tracking the diversification and ecological expansion of eukaryotes. The earliest proposed animal biomarkers from demosponges (Demospongiae) are recorded in a sequence around 100 ...
Cárdenas, Paco, Grosjean, Emmanuelle, Grotzinger, John P., Gunasekera, Sunithi, Love, Gordon D., Rohrssen, Megan, Sperling, Erik A., Summons, Roger E., Zumberge, J. Alex   +8 more
core   +8 more sources

Establishment of Transgenesis in the Demosponge Suberites domuncula [PDF]

Genetics, 2018
Abstract Sponges (Porifera) represent one of the most basally branching animal clades with key relevance for evolutionary studies, stem cell biology, and development. Despite a long history of sponges as experimental model systems, however, functional molecular studies are still very difficult to perform in these animals. Here, we report
Roger Revilla‐i‐Domingo, Clara Schmidt, Clara Zifko, Florian Raible   +3 more
openalex   +4 more sources

Direct Development of Golf Ball Sponges, Genus Craniella (Demospongiae, Tetractinellida) From the Northeast Atlantic Ocean. [PDF]

Mol Reprod Dev
ABSTRACT Among the eight types of development in sponges, the least common and least studied is direct, non‐larval development during viviparity. To supplement our knowledge of this rare type of demosponge development, we present here a description of the embryonic development of four species of the genus Craniella (Demospongiae, order Tetractinellida)
Cárdenas P, Chenesseau S, Drewery J, Ereskovsky A.   +3 more
europepmc   +2 more sources

Some Like It Fat: Comparative Ultrastructure of the Embryo in Two Demosponges of the Genus Mycale (Order Poecilosclerida) from Antarctica and the Caribbean [PDF]

, 2015
0000-0002-7993-1523© 2015 Riesgo et al. This is an open access article distributed under the terms of the Creative Commons Attribution License [4.0], which permits unrestricted use, distribution, and reproduction in any medium, provided the original ...
A Clarke, A Clarke, A Clarke, A Nørrevang, A Riesgo, A Riesgo, A Riesgo, AC Giese, AE Smith, AG Marsh, Ana Riesgo, Andrea Bertran, AR Pérez-Porro, AV Ereskovsky, AV Ereskovsky, B Waddell, B Waddell, C Cerrano, C Lévi, C Lévi, Conxita Avila, DA Pace, E Anderson, E Gaino, E Gaino, E Lepore, E Meroz, G Corriero, G Feller, G Kattner, GB Picken, H Boulekbache, H Heras, HV Wilson, HV Wilson, J Kowalke, James Bell, JB McClintock, JE Thompson, Joan Solà, JP Diaz, JR Pawlik, JS Pearse, JS Pearse, KH Sharp, KJ Eckelbarger, Laura Sánchez-Vila, LS Peck, LS Peck, M Maldonado, M Maldonado, M Maldonado, M Maldonado, M Maldonado, M Maldonado, M Sciscioli, M Sciscioli, M Sciscioli, M Wapstra, MF Gallissian, MJ Uriz, MS Hill, NL Bienati, NM Whiteley, O Kinne, O Maas, P Brien, PE Fell, PE Fell, PR Bergquist, PR Bergquist, PR Bergquist, R Borojevic, R Day, S Schmitt, S Taboada, Sergio Taboada, TF Goreau, TL Loh, TL Loh, TL Simpson, W Hagen, Y Delage, Y Watanabe   +83 more
core   +14 more sources