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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: |
28/10/2010 |
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Data da última atualização: |
26/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KUMUDINI, S.; GODOY, C. V.; KENNEDY, B.; PRIOR, E.; OMIELAN, J.; BOERMA, H. R.; HERSHMANN, D. |
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Afiliação: |
S. KUMUDINI, Monsanto Co.; CLAUDIA VIEIRA GODOY, CNPSO; B. KENNEDY, University of Kentucky; E. PRIOR, University of Kentucky; J. OMIELAN, University of Kentuchy; H. R. BOERMA, University of Georgia; D. HERSHMANN, University of Kentucky. |
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Título: |
Role of host-plant resistance and disease development stage on leaf photosynthetic competence of soybean rust infected leaves. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Crop Science, Madison, v. 50, n. p. 2533-2542, nov./dec. 2010. |
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DOI: |
10.2135/cropsci2010.01.0003 |
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Idioma: |
Inglês |
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Conteúdo: |
Host-plant resistance is known to reduce fungal growth of Phakospora pachyrhizi Syd. & P. Syd., the causal agent of soybean rust (SBR) in soybean (Glycine max L. Merr.). This disease has been shown to reduce soybean leaf photosynthesis in susceptible soybean plants. Since resistant lines have reduced fungal growth, the resistance genes may protect these plants against injury to leaf photosynthesis. The objectives of this study were to determine the impact of a host-plant resistance gene and disease developmental stage on leaf photosynthesis. Two controlled-environment studies and a field experiment were conducted using genotypes resistant and susceptible to SBR. Photosynthesis was measured at the pre- and the postsporulation disease developmental stage and its quantitative impact was calculated for the genotypes. The susceptible genotypes formed tan, sporulating lesions, and the resistant genotype formed reddish-brown (RB), nonsporulating lesions. The resistant genotype reduced disease severity (measured as relative lesion area). The negative impact of SBR on leaf photosynthesis was the same for resistant and susceptible genotypes (at equivalent disease severity levels), and the pre- and postsporulation disease development stages. Since the resistant genotype formed significantly lower lesion area, the reduced disease severity and the lack of sporulation in the resistant genotype will likely minimize the impact of the disease on canopy photosynthesis and yield. |
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Thesagro: |
Ferrugem; Fungo; Phakopsora Pachyrhizi; Praga de planta; Soja. |
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Thesaurus Nal: |
Microbial growth; Soybean rust; Soybeans. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02341naa a2200301 a 4500
001 1865531
005 2017-07-26
008 2010 bl uuuu u00u1 u #d
024 7 $a10.2135/cropsci2010.01.0003$2DOI
100 1 $aKUMUDINI, S.
245 $aRole of host-plant resistance and disease development stage on leaf photosynthetic competence of soybean rust infected leaves.
260 $c2010
520 $aHost-plant resistance is known to reduce fungal growth of Phakospora pachyrhizi Syd. & P. Syd., the causal agent of soybean rust (SBR) in soybean (Glycine max L. Merr.). This disease has been shown to reduce soybean leaf photosynthesis in susceptible soybean plants. Since resistant lines have reduced fungal growth, the resistance genes may protect these plants against injury to leaf photosynthesis. The objectives of this study were to determine the impact of a host-plant resistance gene and disease developmental stage on leaf photosynthesis. Two controlled-environment studies and a field experiment were conducted using genotypes resistant and susceptible to SBR. Photosynthesis was measured at the pre- and the postsporulation disease developmental stage and its quantitative impact was calculated for the genotypes. The susceptible genotypes formed tan, sporulating lesions, and the resistant genotype formed reddish-brown (RB), nonsporulating lesions. The resistant genotype reduced disease severity (measured as relative lesion area). The negative impact of SBR on leaf photosynthesis was the same for resistant and susceptible genotypes (at equivalent disease severity levels), and the pre- and postsporulation disease development stages. Since the resistant genotype formed significantly lower lesion area, the reduced disease severity and the lack of sporulation in the resistant genotype will likely minimize the impact of the disease on canopy photosynthesis and yield.
