Results 61 to 70 of about 197 (131)

Body Polarity and Mineral Selectivity in the Demosponge Chondrosia reniformis

The Biological Bulletin, 1998
The skeleton of the common Mediterranean demosponge Chondrosia reniformis lacks endogenous spicules; but exogenous siliceous material is selectively incorporated into its collagenous ectosome, strengthening this layer. Nevertheless, the settling of sponge buds during asexual reproduction necessitates an active incorporation of the calcareous substratum
BAVESTRELLO, GIORGIO, BENATTI, UMBERTO, CALCINAI B., CATTANEO VIETTI R., CERRANO C., GIOVINE, MARCO, GIOVINE M., LANZA S., PRONZATO, ROBERTO, SARÀ M.   +9 more
openaire   +5 more sources

Validating the classics: Accurate reference gene panel for reliable RT-qPCR in Porifera.

PLoS ONE
Quantitative real-time PCR (RT-qPCR) is a powerful method for gene expression analysis, but its accuracy critically depends on the selection of stable reference genes for normalization.
Kseniia V Skorentseva, Nikolai P Melnikov, Alexander V Ereskovsky, Andrey I Lavrov, Aleena A Saidova   +4 more
doaj   +1 more source

3D Chitin Scaffolds of Marine Demosponge Origin for Biomimetic Mollusk Hemolymph-Associated Biomineralization Ex-Vivo

Marine Drugs, 2020
Structure-based tissue engineering requires large-scale 3D cell/tissue manufacture technologies, to produce biologically active scaffolds. Special attention is currently paid to naturally pre-designed scaffolds found in skeletons of marine sponges, which
Marcin Wysokowski, Tomasz Machałowski, Iaroslav Petrenko, Christian Schimpf, David Rafaja, Roberta Galli, Jerzy Ziętek, Snežana Pantović, Alona Voronkina, Valentine Kovalchuk, Viatcheslav N. Ivanenko, Bert W. Hoeksema, Cristina Diaz, Yuliya Khrunyk, Allison L. Stelling, Marco Giovine, Teofil Jesionowski, Hermann Ehrlich   +17 more
doaj   +1 more source

Transcriptomic Insights Into the Immune Repertoire of an Antarctic Sponge

Ecology and Evolution, Volume 15, Issue 12, December 2025.
Antarctic marine sponges are essential components of the benthic fauna, playing a crucial role in structuring this ecosystem through their own biological activities and their symbiotic relationships with diverse microorganisms. Yet, the transcriptional repertoire and the immune responses associated with interactions with microorganisms in this unique ...
Leslie K. Daille, Mario Moreno‐Pino, Eduardo Hajdu, Nicole Trefault   +3 more
wiley   +1 more source

Demosponge diversity from North Sulawesi, with the description of six new species

ZooKeys, 2017
Sponges are key components of the benthic assemblages and play an important functional role in many ecosystems, especially in coral reefs. The Indonesian coral reefs, located within the so-called “coral triangle”, are among the richest in the world ...
Barbara Calcinai, Azzurra Bastari, Giorgio Bavestrello, Marco Bertolino, Santiago Bueno Horcajadas, Maurizio Pansini, Daisy M. Makapedua, Carlo Cerrano   +7 more
doaj   +3 more sources

Why Homoscleromorph Sponges Have Ciliated Epithelia: Evidence for an Ancestral Role in Mucociliary Driven Particle Flux

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 344, Issue 8, Page 505-516, December 2025.
Epithelia are typically ciliated, except in sponges. Of all Porifera only Homoscleromorphs have motile cilia on their epithelia. Our data highlight the presence of cilia and mucociliary particle transport as a common feature of metazoa and a secondary loss in other sponge lineages.
Veronica L. Price, Anudi Nanayakkara, Andrea Pasini, Elsa Bazellières, Amelie Vernale, Caroline Rocher, Carole Borchiellini, Andre Le Bivic, Emmanuelle Renard, Sally P. Leys   +9 more
wiley   +1 more source

Methylome Profiling of a Deuterostome Invertebrate Using Oxford Nanopore Technology (ONT)

Molecular Ecology Resources, Volume 25, Issue 8, November 2025.
ABSTRACT DNA methylation is crucial for genome regulation and provides key insights into the interaction between genetics and environmental factors, offering valuable perspectives for ecological research. However, knowledge of DNA methylation patterns in nonmodel invertebrates remains limited.
Sarah Lok Ting Kwong, Alyssa Maree Budd, Julia Yun‐Hsuan Hung, Cecilia Villacorta‐Rath, Sven Uthicke   +4 more
wiley   +1 more source

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

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   +1 more source

A Comprehensive DNA Barcode Reference Library for the Macroinvertebrates of Scottish Seagrass Beds Using Oxford Nanopore Flongle Flowcells

Ecology and Evolution, Volume 15, Issue 10, October 2025.
In this study we use ONT Flongle Flowcells to produced DNA barcodes for 146 seagrass associated marine invertebrate OTUs collected from four seagrass beds in Scotland, targeting COI and 18S V4 regions. We generate the first DNA barcode reference library for seagrass beds in Scotland to support future biomonitoring of these priority habitats.
E. G. Ross, S. B. Piertney, J. D. Sigwart, N. F. Crook, A. Moreau, K. K. S. Layton   +5 more
wiley   +1 more source

Determination of the Halogenated Skeleton Constituents of the Marine Demosponge Ianthella basta

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   +1 more source