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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
28/11/2018 |
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Data da última atualização: |
02/05/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BREDA. F. A. da F.; SILVA, T. F. R. da; SANTOS, S. G. dos; ALVES, G. C.; REIS, V. M. |
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Afiliação: |
UFRRJ; THAMIRES FERREIRA RODRIGUES DA SILVA, UFRRJ; SILVANA GOMES DOS SANTOS, UFRRJ; GABRIELA CAVALCANTI ALVES, UFRRJ; VERONICA MASSENA REIS, CNPAB. |
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Título: |
Modulation of nitrogen metabolism of maize plants inoculated with Azospirillum brasilense and Herbaspirillum seropedicae. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Archives of Microbiology, v. 201, n. 4, p. 547-558, 2019. |
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DOI: |
10.1007/s00203-018-1594-z |
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Idioma: |
Português |
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Conteúdo: |
Maize is highly responsive to the application of nitrogen to achieve high productivity. Inoculation with diazotrophic bacteria can improve plant growth with low N fertilization. The objective was to evaluate the inoculation of two species of diazotrophs on N metabolism in maize plants, in the presence of two concentrations of nitrogen in a hydroponic system. A factorial arrangement composed of two N levels (3.0 and 0.3 mM), with the presence of Hs?Herbaspirillum seropedicae, and Ab?Azospirillum brasilense or not. The parameters used were dry mass; N, P, and K accumulation; nitrate reductase activity; soluble fractions in roots and leaves. The inoculation altered the N metabolism and promoted greater development of maize plants, as well as a higher accumulation of P and K in the shoots. A more intensive process of N assimilation was evidenced when the plants were inoculated with H. seropedicae, leading to increased levels of NO3− and reduced N-amino, sugars, and NH4+ in leaves associated with high N level, opposite of A. brasilense. |
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Palavras-Chave: |
Inoculation Diazotrophs; Soluble fractions. |
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Thesaurus Nal: |
Nitrogen. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 01755naa a2200217 a 4500
001 2100280
005 2019-05-02
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1007/s00203-018-1594-z$2DOI
100 1 $aBREDA. F. A. da F.
245 $aModulation of nitrogen metabolism of maize plants inoculated with Azospirillum brasilense and Herbaspirillum seropedicae.$h[electronic resource]
260 $c2019
520 $aMaize is highly responsive to the application of nitrogen to achieve high productivity. Inoculation with diazotrophic bacteria can improve plant growth with low N fertilization. The objective was to evaluate the inoculation of two species of diazotrophs on N metabolism in maize plants, in the presence of two concentrations of nitrogen in a hydroponic system. A factorial arrangement composed of two N levels (3.0 and 0.3 mM), with the presence of Hs?Herbaspirillum seropedicae, and Ab?Azospirillum brasilense or not. The parameters used were dry mass; N, P, and K accumulation; nitrate reductase activity; soluble fractions in roots and leaves. The inoculation altered the N metabolism and promoted greater development of maize plants, as well as a higher accumulation of P and K in the shoots. A more intensive process of N assimilation was evidenced when the plants were inoculated with H. seropedicae, leading to increased levels of NO3− and reduced N-amino, sugars, and NH4+ in leaves associated with high N level, opposite of A. brasilense.
650 $aNitrogen
653 $aInoculation Diazotrophs
653 $aSoluble fractions
700 1 $aSILVA, T. F. R. da
700 1 $aSANTOS, S. G. dos
700 1 $aALVES, G. C.
700 1 $aREIS, V. M.
773 $tArchives of Microbiology$gv. 201, n. 4, p. 547-558, 2019.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
24/10/2016 |
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Data da última atualização: |
04/11/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
CADEMARTORI, P. H. G. de; NISGOSKI, S.; MAGALHAES, W. L. E.; BOLZON DE MUNIZ, G. I. |
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Afiliação: |
Pedro Henrique G. de Cademartori, Doutorando da UFPR; Silvana Nisgoski, UFPR; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Graciela Ines B. de Muniz, UFPR. |
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Título: |
Surface wettability of Brazilian tropical wood flooring treated with He plasma. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Maderas. Ciencia y Tecnologia, v. 18, n. 4, p. 715-722, 2016. |
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DOI: |
10.4067/S0718-221X2016005000062 |
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Idioma: |
Inglês |
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Conteúdo: |
This study investigated the effect of plasma treatment on changes of surface wettability of wood flooring from two Brazilian tropical species, Hymenaea spp. (rode locus) and Tabebuia spp. (lapacho). Wood flooring samples were plasma treated at low pressure in a helium atmosphere. Energy level was set at 100 W and four glow discharge times (5, 15, 30 and 45 s) were tested. Changes in wettability were investigated by measuring apparent contact angle, droplet volume and spreading contact area. The results showed less susceptibility of lapacho wood to the plasma treatments, while reduction of apparent contact angle in rode locus wood reached up to 76% for longer discharge times. In general, discharge time of 15 s produced the same effect as discharge of 45 s on wettability, which is important for industrial applications. Visual analyses revealed increase of water droplet spreading on lapacho wood surface, even though the variation of spreading contact area was not significant. Plasma treatment is feasible to improve wettability of tropical woods. Nevertheless, these findings should be investigated further due to the intrinsic characteristics of woods from tropical species. |
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Palavras-Chave: |
Gás hélio; Glow discharge; Helium gas; Molhabilidade; Piso de madeira; Plasma treatment; Spreading; Surface modification; Wetting. |
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Thesagro: |
Plasma; Tratamento. |
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Thesaurus NAL: |
Contact angle. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/149180/1/2016-Washington-Maderas-Surface.pdf
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Marc: |
LEADER 02090naa a2200313 a 4500
001 2055273
005 2016-11-04
008 2016 bl uuuu u00u1 u #d
024 7 $a10.4067/S0718-221X2016005000062$2DOI
100 1 $aCADEMARTORI, P. H. G. de
245 $aSurface wettability of Brazilian tropical wood flooring treated with He plasma.$h[electronic resource]
260 $c2016
520 $aThis study investigated the effect of plasma treatment on changes of surface wettability of wood flooring from two Brazilian tropical species, Hymenaea spp. (rode locus) and Tabebuia spp. (lapacho). Wood flooring samples were plasma treated at low pressure in a helium atmosphere. Energy level was set at 100 W and four glow discharge times (5, 15, 30 and 45 s) were tested. Changes in wettability were investigated by measuring apparent contact angle, droplet volume and spreading contact area. The results showed less susceptibility of lapacho wood to the plasma treatments, while reduction of apparent contact angle in rode locus wood reached up to 76% for longer discharge times. In general, discharge time of 15 s produced the same effect as discharge of 45 s on wettability, which is important for industrial applications. Visual analyses revealed increase of water droplet spreading on lapacho wood surface, even though the variation of spreading contact area was not significant. Plasma treatment is feasible to improve wettability of tropical woods. Nevertheless, these findings should be investigated further due to the intrinsic characteristics of woods from tropical species.
650 $aContact angle
650 $aPlasma
650 $aTratamento
653 $aGás hélio
653 $aGlow discharge
653 $aHelium gas
653 $aMolhabilidade
653 $aPiso de madeira
653 $aPlasma treatment
653 $aSpreading
653 $aSurface modification
653 $aWetting
700 1 $aNISGOSKI, S.
700 1 $aMAGALHAES, W. L. E.
700 1 $aBOLZON DE MUNIZ, G. I.
773 $tMaderas. Ciencia y Tecnologia$gv. 18, n. 4, p. 715-722, 2016.
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