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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
11/12/2014 |
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Data da última atualização: |
05/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZANGARO, W.; ALVES, R. de A.; SOUZA, P. B. de; ROSTIROLA, L. V.; LESCANO, L. E. A. M.; RONDINA, A. B. L.; NOGUEIRA, M. A. |
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Afiliação: |
WALDEMAR ZANGARO, UEL; RICARDO DE ALMEIDA ALVES, UEL; PRISCILA BOCHI DE SOUZA, UEL; LEILA VERGAL ROSTIROLA, UEL; LUIZ EDUARDO AZEVEDO MARQUES LESCANO, UEL; ARTUR BERBEL LÍRIO RONDINA, UEL; MARCO ANTONIO NOGUEIRA, CNPSO. |
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Título: |
Succession and environmental variation infuence soil exploration potential by fne roots and mycorrhizal fungi in an Atlantic ecosystem in southern Brazil. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Journal of Tropical Ecology, Cambridge, v. 30, n. 3, p. 237-248, 2014. |
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ISSN: |
0266-4674 |
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DOI: |
10.1017/S0266467414000078 |
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Idioma: |
Inglês |
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Conteúdo: |
Fast-growing plant species are plentiful at the early stages of succession and possess roots with greater capacity for soil exploration than slow-growing plant species of late stages. Thus, the dynamics of fine-root production, morphological traits and arbuscular mycorrhizal fungal (AMF) infection intensity were assessed monthly over 1 y in the grassland, scrub, secondary and mature forests of the Atlantic Forest ecosystem, amounting to 13 consecutive samplings. Fine roots were sampled in three 100 × 100-m plots at each study site. Each plot was subdivided in five 20 × 100-m subplots and 15 soil samples were randomly taken from a depth of 0?5 cm in soil within each plot. The average of the fine-root dry mass increased from 1.39 mg cm?3 soil in the grassland to 3.37 mg cm?3 in the secondary forest; fine-root tip diameter varied from 146 ?m in the grassland to 303 ?m in the mature forest; tissue density from 0.24 g cm?3 root in the grassland to 0.30 g cm?3 in the mature forest and fine-root length was 4.52 cm cm?3 soil in the grassland and 6.48 cm cm?3 soil in the secondary forest. On the other hand, fine-root specific length decreased from 43.9 m g?1 root to 18.3 m g?1 root in the mature forest; incidence of root hairs was 67% in the grassland and 30% in the mature forest; the length of root hairs was 215 ?m in the grassland and 112 ?m in the mature forest; and the intensity of AMF infection decreased from 66% in the grassland to 17% in the mature forest. In addition to AMF infection, the environmental variation also affected dry mass production and morphological traits of fine roots. During the cool season, fine-root dry mass, fine-root length, incidence and length of root hairs and intensity of AMF infection decreased compared with the warm season. We verified that the potential for soil exploration, that expresses the capacity for nutrient acquisition via fine roots and AMF infection intensity, decreased during the cool season and with the advance of the successional groups. These results indicate that fine-root traits and intensity of AMF infection are influenced by the intrinsic nutrient requirements of the plant species in each ecological group. MenosFast-growing plant species are plentiful at the early stages of succession and possess roots with greater capacity for soil exploration than slow-growing plant species of late stages. Thus, the dynamics of fine-root production, morphological traits and arbuscular mycorrhizal fungal (AMF) infection intensity were assessed monthly over 1 y in the grassland, scrub, secondary and mature forests of the Atlantic Forest ecosystem, amounting to 13 consecutive samplings. Fine roots were sampled in three 100 × 100-m plots at each study site. Each plot was subdivided in five 20 × 100-m subplots and 15 soil samples were randomly taken from a depth of 0?5 cm in soil within each plot. The average of the fine-root dry mass increased from 1.39 mg cm?3 soil in the grassland to 3.37 mg cm?3 in the secondary forest; fine-root tip diameter varied from 146 ?m in the grassland to 303 ?m in the mature forest; tissue density from 0.24 g cm?3 root in the grassland to 0.30 g cm?3 in the mature forest and fine-root length was 4.52 cm cm?3 soil in the grassland and 6.48 cm cm?3 soil in the secondary forest. On the other hand, fine-root specific length decreased from 43.9 m g?1 root to 18.3 m g?1 root in the mature forest; incidence of root hairs was 67% in the grassland and 30% in the mature forest; the length of root hairs was 215 ?m in the grassland and 112 ?m in the mature forest; and the intensity of AMF infection decreased from 66% in the grassland to 17% in the mature forest. In addition to AMF i... Mostrar Tudo |
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Thesagro: |
Solo. |
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Categoria do assunto: |
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Marc: |
LEADER 02953naa a2200229 a 4500
001 2002332
005 2022-04-05
008 2014 bl uuuu u00u1 u #d
022 $a0266-4674
024 7 $a10.1017/S0266467414000078$2DOI
100 1 $aZANGARO, W.
