“Lepidosiren paradoxa”
نویسندگان
چکیده
منابع مشابه
Respiratory function in the South American lungfish, Lepidosiren paradoxa (Fitz).
Few animal species have aroused as much excitement upon their discovery as the South American lungfish. Its possession of distinct piscine as well as amphibian characters made the animal a link in the transition of vertebrate life from water breathing to air breathing. Its special attributes are clearly reflected in its name, Lepidosiren paradoxa. Physiological experimentation on respiratory fu...
متن کاملSpecialized metabolism and biochemical suppression during aestivation of the extant South American lungfish--Lepidosiren paradoxa.
Lepidosiren paradoxa (pirambóia) is the single representative of Dipnoan (lungfish) in South America. This species is considered a living fossil, in spite of some reports describing this fish as having a very specialized life style. It aestivates during the dry season, and has developed metabolic adaptations to cope with both flooding and drought. The literature describing its tissue ultra-stru...
متن کاملEimeria lepidosirenis n.sp. (Apicomplexa:Eimeriidae) of the South American lungfish Lepidosiren paradoxa (Osteichthyes:Dipnoi) from Amazonian Brazil.
The mature oocysts of Eimeria lepidosirenis n.sp. are described in faeces removed from the lower region of the intestine of a single specimen of the South American lungfish Lepidosiren paradoxa, from Belém, state of Pará, Amazonian Brazil. Oocysts with endogenous sporulation: spherical to slightly subspherical, 30.8 x 30.3 microm (28.1 x 25.9 -33.3 x 31.8), shape-index (ratio length/width) 1.0,...
متن کاملMorphology, Characterization and Distribution of Retinal Photoreceptors in the South American (Lepidosiren paradoxa) and Spotted African (Protopterus dolloi) Lungfishes
Citation: Appudurai AM, Hart NS, Zurr I and Collin SP (2016) Morphology, Characterization and Distribution of Retinal Photoreceptors in the South American (Lepidosiren paradoxa) and Spotted African (Protopterus dolloi) Lungfishes. Front. Ecol. Evol. 4:78. doi: 10.3389/fevo.2016.00078 Morphology, Characterization and Distribution of Retinal Photoreceptors in the South American (Lepidosiren parad...
متن کاملA PAPS-Dependent Sulfotransferase in Cyanophora paradoxa
A 3'-phosphoadenosine-5'-phosphosulfate (PAPS) dependent sulfotransferase was partly purified from Cyanophora paradoxa. This enzyme has a pH-optimum of 8.5 and was found to be specific for P A P S ; the K m for this nucleotide was determined to be 8.3 juu. In crude extracts monothiols like glutathione, mercaptoethanol, or cysteine catalyzed a rate of about 80% of the rate obtained with dithioer...
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ژورنال
عنوان ژورنال: Nature
سال: 1887
ISSN: 0028-0836,1476-4687
DOI: 10.1038/035343a0