Results 81 to 90 of about 4,495 (224)

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

open access: yesJournal 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   +9 more
wiley   +1 more source

Vertical Transmission of a Phylogenetically Complex Microbial Consortium in the Viviparous Sponge \u3cem\u3eIrcinia Felix\u3c/em\u3e [PDF]

open access: yes, 2007
Many marine demosponges contain large amounts of phylogenetically complex yet highly sponge-specific microbial consortia within the mesohyl matrix, but little is known about how these microorganisms are acquired by their hosts.
Hentschel, Ute   +3 more
core   +1 more source

Offshore Neopycnodonte oyster reefs in the Mediterranean Sea [PDF]

open access: yes, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Angeletti, L., & Taviani, M. Offshore Neopycnodonte oyster reefs in the Mediterranean Sea. Diversity,
Angeletti, Lorenzo, Taviani, Marco
core   +1 more source

Discovery of missing link between demosponges and hexactinellids confirms palaeontological model of sponge evolution

open access: yesScientific Reports, 2017
The two major extant groups of siliceous sponges, Demospongiae and Hexactinellida, are generally regarded as sister groups forming the clade Silicea, although the nature of their last common ancestor is uncertain.
J. Botting, Yuandong Zhang, L. Muir
semanticscholar   +1 more source

Coralline demosponges ; a geobiological portrait

open access: yes, 2001
The polyphyletic coralline demosponges possess a calcareous basal skeleton of 4 major morphotypes. Each has its own phylogenetic history, with different mechanisms of formation. One extant taxon of each skeletal type has been investigated, and its biochemical (e.g., intracrystalline organic matrix proteins), geochemical (e.g., stable isotopes), and ...
Reitner, Joachim   +3 more
openaire   +2 more sources

Eocene phymaraphiniid demosponges from South Western Australia: filling the gap

open access: yesActa Palaeontologica Polonica, 2023
We describe two new genera of phymaraphiniid lithistid sponges Twertupia gen. nov. and Pickettispongia gen. nov. from the upper Eocene Pallinup Formation of South Western (SW) Australia based on new, rich and very well preserved material. Type material
ANDRZEJ PISERA   +2 more
doaj   +1 more source

On the dissolution of sponge silica: Assessing variability and biogeochemical implications

open access: yesFrontiers in Marine Science, 2022
The dissolution of the biogenic silica that constitutes the skeletons of silicifying organisms is an important mechanism for regenerating dissolved silicon in the ocean.
Manuel Maldonado   +8 more
doaj   +1 more source

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

open access: yesMolecular 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   +4 more
wiley   +1 more source

First Report on Chitin in a Non-Verongiid Marine Demosponge: The Mycale euplectellioides Case

open access: yesMarine Drugs, 2018
Sponges (Porifera) are recognized as aquatic multicellular organisms which developed an effective biochemical pathway over millions of years of evolution to produce both biologically active secondary metabolites and biopolymer-based skeletal structures ...
Sonia Żółtowska-Aksamitowska   +13 more
doaj   +1 more source

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

open access: yesEcology 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   +5 more
wiley   +1 more source

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