Aquatic Activity
Mostrando 1-12 de 162 artigos, teses e dissertações.
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1. Enzymatic efficiency of the decomposing microbiota: what does really matter for aquatic macrophytes invasions?
ABSTRACT Biological invasions have negative impacts on different ecosystem-level functions, such as nutrient cycling. In aquatic environments, exotic litter can change the activity of the decomposer microbiota. We tested whether litter quality, litter decay, and enzyme activity differed between nativeEgeria densaand exoticHydrilla verticillata. The invasive
Acta Bot. Bras.. Publicado em: 2021-03
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2. Trapa natans pericarp extract ameliorates hyperglycemia and hyperlipidemia in type 2 diabetic mice
Abstract The pericarp of Trapa natans L., an annual aquatic floating herb belonging to Lythraceae family, is used as a folk medicine in China. In this study, extracts of Trapa natans pericarp were tested both in vitro and in vivo through a high-fat diet with a single medium dosage streptozotocin injection induced type 2 diabetic mice. Different solvent extra
Rev. bras. farmacogn.. Publicado em: 09/12/2019
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3. Determination of the potential of Pistia stratiotes L. in removing nickel from the environment by utilizing its rhizofiltration capacity
Abstract: The aim of this study is to explain the biological response and rhizofiltration capacity of Pistia stratiotes, which is an aquatic macrophyte, in alleviating heavy metal stress. In our study, Pistia species were exposed to Nickel (Ni) at different concentrations over seven days. The potential of the aquatic macrophytes in accumulating heavy metals
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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4. Low dissolved oxygen levels increase stress in piava (Megaleporinus obtusidens): iono-regulatory, metabolic and oxidative responses
Abstract: The aquatic environment presents daily and/or seasonal variations in dissolved oxygen (DO) levels. Piava faces different DO levels in the water due to its distributional characteristics. The goal of this study was to describe the effects of low DO levels on plasma ion, biochemical and oxidative variables in piava juveniles. Fish were exposed to dif
An. Acad. Bras. Ciênc.. Publicado em: 19/08/2019
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5. Microalgae: Cultivation Aspects and Bioactive Compounds
Abstract Microalgae are aquatic unicellular microorganisms that can be found both in freshwater and marine systems; are capable of photosynthesis; and can grow as individual cells or associated in chains or small colonies. Microalgae cultivation has gained large momentum among researchers in the past decades due to their ability to produce value metabolites,
Braz. arch. biol. technol.. Publicado em: 13/06/2019
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6. Ecophysiology, genotoxicity, histopathology, and gene responses of naphthalene injected Colossoma macropomum (Cuvier, 1818) exposed to hypoxia
Abstract The present study aimed to evaluate the biological responses of Colossoma macropomum to naphthalene injection and subsequent hypoxia exposure, emphasizing the expression of the tumor suppressor gene tp53. Tambaquis were intraperitoneally injected with naphthalene (50 mg/kg) and, after 96 hours, the fish were transferred to respirometry chambers and,
Genet. Mol. Biol.. Publicado em: 13/06/2019
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7. BONE TISSUE BEHAVIOR OF RATS WITH EXPERIMENTAL PERIODONTITIS SUBJECTED TO PHYSICAL EXERCISE
RESUMO Introdução: É possível que a atividade física proteja o periodonto por atenuar a resposta inflamatória excessiva do indivíduo. Há algumas evidências em estudos longitudinais e um estudo prospectivo que demonstram que adultos fisicamente ativos têm tido diminuição do risco de periodontite. Até o momento, nenhum estudo explorou conjuntamen
Rev Bras Med Esporte. Publicado em: 2019-04
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8. Potentially toxic metals in lotic systems with aptitude for aquaculture at the watershed Mantaro River, Peru
Resumo O objetivo do estudo foi analisar as concentrações de Cu, Zn, Fe, Pb e As em rios de águas com aptidão para a aquicultura na bacia do rio Mantaro utilizando métodos estatísticos multivariados, no período 2011-2013. A determinação do total de metais pesados em água coletada durante dois períodos climáticos contrastantes foi realizada por es
Rev. Ambient. Água. Publicado em: 11/02/2019
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9. Molluscicidal effect of Euphorbia umbellata (Pax) Bruyns latex on Biomphalaria glabrata, Schistosoma mansoni host snail
ABSTRACT Euphorbia umbellata (Pax) Bruyns is an easily cultivated shrub, with occurrence in the tropical regions of the American and African continents. Chemical studies have revealed that the latex of this plant is rich in terpene compounds, which are highly toxic to snails Biomphalaria glabrata (Basommatophora: Planorbidae). The aim of this study was to ev
Rev. Inst. Med. trop. S. Paulo. Publicado em: 21/12/2017
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10. Aquatic vascular plants as handicraft: a case study in southern Brazil
ABSTRACT This study aimed to evaluate knowledge about and the usage and importance of aquatic vascular plants (AVPs) in the production of handicrafts by communities on the north coast of the state of Rio Grande do Sul in southern Brazil. The snowball technique was employed to locate people who use and have knowledge regarding the use of AVPs for handicrafts.
Acta Bot. Bras.. Publicado em: 06/11/2017
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11. Role of glutathione in tolerance to arsenite in Salvinia molesta, an aquatic fern
ABSTRACT In many plant species, tolerance to toxic metals is highly dependent on glutathione, an essential metabolite for cellular detoxification. We evaluated the responses of glutathione metabolism to arsenite (AsIII) in Salvinia molesta, an aquatic fern that has unexplored phytoremediation potential. Plants were exposed to different AsIII concentrations i
Acta Bot. Bras.. Publicado em: 21/09/2017
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12. Use of combined method, accelerometer and international physical activity questionnaire, to determinate occurence of physical inactivity in adults
Abstract Aim Evaluate and compare the proportion of PI and associated factors by IPAQ questionnaire, triaxial accelerometry and the combination of both. Adults aged ( 18 years were enrolled (n = 250). Methods We considered PI as < 600 MET-min/wk in the IPAQ total score, < 150 min/wk of moderate-to-vigorous physical activity in 7 days accelerometry, and the
Motriz: rev. educ. fis.. Publicado em: 22/06/2017