| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Milho e Sorgo. |
|
Data corrente: |
05/08/2005 |
|
Data da última atualização: |
13/05/2025 |
|
Autoria: |
VASCONCELOS, M. J. V. de; VASCONCELOS, M. J. V. de. |
|
Afiliação: |
MARIA JOSE VILACA DE VASCONCELOS, CNPMS. |
|
Título: |
Determining the molecular basis of phosphorus efficiency in tropical maize and sorghum genotypes. |
|
Ano de publicação: |
2004 |
|
Fonte/Imprenta: |
2004. |
|
Páginas: |
183 f. |
|
Idioma: |
Inglês |
|
Notas: |
Tese (Doutorado) - Purdue University, West Lafayette. |
|
Conteúdo: |
Maize and sorghum are important crop species of the Brazilian savanna vegetation algo known as "cerrado". The soils in "cerrado" are mainly acidic which render phosphorus (Pi) unavailable to the plants. Pi is one of the essential nutrients required by plants and govems their growth, development and yield potentials. Coordinated induction of high affinity Pi transporters is one of the earlier molecular responses to Pi deficiency. In this study I used the genotypes of maize and sorghum exhibiting a wide spectrum of variability in their Pi use efficiency. To evaluate the role of Pi transporters in Pi utilization, I isolated and characterized high affinity Pi transporters (SbPT-1 and SbPT-2) from Sorghum bicolor. These transporters along with Pi transporters from Zea mays were transcriptionally regulated by Pi and exhibited spatio-temporal expression. Interestingly, the induction of SbPTs in stem of Pi efficient genotypes under nutrient deficiency suggest that not only acquisition but algo mobilization of Pi to different parts of the plants could have significant impact on yield potential. Furthermore, Pi transporters from maize and sorghum revealed differential expression in different parts of the root. In addition, microarray analysis of transcripts from phosphorus deficient roots of maize revealed a set of genes, such as those encoding a member of sulphate transporter family, A-1, glycerol-3-phosphate permease and BAT-3 a proline rich protein, which were responsive to Pi deficiency. A correlation was algo observed between the higher Pi use efficiency of the genotypes and some of the biochemical traits such as Pi content and anthocyanins accumulation in roots and shoots. There were striking differences in acid phosphatase activity between Pi efficient and inefficient genotypes. The study suggests that Pi transporters and some of the Pi responsive genes identified through microarray could serve as molecular determinants of Pi use efficiency in crop species grown in Pi-deprived acidic soils. These studies clearly showed that different molecular and biochemical traits contribute towards phosphorus efficiency in tropical maize and sorghum. MenosMaize and sorghum are important crop species of the Brazilian savanna vegetation algo known as "cerrado". The soils in "cerrado" are mainly acidic which render phosphorus (Pi) unavailable to the plants. Pi is one of the essential nutrients required by plants and govems their growth, development and yield potentials. Coordinated induction of high affinity Pi transporters is one of the earlier molecular responses to Pi deficiency. In this study I used the genotypes of maize and sorghum exhibiting a wide spectrum of variability in their Pi use efficiency. To evaluate the role of Pi transporters in Pi utilization, I isolated and characterized high affinity Pi transporters (SbPT-1 and SbPT-2) from Sorghum bicolor. These transporters along with Pi transporters from Zea mays were transcriptionally regulated by Pi and exhibited spatio-temporal expression. Interestingly, the induction of SbPTs in stem of Pi efficient genotypes under nutrient deficiency suggest that not only acquisition but algo mobilization of Pi to different parts of the plants could have significant impact on yield potential. Furthermore, Pi transporters from maize and sorghum revealed differential expression in different parts of the root. In addition, microarray analysis of transcripts from phosphorus deficient roots of maize revealed a set of genes, such as those encoding a member of sulphate transporter family, A-1, glycerol-3-phosphate permease and BAT-3 a proline rich protein, which were responsive to Pi defi... Mostrar Tudo |
|
Thesagro: |
Genética. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02653nam a2200157 a 4500
001 1480787
005 2025-05-13
008 2004 bl uuuu m 00u1 u #d
100 1 $aVASCONCELOS, M. J. V. de
245 $aDetermining the molecular basis of phosphorus efficiency in tropical maize and sorghum genotypes.
