Results 1 to 10 of about 1,652 (201)

A global dataset of demosponge distribution records [PDF]

open access: yesData in Brief
Biodiversity information in the form of species occurrence records is key for monitoring and predicting current and future biodiversity patterns, as well as for guiding conservation and management strategies. However, the reliability and accuracy of this
Ariadni Vafeiadou   +2 more
doaj   +6 more sources

Respiration kinetics and allometric scaling in the demosponge Halichondria panicea [PDF]

open access: yesBMC Ecology and Evolution, 2023
Background The aquiferous system in sponges represents one of the simplest circulatory systems used by animals for the internal uptake and distribution of oxygen and metabolic substrates.
Lars Kumala   +2 more
doaj   +6 more sources

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

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   +2 more
exaly   +4 more sources

A remarkable new halichondrid demosponge, Ptilospongia hemisphaeroidalis, from the latest Ordovician Beigong Biota, South China [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
A new halichondrid demosponge bubarid Ptilospongia hemisphaeroidalis gen. et sp. nov. is described from the latest Ordovician Beigong Biota in Jingxian County, Anhui Province, South China.
Lixia Li, Joachim Reitner
doaj   +2 more sources

Phylomitogenomics bolsters the high-level classification of Demospongiae (phylum Porifera). [PDF]

open access: yesPLoS ONE, 2023
Class Demospongiae is the largest in the phylum Porifera (Sponges) and encompasses nearly 8,000 accepted species in three subclasses: Keratosa, Verongimorpha, and Heteroscleromorpha.
Dennis V Lavrov   +6 more
doaj   +2 more sources

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

open access: yesPLoS 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   +4 more
doaj   +2 more sources

Microbiome changes in the sponge Halichondria panicea along the Baltic Sea salinity gradient [PDF]

open access: yesFrontiers in Microbiology
The Baltic Sea is characterized by a strong salinity gradient, which impacts the diversity and composition of free-living macro- and microorganisms. Much less is known about how host-associated microorganisms are affected by decreasing salinities. Marine
Philipp Hoy   +4 more
doaj   +2 more sources

Creation of a 3D Goethite–Spongin Composite Using an Extreme Biomimetics Approach [PDF]

open access: yesBiomimetics, 2023
The structural biopolymer spongin in the form of a 3D scaffold resembles in shape and size numerous species of industrially useful marine keratosan demosponges.
Anita Kubiak   +17 more
doaj   +2 more sources

Contraction-Expansion and the Effects on the Aquiferous System in the Demosponge Halichondria panicea

open access: yesFrontiers in Marine Science, 2020
Contractile behavior is common among sponges despite their lack of nerves and muscles. As sessile filter-feeders, sponges rely on water with suspended food particles being pumped through their aquiferous system.
Josephine Goldstein   +2 more
exaly   +3 more sources

Seventeen new complete mtDNA sequences reveal extensive mitochondrial genome evolution within the Demospongiae. [PDF]

open access: yesPLoS ONE, 2008
Two major transitions in animal evolution--the origins of multicellularity and bilaterality--correlate with major changes in mitochondrial DNA (mtDNA) organization.
Xiujuan Wang, Dennis V Lavrov
doaj   +1 more source

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