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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
05/11/2019 |
Data da última atualização: |
24/01/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MARQUES, D. M.; SILVA, A. B. da; MANTOVANI, J. R.; MAGALHAES, P. C.; SOUZA, T. C. de. |
Afiliação: |
Universidade Federal de Lavras; UNIFENAS; UNIFENAS; PAULO CESAR MAGALHAES, CNPMS; UNIFAL. |
Título: |
Root morphology and leaf gas exchange in Peltophorum dubium(Spreng.)Taub. (Caesalpinioideae) exposed to copper-induced toxicity. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
South African Journal of Botany, v. 121, p. 186-192, 2019. |
DOI: |
10.1016/j.sajb.2018.11.007 |
Idioma: |
Inglês |
Conteúdo: |
Excess copper (Cu) in the soil causes physiological and morphological changes in plants. The objective of this research was to evaluate root morphology and photosynthetic responses in Peltophorum dubium plants exposed to excess Cu. Growth, leaf gas exchange, root morphology and bioaccumulated Cu in the different plant tissues were evaluated. Excess Cu reduced plant height and diameter, and altered root system morphology in P. dubium. Length, surface area, mean diameter and root volume also decreased with excess Cu treatment. The effect of excess Cu on roots was observed by the inhibited development of very fine roots. In general, accumulation of Cu occurred mainly in the root system, and this heavy metal in excess inhibited the growth of P. dubium. As a consequence of Cu toxicity, there was a reduction in root and shoot dry weight, as well as significant affects on photosynthesis (A and Amax) and transpiration (E) that were dependent on Cu concentration. |
Palavras-Chave: |
Fitorremediação; WinRhizo. |
Thesagro: |
Fotossíntese; Metal Pesado; Raiz; Volume. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/204247/1/Root-morphology.pdf
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Marc: |
LEADER 01742naa a2200253 a 4500 001 2113897 005 2020-01-24 008 2019 bl uuuu u00u1 u #d 024 7 $a10.1016/j.sajb.2018.11.007$2DOI 100 1 $aMARQUES, D. M. 245 $aRoot morphology and leaf gas exchange in Peltophorum dubium(Spreng.)Taub. (Caesalpinioideae) exposed to copper-induced toxicity.$h[electronic resource] 260 $c2019 520 $aExcess copper (Cu) in the soil causes physiological and morphological changes in plants. The objective of this research was to evaluate root morphology and photosynthetic responses in Peltophorum dubium plants exposed to excess Cu. Growth, leaf gas exchange, root morphology and bioaccumulated Cu in the different plant tissues were evaluated. Excess Cu reduced plant height and diameter, and altered root system morphology in P. dubium. Length, surface area, mean diameter and root volume also decreased with excess Cu treatment. The effect of excess Cu on roots was observed by the inhibited development of very fine roots. In general, accumulation of Cu occurred mainly in the root system, and this heavy metal in excess inhibited the growth of P. dubium. As a consequence of Cu toxicity, there was a reduction in root and shoot dry weight, as well as significant affects on photosynthesis (A and Amax) and transpiration (E) that were dependent on Cu concentration. 650 $aFotossíntese 650 $aMetal Pesado 650 $aRaiz 650 $aVolume 653 $aFitorremediação 653 $aWinRhizo 700 1 $aSILVA, A. B. da 700 1 $aMANTOVANI, J. R. 700 1 $aMAGALHAES, P. C. 700 1 $aSOUZA, T. C. de 773 $tSouth African Journal of Botany$gv. 121, p. 186-192, 2019.
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