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Registro Completo |
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
09/04/2019 |
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Data da última atualização: |
27/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CRUSCIOL, C. A. C.; FERRARI NETO, J.; MUI, T. S.; FRANZLUEBBERS, A. J.; COSTA, C. H. M. DA; CASTRO, G. S. A.; RIBEIRO, L. C.; COSTA, N. R. |
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Afiliação: |
CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP; JAYME FERRARI NETO, UNIVERSIDADE CATÓLICA DOM BOSCO; TSAI SIU MUI, USP; ALAN JOSEPH FRANZLUEBBERS, USDA; CLÁUDIO HIDEO MARTINS DA COSTA, UFG; GUSTAVO SPADOTTI AMARAL CASTRO, CNPM; LÍVIA CRISTINA RIBEIRO, UNESP; NÍDIA RAQUEL COSTA, UNESP. |
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Título: |
Rhizobial inoculation and molybdenum fertilization in peanut crops grown in a no tillage system after 20 years of pasture. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 43, p. e0170399, 2019. |
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Páginas: |
19 p. |
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DOI: |
http://dx.doi.org/10.1590/18069657rbcs20170399 |
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Idioma: |
Português |
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Conteúdo: |
Peanut (Arachis hypogea) is an important legume grain consumed by humans and utilized for effective nutrient cycling in a diverse cropping system. Areas that have been cultivated with perennial pasture for decades may have nutritional deficiencies and lack a sufficient population of atmospheric nitrogen-fixing bacteria. Molybdenum is an essential micronutrient that is part of the enzyme nitrogenase contained within symbiotic Bradyrhizobium bacteria, which are responsible for fixing nitrogen in legumes. Our objective was to evaluate the effects of application of Mo at different rates and a rhizobial inoculant on peanut growth characteristics. The experiment was conducted in the 2009/2010 growing season in a no-tillage cropping system following 20-year use as pasture [Urochloa brizantha (Syn. Brachiaria brizantha)]. The experimental design was a randomized complete block with four replicates. The main plots were characterized by peanut inoculation with Bradyrhizobium inoculant or without, and the split plots were characterized by different rates of molybdenum (0, 50, 100, and 200 g ha-1) applied to leaves in the form of ammonium molybdate. The nutritional status of plants, nodulation (number of nodules and nodule dry matter per plant), nitrogenase activity, and nitrogenase specific activity were evaluated at 45 and 64 days after emergence (DAE). The yield components and kernel yield were evaluated at the end of the growing season. Nitrogenase enzyme activity at 64 DAE approximately doubled, and the number of pods per plant was greater with inoculation than without, both of which led to greater yields of pods and kernels. In long-term pasture areas, inoculation and molybdenum fertilization greater than the currently recommended rate appear to be necessary to increase pod and kernel yield per hectare of peanut when managed under no-tillage. MenosPeanut (Arachis hypogea) is an important legume grain consumed by humans and utilized for effective nutrient cycling in a diverse cropping system. Areas that have been cultivated with perennial pasture for decades may have nutritional deficiencies and lack a sufficient population of atmospheric nitrogen-fixing bacteria. Molybdenum is an essential micronutrient that is part of the enzyme nitrogenase contained within symbiotic Bradyrhizobium bacteria, which are responsible for fixing nitrogen in legumes. Our objective was to evaluate the effects of application of Mo at different rates and a rhizobial inoculant on peanut growth characteristics. The experiment was conducted in the 2009/2010 growing season in a no-tillage cropping system following 20-year use as pasture [Urochloa brizantha (Syn. Brachiaria brizantha)]. The experimental design was a randomized complete block with four replicates. The main plots were characterized by peanut inoculation with Bradyrhizobium inoculant or without, and the split plots were characterized by different rates of molybdenum (0, 50, 100, and 200 g ha-1) applied to leaves in the form of ammonium molybdate. The nutritional status of plants, nodulation (number of nodules and nodule dry matter per plant), nitrogenase activity, and nitrogenase specific activity were evaluated at 45 and 64 days after emergence (DAE). The yield components and kernel yield were evaluated at the end of the growing season. Nitrogenase enzyme activity at 64 DAE approxim... Mostrar Tudo |
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Palavras-Chave: |
Nitrogenase activity; Symbiotic fixation. |
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Thesaurus Nal: |
Arachis hypogaea subsp. hypogaea; Nodulation; Urochloa brizantha. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/195665/1/5048.pdf
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Marc: |
LEADER 02805naa a2200289 a 4500
001 2108077
005 2020-04-27
008 2019 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/18069657rbcs20170399$2DOI
100 1 $aCRUSCIOL, C. A. C.
245 $aRhizobial inoculation and molybdenum fertilization in peanut crops grown in a no tillage system after 20 years of pasture.$h[electronic resource]
260 $c2019
300 $a19 p.
