Results 31 to 40 of about 3,826 (235)

Indigenous demosponge spicules in a Late Devonian stromatoporoid basal skeleton from the Frasnian of Belgium [PDF]

open access: yes, 2014
This paper records the first example of a demosponge spicule framework in a single specimen of a Devonian stromatoporoid from the Frasnian of southern Belgium.
Alvarez   +51 more
core   +1 more source

Diversity in a Cold Hot-Spot: DNA-Barcoding Reveals Patterns of Evolution among Antarctic Demosponges (Class Demospongiae, Phylum Porifera). [PDF]

open access: yesPLoS ONE, 2015
The approximately 350 demosponge species that have been described from Antarctica represent a faunistic component distinct from that of neighboring regions.
Sergio Vargas   +5 more
doaj   +1 more source

Calcisponges have a ParaHox gene and dynamic expression of dispersed NK homeobox genes [PDF]

open access: yes, 2014
This study was funded by the Sars Centre core budget to M. Adamska. Sequencing was performed at the Norwegian High Throughput Sequencing Centre funded by the Norwegian Research Council. O.M.R. and D.E.K.F.
A Saudemont   +27 more
core   +2 more sources

Description of a new species of Membranobalanus (Crustacea, Cirripedia) from southern Australia [PDF]

open access: yesZooKeys, 2019
A new species of sponge-inhabiting barnacle, Membranobalanus porphyrophilus sp. nov., is described herein. This species can be distinguished from all other congeners by a combination of characters, in particular by the shapes of the tergum and scutum and
Andrew M. Hosie   +3 more
doaj   +3 more sources

Biological activities of ethanolic extracts from deep-sea antarctic marine sponges [PDF]

open access: yes, 2013
We report on the screening of ethanolic extracts from 33 deep-sea Antarctic marine sponges for different biological activities. We monitored hemolysis, inhibition of acetylcholinesterase, cytotoxicity towards normal and transformed cells and growth ...
Ambrožič Avguštin, Jerneja   +9 more
core   +3 more sources

RNA interference in marine and freshwater sponges [PDF]

open access: yes, 2011
Background: The marine sponge Tethya wilhelma and the freshwater sponge Ephydatia muelleri are emerging model organisms to study evolution, gene regulation, development, and physiology in non-bilaterian animal systems. Thus far, functional methods (i.e.,
Cieniewicz, Brandon   +12 more
core   +1 more source

Antifouling activity of twelve demosponges from Brazil [PDF]

open access: yesBrazilian Journal of Biology, 2013
Benthic marine organisms are constantly exposed to fouling, which is harmful to most host species. Thus, the production of secondary metabolites containing antifouling properties is an important ecological advantage for sessile organisms and may also provide leading compounds for the development of antifouling paints.
Ribeiro, SM.   +5 more
openaire   +5 more sources

The complete mitochondrial genome of sponge Halichondria okadai (Demospongiae, Suberitida, Halichondriidae) from Korea water

open access: yesMitochondrial DNA. Part B. Resources, 2017
The mitogenome sequence of Sponge Halichondria okadai (Kadota, 1922) (Suberitida, Halichondriidae) was determined for the first time in this study. The circular genome is 20,722 bp in length, containing 14 protein coding genes (PCGs), two ribosomal RNAs (
Hana Kim   +6 more
doaj   +1 more source

First report of Crumillospongia (Demospongea) from the Cambrian of Europe (Murero biota, Spain) [PDF]

open access: yes, 2011
The demosponge genus Crumillospongia, originally described from the Burgess Shale (middle Cambrian of Canada), has only been cited from lower and middle Cambrian localities of North America and China.
Eysel, P.   +8 more
core   +1 more source

Shallow waters Demosponges of the Galápagos Islands

open access: hybridRevue suisse de zoologie, 1997
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Ruth Desqueyroux-Faúndez   +1 more
openalex   +4 more sources

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