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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
18/06/2015 |
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Data da última atualização: |
10/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
JORGE, V. R.; SILVA, M. R.; GUILLIN, E. A.; FREIRE, M. C. M.; SCHUSTER, I.; ALMEIDA, A. M. R.; OLIVEIRA, L. O. |
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Afiliação: |
UFV; UFV; INTA; UFV; COOPERATIVA CENTRAL DE PESQUISA AGRÍCOLA; ALVARO MANUEL RODRIGUES ALMEIDA, CNPSO; UFV. |
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Título: |
The origin and genetic diversity of the causal agent of Asian soybean rust, Phakopsora pachyrhizi, in South America. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Plant Pathology, [S. l.], v. 64, n. 3, p. 729-737, Jun. 2015. |
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ISSN: |
1365-3059 |
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DOI: |
10.1111/ppa.12300 |
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Idioma: |
Inglês |
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Conteúdo: |
A sequence-based approach was used to investigate molecular genetic variations in Phakopsora pachyrhizi, an obligate biotrophic pathogen that causes Asian soybean rust. In Argentina, the samples came from uredinium-bearing leaves taken from 11 soybean fields; in Brazil, the samples comprised urediniospores from leaves of 10 soybean genotypes that had been grown in three experimental stations during two growing seasons. PCR-based cloning techniques were used to generate DNA sequences for two gene regions and alignments were supplemented with data from GenBank. A total of 575 sequences for the internal transcribed spacer region (18 ribotypes) and 160 partial sequences for a housekeeping gene encoding ADP-ribosylation factor (10 haplotypes) were obtained. Ribotype accumulation curves predicted that about 20 bacterial clones would recover 5?6 ribotypes (c. 70?80% of the total molecular variation) per locality. The samples from the three experimental stations in Brazil displayed most (14 out of 16) ribotypes found worldwide; the lack of genetic structure and differentiation at a diverse geographic scale suggests that both local and distant sources provide airborne inoculum during disease establishment. Soybean genotypes with resistance genes for the Asian soybean rust did not decrease the molecular genetic variation of fungal populations. |
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Thesagro: |
Doença de planta; Ferrugem; Fungo; Phakopsora pachyrhizi; Soja. |
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Thesaurus Nal: |
Microbial growth; Plant diseases and disorders; Soybean rust. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02278naa a2200313 a 4500
001 2017998
005 2017-07-10
008 2015 bl uuuu u00u1 u #d
022 $a1365-3059
024 7 $a10.1111/ppa.12300$2DOI
100 1 $aJORGE, V. R.
245 $aThe origin and genetic diversity of the causal agent of Asian soybean rust, Phakopsora pachyrhizi, in South America.$h[electronic resource]
260 $c2015
520 $aA sequence-based approach was used to investigate molecular genetic variations in Phakopsora pachyrhizi, an obligate biotrophic pathogen that causes Asian soybean rust. In Argentina, the samples came from uredinium-bearing leaves taken from 11 soybean fields; in Brazil, the samples comprised urediniospores from leaves of 10 soybean genotypes that had been grown in three experimental stations during two growing seasons. PCR-based cloning techniques were used to generate DNA sequences for two gene regions and alignments were supplemented with data from GenBank. A total of 575 sequences for the internal transcribed spacer region (18 ribotypes) and 160 partial sequences for a housekeeping gene encoding ADP-ribosylation factor (10 haplotypes) were obtained. Ribotype accumulation curves predicted that about 20 bacterial clones would recover 5?6 ribotypes (c. 70?80% of the total molecular variation) per locality. The samples from the three experimental stations in Brazil displayed most (14 out of 16) ribotypes found worldwide; the lack of genetic structure and differentiation at a diverse geographic scale suggests that both local and distant sources provide airborne inoculum during disease establishment. Soybean genotypes with resistance genes for the Asian soybean rust did not decrease the molecular genetic variation of fungal populations.
650 $aMicrobial growth
650 $aPlant diseases and disorders
650 $aSoybean rust
650 $aDoença de planta
650 $aFerrugem
650 $aFungo
650 $aPhakopsora pachyrhizi
650 $aSoja
700 1 $aSILVA, M. R.
700 1 $aGUILLIN, E. A.