520 $aPeanut (Arachis hypogea) is an important legume grain consumed by humans and utilized for effective nutrient cycling in a diverse cropping system. Areas that have been cultivated with perennial pasture for decades may have nutritional deficiencies and lack a sufficient population of atmospheric nitrogen-fixing bacteria. Molybdenum is an essential micronutrient that is part of the enzyme nitrogenase contained within symbiotic Bradyrhizobium bacteria, which are responsible for fixing nitrogen in legumes. Our objective was to evaluate the effects of application of Mo at different rates and a rhizobial inoculant on peanut growth characteristics. The experiment was conducted in the 2009/2010 growing season in a no-tillage cropping system following 20-year use as pasture [Urochloa brizantha (Syn. Brachiaria brizantha)]. The experimental design was a randomized complete block with four replicates. The main plots were characterized by peanut inoculation with Bradyrhizobium inoculant or without, and the split plots were characterized by different rates of molybdenum (0, 50, 100, and 200 g ha-1) applied to leaves in the form of ammonium molybdate. The nutritional status of plants, nodulation (number of nodules and nodule dry matter per plant), nitrogenase activity, and nitrogenase specific activity were evaluated at 45 and 64 days after emergence (DAE). The yield components and kernel yield were evaluated at the end of the growing season. Nitrogenase enzyme activity at 64 DAE approximately doubled, and the number of pods per plant was greater with inoculation than without, both of which led to greater yields of pods and kernels. In long-term pasture areas, inoculation and molybdenum fertilization greater than the currently recommended rate appear to be necessary to increase pod and kernel yield per hectare of peanut when managed under no-tillage.
650 $aArachis hypogaea subsp. hypogaea
650 $aNodulation
650 $aUrochloa brizantha
653 $aNitrogenase activity
653 $aSymbiotic fixation
700 1 $aFERRARI NETO, J.
700 1 $aMUI, T. S.
700 1 $aFRANZLUEBBERS, A. J.
700 1 $aCOSTA, C. H. M. DA
700 1 $aCASTRO, G. S. A.
700 1 $aRIBEIRO, L. C.
700 1 $aCOSTA, N. R.
773 $tRevista Brasileira de Ciência do Solo$gv. 43, p. e0170399, 2019.
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Registro original: |
Embrapa Territorial (CNPM) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
07/10/2021 |
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Data da última atualização: |
07/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
OLIVEIRA, T. C. de A.; BRITO, M. A. P. P.; MARVAL, M. G. de; VICENTINI, N. M.; LANGE, C. C. |
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Afiliação: |
THAIS CRISTINA DE ASSIS OLIVEIRA, Estudante, Universidade Federal de Juiz de Fora; MARIA APARECIDA VASCONCELOS PAIVA BRITO; MARCIA GIAMBIAGI DE MARVAL, Universidade Federal do Rio de Janeiro; NIVEA MARIA VICENTINI, CNPGL; CARLA CHRISTINE LANGE, CNPGL. |
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Título: |
Identification of bovine mastitis pathogens using MALDI-TOF mass spectrometry in Brazil. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Dairy Research, v. 88, p. 302-306, 2021. |
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DOI: |
https://doi.org/10.1017/ S0022029921000595 |
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Idioma: |
Inglês |
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Conteúdo: |
In this Research Communication we evaluate the use of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) to identify 380 bacteria isolated from cases of bovine mastitis in Brazil. MALDI-TOF MS identifications were compared to previous identifications by biochemical tests and 16S rRNA sequencing. MALDI-TOF MS achieved a typeability of 95.5%. The accuracy of MALDI-TOF MS for the identification of Staphylococcus isolates was 93.2%. The agreement between MALDI-TOF MS and biochemical identification of Streptococcus agalactiae was 96%, however, the agreement between these techniques for identifying other catalase-negative, Gram-positive cocci was lower. Agreement in identifying Gram-negative bacteria at the genus level was 90.5%. Our findings corroborate that MALDI-TOF MS is an accurate, rapid and simple technique for identifying bovine mastitis pathogens. The availability of this methodology in some research institutions would represent a significant step toward increasing the diagnosis and epidemiological studies of bovine mastitis and other animal infectious diseases in Brazil. |
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Palavras-Chave: |
Mastite; Staphylococci; Streptococci. |
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Thesagro: |
Bovino; Espectrometria; Estafilococo; Estreptococo; Infecção. |
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Thesaurus NAL: |
Bovine mastitis; Mass spectrometry. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02008naa a2200301 a 4500
001 2135151
005 2021-10-07
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1017/ S0022029921000595$2DOI
100 1 $aOLIVEIRA, T. C. de A.
245 $aIdentification of bovine mastitis pathogens using MALDI-TOF mass spectrometry in Brazil.$h[electronic resource]
260 $c2021
520 $aIn this Research Communication we evaluate the use of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) to identify 380 bacteria isolated from cases of bovine mastitis in Brazil. MALDI-TOF MS identifications were compared to previous identifications by biochemical tests and 16S rRNA sequencing. MALDI-TOF MS achieved a typeability of 95.5%. The accuracy of MALDI-TOF MS for the identification of Staphylococcus isolates was 93.2%. The agreement between MALDI-TOF MS and biochemical identification of Streptococcus agalactiae was 96%, however, the agreement between these techniques for identifying other catalase-negative, Gram-positive cocci was lower. Agreement in identifying Gram-negative bacteria at the genus level was 90.5%. Our findings corroborate that MALDI-TOF MS is an accurate, rapid and simple technique for identifying bovine mastitis pathogens. The availability of this methodology in some research institutions would represent a significant step toward increasing the diagnosis and epidemiological studies of bovine mastitis and other animal infectious diseases in Brazil.
650 $aBovine mastitis
650 $aMass spectrometry
650 $aBovino
650 $aEspectrometria
650 $aEstafilococo
650 $aEstreptococo
650 $aInfecção
653 $aMastite
653 $aStaphylococci
653 $aStreptococci
700 1 $aBRITO, M. A. P. P.
700 1 $aMARVAL, M. G. de
700 1 $aVICENTINI, N. M.
700 1 $aLANGE, C. C.
773 $tJournal of Dairy Research$gv. 88, p. 302-306, 2021.
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