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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
06/02/2019 |
Data da última atualização: |
07/02/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MARQUES, D. M.; VERONEZE JÚNIOR, V.; SILVA, A. B. da; MANTOVANI, J. R.; MAGALHAES, P. C.; SOUZA, T. C. de. |
Afiliação: |
Daniele Maria Marques, Universidade Federal de Alfenas; Valdir Veroneze Júnior, Universidade Federal de Alfenas; Adriano Bortolotti da Silva, Universidade José do Rosário Vellano; José Ricardo Mantovani, Universidade José do Rosário Vellano; PAULO CESAR MAGALHAES, CNPMS; Thiago Corrêa de Souza, Universidade Federal de Alfenas. |
Título: |
Copper toxicity on photosynthetic responses and root morphology of Hymenaea courbaril L. (Caesalpinioideae). |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Water, Air and Soil Pollution, v. 229, n. 138, p. 1-14, 2018. |
DOI: |
10.1007/s11270-018-3769-2 |
Idioma: |
Inglês |
Conteúdo: |
Copper (Cu) is a micronutrient essential for plant development. However, in excess, it is toxic to plants and may cause various physiological and morphological changes. The study of the growth of plants exposed to excess Cu is important for the development of phytoremediation programs and for understanding the mechanisms involved in the tolerance of this metal. In this context, the objective of this research was to evaluate the effect of excess copper on photosynthetic responses and root morphology ofHymenaeacourbaril L. Biometric measurements, gas exchange, root morphology, and Cu content in tissues and indices (TI and TF) were assessed, involving metal content and biomass.Uptoaconcentrationof200mgkg−1,Cufavored growth, gas exchange, and root morphology of the plants under study. At a higher concentration (800 mg kg−1) in the soil, it affected plant growth and caused a decrease in photosynthetic rate. Biochemical limitations in photosynthesis were observed, as well as lower maximum net photosynthetic rate (Amax), respiration rate in the dark (Rd), light compensation point (LCP), light saturation point (LSP), and apparent quantum yield (α), when exposed toexcess Cu. Root length, surface area, mean diameter, root volume, dry biomass, andspecificrootlengthdecreasedwithhighCuconcentrationsinthe soil.Cuwasaccumulatedintheroots asa mechanism of tolerance to the excess of this metal in order to preserve the most metabolically active tissues presentintheleaves.Ataconcentrationof800mgkg−1, copper also caused inhibition of the root system. Plants ofH.courbarilshowedtolerancetoexcessCuinthesoil and can be indicated for the recovery of areas contaminated with this metal. MenosCopper (Cu) is a micronutrient essential for plant development. However, in excess, it is toxic to plants and may cause various physiological and morphological changes. The study of the growth of plants exposed to excess Cu is important for the development of phytoremediation programs and for understanding the mechanisms involved in the tolerance of this metal. In this context, the objective of this research was to evaluate the effect of excess copper on photosynthetic responses and root morphology ofHymenaeacourbaril L. Biometric measurements, gas exchange, root morphology, and Cu content in tissues and indices (TI and TF) were assessed, involving metal content and biomass.Uptoaconcentrationof200mgkg−1,Cufavored growth, gas exchange, and root morphology of the plants under study. At a higher concentration (800 mg kg−1) in the soil, it affected plant growth and caused a decrease in photosynthetic rate. Biochemical limitations in photosynthesis were observed, as well as lower maximum net photosynthetic rate (Amax), respiration rate in the dark (Rd), light compensation point (LCP), light saturation point (LSP), and apparent quantum yield (α), when exposed toexcess Cu. Root length, surface area, mean diameter, root volume, dry biomass, andspecificrootlengthdecreasedwithhighCuconcentrationsinthe soil.Cuwasaccumulatedintheroots asa mechanism of tolerance to the excess of this metal in order to preserve the most metabolically active tissues presentintheleaves.Atac... Mostrar Tudo |
Palavras-Chave: |
Toxicidade; Troca de gás. |
Thesagro: |
Cobre; Metal Pesado; Raiz. |
Thesaurus Nal: |
