Rhizosphere characteristics of two arsenic hyperaccumulating Pteris ferns

Detalhes bibliográficos
Autor(a) principal: Gonzaga, Maria Isidória Silva
Data de Publicação: 2009
Outros Autores: Ma, Lena Qying, Santos, Jorge Antônio Gonzaga, Matias, Maria Iraildes Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/6385
Resumo: Trabalho completo: acesso restrito, p.4711–4716
id UFBA-2_f4b93e18c2e7637da23ab75c75f46dfc
oai_identifier_str oai:repositorio.ufba.br:ri/6385
network_acronym_str UFBA-2
network_name_str Repositório Institucional da UFBA
repository_id_str 1932
spelling Gonzaga, Maria Isidória SilvaMa, Lena QyingSantos, Jorge Antônio GonzagaMatias, Maria Iraildes SilvaGonzaga, Maria Isidória SilvaMa, Lena QyingSantos, Jorge Antônio GonzagaMatias, Maria Iraildes Silva2012-07-09T20:08:00Z2009-08-010048-9697http://www.repositorio.ufba.br/ri/handle/ri/6385v. 407, n. 16Trabalho completo: acesso restrito, p.4711–4716Better understanding of the processes controlling arsenic bioavailability in the rhizosphere is important to enhance plant arsenic accumulation by hyperaccumulators. This greenhouse experiment was conducted to evaluate the chemical characteristics of the rhizosphere of two arsenic hyperaccumulators Pterisvittata and Pterisbiaurita. They were grown for 8 weeks in rhizopots containing arsenic-contaminated soils (153 and 266 mg kg− 1 arsenic). Bulk and rhizosphere soil samples were analyzed for water-soluble As (WS-As) and P (WS-P), pH, and dissolved organic carbon (DOC). Comparing the two plants, P.vittata was more tolerant to arsenic and more efficient in arsenic accumulation than P.biaurita, with the highest frond arsenic being 3222 and 2397 mg kg− 1. Arsenic-induced root exudates reduced soil pH (by 0.74–0.92 units) and increased DOC concentrations (2–3 times) in the rhizosphere, resulting in higher WS-P (2.6–3.8 times higher) compared to the bulk soil. Where there was no difference in WS-As between the rhizosphere and bulk soil in soil-153 for both plants, WS-As in the rhizosphere was 20–40% higher than those in bulk soil in soil-266, indicating that the rate of As-solubilization was more rapid than that of plant uptake. The ability to solubilize arsenic via root exudation in the rhizosphere and the ability to accumulate more P under arsenic stress may have contributed to the efficiency of hyperaccumulator plants in arsenic accumulation.Submitted by Bruna Lessa (lessbruna@gmail.com) on 2012-07-09T20:08:00Z No. of bitstreams: 1 (115)1-s2.0-S0048969709003702-main.pdf: 590672 bytes, checksum: 33f76925c4c0b859f1879106a7542838 (MD5)Made available in DSpace on 2012-07-09T20:08:00Z (GMT). No. of bitstreams: 1 (115)1-s2.0-S0048969709003702-main.pdf: 590672 bytes, checksum: 33f76925c4c0b859f1879106a7542838 (MD5) Previous issue date: 2009-08-01Elsevierhttp://dx.doi.org/10.1016/j.scitotenv.2009.04.037reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAArsenic bioavailabilitySoil remediationRhizosphere processesRhizosphere characteristics of two arsenic hyperaccumulating Pteris fernsScience of The Total Environmentinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL(115)1-s2.0-S0048969709003702-main.pdf(115)1-s2.0-S0048969709003702-main.pdfapplication/pdf590672https://repositorio.ufba.br/bitstream/ri/6385/1/%28115%291-s2.0-S0048969709003702-main.pdf33f76925c4c0b859f1879106a7542838MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/6385/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT(115)1-s2.0-S0048969709003702-main.pdf.txt(115)1-s2.0-S0048969709003702-main.pdf.txtExtracted texttext/plain33220https://repositorio.ufba.br/bitstream/ri/6385/3/%28115%291-s2.0-S0048969709003702-main.pdf.txte220f076bee27e1d170ef5e4c59b8f08MD53ri/63852022-07-05 14:03:20.731oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:20Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Rhizosphere characteristics of two arsenic hyperaccumulating Pteris ferns
dc.title.alternative.pt_BR.fl_str_mv Science of The Total Environment
title Rhizosphere characteristics of two arsenic hyperaccumulating Pteris ferns
spellingShingle Rhizosphere characteristics of two arsenic hyperaccumulating Pteris ferns
Gonzaga, Maria Isidória Silva
Arsenic bioavailability
Soil remediation
Rhizosphere processes
title_short Rhizosphere characteristics of two arsenic hyperaccumulating Pteris ferns
title_full Rhizosphere characteristics of two arsenic hyperaccumulating Pteris ferns
title_fullStr Rhizosphere characteristics of two arsenic hyperaccumulating Pteris ferns
title_full_unstemmed Rhizosphere characteristics of two arsenic hyperaccumulating Pteris ferns
title_sort Rhizosphere characteristics of two arsenic hyperaccumulating Pteris ferns
author Gonzaga, Maria Isidória Silva
author_facet Gonzaga, Maria Isidória Silva
Ma, Lena Qying
Santos, Jorge Antônio Gonzaga
Matias, Maria Iraildes Silva
author_role author
author2 Ma, Lena Qying
Santos, Jorge Antônio Gonzaga
Matias, Maria Iraildes Silva
author2_role author
author
author
dc.contributor.author.fl_str_mv Gonzaga, Maria Isidória Silva
Ma, Lena Qying
Santos, Jorge Antônio Gonzaga
Matias, Maria Iraildes Silva
Gonzaga, Maria Isidória Silva
Ma, Lena Qying
Santos, Jorge Antônio Gonzaga
Matias, Maria Iraildes Silva
dc.subject.por.fl_str_mv Arsenic bioavailability
Soil remediation
Rhizosphere processes
topic Arsenic bioavailability
Soil remediation
Rhizosphere processes
description Trabalho completo: acesso restrito, p.4711–4716
publishDate 2009
dc.date.issued.fl_str_mv 2009-08-01
dc.date.accessioned.fl_str_mv 2012-07-09T20:08:00Z
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/6385
dc.identifier.issn.none.fl_str_mv 0048-9697
dc.identifier.number.pt_BR.fl_str_mv v. 407, n. 16
identifier_str_mv 0048-9697
v. 407, n. 16
url http://www.repositorio.ufba.br/ri/handle/ri/6385
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.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.scitotenv.2009.04.037
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
bitstream.url.fl_str_mv https://repositorio.ufba.br/bitstream/ri/6385/1/%28115%291-s2.0-S0048969709003702-main.pdf
https://repositorio.ufba.br/bitstream/ri/6385/2/license.txt
https://repositorio.ufba.br/bitstream/ri/6385/3/%28115%291-s2.0-S0048969709003702-main.pdf.txt
bitstream.checksum.fl_str_mv 33f76925c4c0b859f1879106a7542838
1b89a9a0548218172d7c829f87a0eab9
e220f076bee27e1d170ef5e4c59b8f08
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)
repository.mail.fl_str_mv
_version_ 1808459403440947200

Registros relacionados