245 $aSuccession and environmental variation infuence soil exploration potential by fne roots and mycorrhizal fungi in an Atlantic ecosystem in southern Brazil.$h[electronic resource]
260 $c2014
520 $aFast-growing plant species are plentiful at the early stages of succession and possess roots with greater capacity for soil exploration than slow-growing plant species of late stages. Thus, the dynamics of fine-root production, morphological traits and arbuscular mycorrhizal fungal (AMF) infection intensity were assessed monthly over 1 y in the grassland, scrub, secondary and mature forests of the Atlantic Forest ecosystem, amounting to 13 consecutive samplings. Fine roots were sampled in three 100 × 100-m plots at each study site. Each plot was subdivided in five 20 × 100-m subplots and 15 soil samples were randomly taken from a depth of 0?5 cm in soil within each plot. The average of the fine-root dry mass increased from 1.39 mg cm?3 soil in the grassland to 3.37 mg cm?3 in the secondary forest; fine-root tip diameter varied from 146 ?m in the grassland to 303 ?m in the mature forest; tissue density from 0.24 g cm?3 root in the grassland to 0.30 g cm?3 in the mature forest and fine-root length was 4.52 cm cm?3 soil in the grassland and 6.48 cm cm?3 soil in the secondary forest. On the other hand, fine-root specific length decreased from 43.9 m g?1 root to 18.3 m g?1 root in the mature forest; incidence of root hairs was 67% in the grassland and 30% in the mature forest; the length of root hairs was 215 ?m in the grassland and 112 ?m in the mature forest; and the intensity of AMF infection decreased from 66% in the grassland to 17% in the mature forest. In addition to AMF infection, the environmental variation also affected dry mass production and morphological traits of fine roots. During the cool season, fine-root dry mass, fine-root length, incidence and length of root hairs and intensity of AMF infection decreased compared with the warm season. We verified that the potential for soil exploration, that expresses the capacity for nutrient acquisition via fine roots and AMF infection intensity, decreased during the cool season and with the advance of the successional groups. These results indicate that fine-root traits and intensity of AMF infection are influenced by the intrinsic nutrient requirements of the plant species in each ecological group.
650 $aSolo
700 1 $aALVES, R. de A.
700 1 $aSOUZA, P. B. de
700 1 $aROSTIROLA, L. V.
700 1 $aLESCANO, L. E. A. M.
700 1 $aRONDINA, A. B. L.
700 1 $aNOGUEIRA, M. A.
773 $tJournal of Tropical Ecology, Cambridge$gv. 30, n. 3, p. 237-248, 2014.
