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, 1931 Isolierte Skelettnadeln von Spongien sind aus Gesteinen der verschiedensten Formationen des Indischen Archipels erwähnt worden, sie finden sich unter anderem auch in vielen tertiären Kalken und wahrscheinlich von Süsswasserspongien herrührend in Diatomeën-Erden.
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1990
Abstract The Porifera or Sponges are sedentary, aquatic, fundamentally radially symmetrical invertebrates. They possess a minimal diversity of cells and the simplest grade of metazoan organization (Hyman 1940; Brien 1973; Bergquist 1978).
F T Banner, E P E J Dyrynda, E A Dyrynda
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Abstract The Porifera or Sponges are sedentary, aquatic, fundamentally radially symmetrical invertebrates. They possess a minimal diversity of cells and the simplest grade of metazoan organization (Hyman 1940; Brien 1973; Bergquist 1978).
F T Banner, E P E J Dyrynda, E A Dyrynda
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Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2004
Phospholipase A2 (PLA2) catalytic activity was measured in aqueous extracts of 83 freeze-dried specimens representing 55 marine sponge species collected from the east coast of Australia including the Great Barrier Reef. High levels (>500 u/l) of PLA2 activity (defined as the amount of activity that releases 1 micromol of fatty acid per min) were found ...
Nevalainen, TJ, Quinn, RJ, Hooper, JNA
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Phospholipase A2 (PLA2) catalytic activity was measured in aqueous extracts of 83 freeze-dried specimens representing 55 marine sponge species collected from the east coast of Australia including the Great Barrier Reef. High levels (>500 u/l) of PLA2 activity (defined as the amount of activity that releases 1 micromol of fatty acid per min) were found ...
Nevalainen, TJ, Quinn, RJ, Hooper, JNA
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2022
This chapter focuses on the phylum Porifera which is one of the earliest-appearing extant animal phyla. The phylum consists of sponges, which are sessile, primarily suspension-feeding, multicellular animals that utilize flagellated cells called choanocytes to circulate water through a unique system of water canals.
Richard C. Brusca +2 more
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This chapter focuses on the phylum Porifera which is one of the earliest-appearing extant animal phyla. The phylum consists of sponges, which are sessile, primarily suspension-feeding, multicellular animals that utilize flagellated cells called choanocytes to circulate water through a unique system of water canals.
Richard C. Brusca +2 more
openaire +1 more source