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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
03/10/2007 |
Data da última atualização: |
25/05/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MAGALHAES, J. V. de; LIU, J.; GUIMARAES, C. T.; LANA, U. G. de P.; ALVES, V. M. C.; WANG, Y-H.; SCHAFFERT, R. E.; HOEKENGA, O. A.; PINEROS, M. A.; SHAFF, J. E.; KLEIN, P. E.; CARNEIRO, N. P.; COELHO, C. M.; TRICK, H. N.; KOCHIAN, L. V. |
Afiliação: |
JURANDIR VIEIRA DE MAGALHAES, CNPMS; Jiping Liu, Cornell University; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; UBIRACI GOMES DE PAULA LANA, CNPMS; VERA MARIA CARVALHO ALVES, CNPMS; Yi-Hong Wang, Cornell University; ROBERT EUGENE SCHAFFERT, CNPMS; Owen A. Hoekenga, Cornell University; Miguel A. Piñros, Cornell University; Jon E. Shaff, Cornell University; Patricia E. Klein, Texas A@M University; NEWTON PORTILHO CARNEIRO, CNPMS; Cintia M. Coelho; Harold N Trick, Kansas State University; Leon V. Kochian, Cornell University. |
Título: |
A gene in the multidrug and toxic compound extrusion (MATE) family confers aluminum tolerance in sorghum. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Nature Genetics, New York, v. 39, n. 9, p. 1156-1161, 2007. |
Idioma: |
Inglês |
Conteúdo: |
Crop yields are significantly reduced by aluminum toxicity on highly acidic soils, which comprise up to 50% of the world's arable land1-3. Candidate aluminum tolerance proteins include organic acid efflux transporters, with the organic acids forming non-toxic complexes with rhizosphere aluminum1,4. In this study, we used positional cloning to identify the gene encoding a member of the multidrug and toxic compound extrusion (MATE) family, an aluminum-activated citrate transporter, as responsible for the major sorghum (Sorghum bicolor) aluminum tolerance locus, AltsB5 .Polymorphisms in regulatory regions of AltSB are likely to contribute to large allelic effects, acting to increase AltSB expression in the root apex of tolerant genotypes. Furthermore, aluminum-inducible AltSB expression is associated with induction of aluminum tolerance via enhanced root citrate exudation. These findings will allow us to identify superior AltSB haplotypes that can be incorporated via molecular breeding and biotechnology into acid soil breeding programs, thus helping to increase crop yields in developing countries where acidic soils predominate. |
Thesagro: |
Genética. |
Categoria do assunto: |
S Ciências Biológicas |
Marc: |
LEADER 02011naa a2200301 a 4500 001 1490784 005 2018-05-25 008 2007 bl uuuu u00u1 u #d 100 1 $aMAGALHAES, J. V. de 245 $aA gene in the multidrug and toxic compound extrusion (MATE) family confers aluminum tolerance in sorghum.$h[electronic resource] 260 $c2007 520 $aCrop yields are significantly reduced by aluminum toxicity on highly acidic soils, which comprise up to 50% of the world's arable land1-3. Candidate aluminum tolerance proteins include organic acid efflux transporters, with the organic acids forming non-toxic complexes with rhizosphere aluminum1,4. In this study, we used positional cloning to identify the gene encoding a member of the multidrug and toxic compound extrusion (MATE) family, an aluminum-activated citrate transporter, as responsible for the major sorghum (Sorghum bicolor) aluminum tolerance locus, AltsB5 .Polymorphisms in regulatory regions of AltSB are likely to contribute to large allelic effects, acting to increase AltSB expression in the root apex of tolerant genotypes. Furthermore, aluminum-inducible AltSB expression is associated with induction of aluminum tolerance via enhanced root citrate exudation. These findings will allow us to identify superior AltSB haplotypes that can be incorporated via molecular breeding and biotechnology into acid soil breeding programs, thus helping to increase crop yields in developing countries where acidic soils predominate. 650 $aGenética 700 1 $aLIU, J. 700 1 $aGUIMARAES, C. T. 700 1 $aLANA, U. G. de P. 700 1 $aALVES, V. M. C. 700 1 $aWANG, Y-H. 700 1 $aSCHAFFERT, R. E. 700 1 $aHOEKENGA, O. A. 700 1 $aPINEROS, M. A. 700 1 $aSHAFF, J. E. 700 1 $aKLEIN, P. E. 700 1 $aCARNEIRO, N. P. 700 1 $aCOELHO, C. M. 700 1 $aTRICK, H. N. 700 1 $aKOCHIAN, L. V. 773 $tNature Genetics, New York$gv. 39, n. 9, p. 1156-1161, 2007.