700 1 $aFREIRE, M. C. M.
700 1 $aSCHUSTER, I.
700 1 $aALMEIDA, A. M. R.
700 1 $aOLIVEIRA, L. O.
773 $tPlant Pathology, [S. l.]$gv. 64, n. 3, p. 729-737, Jun. 2015.
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Registro original: |
Embrapa Soja (CNPSO) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
18/11/2022 |
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Data da última atualização: |
23/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
REIS, H. P. G; GIROTO. A. S.; GUIMARÃES, G. G. F.; PUTTI, F. F.; PAVINATO, P. S.; TELES, A. P.; RIBEIRO, C.; FERNANDES, D. M. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
Role of slow-release phosphate nanofertilizers in forage nutrition and phosphorus lability. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
ACS Agricultural Science & Technology, v. 2, 2022. |
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Páginas: |
564–572 |
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DOI: |
10.1021/acsagscitech.2c00012 |
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Idioma: |
Inglês |
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Conteúdo: |
Up to 80% of the applied phosphorus via fertilizers can be lost to the environment through adsorption and precipitation reactions. Although nanoparticulated fertilizers can improve phosphate efficiency, they should be kept with no agglomeration, e.g., by dispersing urea (nanocomposite), which also provides nitrogen for plants. Thus, we evaluated the phosphorus dynamics in the soil and nutrient supply to Panicum maximum cv. ?BRS Zuri? (Zuri grass) through three model nanocomposite fertilizers, hydroxyapatite (HAP), Bayovar rock phosphate (BAY), or triple superphosphate (TSP), dispersed in urea ́ −starch matrices in granular form. The experiments were done in pot experiments, analyzing the chemical composition of forage and soil after each cut. After four cuts, the treatment with the TSP nanocomposite resulted in a higher number of tillers and a higher root dry matter. However, HAP and its composites showed a similar performance to TSP in the first cut for these parameters. Plants grown with TSP have absorbed more phosphorus than those supplemented by nanocomposites (considering similar dry matter yields), which suggests that the release of nutrients from nanocomposites is better adjusted to plants? needs, promoting a better phosphorus use efficiency |
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Palavras-Chave: |
Phosphate fertilizer efficiency; Zuri grass. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02036naa a2200253 a 4500
001 2148463
005 2024-01-23
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1021/acsagscitech.2c00012$2DOI
100 1 $aREIS, H. P. G
245 $aRole of slow-release phosphate nanofertilizers in forage nutrition and phosphorus lability.$h[electronic resource]
260 $c2022
300 $a564–572
520 $aUp to 80% of the applied phosphorus via fertilizers can be lost to the environment through adsorption and precipitation reactions. Although nanoparticulated fertilizers can improve phosphate efficiency, they should be kept with no agglomeration, e.g., by dispersing urea (nanocomposite), which also provides nitrogen for plants. Thus, we evaluated the phosphorus dynamics in the soil and nutrient supply to Panicum maximum cv. ?BRS Zuri? (Zuri grass) through three model nanocomposite fertilizers, hydroxyapatite (HAP), Bayovar rock phosphate (BAY), or triple superphosphate (TSP), dispersed in urea ́ −starch matrices in granular form. The experiments were done in pot experiments, analyzing the chemical composition of forage and soil after each cut. After four cuts, the treatment with the TSP nanocomposite resulted in a higher number of tillers and a higher root dry matter. However, HAP and its composites showed a similar performance to TSP in the first cut for these parameters. Plants grown with TSP have absorbed more phosphorus than those supplemented by nanocomposites (considering similar dry matter yields), which suggests that the release of nutrients from nanocomposites is better adjusted to plants? needs, promoting a better phosphorus use efficiency
653 $aPhosphate fertilizer efficiency
653 $aZuri grass
700 1 $aGIROTO. A. S.
700 1 $aGUIMARÃES, G. G. F.
700 1 $aPUTTI, F. F.
700 1 $aPAVINATO, P. S.
700 1 $aTELES, A. P.
700 1 $aRIBEIRO, C.
700 1 $aFERNANDES, D. M.
773 $tACS Agricultural Science & Technology$gv. 2, 2022.
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Embrapa Instrumentação (CNPDIA) |
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