Results 161 to 170 of about 4,207 (201)

Rethinking the Evolution of Tubulin Polymerization Promoting Proteins. [PDF]

Biology (Basel)
Orosz F.
europepmc   +1 more source

A mass spectrometry database for the identification of marine animal saponin-related metabolites. [PDF]

Anal Bioanal Chem
Smith SJ, Cummins SF, Motti CA, Wang T.
europepmc   +1 more source

Congruence between nuclear and mitochondrial genes in Demospongiae: A new hypothesis for relationships within the G4 clade (Porifera: Demospongiae)

Molecular Phylogenetics and Evolution, 2012
The current morphological classification of the Demospongiae G4 clade was tested using large subunit ribosomal RNA (LSU rRNA) sequences from 119 taxa.
D Erpenbeck, Nicole Boury-Esnault, Christine A Maggs   +2 more
exaly   +5 more sources

Structural studies on Demospongiae sponges from Gökçeada Island in the Northern Aegean Sea

Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2018
The Demospongiae is the largest Class in the phylum Porifera (sponges). Most sponge species in. the Class Demospongiae have a skeleton of siliceous spicules and/or protein spongin or both.
Sevgi Haman Bayari, Semra Ide, Bulent Topaloğlu   +2 more
exaly   +3 more sources

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Sterol composition and the classification of the demospongiae

Biochemical Systematics and Ecology, 1980
Abstract The Demospongiae (Porifera) have yielded a wide range of novel and conventional sterols; a sample of 55 species screened and reported on have yielded 45 distinct sterol structures. The taxonomic relevance of the occurrence of particular sterols or overall sterol complement is evaluated and has proved to be informative in the case of the ...
Patricia R Bergquist
exaly   +2 more sources

Reproductive strategies of Mycalecontarenii (Porifera: Demospongiae)

Marine Biology, 1998
The sexual and asexual phases of the reproductive cycle of the sponge Mycalecontarenii (Martens, 1824) were studied from samples collected over a period of 2 years (June 1994 to May 1996) in a Mediterranean coastal basin (Porto Cesareo, southwestern Apulia). The species is viviparous; year round it shows a discontinuous oocyte production. No males were
Corriero G., Scalera Liaci L., Nonnis Marzano C., Gaino E.   +3 more
openaire   +3 more sources

THE GENUS PLACOSPONGIA (DEMOSPONGIAE: CLIONAIDA) FROM THE COLOMBIAN CARIBBEAN

Zootaxa, 2023
The genus Placospongia Gray, 1867 is a group of sponges widely distributed in the world. It currently has 11 valid species, where five of those, Placospongia caribica Rützler et al., 2014, P. cristata Boury-Esnault, 1973, P. intermedia Sollas, 1888, P. ruetzleri van Soest, 2017 and P. giseleae Mácola & Menegola, 2021, are distributed in the Central
JESÚS DAVID-COLÓN, SVEN ZEA, DAIRO MARÍN-CASAS   +2 more
openaire   +3 more sources

Fossil Demospongia

Notes for a Short Course: Studies in Geology, 1983
Demospongia have persisted as a major class of sponges since inception of the record of the phylum in the Cambrian. The class includes about 95% of all sponges in modern seas and all of the known freshwater forms, as well. These sponges occupy environments that range from warm, shallow subtidal, high energy to quiet, cold oceanic deeps.
openaire   +1 more source

Class Demospongiae Sollas, 1885

2002
John N A Hooper, Hooper John N A, Van Soest Rob W M   +2 more
exaly   +2 more sources