منابع مشابه
Acute Toxicity of an Organophosphate Insecticide Chlorpyrifos to an Anuran, Rana cyanophlyctis
Background: Chlorpyrifos is an organophosphate pesticide that elicits broad-spectrum insecticidal activity against a number of important arthropod pests. Determining the insecticides’ toxicity to amphibians can give us a better understanding regarding the role of toxicants in amphibian declines. This information would be beneficial to assess their ecological relevance at environmental con...
متن کاملPurification and Characterization of an Antibacterial, Antifungal and Non Hemolytic Peptide from Rana Ridibunda
Amphibians have a large variety of antimicrobial peptides that serve as natural innate barriers limiting microbial infection or, in some instances, act as an integral component in response to inflammation or microbial infection. A novel peptide with antibacterial effects and without hemolytic activity was purified from skin secretions of Rana ridibunda by multisteps cation-exchange FPLC, revers...
متن کاملChlorophyll-Protein Complexes of Chlorella fusca
Chlorella, Chlorophyll-Protein Complexes, Polyacrylamide-Gel Electrophoresis, Standard Curves for Characterization of Chlorophyll Proteins Chlorophyll-protein complexes from thylakoids of the normal type and two mutants of Chlorella fusca were separated using sodium dodecyl sulfate acrylamide gel electrophoresis (PAGE). The properties of the chlorophyll-protein complexes of the three strains of...
متن کاملAcid exposure is an immune disruptor in adult Rana pipiens.
Acidic environments are physiological stressors for amphibians. The objective of the present study was to document the effect of an acidic environment on innate immune system function under controlled experimental conditions in Rana pipiens. We developed an in vivo assay, by injecting a suspension of 1-microm fluorescent beads in fluid thioglycollate, to induce peritonitis. The number of perito...
متن کاملMetabolic effects of dehydration on an aquatic frog, Rana pipiens.
Cellular responses to dehydration were analyzed in six organs of leopard frogs Rana pipiens. Frogs at 5 degrees C endured the loss of up to 50% of their total body water content but water contents of individual organs were strongly defended. Skeletal muscle water content was strongly affected by dehydration, dropping from 80.7% of wet mass in controls to 67.2% in frogs that had lost 50% of thei...
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ژورنال
عنوان ژورنال: Archiv für Entwicklungsmechanik der Organismen
سال: 1895
ISSN: 0949-944X,1432-041X
DOI: 10.1007/bf02084179