260 $a2004.$c2004
300 $a183 f.
500 $aTese (Doutorado) - Purdue University, West Lafayette.
520 $aMaize and sorghum are important crop species of the Brazilian savanna vegetation algo known as "cerrado". The soils in "cerrado" are mainly acidic which render phosphorus (Pi) unavailable to the plants. Pi is one of the essential nutrients required by plants and govems their growth, development and yield potentials. Coordinated induction of high affinity Pi transporters is one of the earlier molecular responses to Pi deficiency. In this study I used the genotypes of maize and sorghum exhibiting a wide spectrum of variability in their Pi use efficiency. To evaluate the role of Pi transporters in Pi utilization, I isolated and characterized high affinity Pi transporters (SbPT-1 and SbPT-2) from Sorghum bicolor. These transporters along with Pi transporters from Zea mays were transcriptionally regulated by Pi and exhibited spatio-temporal expression. Interestingly, the induction of SbPTs in stem of Pi efficient genotypes under nutrient deficiency suggest that not only acquisition but algo mobilization of Pi to different parts of the plants could have significant impact on yield potential. Furthermore, Pi transporters from maize and sorghum revealed differential expression in different parts of the root. In addition, microarray analysis of transcripts from phosphorus deficient roots of maize revealed a set of genes, such as those encoding a member of sulphate transporter family, A-1, glycerol-3-phosphate permease and BAT-3 a proline rich protein, which were responsive to Pi deficiency. A correlation was algo observed between the higher Pi use efficiency of the genotypes and some of the biochemical traits such as Pi content and anthocyanins accumulation in roots and shoots. There were striking differences in acid phosphatase activity between Pi efficient and inefficient genotypes. The study suggests that Pi transporters and some of the Pi responsive genes identified through microarray could serve as molecular determinants of Pi use efficiency in crop species grown in Pi-deprived acidic soils. These studies clearly showed that different molecular and biochemical traits contribute towards phosphorus efficiency in tropical maize and sorghum.
650 $aGenética
700 1 $aVASCONCELOS, M. J. V. de
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 13 | |
| 1. |  | POERSCH, N. L.; RIBEIRO, N. D.; ROSA, D. P.; POSSOBOM, M. T. D. F. Genetic control of potassium content of common bean seeds. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 46, n. 6, p. 626-632, jun. 2011 Título em português: Controle genético do teor de potássio em sementes de feijão.| Biblioteca(s): Embrapa Unidades Centrais. |
|    |
| 3. | | ZENI, R.; ROSA. D. P. da; PESINI, F.; FINCATTO, D.; BAMBERG, A. L.; MARTINAZZO, R.; SILVEIRA, C. A. P. Desenvolvimento de aveia branca em diferentes manejos fisicos e quimicos em nitossolo. In: CONGRESO LATINOAMERICANO DE LA CIENCIA DEL SUELO, 20.; CONGRESO PERUANO DE LA CIENCIA DEL SUELO, 16., 2014, Cusco. Educar para preservar el suelo y conservar la vida en la tierra: [anales]. Cusco: Sociedade Latinoamericana de la Sciencia del Suelo: Sociedade Peruana de la Sciencia del Suelo, 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
| |
| 4. | | ROSA, D. P. da; REICHERT, J. M.; MENTGES, M. I.; ROSA, V. T. da; VIEIRA, D. A.; REINERT, D. J. Demanda de tração e propriedades físicas de um Argissolo em diferentes manejos e intensidades de tráfego. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 1, p. 118-126, jan. 2012. Título em inglês: Draught requirement and physical properties in a Hapludalf at different management and traffic intensity levels.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| 5. | | NAVROSKI, M. C.; PEREIRA, M. de O.; BORSOI, G. A.; KALIL FILHO, A. N.; NASCIMENTO, B.; ROSA, D. P. da. Tolerância ao frio e características silviculturais do cedro-australiano no sul do Brasil. Pesquisa Florestal Brasileira, Colombo, v. 37, n. 89, p. 47-54, jan./mar. 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Florestas. |
