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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
05/02/2014 |
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Data da última atualização: |
17/05/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MATONYEI, T. K.; CHEPROT, R. K.; LIU, J.; PIÑEROS, M. A.; SHAFF, J. E.; GUDU, S.; WERE, B.; MAGALHAES, J. V.; KOCHIAN, L. V. |
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Afiliação: |
JURANDIR VIEIRA DE MAGALHAES, CNPMS. |
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Título: |
Physiological and molecular analysis of aluminum tolerance in selected Kenyan maize lines. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Plant and Soil, Dordrecht, v. 377, p. 357-367, 2014. |
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DOI: |
10.1007/s11104-013-1976-6 |
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Idioma: |
Inglês |
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Conteúdo: |
Aims Aluminum (Al) toxicity is an important limitation to maize production in many tropical and sub-tropical acid soil areas. The aim of this study was to survey the variation in Al tolerance in a panel of maize lines adapted for Kenya and look for novel sources of Al tolerance. Methods 112 Kenyan maize accessions were phenotyped for Al tolerance in solution culture. Several Al tolerance-related parameters including relative net root growth (RNRG), root apex Al accumulation, Al-activated root organic acid exudation, and expression of the maize Al tolerance gene, ZmMATE1, were used to classify Kenyan maize accessions. Results Based on RNRG, 42 %, 28 %, and 30 % of the lines were classified as highly tolerant, moderately tolerant and sensitive, respectively. Tolerant accessions accumulated less Al in their root apices compared to sensitive lines. The Kenyan maize line, CON 5, and the Brazilian standard for tolerance, Cateto, exhibited the greatest Al tolerance based on RNRG, but CON 5 had only about 50 % of ZmMATE1 gene expression relative to Cateto. CON 5 also had low root apex Al content and high citrate exudation, suggesting that it may employ a citrate transporter other than ZmMATE1. Conclusions We identified a very Al tolerant Kenyan maize line whose Al tolerance may be based in part on a novel tolerance gene. The maize lines identified in this study are useful germplasm for the development of varieties suitable for agriculture on acid soils in Kenya. |
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Palavras-Chave: |
Toxicidade. |
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Thesagro: |
Alumínio. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02199naa a2200253 a 4500
001 1978688
005 2017-05-17
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1007/s11104-013-1976-6$2DOI
100 1 $aMATONYEI, T. K.
245 $aPhysiological and molecular analysis of aluminum tolerance in selected Kenyan maize lines.$h[electronic resource]
260 $c2014
520 $aAims Aluminum (Al) toxicity is an important limitation to maize production in many tropical and sub-tropical acid soil areas. The aim of this study was to survey the variation in Al tolerance in a panel of maize lines adapted for Kenya and look for novel sources of Al tolerance. Methods 112 Kenyan maize accessions were phenotyped for Al tolerance in solution culture. Several Al tolerance-related parameters including relative net root growth (RNRG), root apex Al accumulation, Al-activated root organic acid exudation, and expression of the maize Al tolerance gene, ZmMATE1, were used to classify Kenyan maize accessions. Results Based on RNRG, 42 %, 28 %, and 30 % of the lines were classified as highly tolerant, moderately tolerant and sensitive, respectively. Tolerant accessions accumulated less Al in their root apices compared to sensitive lines. The Kenyan maize line, CON 5, and the Brazilian standard for tolerance, Cateto, exhibited the greatest Al tolerance based on RNRG, but CON 5 had only about 50 % of ZmMATE1 gene expression relative to Cateto. CON 5 also had low root apex Al content and high citrate exudation, suggesting that it may employ a citrate transporter other than ZmMATE1. Conclusions We identified a very Al tolerant Kenyan maize line whose Al tolerance may be based in part on a novel tolerance gene. The maize lines identified in this study are useful germplasm for the development of varieties suitable for agriculture on acid soils in Kenya.
650 $aAlumínio
653 $aToxicidade
700 1 $aCHEPROT, R. K.
700 1 $aLIU, J.
700 1 $aPIÑEROS, M. A.
700 1 $aSHAFF, J. E.
700 1 $aGUDU, S.
700 1 $aWERE, B.
700 1 $aMAGALHAES, J. V.
700 1 $aKOCHIAN, L. V.
773 $tPlant and Soil, Dordrecht$gv. 377, p. 357-367, 2014.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Cutter |
Registro |
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Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
04/10/1995 |
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Data da última atualização: |
11/12/2006 |
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Autoria: |
KIIHL, R. A. S.; MIRANDA, L. C.; KASTER, M.; YORINORI, J. T.; HARADA, A.; SUZUKI, S.; TERASAWA, F.; FREDERICO, M. A.; HIGASHI, W. I. |
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Afiliação: |
EMBRAPA-CNPSo. Londrina, PR. |
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Título: |
Avaliacao final de linhagens de soja para o Estado do Parana. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
In: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR). Resultados de pesquisa de soja 1988/89. Londrina, 1989. |
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Páginas: |
p.195-199. |
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Série: |
(EMBRAPA-CNPSo. Documentos, 43). |
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Idioma: |
Português |
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Palavras-Chave: |
Avaliacao; Brasil; Competicao; Evaluation; Line; Parana; Soybean. |
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Thesagro: |
Genética; Linhagem; Melhoramento; Pesquisa; Soja. |
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Thesaurus NAL: |
Brazil; genetics; plant breeding; research; screening. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01130naa a2200433 a 4500
001 1453315
005 2006-12-11
008 1989 bl uuuu u00u1 u #d
100 1 $aKIIHL, R. A. S.
245 $aAvaliacao final de linhagens de soja para o Estado do Parana.
260 $c1989
300 $ap.195-199.
490 $a(EMBRAPA-CNPSo. Documentos, 43).
650 $aBrazil
650 $agenetics
650 $aplant breeding
650 $aresearch
650 $ascreening
650 $aGenética
650 $aLinhagem
650 $aMelhoramento
650 $aPesquisa
650 $aSoja
653 $aAvaliacao
653 $aBrasil
653 $aCompeticao
653 $aEvaluation
653 $aLine
653 $aParana
653 $aSoybean
700 1 $aMIRANDA, L. C.
700 1 $aKASTER, M.
700 1 $aYORINORI, J. T.
700 1 $aHARADA, A.
700 1 $aSUZUKI, S.
700 1 $aTERASAWA, F.
700 1 $aFREDERICO, M. A.
700 1 $aHIGASHI, W. I.
773 $tIn: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR). Resultados de pesquisa de soja 1988/89. Londrina, 1989.
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