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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
06/08/1997 |
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Data da última atualização: |
09/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALENCAR, M. M. de; TREMATORE, R. L.; BARBOSA, P. F.; ALMEIDA, M. A. DE; OLIVEIRA, J. DE A. L. |
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Afiliação: |
MAURICIO MELLO DE ALENCAR, CPPSE; RENATA LIMA TREMATORE, UFSCAR; PEDRO FRANKLIN BARBOSA, CPPSE; MANOEL ARAÚJO DE ALMEIDA, AGROPECUÁRIA SILVEIRA; JOSÉ DE ANCHIETA LEITE OLIVEIRA, UNOESTE. |
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Título: |
Desempenho de bezerros filhos de touros das raças Nelore e Canchim e cruzados (F1) Charolês x Nelore e Piemontês x Nelore. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, Viçosa, v.26, n.3, p.461-466, maio/jun. 1997. |
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ISSN: |
0100-4859 |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho foi comparar os pesos ao nascimento (PN) e a desmama (PD) e o ganho de peso do nascimento a desmama, de bezerros filhos de vacas da raça Nelore com touros da raça Nelore e 5/8 Charolês + 3/8 Zebu (Canchim). |
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Palavras-Chave: |
Características de crescimento; Crossbreeding. |
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Thesagro: |
Cruzamento; Gado Charolês; Gado de Corte; Gado Piemontês; Touro. |
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Thesaurus Nal: |
beef cattle; bulls; growth traits. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPPSE/11746/1/PROCIMMA1997.00097.pdf
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Marc: |
LEADER 01152naa a2200301 a 4500
001 1043781
005 2021-09-09
008 1997 bl uuuu u00u1 u #d
022 $a0100-4859
100 1 $aALENCAR, M. M. de
245 $aDesempenho de bezerros filhos de touros das raças Nelore e Canchim e cruzados (F1) Charolês x Nelore e Piemontês x Nelore.$h[electronic resource]
260 $c1997
520 $aO objetivo deste trabalho foi comparar os pesos ao nascimento (PN) e a desmama (PD) e o ganho de peso do nascimento a desmama, de bezerros filhos de vacas da raça Nelore com touros da raça Nelore e 5/8 Charolês + 3/8 Zebu (Canchim).
650 $abeef cattle
650 $abulls
650 $agrowth traits
650 $aCruzamento
650 $aGado Charolês
650 $aGado de Corte
650 $aGado Piemontês
650 $aTouro
653 $aCaracterísticas de crescimento
653 $aCrossbreeding
700 1 $aTREMATORE, R. L.
700 1 $aBARBOSA, P. F.
700 1 $aALMEIDA, M. A. DE
700 1 $aOLIVEIRA, J. DE A. L.
773 $tRevista Brasileira de Zootecnia, Viçosa$gv.26, n.3, p.461-466, maio/jun. 1997.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
26/09/2018 |
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Data da última atualização: |
26/09/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MAGALHAES, J. V. de; PIÑEROS, M. A.; MACIEL, L. S.; KOCHIAN, L. V. |
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Afiliação: |
JURANDIR VIEIRA DE MAGALHAES, CNPMS; Miguel A. Piñeros, Cornell University; Laiane S. Maciel, Universidade Federal de Minas Gerais; Leon V. Kochian, University of Saskatchewan. |
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Título: |
Emerging pleiotropic mechanisms underlying aluminum resistance and phosphorus acquisition on acidic soils. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Frontiers in Plant Science, v. 9. p. 1-12, 2018. |
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DOI: |
10.3389/fpls.2018.01420 |
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Idioma: |
Inglês |
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Notas: |
Article 1420. |
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Conteúdo: |
Aluminum (Al) toxicity on acidic soils significantly damages plant roots and inhibits root growth. Hence, crops intoxicated by Al become more sensitive to drought stress and mineral nutrient deficiencies, particularly phosphorus (P) deficiency, which is highly unavailable on tropical soils. Advances in our understanding of the physiological and genetic mechanisms that govern plant Al resistance have led to the identification of Al resistance genes, both in model systems and in crop species. It has long been known that Al resistance has a beneficial effect on crop adaptation to acidic soils. This positive effect happens because the root systems of Al resistant plants show better development in the presence of soil ionic Al3C and are, consequently, more efficient in absorbing sub-soil water and mineral nutrients. This effect of Al resistance on crop production, by itself, warrants intensified efforts to develop and implement, on a breeding scale, modern selection strategies to profit from the knowledge of the molecular determinants of plant Al resistance. Recent studies now suggest that Al resistance can exert pleiotropic effects on P acquisition, potentially expanding the role of Al resistance on crop adaptation to acidic soils. This appears to occur via both organic acid (OA)- and non-OA transporters governing a joint, iron-dependent interplay between Al resistance and enhanced P uptake, via changes in root system architecture. Current research suggests this interplay to be part of a P stress response, suggesting that this mechanism could have evolved in crop