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Molecular systematics of sponges (Porifera)
Hydrobiologia, 2000The first application of molecular systematics to sponges was in the 1980s, using allozyme divergence to discriminate between conspecific and congeneric sponge populations. Since this time, a fairly large database has been accumulated and, although the first findings seemed to indicate that sponge species were genetically more divergent than those of ...
Borchiellini, Carole +3 more
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1985
The phylum Porifera is not a widely known group of animals. Although the skeleton of certain species, the bath sponges, is a common object, most people have no idea that it represents the collagenous skeleton of an animal. Even for Biologists, the sponges are poorly documented and their collagen remains one of the most puzzling in the animal kingdom ...
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The phylum Porifera is not a widely known group of animals. Although the skeleton of certain species, the bath sponges, is a common object, most people have no idea that it represents the collagenous skeleton of an animal. Even for Biologists, the sponges are poorly documented and their collagen remains one of the most puzzling in the animal kingdom ...
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Natural Products from Porifera
1976Since organic chemistry began, the chemistry of natural products from terrestrial organisms such as plants and fungi has been studied intensively; in contrast, marine species have received relatively little attention. However, in the last decade research in the field of marine products has increased sbstantially. The heightened interest in this area is
L. Minale +3 more
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1939
Die Schwamme (Parazoa oder Porifera) sind vielzellige Organismen (Metazoa) ohne echtes Gewebe und ohne echte Organe. Die Larve hat zwei ursprungliche Gewebsschichten, aber wahrend der Entwicklung vertauschen diese ihren Platz und werden zur Dermal- und Gastraischicht beim erwachsenen Tiere.
O. Storch, C. Wesenberg-Lund
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Die Schwamme (Parazoa oder Porifera) sind vielzellige Organismen (Metazoa) ohne echtes Gewebe und ohne echte Organe. Die Larve hat zwei ursprungliche Gewebsschichten, aber wahrend der Entwicklung vertauschen diese ihren Platz und werden zur Dermal- und Gastraischicht beim erwachsenen Tiere.
O. Storch, C. Wesenberg-Lund
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1932
Von den Schwammen mit ihrem monaxonen oder sekundar regellosasymmetrischen Korper sind fast keine Merkmale oder Strukturen bekannt, die unter das RL-Problem gehoren. Erwahnenswert sind nur einige Arten, z. B. Euplectella aspergillum Owen, deren Kieselnadeln zu schraubig oder wenigstens schraubenahnlich rechts- und linksgewundenen Zugen verflochten sind,
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Von den Schwammen mit ihrem monaxonen oder sekundar regellosasymmetrischen Korper sind fast keine Merkmale oder Strukturen bekannt, die unter das RL-Problem gehoren. Erwahnenswert sind nur einige Arten, z. B. Euplectella aspergillum Owen, deren Kieselnadeln zu schraubig oder wenigstens schraubenahnlich rechts- und linksgewundenen Zugen verflochten sind,
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