| |
| 6. | | MENTGES, M. I.; REICHERT, J. M.; ROSA, D. P. da; VIEIRA, D. A.; ROSA, V. T. da; REINERT, D. J. Propriedades físico-hídricas do solo e demanda energética de haste escarificadora em Argissolo compactado. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 45, n. 3, p. 315-321, mar. 2010 Título em inglês: Soil physicohydric properties and chisel energy demand in a compacted Alfisol.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| 7. | | ROSA, D. P. da; REICHERT, J. M.; SATTLER, A.; REINERT, D. J.; MENTGES, M. I.; VIEIRA, D. A. Relação entre solo e haste sulcadora de semeadora em Latossolo escarificado em diferentes épocas. Pesquisa Agropecuária Brasileira, Brasilia, DF, v. 43, n. 3, p. 395-400, mar. 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Trigo; Embrapa Unidades Centrais. |
| |
| 8. | | ROSA, V. T. da; ROSA, D. P. da; SATTLER, A.; MENTGES, M. I.; VIEIRA, D. A.; REICHERT, J. M.; REINERT, D. J. Alteração da condutividade hidráulica saturada do solo em áreas com diferentes níveis de tráfego de máquinas e prazos de adoção do sistema plantio direto. In: REUNIÃO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 17., 2008, Rio de Janeiro. Manejo e conservação do solo e da água no contexto das mudanças ambientais: anais. Rio de Janeiro: UFRRJ: Embrapa Solos; Seropédica: Embrapa Agrobiologia, 2008. 4 p.| Biblioteca(s): Embrapa Trigo. |
| |
| 9. | | REICHERT, J. M.; MENTGES, M. I.; ROSA, D. P.; VIEIRA, D. A.; VOGELMANN, E. S.; BARROS, C. A. P. de; REINERT, D. J.; SATTLER, A. Demanda energética solicitada à haste sulcadora de semeadora em um argissolo vermelho sob campo nativo. In: REUNIÃO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 17., 2008, Rio de Janeiro. Manejo e conservação do solo e da água no contexto das mudanças ambientais: anais. Rio de Janeiro: UFRRJ: Embrapa Solos; Seropédica: Embrapa Agrobiologia, 2008. 4 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
| |
| 10. | | ROSA, D. P. da; ROSA, V. T. da; REICHERT, J. M.; REINERT, D. J.; SATTLER, A.; MENTGES, M. I.; VIEIRA, D. A. Evolução da compressibilidade de um latossolo argiloso sob semeadura direta. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 31., 2007, Gramado. Conquistas e desafios da ciência do solo brasileiro. Porto Alegre: SBCS, Núcleo Regional Sul: UFRGS, 2007. 1 CD-ROM. 5 p.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Trigo. |
| |
| 11. | | REICHERT, J. M.; ROSA, V. T. da; VOGELMANN, E. S.; ROSA, D. P. da; HORN, R.; REINERT, D. J.; SATTLER, A.; DENARDIN, J. E. Conceptual framework for capacity and intensity physical soil properties affected by short and long-term (14 years) continuous no-tillage and controlled traffic. Soil & Tillage Research, Amsterdam, v. 158, p. 123-136, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Trigo. |
| |
| 12. | | BEZERRA, A. R. G.; SEDIYAMA, T.; SILVA, F. L. da; CRUZ, C. D.; SILVA, A. F. da; SILVA, F. C. dos S.; ROSA, D. P. Complementarity between parents for earliness and grain yield in soybean. Pesquisa Agropecuária Brasileira, v. 57, e02657, 2022. Título em português: Complementaridade entre genitores quanto à precocidade e ao rendimento de grãos em soja.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| 13. | | TERRA, L. A.; SCHWAB, S.; TEIXEIRA, K. R. dos S.; ARAUJO, J. L. S. de; CHAVES, M. S.; FREITAS, H. R. B. de; CRIVELARO, A. L. R.; NUNES, A. B. de C.; SANTOS, C. M. dos; ROSA, D. P. da S.; PADILHA, D. da S.; SILVA, E. da; MENDES, V. S.; FARINELLI, L.; CRUZ, L. M.; BALDANI, J. I. Draft genome sequence of Nitrospirillum amazonense strain CBAmC, a nitrogen fixer and plant growth promoter isolated from sugarcane, reveal bacterial potential benefits to cane culture In: INTERNATIONAL PGPR WORKSHOP, 10., Liége, 2015. Program and abstract book. Liége: Université de Liége, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
| |
| Registros recuperados : 13 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
