Aluminium Toxicity
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Tolerance of Eucalyptus and Pinus seedlings to exchangeable Aluminium
ABSTRACT: Tolerance to acid soil is an important trait of Eucalyptus and Pinus species introduced into commercial forestry plantations in tropical ecosystems. The objective of this study was to evaluate the effect of the exchangeable Al on growth of the seedlings of two species and one hybrid of Eucalyptus and two species of Pinus. We also wanted to identify
Sci. agric. (Piracicaba, Braz.). Publicado em: 30/05/2019
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2. Efeitos do alumínio em pimenteiras do reino (piper nigrum, L.) cultivadas em solução nutritiva.
1995
Scientra Agricola. Publicado em: 2011
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3. Resposta do feijoeiro cultivado em solucao nutritiva a niveis de calcio e magnesio na presenca de aluminio.
Realizou-se experimento em casa de vegetacao, com o objetivo de avaliar o grau de acumulacao de materia seca e de nutrientes na parte aerea nas raizes de plantas de feijao (Phaseolus vulgaris L.) com o aumento de concentracao de Ca e Mg em solucao nutritiva contendo AL. Utilizou-se um fatorial incompleto com quatro niveis de Mg e cinco de Ca, na presenca de
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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4. Ferritin gene expression and antioxidant response of two Coffea arabica cultivars exposed to iron and aluminium / Expressão de genes da ferritina e resposta antioxidante em duas cultivares de Coffea arabica expostas a ferro e aluminio
Ferritin is a protein capable to store iron (Fe) atoms in a nontoxic form, controlling the level of this metal in the cells. In humans, ferritin is able to accommodate aluminium (Al) atoms, avoiding its toxicity. Considering that Coffea arabica plants are able to grow well in acidic soils with high Al and suspension cells treated with this same metal showed
Publicado em: 2009
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5. Relações entre a mineralogia, fertilidade, acidez e macrofauna em latossolos do cerrado sob pastagem
The Cerrado region occupies approximately 24% of Brazilian territory, making it the second biggest biome in South América, exceeded only by the Amazon Rainforest. The majority of the soils of the region were described as being acid, with a low capacity for cation exchange and high saturation by aluminium. Pastures cover 117 million hectares, of which 54 mil
Publicado em: 2008
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6. Toll-like receptor 4 (TLR4) na modulação da imunidade do tipo 2. / Toll-like receptor 4 (TLR4) and modulation of Th2 immunity.
Epidemiological and experimental data suggest that bacterial lipopolysaccharides (LPS) can either protect from or exacerbate allergic asthma. LPS triggers immune responses through Toll-like receptor (TLR) 4 that in turn activates two major signaling pathways via either MyD88 or TRIF adaptor proteins. LPS is a pro-Th1 adjuvant while aluminum hydroxide (Alum)
Publicado em: 2008
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7. Morphologic and molecular characterization in rice mutant (Oryza sativa L.) to aluminium toxicity tolerance / Caracterização morfológica e molecular em mutantes de arroz (Oryza sativa L.) quanto à tolerância a toxidez por alumínio
Fatores químicos do solo limitam o crescimento da raiz em solos ácidos, diminuindo a produção do cultivo. A toxidez por alumínio é considerada um dos mais importantes problemas de toxicidade de metais em solos ácidos com pH≤5 por representar um fator limitante do crescimento para as plantas. O presente trabalho teve como objetivo caracterizar mo
Publicado em: 2005
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8. Obtenção de filmes passivantes de molibdato de amonio e nitrato de cerio para ligas de zinco eletrodepositadas / The attainment of passivating films of ammonium molybdate and cerium nitrate for alloys of zinc electrodeposits
The electroplated zinc alloy coatings present better corrosion resistance than pure zinc, but they need a posterior passive treatment aiming the reduction of the formation of white corrosion products. Chromate conversion process is the process that, until now, presents the best results as passive treatment for zinc alloy coatings, although it presents high t
Publicado em: 2005
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9. Síntese e caracterização de substâncias semelhantes aos ácidos húmicos de carvão de eucalipto, e sua interação com diclorofenol, cálcio, manganês e alumínio / Synthesis and characterization of humic acid-like substances from eucalypt charcoal, and its interaction with diclorofenol, calcium, manganese and aluminium
A wide range of commercial products containing humic substances have been applied successfully in agricultural and environmental remediation systems. Regarding their beneficial remediation characteristics, there is a high potential to adsorb heavy metals and organic pollutants, thus reducing their bioavailability. Industrially, they are extracted from non-re
Publicado em: 2005
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10. Avaliação e analise genetica da resposta de milho ao aluminio
Four alumínum tolerant and four aluminum sensitive maize inbred lines, previously selected in nutrient solution, were used as testers for the development of a sand culture technique , to screen Al tolerant genotypes. The method was adjusted through the study of seedling root growth in plastic pots with river sand irrigated with solution of 0 (Zero), 15, 30,
Publicado em: 1979
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11. Chronic Toxicity of Aluminium in Rats and Mice and its Effects on Phosphorous Metabolism
In mice the oral LD50 values of aluminium chloride and aluminium sulphate were 0·77 ± 0·12 and 0·98 ± 0·09 g. Al/kg. (± S.E.) respectively.
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12. Pulmonary disease from exposure to an artificial aluminium silicate: further observations.
A cross sectional analysis of the relation between exposure to an artificial aluminium silicate (alunite residue) and pulmonary function changes has been made in 32 subjects, 17 of whom had been previously reported and in whom there was suggestive evidence of a dose response relation between gas transfer and total silicate exposure. Longitudinal data were al