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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
14/04/2020 |
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Data da última atualização: |
20/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
CHAVES-SILVA, S.; HORTA, L. P.; SOUZA, L. T.; SILVA, C. M. da; DOHANIK, C. S.; GOULART, G. A. C.; MARRIEL, I. E.; FÁTIMA, A. de. |
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Afiliação: |
Samuel Chaves-Silva, Universidade Federal de Minas Gerais; Lívia P. Horta, Universidade Federal de Minas Gerais; Leandro T. Souza, Universidade Federal de Minas Gerais; Cleiton M. da Silva, Universidade Federal de Minas Gerais; Caroline S. Dohanik, Universidade Federal de Minas Gerais; Gisele A. C. Goulart, Universidade Federal de Minas Gerais; IVANILDO EVODIO MARRIEL, CNPMS; Ângelo de Fátima, Universidade Federal de Minas Gerais. |
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Título: |
Do schiff bases-based urease inhibitors improve plant growth and affect the activity of soil arginase? |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Industrial Crops & Products, v. 145, article 111995, 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
The increase in nitrogen (N) use efficiency in acidic soils is necessary to boost the tropical agriculture yields and mitigate N losses and the supplementation of urea-based fertilizers with urease inhibitors has been used as a strategy to overcome such problems. Here, 12 Schiff bases were synthesized to investigate the extent of their ability to inhibit ureases and some effects on plant development and soil microbiota metabolism. The performance of compounds 4, 5 and 7 on ureases present in an agricultural clayey dystrophic Red Latosol was greater than that of N-(butyl) thiophosphoric triamide (NBPT), an inhibitor reference. Compound 5 was the most potent on soil ureases; Its concentration necessary to inhibit the soil ureases by 50 % (IC50) was 27.5 ?M, while the IC50 values for 4 and 7 were respectively 129 and 233.9 ?M. Phytotoxicity assays showed that 4, 5 or 7 are not harmful to Lactuca sativa L. (lettuce; dicot) or Pennisetum glaucum (L.) R. Br. (pearl millet; monot) and 4 and 5 (both at 100 ?M) even improved the elongation of lettuce roots. Further tests performed on the pearl milletclayey dystrophic Red Latosol system revealed that urea coated with 5 (1.0 % w/w) was as efficient as NBPTcoated urea (0.25 or 0.5 % w/w), yielding 37.5 % (on average) more N in millet shoots in comparison to plants cultivated in the presence of urea only. Strikingly, the Schiff base 5 did not impair the activity of soil arginases from day 2 to day 7 after soil supplementation with urea plus compound 5. The inhibitory effect of Schiff base 5 and NBPT on soil ureases was transient since the soil urease activity in samples exposed to urea plus 5 or NBPT was similar to that of urea-treated soils from day 2 and so on. Overall, the Schiff base 5 (and 4 and 7 as well) are promising additive candidates for further studies toward the development of new urea-based fertilizer formulations. MenosThe increase in nitrogen (N) use efficiency in acidic soils is necessary to boost the tropical agriculture yields and mitigate N losses and the supplementation of urea-based fertilizers with urease inhibitors has been used as a strategy to overcome such problems. Here, 12 Schiff bases were synthesized to investigate the extent of their ability to inhibit ureases and some effects on plant development and soil microbiota metabolism. The performance of compounds 4, 5 and 7 on ureases present in an agricultural clayey dystrophic Red Latosol was greater than that of N-(butyl) thiophosphoric triamide (NBPT), an inhibitor reference. Compound 5 was the most potent on soil ureases; Its concentration necessary to inhibit the soil ureases by 50 % (IC50) was 27.5 ?M, while the IC50 values for 4 and 7 were respectively 129 and 233.9 ?M. Phytotoxicity assays showed that 4, 5 or 7 are not harmful to Lactuca sativa L. (lettuce; dicot) or Pennisetum glaucum (L.) R. Br. (pearl millet; monot) and 4 and 5 (both at 100 ?M) even improved the elongation of lettuce roots. Further tests performed on the pearl milletclayey dystrophic Red Latosol system revealed that urea coated with 5 (1.0 % w/w) was as efficient as NBPTcoated urea (0.25 or 0.5 % w/w), yielding 37.5 % (on average) more N in millet shoots in comparison to plants cultivated in the presence of urea only. Strikingly, the Schiff base 5 did not impair the activity of soil arginases from day 2 to day 7 after soil supplementation with urea p... Mostrar Tudo |
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Palavras-Chave: |
Microbiota do solo. |
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Thesagro: |
Adubo; Fertilizante Nitrogenado; Fitotoxicidade; Nitrogênio; Uréase. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02706naa a2200277 a 4500
001 2121630
005 2020-04-20
008 2020 bl uuuu u00u1 u #d
100 1 $aCHAVES-SILVA, S.
245 $aDo schiff bases-based urease inhibitors improve plant growth and affect the activity of soil arginase?$h[electronic resource]
260 $c2020
520 $aThe increase in nitrogen (N) use efficiency in acidic soils is necessary to boost the tropical agriculture yields and mitigate N losses and the supplementation of urea-based fertilizers with urease inhibitors has been used as a strategy to overcome such problems. Here, 12 Schiff bases were synthesized to investigate the extent of their ability to inhibit ureases and some effects on plant development and soil microbiota metabolism. The performance of compounds 4, 5 and 7 on ureases present in an agricultural clayey dystrophic Red Latosol was greater than that of N-(butyl) thiophosphoric triamide (NBPT), an inhibitor reference. Compound 5 was the most potent on soil ureases; Its concentration necessary to inhibit the soil ureases by 50 % (IC50) was 27.5 ?M, while the IC50 values for 4 and 7 were respectively 129 and 233.9 ?M. Phytotoxicity assays showed that 4, 5 or 7 are not harmful to Lactuca sativa L. (lettuce; dicot) or Pennisetum glaucum (L.) R. Br. (pearl millet; monot) and 4 and 5 (both at 100 ?M) even improved the elongation of lettuce roots. Further tests performed on the pearl milletclayey dystrophic Red Latosol system revealed that urea coated with 5 (1.0 % w/w) was as efficient as NBPTcoated urea (0.25 or 0.5 % w/w), yielding 37.5 % (on average) more N in millet shoots in comparison to plants cultivated in the presence of urea only. Strikingly, the Schiff base 5 did not impair the activity of soil arginases from day 2 to day 7 after soil supplementation with urea plus compound 5. The inhibitory effect of Schiff base 5 and NBPT on soil ureases was transient since the soil urease activity in samples exposed to urea plus 5 or NBPT was similar to that of urea-treated soils from day 2 and so on. Overall, the Schiff base 5 (and 4 and 7 as well) are promising additive candidates for further studies toward the development of new urea-based fertilizer formulations.
650 $aAdubo
650 $aFertilizante Nitrogenado
650 $aFitotoxicidade
650 $aNitrogênio
650 $aUréase
653 $aMicrobiota do solo
700 1 $aHORTA, L. P.
700 1 $aSOUZA, L. T.
700 1 $aSILVA, C. M. da
700 1 $aDOHANIK, C. S.
700 1 $aGOULART, G. A. C.
700 1 $aMARRIEL, I. E.
700 1 $aFÁTIMA, A. de
773 $tIndustrial Crops & Products$gv. 145, article 111995, 2020.
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