Evolution of the root anatomy of 'Saracura' maize in successive selection cycles

Detalhes bibliográficos
Autor(a) principal: Pereira, Fabricio José
Data de Publicação: 2009
Outros Autores: Castro, Evaristo Mauro de, Souza, Thiago Corrêa de, Magalhães, Paulo César
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/1183
Resumo: This work aimed to verify the modifications in the root anatomical characteristics related to hypoxia, along 18 selection cycles of the maize (Zea mays) cultivar BRS 4154 Saracura, adapted to areas subject to flooding. Cultivars not tolerant to fooding, BR 107 and the simple hybrid BRS 1010, were used as controls. The different cultivars were subjected to intermittent soil waterlogging every two days for two months. The root samples were prepared and analyzed through light microscopy. Compared to the controls group and to early selection cycles, BRS 4154 had increased development of aerenchyma, decreased cortex thickness, decreased metaxylem diameter, decreased subepidermal layer, and increased epidermis and phloem thickness. The successive selection cycles improved 'Saracura' maize characteristics and its tolerance to flooding environments.
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spelling Evolution of the root anatomy of 'Saracura' maize in successive selection cyclesEvolução da anatomia radicular do milho 'Saracura' em ciclos de seleção sucessivosZea mays; aerenchyma; soil waterlogging; hypoxia; tolerance to floodingZea mays; aerênquima; alagamento do solo; hipoxia; tolerância a ambientes alagadosThis work aimed to verify the modifications in the root anatomical characteristics related to hypoxia, along 18 selection cycles of the maize (Zea mays) cultivar BRS 4154 Saracura, adapted to areas subject to flooding. Cultivars not tolerant to fooding, BR 107 and the simple hybrid BRS 1010, were used as controls. The different cultivars were subjected to intermittent soil waterlogging every two days for two months. The root samples were prepared and analyzed through light microscopy. Compared to the controls group and to early selection cycles, BRS 4154 had increased development of aerenchyma, decreased cortex thickness, decreased metaxylem diameter, decreased subepidermal layer, and increased epidermis and phloem thickness. The successive selection cycles improved 'Saracura' maize characteristics and its tolerance to flooding environments.Este trabalho teve como objetivo verificar as modificações nas características anatômicas radicularesrelacionadas à hipoxia, durante 18 ciclos de seleção da variedade de milho (Zea mays) BRS 4154 Saracura,adaptada a áreas sujeitas a alagamento. A variedade BR 107 e o híbrido simples BRS 1010, suscetíveis ao alagamento, foram utilizados como controle. As diferentes cultivares foram submetidas a alagamentos intermitentes, a cada dois dias, durante dois meses. As amostras radiculares foram preparadas e analisadas em microscopia óptica. Em relação ao grupo controle e aos ciclos anteriores de seleção, a BRS 4154 teve aumento na formação de aerênquima, diminuição do córtex, diminuição do diâmetro dos vasos, diminuição da camada subepidérmica, aumento na espessura do floema e epiderme. Os sucessivos ciclos de seleção melhoraram as características do milho 'Saracura' e sua tolerância a ambientes alagados.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraEmbrapa Milho e Sorgo, CAPES (bolsa de mestrado).Pereira, Fabricio JoséCastro, Evaristo Mauro deSouza, Thiago Corrêa deMagalhães, Paulo César2009-01-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/1183Pesquisa Agropecuaria Brasileira; v.43, n.12, dez. 2008; 1649-1656Pesquisa Agropecuária Brasileira; v.43, n.12, dez. 2008; 1649-16561678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/1183/5571https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1183/786https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1183/787https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1183/788https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1183/866https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1183/867info:eu-repo/semantics/openAccess2014-07-29T17:31:37Zoai:ojs.seer.sct.embrapa.br:article/1183Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-07-29T17:31:37Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Evolution of the root anatomy of 'Saracura' maize in successive selection cycles
Evolução da anatomia radicular do milho 'Saracura' em ciclos de seleção sucessivos
title Evolution of the root anatomy of 'Saracura' maize in successive selection cycles
spellingShingle Evolution of the root anatomy of 'Saracura' maize in successive selection cycles
Pereira, Fabricio José
Zea mays; aerenchyma; soil waterlogging; hypoxia; tolerance to flooding
Zea mays; aerênquima; alagamento do solo; hipoxia; tolerância a ambientes alagados
title_short Evolution of the root anatomy of 'Saracura' maize in successive selection cycles
title_full Evolution of the root anatomy of 'Saracura' maize in successive selection cycles
title_fullStr Evolution of the root anatomy of 'Saracura' maize in successive selection cycles
title_full_unstemmed Evolution of the root anatomy of 'Saracura' maize in successive selection cycles
title_sort Evolution of the root anatomy of 'Saracura' maize in successive selection cycles
author Pereira, Fabricio José
author_facet Pereira, Fabricio José
Castro, Evaristo Mauro de
Souza, Thiago Corrêa de
Magalhães, Paulo César
author_role author
author2 Castro, Evaristo Mauro de
Souza, Thiago Corrêa de
Magalhães, Paulo César
author2_role author
author
author
dc.contributor.none.fl_str_mv
Embrapa Milho e Sorgo, CAPES (bolsa de mestrado).
dc.contributor.author.fl_str_mv Pereira, Fabricio José
Castro, Evaristo Mauro de
Souza, Thiago Corrêa de
Magalhães, Paulo César
dc.subject.por.fl_str_mv Zea mays; aerenchyma; soil waterlogging; hypoxia; tolerance to flooding
Zea mays; aerênquima; alagamento do solo; hipoxia; tolerância a ambientes alagados
topic Zea mays; aerenchyma; soil waterlogging; hypoxia; tolerance to flooding
Zea mays; aerênquima; alagamento do solo; hipoxia; tolerância a ambientes alagados
description This work aimed to verify the modifications in the root anatomical characteristics related to hypoxia, along 18 selection cycles of the maize (Zea mays) cultivar BRS 4154 Saracura, adapted to areas subject to flooding. Cultivars not tolerant to fooding, BR 107 and the simple hybrid BRS 1010, were used as controls. The different cultivars were subjected to intermittent soil waterlogging every two days for two months. The root samples were prepared and analyzed through light microscopy. Compared to the controls group and to early selection cycles, BRS 4154 had increased development of aerenchyma, decreased cortex thickness, decreased metaxylem diameter, decreased subepidermal layer, and increased epidermis and phloem thickness. The successive selection cycles improved 'Saracura' maize characteristics and its tolerance to flooding environments.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-06
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/1183
url https://seer.sct.embrapa.br/index.php/pab/article/view/1183
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/1183/5571
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1183/786
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1183/787
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1183/788
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1183/866
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/1183/867
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.43, n.12, dez. 2008; 1649-1656
Pesquisa Agropecuária Brasileira; v.43, n.12, dez. 2008; 1649-1656
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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