منابع مشابه
Oxyconformity in the intertidal worm Sipunculus nudus: the mitochondrial background and energetic consequences.
The energetic consequences of strict oxyconformity in the intertidal worm S. nudus were studied by characterizing the Po2 dependence of respiration in mitochondria isolated from the body wall tissue. Mitochondrial respiration rose in a Po2 range between 2.8 and 31.3 kPa from a mean of 56.5 to 223.9 nmol O mg protein(-1) h(-1). Respiration was sensitive to both salicylhydroxamic acid (SHAM) and ...
متن کاملIsolation and characterization of microsatellite DNA loci from the peanut worm, Sipunculus nudus.
Sipunculus nudus, the peanut worm, is the best known species in its genus. This unsegmented subtidal marine worm is consumed in some parts of Asia and is also used as fish bait. We found 20 microsatellite DNA markers for S. nudus. The number of alleles per polymorphic locus ranged from two to seven in a sample of 39 individuals. Observed and expected heterozygosities per polymorphic locus...
متن کاملProtective Effects of Polysaccharides from Sipunculus nudus on Beagle Dogs Exposed to γ-Radiation
The aim of the study is to investigate the radioprotective effect of polysaccharide extract from Sipunculus nudus (SNP). Beagle dogs were randomly divided into the following six groups. Group-1: Un-treated and un-irradiated controls. Group-2: Exposed to a single acute dose of 2 Gy γ-radiation alone. Groups-3, 4 and 5: Oral administration of SNP at 50, 100 or 200 mg/kg body weight once a day for...
متن کاملImmunologic Effect of Polysaccharides Extracted from Sipunculus nudus (SNP) on Hepatoma HepG2-bearing Mice
Since many studies have clarified the biological activity of polysaccharides, we investigated the effect of SNP which was the water-soluble polysaccharides extracted from Sipunculus nudus on Hepatoma HepG2-bearing Mice to verify the potential of SNP as an effective clinical agent for liver cancer therapy. SNP were administered at the doses of 50,100, and 200 mg/kg to HepG2-bearing mice to deter...
متن کاملMetabolic Rates at Different Oxygen Levels Determined by Direct and Indirect Calorimetry in the Oxyconformer Sipunculus Nudus
Oxygen uptake and the mode of energy production in Sipunculus nudus L. were determined at different oxygen levels by means of direct and indirect calorimetry. Oxygen consumption declined linearly with decreasing ambient POr A similar decrease in heat production was observed down to a Po2 of 8.66 kPa. At lower oxygen tensions, a discrepancy between aerobic and total heat production indicated the...
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1950
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1538578