Lead tolerance during germination and early growth of the Brazilian peppertree and the morpho-physiological modifications
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista de Ciências Agrárias (Belém. Online) |
Texto Completo: | https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1430 |
Resumo: | Woody plants are important for phytoremediation systems, and few species of lead hyperaccumulators are known. We evaluated the lead (Pb) tolerance of Schinus molle L. plants and the resulting anatomical and physiological modifications during germination and early growth. Two experiments were conducted to evaluate the response of S. molle seeds and plants to exposure to five concentrations of Pb(NO3)2 (0.0, 0.5, 1.0, 2.0, and 5.0 mM). The seed germination and seedling growth were unaffected, and the accumulation of Pb was higher in the roots than in the shoots. The root and leaf anatomy was significantly modified, but the internal structure exhibited no evidence of toxicity. S. molle accumulated Pb to levels close to those of metal-tolerant plants, although the Pb translocation decreased proportionately as the Pb concentration of the solution increased. Thus, S. molle accumulated Pb to concentrations above toxic levels and showed only favorable modifications to the anatomical structure and growth, suggesting this species is Pb tolerant and has the potential for use in phytoremediation systems. |
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Revista de Ciências Agrárias (Belém. Online) |
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Lead tolerance during germination and early growth of the Brazilian peppertree and the morpho-physiological modifications Woody plants are important for phytoremediation systems, and few species of lead hyperaccumulators are known. We evaluated the lead (Pb) tolerance of Schinus molle L. plants and the resulting anatomical and physiological modifications during germination and early growth. Two experiments were conducted to evaluate the response of S. molle seeds and plants to exposure to five concentrations of Pb(NO3)2 (0.0, 0.5, 1.0, 2.0, and 5.0 mM). The seed germination and seedling growth were unaffected, and the accumulation of Pb was higher in the roots than in the shoots. The root and leaf anatomy was significantly modified, but the internal structure exhibited no evidence of toxicity. S. molle accumulated Pb to levels close to those of metal-tolerant plants, although the Pb translocation decreased proportionately as the Pb concentration of the solution increased. Thus, S. molle accumulated Pb to concentrations above toxic levels and showed only favorable modifications to the anatomical structure and growth, suggesting this species is Pb tolerant and has the potential for use in phytoremediation systems.Universidade Federal Rural da Amazônia/UFRA2014-02-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/1430Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 56 No Suple (2013): RCA; 72-79Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 56 n. Suple (2013): RCA; 72-792177-87601517-591Xreponame:Revista de Ciências Agrárias (Belém. Online)instname:Universidade Federal Rural da Amazônia (UFRA)instacron:UFRAenghttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/1430/454Pereira, Marcio PauloPereira, Fabricio JoséCorrêa, Felipe Fogarolide Oliveira, Cynthiade Castro, Evaristo MauroBarbosa, Sandroinfo:eu-repo/semantics/openAccess2018-12-18T18:48:38Zoai:ojs.www.periodicos.ufra.edu.br:article/1430Revistahttps://ajaes.ufra.edu.br/index.php/ajaes/PUBhttps://ajaes.ufra.edu.br/index.php/ajaes/oaiallan.lobato@ufra.edu.br || ajaes.suporte@gmail.com2177-87601517-591Xopendoar:2018-12-18T18:48:38Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA)false |
dc.title.none.fl_str_mv |
Lead tolerance during germination and early growth of the Brazilian peppertree and the morpho-physiological modifications |
title |
Lead tolerance during germination and early growth of the Brazilian peppertree and the morpho-physiological modifications |
spellingShingle |
Lead tolerance during germination and early growth of the Brazilian peppertree and the morpho-physiological modifications Pereira, Marcio Paulo |
title_short |
Lead tolerance during germination and early growth of the Brazilian peppertree and the morpho-physiological modifications |
title_full |
Lead tolerance during germination and early growth of the Brazilian peppertree and the morpho-physiological modifications |
title_fullStr |
Lead tolerance during germination and early growth of the Brazilian peppertree and the morpho-physiological modifications |
title_full_unstemmed |
Lead tolerance during germination and early growth of the Brazilian peppertree and the morpho-physiological modifications |
title_sort |
Lead tolerance during germination and early growth of the Brazilian peppertree and the morpho-physiological modifications |
author |
Pereira, Marcio Paulo |
author_facet |
Pereira, Marcio Paulo Pereira, Fabricio José Corrêa, Felipe Fogaroli de Oliveira, Cynthia de Castro, Evaristo Mauro Barbosa, Sandro |
author_role |
author |
author2 |
Pereira, Fabricio José Corrêa, Felipe Fogaroli de Oliveira, Cynthia de Castro, Evaristo Mauro Barbosa, Sandro |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Pereira, Marcio Paulo Pereira, Fabricio José Corrêa, Felipe Fogaroli de Oliveira, Cynthia de Castro, Evaristo Mauro Barbosa, Sandro |
description |
Woody plants are important for phytoremediation systems, and few species of lead hyperaccumulators are known. We evaluated the lead (Pb) tolerance of Schinus molle L. plants and the resulting anatomical and physiological modifications during germination and early growth. Two experiments were conducted to evaluate the response of S. molle seeds and plants to exposure to five concentrations of Pb(NO3)2 (0.0, 0.5, 1.0, 2.0, and 5.0 mM). The seed germination and seedling growth were unaffected, and the accumulation of Pb was higher in the roots than in the shoots. The root and leaf anatomy was significantly modified, but the internal structure exhibited no evidence of toxicity. S. molle accumulated Pb to levels close to those of metal-tolerant plants, although the Pb translocation decreased proportionately as the Pb concentration of the solution increased. Thus, S. molle accumulated Pb to concentrations above toxic levels and showed only favorable modifications to the anatomical structure and growth, suggesting this species is Pb tolerant and has the potential for use in phytoremediation systems. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-02-25 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1430 |
url |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1430 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1430/454 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural da Amazônia/UFRA |
publisher.none.fl_str_mv |
Universidade Federal Rural da Amazônia/UFRA |
dc.source.none.fl_str_mv |
Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 56 No Suple (2013): RCA; 72-79 Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 56 n. Suple (2013): RCA; 72-79 2177-8760 1517-591X reponame:Revista de Ciências Agrárias (Belém. Online) instname:Universidade Federal Rural da Amazônia (UFRA) instacron:UFRA |
instname_str |
Universidade Federal Rural da Amazônia (UFRA) |
instacron_str |
UFRA |
institution |
UFRA |
reponame_str |
Revista de Ciências Agrárias (Belém. Online) |
collection |
Revista de Ciências Agrárias (Belém. Online) |
repository.name.fl_str_mv |
Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA) |
repository.mail.fl_str_mv |
allan.lobato@ufra.edu.br || ajaes.suporte@gmail.com |
_version_ |
1797231627600920576 |