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Embrapa Soja (CNPSO) |
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Registro |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
08/12/2016 |
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Data da última atualização: |
08/12/2016 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
PAIM, D. R. S. F.; TELES, A. S. C.; COSTA, S. D. de O.; WALTER, E. H. M.; TONON, R. V. |
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Afiliação: |
UFRRJ; UFRJ; SIMONE DUARTE DE OLIVEIRA COSTA, CTAA; EDUARDO HENRIQUE MIRANDA WALTER, CTAA; RENATA VALERIANO TONON, CTAA. |
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Título: |
Estabilidade do suco probiótico de juçara (Euterpe edulis M.) microencapsulado por spray drying e por liofilização. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 25.; CIGR SESSION 6 INTERNATIONAL TECHNICAL SYMPOSIUM, 10., 2016, Gramado. Alimentação: árvore que sustenta a vida. Anais. Gramado: SBCTA Regional, 2016. |
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Páginas: |
6 p. |
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Idioma: |
Português |
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Notas: |
Food: the tree that sustains life. 743. |
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Conteúdo: |
Este trabalho teve como objetivo a avaliação da estabilidade à estocagem do suco de juçara probiótico microencapsulado. O suco de juçara adicionado de micro-organismos Bifidobacterium animalis spp. Lactis foi microencapsulado por dois métodos (spray drying e liofilização), utilizando como material de parede uma mistura contendo maltodextrina e inulina (1:1). As partículas produzidas foram estocadas em diferentes temperaturas (7 e 35 ºC) e avaliadas em relação à contagem de células viáveis, compostos fenólicos totais e capacidade antioxidante, ao longo de 180 dias. As amostras estocadas a 35 ºC apresentaram contagem inferior a 104 UFC/g logo no trigésimo dia de estocagem, enquanto as armazenadas a 7ºC apresentaram contagem superior a 107 UFC/g. O processo de liofilização resultou em maior contagem de micro-organismos ao longo da estocagem. O teor de compostos fenólicos e a capacidade antioxidante mantiveram-se estáveis até 60 dias de estocagem, apresentando um decréscimo mais pronunciado a partir de 120 dias. |
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Palavras-Chave: |
Compostos fenólicos; Microencapsulação. |
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Thesaurus NAL: |
Bifidobacterium animalis; microencapsulation. |
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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/151458/1/Trabalho-Diego-FINAL.pdf
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Marc: |
LEADER 01972nam a2200229 a 4500
001 2058244
005 2016-12-08
008 2016 bl uuuu u00u1 u #d
100 1 $aPAIM, D. R. S. F.
245 $aEstabilidade do suco probiótico de juçara (Euterpe edulis M.) microencapsulado por spray drying e por liofilização.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE CIÊNCIA E TECNOLOGIA DE ALIMENTOS, 25.; CIGR SESSION 6 INTERNATIONAL TECHNICAL SYMPOSIUM, 10., 2016, Gramado. Alimentação: árvore que sustenta a vida. Anais. Gramado: SBCTA Regional$c2016
300 $a6 p.
500 $aFood: the tree that sustains life. 743.
520 $aEste trabalho teve como objetivo a avaliação da estabilidade à estocagem do suco de juçara probiótico microencapsulado. O suco de juçara adicionado de micro-organismos Bifidobacterium animalis spp. Lactis foi microencapsulado por dois métodos (spray drying e liofilização), utilizando como material de parede uma mistura contendo maltodextrina e inulina (1:1). As partículas produzidas foram estocadas em diferentes temperaturas (7 e 35 ºC) e avaliadas em relação à contagem de células viáveis, compostos fenólicos totais e capacidade antioxidante, ao longo de 180 dias. As amostras estocadas a 35 ºC apresentaram contagem inferior a 104 UFC/g logo no trigésimo dia de estocagem, enquanto as armazenadas a 7ºC apresentaram contagem superior a 107 UFC/g. O processo de liofilização resultou em maior contagem de micro-organismos ao longo da estocagem. O teor de compostos fenólicos e a capacidade antioxidante mantiveram-se estáveis até 60 dias de estocagem, apresentando um decréscimo mais pronunciado a partir de 120 dias.
650 $aBifidobacterium animalis
650 $amicroencapsulation
653 $aCompostos fenólicos
653 $aMicroencapsulação
700 1 $aTELES, A. S. C.
700 1 $aCOSTA, S. D. de O.
700 1 $aWALTER, E. H. M.
700 1 $aTONON, R. V.
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Embrapa Agroindústria de Alimentos (CTAA) |
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