Phytoremediation. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/192182/1/Copper-toxicity.pdf
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Marc: |
LEADER 02504naa a2200265 a 4500 001 2105592 005 2019-02-07 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1007/s11270-018-3769-2$2DOI 100 1 $aMARQUES, D. M. 245 $aCopper toxicity on photosynthetic responses and root morphology of Hymenaea courbaril L. (Caesalpinioideae).$h[electronic resource] 260 $c2018 520 $aCopper (Cu) is a micronutrient essential for plant development. However, in excess, it is toxic to plants and may cause various physiological and morphological changes. The study of the growth of plants exposed to excess Cu is important for the development of phytoremediation programs and for understanding the mechanisms involved in the tolerance of this metal. In this context, the objective of this research was to evaluate the effect of excess copper on photosynthetic responses and root morphology ofHymenaeacourbaril L. Biometric measurements, gas exchange, root morphology, and Cu content in tissues and indices (TI and TF) were assessed, involving metal content and biomass.Uptoaconcentrationof200mgkg−1,Cufavored growth, gas exchange, and root morphology of the plants under study. At a higher concentration (800 mg kg−1) in the soil, it affected plant growth and caused a decrease in photosynthetic rate. Biochemical limitations in photosynthesis were observed, as well as lower maximum net photosynthetic rate (Amax), respiration rate in the dark (Rd), light compensation point (LCP), light saturation point (LSP), and apparent quantum yield (α), when exposed toexcess Cu. Root length, surface area, mean diameter, root volume, dry biomass, andspecificrootlengthdecreasedwithhighCuconcentrationsinthe soil.Cuwasaccumulatedintheroots asa mechanism of tolerance to the excess of this metal in order to preserve the most metabolically active tissues presentintheleaves.Ataconcentrationof800mgkg−1, copper also caused inhibition of the root system. Plants ofH.courbarilshowedtolerancetoexcessCuinthesoil and can be indicated for the recovery of areas contaminated with this metal. 650 $aPhytoremediation 650 $aCobre 650 $aMetal Pesado 650 $aRaiz 653 $aToxicidade 653 $aTroca de gás 700 1 $aVERONEZE JÚNIOR, V. 700 1 $aSILVA, A. B. da 700 1 $aMANTOVANI, J. R. 700 1 $aMAGALHAES, P. C. 700 1 $aSOUZA, T. C. de 773 $tWater, Air and Soil Pollution$gv. 229, n. 138, p. 1-14, 2018.
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Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
10/11/2011 |
Data da última atualização: |
10/11/2011 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
PASSOS, S. R.; CORREIA, M. E. F.; RUMJANEK, N. G.; XAVIER, G. R. |
Afiliação: |
SAMUEL R. PASSOS, UFRRJ; MARIA ELIZABETH FERNANDES CORREIA, CNPAB; NORMA GOUVEA RUMJANEK, CNPAB; GUSTAVO RIBEIRO XAVIER, CNPAB. |
Título: |
Produção de celulases e degradação de bagaço de cana-de-açúcar por microrganismos oriundos do trato intestinal de Trigoniulus corallinus (Diplopoda). |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 11., 2011, Seropédica. Mudanças climáticas, desastres naturais e prevenção de riscos: resumos... Seropédica: Embrapa Agrobiologia, 2011. |
Páginas: |
52 p; |
Idioma: |
Português |
Palavras-Chave: |
Cana-de-açúcar; Enzimas hidrolíticas; Microbiota; Trato intestinal. |
Thesagro: |
Bagaço; Biodegradação. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/46101/1/PRODUCAO-DE-CELULASES.pdf
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Marc: |
LEADER 00851nam a2200217 a 4500 001 1905611 005 2011-11-10 008 2011 bl uuuu u00u1 u #d 100 1 $aPASSOS, S. R. 245 $aProdução de celulases e degradação de bagaço de cana-de-açúcar por microrganismos oriundos do trato intestinal de Trigoniulus corallinus (Diplopoda).$h[electronic resource] 260 $aSEMANA CIENTÍFICA JOHANNA DÖBEREINER, 11., 2011, Seropédica. Mudanças climáticas, desastres naturais e prevenção de riscos: resumos... Seropédica: Embrapa Agrobiologia$c2011 300 $a52 p; 650 $aBagaço 650 $aBiodegradação 653 $aCana-de-açúcar 653 $aEnzimas hidrolíticas 653 $aMicrobiota 653 $aTrato intestinal 700 1 $aCORREIA, M. E. F. 700 1 $aRUMJANEK, N. G. 700 1 $aXAVIER, G. R.
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