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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
28/09/2022 |
Data da última atualização: |
07/10/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
AMARAL, M. B.; LOPES, T. dos S.; FEDER, C. B.; RIBEIRO, T. G.; PACHECO, R. S.; TEIXEIRA, T. N.; MONTEIRO, E. de C.; RAMALHO, I. O.; MACEDO, R. de O.; BODDEY, R. M.; ZILLI, J. E.; ALVES, B. J. R. |
Afiliação: |
MAYAN BLANC AMARAL, UFRRJ; TAMIRIS DOS SANTOS LOPES, UFRRJ; CAROLINE BUENO FEDER, UFRRJ; THIAGO GONÇALVES RIBEIRO, UFRRJ; RAFAEL SANCHES PACHECO, UFRRJ; TEIXEIRA THIAGO NEVES TEIXEIRA, UFRRJ; EDEVALDO DE CASTRO MONTEIRO, UFRRJ; ISRAEL OLIVEIRA RAMALHO, UFRRJ; ROBERT DE O. MACEDO, UFRRJ; ROBERT MICHAEL BODDEY, CNPAB; JERRI EDSON ZILLI, CNPAB; BRUNO JOSE RODRIGUES ALVES, CNPAB. |
Título: |
Bradyrhizobium occurrence in nodules of perennial horsegram. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Brazilian Journal of Microbiology Online, 17 set. 2022. |
ISSN: |
1678-4405 |
DOI: |
10.1007/s42770-022-00821-2 |
Idioma: |
Inglês |
Conteúdo: |
The introduction of a forage legume into a tropical pasture should decrease the need for N fertilizer, provided biological N-2 fixation (BNF) contributes enough to compensate for exported N. Macrotyloma axillare (perennial horsegram) is a suitable legume for composing mixed pastures, and our hypothesis is that the isolation of indigenous rhizobia from roots and rhizosphere is the way of achieving an efficient inoculant to maximize BNF to the legume. Nodules and rhizosphere soil taken from M. axillare grown in a mixed pasture with palisade grass were sampled and used in a trap host assay using Leonard jars containing a mixture of vermiculite and sand. A total of ten bacteria were initially isolated using this technique. The isolates were then used in two experiments to evaluate the inoculation responses on the perennial horsegram in greenhouse conditions to which nodulation, plant growth, and shoot N accumulation were measured. Phylogenetic analyses based on 16S rRNA and recA placed all strains within genus Bradyrhizobium, some of them not previously described. The best strain provided more than 120 nodules and more than 65 mg of nodules per plant. Strain BR14182 was considered the most promising given the high dry matter and N accumulation in plant shoots. This study provides the first analysis of Bradyrhizobium diversity nodulating M. axillare in Brazil and provided evidence of the role of inoculation in incrementing the plant-rhizobium symbiosis in a forage legume. |
Palavras-Chave: |
Inoculant; Macrotyloma axillare; Mixed pastures; Rhizobia. |
Categoria do assunto: |
S Ciências Biológicas |
Marc: |
LEADER 02392naa a2200325 a 4500 001 2146943 005 2022-10-07 008 2022 bl uuuu u00u1 u #d 022 $a1678-4405 024 7 $a10.1007/s42770-022-00821-2$2DOI 100 1 $aAMARAL, M. B. 245 $aBradyrhizobium occurrence in nodules of perennial horsegram.$h[electronic resource] 260 $c2022 520 $aThe introduction of a forage legume into a tropical pasture should decrease the need for N fertilizer, provided biological N-2 fixation (BNF) contributes enough to compensate for exported N. Macrotyloma axillare (perennial horsegram) is a suitable legume for composing mixed pastures, and our hypothesis is that the isolation of indigenous rhizobia from roots and rhizosphere is the way of achieving an efficient inoculant to maximize BNF to the legume. Nodules and rhizosphere soil taken from M. axillare grown in a mixed pasture with palisade grass were sampled and used in a trap host assay using Leonard jars containing a mixture of vermiculite and sand. A total of ten bacteria were initially isolated using this technique. The isolates were then used in two experiments to evaluate the inoculation responses on the perennial horsegram in greenhouse conditions to which nodulation, plant growth, and shoot N accumulation were measured. Phylogenetic analyses based on 16S rRNA and recA placed all strains within genus Bradyrhizobium, some of them not previously described. The best strain provided more than 120 nodules and more than 65 mg of nodules per plant. Strain BR14182 was considered the most promising given the high dry matter and N accumulation in plant shoots. This study provides the first analysis of Bradyrhizobium diversity nodulating M. axillare in Brazil and provided evidence of the role of inoculation in incrementing the plant-rhizobium symbiosis in a forage legume. 653 $aInoculant 653 $aMacrotyloma axillare 653 $aMixed pastures 653 $aRhizobia 700 1 $aLOPES, T. dos S. 700 1 $aFEDER, C. B. 700 1 $aRIBEIRO, T. G. 700 1 $aPACHECO, R. S. 700 1 $aTEIXEIRA, T. N. 700 1 $aMONTEIRO, E. de C. 700 1 $aRAMALHO, I. O. 700 1 $aMACEDO, R. de O. 700 1 $aBODDEY, R. M. 700 1 $aZILLI, J. E. 700 1 $aALVES, B. J. R. 773 $tBrazilian Journal of Microbiology Online, 17 set. 2022.
