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Mostrando ítems 21-30 de 1820
Responses and feedbacks of coupled biogeochemical cycles to climate change: Examples from terrestrial ecosystems
(Ecological Society of America, 2011-02)
The biogeochemical cycles of carbon (C), nitrogen (N), and phosphorus (P) are fundamental to life on Earth. Because organisms require these elements in strict proportions, the cycles of C, N, and P are coupled at molecular ...
Evidence for CRK3 participation in the cell division cycle of Trypanosoma cruzi
(2002)
Trypanosoma cruzi CRK3 gene encodes a Cdc2p related protein kinase (CRK). To establish if it has a role in the regulation of the parasite cell cycle we studied CRK3 expression and activity throughout three life cycle stages. ...
Effects of a glyphosate-based herbicide on the development and biochemical biomarkers of the freshwater copepod Notodiaptomus carteri (Lowndes, 1934)
(Academic Press Inc Elsevier Science, 2020-06-15)
In this work we analyzed the effects of Sulfosato Touchdown®, a glyphosate-based herbicide, on the ontogenic development and biochemical markers of the freshwater copepod Notodiaptomus carteri. A 30-days life-cycle experiment ...
NUTRIENTS CONCENTRATION AND RETRANSLOCATION IN THE Pinus taeda L. NEEDLESConcentração e retranslocação de nutrientes em acículas de Pinus taeda L.
(Universidade Federal de Santa Maria, 2009)
Seasonal changes in biochemical composition of the clam Eurhomalea exalbida (Bivalvia,Veneridae) from Ushuaia Bay (54º 50'S), Beagle Channel (Argentina)
(National Shellfisheries Association, 2004-02)
Seasonal changes in biochemical composition (protein, glycogen and lipid content) of different organs (FV: foot-visceral mass, M: adductor muscles and GMS: gills-mantle-siphons) of the clam Eurhomalea exalbida from Ushuaia ...
Nutrient allocation in the gonads of the sea urchin Arbacia dufresnii in different stages of gonadal development
(Int Science Services/Balaban Publishers, 2014-11-26)
This study reports nutrient allocation in different stages of gonadal development for two populations of the sea urchin Arbacia dufresnii off the Patagonian coast of Argentina (Nuevo Gulf and San Jorge Gulf). The biochemical ...
Hematological and biochemical profiles and histopathological evaluation of experimental intoxication by sodium fluoroacetate in cats
(Sage Publications Ltd, 2010-11-01)
Sodium fluoroacetate (SFAC) is a potent rodenticide, largely used for rodent and domestic pest control. The toxic effects of SFAC are caused by fluoroacetate, a toxic metabolite, whose toxic action blocks the Krebs cycle ...
Hematological and biochemical profiles and histopathological evaluation of experimental intoxication by sodium fluoroacetate in cats
(Sage Publications Ltd, 2010-11-01)
Sodium fluoroacetate (SFAC) is a potent rodenticide, largely used for rodent and domestic pest control. The toxic effects of SFAC are caused by fluoroacetate, a toxic metabolite, whose toxic action blocks the Krebs cycle ...
Physangulidine A, a withanolide from Physalis angulata, perturbs the cell cycle and induces cell death by apoptosis in prostate cancer cells
(American Chemical Society, 2013)
Recently, our group reported the discovery of three new withanolides, physangulidines A–C, from Physalis angulata. In this study, the biological effects of physangulidine A (1), which was the most active and abundant of ...