Results 201 to 210 of about 3,826 (235)

Independent origins of spicules reconcile palaeontological and molecular evidence of the evolutionary history of sponges

Rossi ME, Keating JN, Kenny NJ, Kenny NJ, Giacomelli M, Alvarez-Carretero S, Schuster A, Cardenas P, Taboada S, Koutsouveli V, Donoghue P, Riesgo A, Pisani D.   +12 more
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Evolutionary conservation of dopamine-mediated cellular plasticity in Arctic sponges (Porifera). [PDF]

Front Mol Biosci
Kravchuk OI, Finoshin AD, Nikishina YO, Melnikova VI, Kublanov IV, Sutormin DA, Rusanova AN, Ri MT, Isaev AB, Mikhailov KV, Ziganshin RH, Adameyko KI, Anashkina AA, Ignatyuk VM, Gornostaev NG, Voronezhskaya EE, Sokolova AM, Mikhailov VS, Lyupina YV.   +18 more
europepmc   +1 more source

An Astaxanthin-Binding Ependymin-Related Purple Protein Responsible for the Coloration of a Marine Purple Sponge, <i>Haliclona</i> sp. [PDF]

Mar Drugs
Kaneko T, Asano T, Kawasaki S.
europepmc   +1 more source

On the Phylogeny of Halichondrid Demosponges

, 2004
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Nanostructural features of demosponge biosilica

Journal of Structural Biology, 2003
Recent interest in the optical and mechanical properties of silica structures made by living sponges, and the possibility of harnessing these mechanisms for the synthesis of advanced materials and devices, motivate our investigation of the nanoscale structure of these remarkable biomaterials. Scanning electron and atomic force microscopic (SEM and AFM)
James C, Weaver, Lía I, Pietrasanta, Niklas, Hedin, Bradley F, Chmelka, Paul K, Hansma, Daniel E, Morse   +5 more
openaire   +2 more sources

Development in primary cell culture of demosponges

Journal of Biotechnology, 2003
We have established primary cell culture of the marine demosponge Dysidea avara and Suberites domuncula. Microbial contamination was controlled by the use of a pool of antibiotics confirming the goodness of this procedure. Effect of pH, temperature and light was studied to establish the better growth conditions.
De Rosa Salvatore, De Caro Salvatore, Iodice Carmine, Tommonaro Giuseppina, Stefanov Kamen, Popov Simeon   +5 more
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Silica Deposition in Demosponges

2003
Demosponges are the most widespread class of the phylum Porifera. They secrete siliceous (spicules) and proteinaceous (fibers) elements, which constitute the skeleton that shapes the sponge growth and allow cell organization and establishment of the aquiferous system through which the surrounding water accesses the internal cells.
Maria J, Uriz, Xavier, Turon, Mikel A, Becerro   +2 more
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Piwi expression in archeocytes and choanocytes in demosponges: insights into the stem cell system in demosponges

Evolution & Development, 2010
SUMMARY Little is known about the stem cells of organisms early in metazoan evolution. To characterize the stem cell system in demosponges, we identified Piwi homologs of a freshwater sponge, Ephydatia fluviatilis, as candidate stem cell (archeocyte) markers. EfPiwiA mRNA was expressed in cells with archeocyte cell morphological features.
Noriko, Funayama, Mikiko, Nakatsukasa, Kurato, Mohri, Yoshiki, Masuda, Kiyokazu, Agata   +4 more
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Mesostructure from Hydration Gradients in Demosponge Biosilica

Chemistry – A European Journal, 2014
AbstractOrganisms of the phylum Porifera, that is, sponges, utilize enzymatic hydrolysis to concatenate bioavailable inorganic silicon to produce lightweight, strong, and often flexible skeletal elements called spicules. In their optical transparency, these remarkable biomaterials resemble fused silica, despite having been formed under ambient marine ...
James R, Neilson, Nathan C, George, Meredith M, Murr, Ram, Seshadri, Daniel E, Morse   +4 more
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Siliceous spicules in marine demosponges (example Suberites domuncula)

Micron, 2006
All metazoan animals comprise a body plan of different complexity. Since--especially based on molecular and cell biological data--it is well established that all metazoan phyla, including the Porifera (sponges), evolved from a common ancestor the search for common, basic principles of pattern formation (body plan) in all phyla began.
Werner E G, Müller, Sergey I, Belikov, Wolfgang, Tremel, Carole C, Perry, Winfried W C, Gieskes, Alexandra, Boreiko, Heinz C, Schröder   +6 more
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