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Embrapa Agrobiologia (CNPAB) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
04/08/2022 |
Data da última atualização: |
05/08/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
AGUALONGO, D. A. P.; SILVA, C. J. da; GARCIA, N.; OLIVEIRA, F. K. de; SHIMOIA, E. P.; POSSO, D. A.; OLIVEIRA, A. C. B. de; OLIVEIRA, D. dos S. C. de; AMARANTE, L. do. |
Afiliação: |
DARWIN ALEXIS POMAGUALLI AGUALONGO, UFPEL; CRISTIANE JOVELINA DA-SILVA, UFPEL; NATÁLIA GARCIA, UFPEL; FABIANE KLETKE DE OLIVEIRA, UFPEL; EDUARDO PEREIRA SHIMOIA; DOUGLAS ANTÔNIO POSSO, UFPEL; ANA CLAUDIA BARNECHE DE OLIVEIRA, CPACT; DENISE DOS SANTOS COLARES DE OLIVEIRA, UFPEL; LUCIANO DO AMARANTE, UFPEL. |
Título: |
Waterlogging priming alleviates the oxidative damage, carbohydrate consumption, and yield loss in soybean (Glycine max) plants exposed to waterlogging. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Functional Plant Biology, 2022. |
Páginas: |
14 p. |
ISSN: |
1445-4416 |
DOI: |
https://doi.org/10.1071/FP22030 |
Idioma: |
Inglês |
Notas: |
Online early. Published online: 01 August 2022. |
Conteúdo: |
In this study, we tested whether waterlogging priming at the vegetative stage would mitigate a subsequent waterlogging event at the reproductive stage in soybean [Glycine max (L.) Merr.]. Plants (V3 stage) were subjected to priming for 7 days and then exposed to waterlogging stress for 5 days (R2 stage) with non-primed plants. Roots and leaves were sampled on the fifth day of waterlogging and the second and fifth days of reoxygenation. Overall, priming decreased the H2O2 concentration and lipid peroxidation in roots and leaves during waterlogging and reoxygenation. Priming also decreased the activity of antioxidative enzymes in roots and leaves and increased the foliar concentration of phenols and photosynthetic pigments. Additionally, priming decreased fermentation and alanine aminotransferase activity during waterlogging and reoxygenation. Finally, priming increased the concentration of amino acids, sucrose, and total soluble sugars in roots and leaves during waterlogging and reoxygenation. Thus, primed plants were higher and more productive than non-primed plants. Our study shows that priming alleviates oxidative stress, fermentation, and carbohydrate consumption in parallel to increase the yield of soybean plants exposed to waterlogging and reoxygenation. |
Palavras-Chave: |
Encharcamento. |
Thesagro: |
Carboidrato; Inundação; Produtividade; Soja. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02282naa a2200325 a 4500 001 2145246 005 2022-08-05 008 2022 bl uuuu u00u1 u #d 022 $a1445-4416 024 7 $ahttps://doi.org/10.1071/FP22030$2DOI 100 1 $aAGUALONGO, D. A. P. 245 $aWaterlogging priming alleviates the oxidative damage, carbohydrate consumption, and yield loss in soybean (Glycine max) plants exposed to waterlogging.$h[electronic resource] 260 $c2022 300 $a14 p. 500 $aOnline early. Published online: 01 August 2022. 520 $aIn this study, we tested whether waterlogging priming at the vegetative stage would mitigate a subsequent waterlogging event at the reproductive stage in soybean [Glycine max (L.) Merr.]. Plants (V3 stage) were subjected to priming for 7 days and then exposed to waterlogging stress for 5 days (R2 stage) with non-primed plants. Roots and leaves were sampled on the fifth day of waterlogging and the second and fifth days of reoxygenation. Overall, priming decreased the H2O2 concentration and lipid peroxidation in roots and leaves during waterlogging and reoxygenation. Priming also decreased the activity of antioxidative enzymes in roots and leaves and increased the foliar concentration of phenols and photosynthetic pigments. Additionally, priming decreased fermentation and alanine aminotransferase activity during waterlogging and reoxygenation. Finally, priming increased the concentration of amino acids, sucrose, and total soluble sugars in roots and leaves during waterlogging and reoxygenation. Thus, primed plants were higher and more productive than non-primed plants. Our study shows that priming alleviates oxidative stress, fermentation, and carbohydrate consumption in parallel to increase the yield of soybean plants exposed to waterlogging and reoxygenation. 650 $aCarboidrato 650 $aInundação 650 $aProdutividade 650 $aSoja 653 $aEncharcamento 700 1 $aSILVA, C. J. da 700 1 $aGARCIA, N. 700 1 $aOLIVEIRA, F. K. de 700 1 $aSHIMOIA, E. P. 700 1 $aPOSSO, D. A. 700 1 $aOLIVEIRA, A. C. B. de 700 1 $aOLIVEIRA, D. dos S. C. de 700 1 $aAMARANTE, L. do 773 $tFunctional Plant Biology, 2022.
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