Timing of phosphate application affects arsenic phytoextraction by Pteris vittata L. of different ages

Detalhes bibliográficos
Autor(a) principal: Santos, Jorge Antônio Gonzaga
Data de Publicação: 2008
Outros Autores: Gonzaga, Maria Isidória Silva, Ma, Lena Q., Srivastava, M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/6116
Resumo: Acesso restrito: Texto completo. p. 306-311.
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spelling Santos, Jorge Antônio GonzagaGonzaga, Maria Isidória SilvaMa, Lena Q.Srivastava, M.Santos, Jorge Antônio GonzagaGonzaga, Maria Isidória SilvaMa, Lena Q.Srivastava, M.2012-06-13T17:34:14Z20080269-7491http://www.repositorio.ufba.br/ri/handle/ri/6116v. 154, n. 2Acesso restrito: Texto completo. p. 306-311.The effects of timing in phosphate application on plant growth and arsenic removal by arsenic hyperaccumulator Pteris vittata L. of different ages were evaluated. The hydroponic experiment consisted of three plant ages (A45d, A90d and A180d) and three P feeding regimens (P200þ0, P134þ66 and P66þ134) growing for 45 d in 0.2-strength HoaglandeArnon solution containing 145 mg L 1 As. While all plants received 200 mM P, P was added in two phases: during acclimation and after arsenic exposure. High initial P-supply (P200þ0) favored frond biomass production and plant P uptake, while split-P application (P134þ66 and P66þ134) favored plant root production. Single P addition favored arsenic accumulation in the roots while split-P addition increased frond arsenic accumulation. Young ferns (A45d) in treatment P134þ66 were the most efficient in arsenic removal, reducing arsenic concentration to below 10 mg L 1 in 35 d. The results indicated that the use of young ferns, coupled with feeding of low initial P or split-P application, increased the efficiency of arsenic removal by P. vittata. 2007 Elsevier Ltd. All rights reserved.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-06-13T17:34:14Z No. of bitstreams: 1 __ac.els-cdn.com_S026974...44ac6c7f88e486fa11e398f259d15.pdf: 677380 bytes, checksum: 6383677e2dd7e3135405448909111110 (MD5)Made available in DSpace on 2012-06-13T17:34:14Z (GMT). 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dc.title.pt_BR.fl_str_mv Timing of phosphate application affects arsenic phytoextraction by Pteris vittata L. of different ages
dc.title.alternative.pt_BR.fl_str_mv Environmental Pollution
title Timing of phosphate application affects arsenic phytoextraction by Pteris vittata L. of different ages
spellingShingle Timing of phosphate application affects arsenic phytoextraction by Pteris vittata L. of different ages
Santos, Jorge Antônio Gonzaga
Arsenic
Plant age
Phytoextraction
Hyperaccumulation
Hydroponic
title_short Timing of phosphate application affects arsenic phytoextraction by Pteris vittata L. of different ages
title_full Timing of phosphate application affects arsenic phytoextraction by Pteris vittata L. of different ages
title_fullStr Timing of phosphate application affects arsenic phytoextraction by Pteris vittata L. of different ages
title_full_unstemmed Timing of phosphate application affects arsenic phytoextraction by Pteris vittata L. of different ages
title_sort Timing of phosphate application affects arsenic phytoextraction by Pteris vittata L. of different ages
author Santos, Jorge Antônio Gonzaga
author_facet Santos, Jorge Antônio Gonzaga
Gonzaga, Maria Isidória Silva
Ma, Lena Q.
Srivastava, M.
author_role author
author2 Gonzaga, Maria Isidória Silva
Ma, Lena Q.
Srivastava, M.
author2_role author
author
author
dc.contributor.author.fl_str_mv Santos, Jorge Antônio Gonzaga
Gonzaga, Maria Isidória Silva
Ma, Lena Q.
Srivastava, M.
Santos, Jorge Antônio Gonzaga
Gonzaga, Maria Isidória Silva
Ma, Lena Q.
Srivastava, M.
dc.subject.por.fl_str_mv Arsenic
Plant age
Phytoextraction
Hyperaccumulation
Hydroponic
topic Arsenic
Plant age
Phytoextraction
Hyperaccumulation
Hydroponic
description Acesso restrito: Texto completo. p. 306-311.
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2012-06-13T17:34:14Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/6116
dc.identifier.issn.none.fl_str_mv 0269-7491
dc.identifier.number.pt_BR.fl_str_mv v. 154, n. 2
identifier_str_mv 0269-7491
v. 154, n. 2
url http://www.repositorio.ufba.br/ri/handle/ri/6116
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.envpol.2007.10.012
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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reponame_str Repositório Institucional da UFBA
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