650 $aMicrobial growth
650 $aSoybean rust
650 $aSoybeans
650 $aFerrugem
650 $aFungo
650 $aPhakopsora Pachyrhizi
650 $aPraga de planta
650 $aSoja
700 1 $aGODOY, C. V.
700 1 $aKENNEDY, B.
700 1 $aPRIOR, E.
700 1 $aOMIELAN, J.
700 1 $aBOERMA, H. R.
700 1 $aHERSHMANN, D.
773 $tCrop Science, Madison$gv. 50, n. p. 2533-2542, nov./dec. 2010.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
29/12/2022 |
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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: |
BORGES, R.; SOTILES, A. R.; GIROTO, A. S.; GUIMARÃES, G. G. F.; WYPRYCH, F.; JABLONOWSKI, N. D.; RIBEIRO, C. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
Mechanochemical activation of elemental sulfur increases Its bioavailability in the forage species Brachiaria production. |
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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: |
1292–1299 |
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ISSN: |
2692-1952 |
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DOI: |
https://doi.org/10.1021/acsagscitech.2c00248 |
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Idioma: |
Inglês |
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Conteúdo: |
Although sulfur is an essential macronutrient for plants, its supply through elemental S0 is not efficient, demanding its oxidation by soil microbiota before plant uptake. Thus, we demonstrate that a simple reactive mechanochemical route, using anhydrous KOH as a reactant with no need for water addition, can convert S0 to bio-absorbable oxidized forms, leading to residualK+ as a plant nutrient in the final composition. The powdery products obtained by 1 h (S-1 h) or 8 h (S-8 h) milling have been fullyconverted to HSO3 −, SO3 2−, and SO42−, also suggesting different amounts of these sulfur oxides according to the milling. S-1 h and S-8 h were efficient for S and K fertilization, as probed by the successful growing of the forage crop Brachiaria ssp. in a greenhouse trial, with similar biomass yields observed for K2SO4 (positive control) and superior to S0 + KCl (negative control). These data suggest that the mechanochemical process provides a sustainable route to increase sulfur plant bioavailability, suggesting a simple alternative that can be easily implemented in forage plant production sites such as Brachiaria ssp. |
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Palavras-Chave: |
Mechanochemical reaction; Sulfur oxidation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01950naa a2200253 a 4500
001 2150482
005 2024-01-23
008 2022 bl uuuu u00u1 u #d
022 $a2692-1952
024 7 $ahttps://doi.org/10.1021/acsagscitech.2c00248$2DOI
100 1 $aBORGES, R.
245 $aMechanochemical activation of elemental sulfur increases Its bioavailability in the forage species Brachiaria production.$h[electronic resource]
260 $c2022
300 $a1292–1299
520 $aAlthough sulfur is an essential macronutrient for plants, its supply through elemental S0 is not efficient, demanding its oxidation by soil microbiota before plant uptake. Thus, we demonstrate that a simple reactive mechanochemical route, using anhydrous KOH as a reactant with no need for water addition, can convert S0 to bio-absorbable oxidized forms, leading to residualK+ as a plant nutrient in the final composition. The powdery products obtained by 1 h (S-1 h) or 8 h (S-8 h) milling have been fullyconverted to HSO3 −, SO3 2−, and SO42−, also suggesting different amounts of these sulfur oxides according to the milling. S-1 h and S-8 h were efficient for S and K fertilization, as probed by the successful growing of the forage crop Brachiaria ssp. in a greenhouse trial, with similar biomass yields observed for K2SO4 (positive control) and superior to S0 + KCl (negative control). These data suggest that the mechanochemical process provides a sustainable route to increase sulfur plant bioavailability, suggesting a simple alternative that can be easily implemented in forage plant production sites such as Brachiaria ssp.
653 $aMechanochemical reaction
653 $aSulfur oxidation
700 1 $aSOTILES, A. R.
700 1 $aGIROTO, A. S.
700 1 $aGUIMARÃES, G. G. F.
700 1 $aWYPRYCH, F.
700 1 $aJABLONOWSKI, N. D.
700 1 $aRIBEIRO, C.
773 $tACS Agricultural Science & Technology$gv. 2, 2022.
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