species to improve adaptation to acidic soils. Should this pleiotropism prove functional in crop species grown on acidic soils, molecular breeding based on Al resistance genes may have a much broader impact on crop performance than previously anticipated. To explore this possibility, here we review the components of this putative effect of Al resistance genes on P stress responses and P nutrition to provide the foundation necessary to discuss the recent evidence suggesting pleiotropy as a genetic linkage between Al resistance and P efficiency. We conclude by exploring what may be needed to enhance the utilization of Al resistance genes to improve crop production on acidic soils. MenosAluminum (Al) toxicity on acidic soils significantly damages plant roots and inhibits root growth. Hence, crops intoxicated by Al become more sensitive to drought stress and mineral nutrient deficiencies, particularly phosphorus (P) deficiency, which is highly unavailable on tropical soils. Advances in our understanding of the physiological and genetic mechanisms that govern plant Al resistance have led to the identification of Al resistance genes, both in model systems and in crop species. It has long been known that Al resistance has a beneficial effect on crop adaptation to acidic soils. This positive effect happens because the root systems of Al resistant plants show better development in the presence of soil ionic Al3C and are, consequently, more efficient in absorbing sub-soil water and mineral nutrients. This effect of Al resistance on crop production, by itself, warrants intensified efforts to develop and implement, on a breeding scale, modern selection strategies to profit from the knowledge of the molecular determinants of plant Al resistance. Recent studies now suggest that Al resistance can exert pleiotropic effects on P acquisition, potentially expanding the role of Al resistance on crop adaptation to acidic soils. This appears to occur via both organic acid (OA)- and non-OA transporters governing a joint, iron-dependent interplay between Al resistance and enhanced P uptake, via changes in root system architecture. Current research suggests this interplay to be ... Mostrar Tudo |
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Thesagro: |
Alumínio; Fósforo; Melhoramento Vegetal. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183518/1/Emerging-pleiotropic.pdf
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Marc: |
LEADER 02936naa a2200217 a 4500
001 2096304
005 2018-09-26
008 2018 bl uuuu u00u1 u #d
024 7 $a10.3389/fpls.2018.01420$2DOI
100 1 $aMAGALHAES, J. V. de
245 $aEmerging pleiotropic mechanisms underlying aluminum resistance and phosphorus acquisition on acidic soils.$h[electronic resource]
260 $c2018
500 $aArticle 1420.
520 $aAluminum (Al) toxicity on acidic soils significantly damages plant roots and inhibits root growth. Hence, crops intoxicated by Al become more sensitive to drought stress and mineral nutrient deficiencies, particularly phosphorus (P) deficiency, which is highly unavailable on tropical soils. Advances in our understanding of the physiological and genetic mechanisms that govern plant Al resistance have led to the identification of Al resistance genes, both in model systems and in crop species. It has long been known that Al resistance has a beneficial effect on crop adaptation to acidic soils. This positive effect happens because the root systems of Al resistant plants show better development in the presence of soil ionic Al3C and are, consequently, more efficient in absorbing sub-soil water and mineral nutrients. This effect of Al resistance on crop production, by itself, warrants intensified efforts to develop and implement, on a breeding scale, modern selection strategies to profit from the knowledge of the molecular determinants of plant Al resistance. Recent studies now suggest that Al resistance can exert pleiotropic effects on P acquisition, potentially expanding the role of Al resistance on crop adaptation to acidic soils. This appears to occur via both organic acid (OA)- and non-OA transporters governing a joint, iron-dependent interplay between Al resistance and enhanced P uptake, via changes in root system architecture. Current research suggests this interplay to be part of a P stress response, suggesting that this mechanism could have evolved in crop species to improve adaptation to acidic soils. Should this pleiotropism prove functional in crop species grown on acidic soils, molecular breeding based on Al resistance genes may have a much broader impact on crop performance than previously anticipated. To explore this possibility, here we review the components of this putative effect of Al resistance genes on P stress responses and P nutrition to provide the foundation necessary to discuss the recent evidence suggesting pleiotropy as a genetic linkage between Al resistance and P efficiency. We conclude by exploring what may be needed to enhance the utilization of Al resistance genes to improve crop production on acidic soils.
650 $aAlumínio
650 $aFósforo
650 $aMelhoramento Vegetal
700 1 $aPIÑEROS, M. A.
700 1 $aMACIEL, L. S.
700 1 $aKOCHIAN, L. V.
773 $tFrontiers in Plant Science$gv. 9. p. 1-12, 2018.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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