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Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca(s): |
Embrapa Territorial. |
Data corrente: |
14/08/2017 |
Data da última atualização: |
14/08/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
TEIXEIRA, A. H. de C.; LEIVAS, J. F.; HERNANDEZ, F. B. T.; FRANCO, R. A. M. |
Afiliação: |
ANTONIO HERIBERTO DE C TEIXEIRA, CPATSA; JANICE FREITAS LEIVAS, CNPM; FERNANDO BRAZ TANGERINO HERNANDEZ, UNESP; RENATO ALBERTO MOMESSO FRANCO, UNESP. |
Título: |
Large-scale radiation and energy balances with Landsat 8 images and agrometeorological data in the Brazilian semiarid region. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Journal of Applied Remote Sensing, v. 11, n. 1, jan./mar. 2017. |
Páginas: |
p. 016030-1-016030-15. |
DOI: |
10.1117/1.JRS.11.016030. |
Idioma: |
Inglês |
Conteúdo: |
Aiming to subsidize the rational water resources management, four Landsat 8 (L8) images along different conditions of the year 2014 were used for modeling the radiation and energy balances in the mixed agroecosystems inside a Brazilian reference semiarid area. The SAFER algorithm was applied to calculate the latent heat flux (λE); net radiation (Rn) was acquired by the Slob equation; ground heat flux (G) was considered a fraction of Rn; and the sensible heat flux (H) was retrieved by residue in the energy balance equation. For classifying the vegetation, the surface resistance algorithm (SUREAL) was used to estimate the surface resistance to the water fluxes (rs) with threshold values for rs. Clearly, one could see higher λE values from irrigated crops (ICs) than those for natural vegetation (NV) with some situations of heat horizontal advection. The respective λE, H, and G average ratios to Rn for the ICs ecosystem were 64% to 79%, 18% to 28%, and 3%, respectively. For the NV ecosystem, the corresponding fractions were 4% to 37%, 60% to 94%, and 4%, respectively. The algorithms proved to have strong sensibility to quantifying the large-scale energy and mass exchanges by applying L8 images in mixed agroecosystems of semiarid environments. |
Palavras-Chave: |
Energy partition; Latent heat flux; Net radiation; Sensible heat flux; Soil heat flux. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/162671/1/4838.pdf
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Marc: |
LEADER 02062naa a2200241 a 4500 001 2073988 005 2017-08-14 008 2017 bl uuuu u00u1 u #d 024 7 $a10.1117/1.JRS.11.016030.$2DOI 100 1 $aTEIXEIRA, A. H. de C. 245 $aLarge-scale radiation and energy balances with Landsat 8 images and agrometeorological data in the Brazilian semiarid region.$h[electronic resource] 260 $c2017 300 $ap. 016030-1-016030-15. 520 $aAiming to subsidize the rational water resources management, four Landsat 8 (L8) images along different conditions of the year 2014 were used for modeling the radiation and energy balances in the mixed agroecosystems inside a Brazilian reference semiarid area. The SAFER algorithm was applied to calculate the latent heat flux (λE); net radiation (Rn) was acquired by the Slob equation; ground heat flux (G) was considered a fraction of Rn; and the sensible heat flux (H) was retrieved by residue in the energy balance equation. For classifying the vegetation, the surface resistance algorithm (SUREAL) was used to estimate the surface resistance to the water fluxes (rs) with threshold values for rs. Clearly, one could see higher λE values from irrigated crops (ICs) than those for natural vegetation (NV) with some situations of heat horizontal advection. The respective λE, H, and G average ratios to Rn for the ICs ecosystem were 64% to 79%, 18% to 28%, and 3%, respectively. For the NV ecosystem, the corresponding fractions were 4% to 37%, 60% to 94%, and 4%, respectively. The algorithms proved to have strong sensibility to quantifying the large-scale energy and mass exchanges by applying L8 images in mixed agroecosystems of semiarid environments. 653 $aEnergy partition 653 $aLatent heat flux 653 $aNet radiation 653 $aSensible heat flux 653 $aSoil heat flux 700 1 $aLEIVAS, J. F. 700 1 $aHERNANDEZ, F. B. T. 700 1 $aFRANCO, R. A. M. 773 $tJournal of Applied Remote Sensing$gv. 11, n. 1, jan./mar. 2017.
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