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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Unidades Centrais. |
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Data corrente: |
11/06/2002 |
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Data da última atualização: |
29/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEREIRA, P. A. A.; OLIVER, A.; BLISS, F. A.; CROWE, L.; CROWE, J. |
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Afiliação: |
PEDRO ANTONIO ARRAES PEREIRA, CNPAF; ANN OLIVER, UNIVERSITY OF CALIFORNIA; FREDRICK ALLEN BLISS, UNIVERSITY OF CALIFORNIA; LOIS CROWE, UNIVERSITY OF CALIFORNIA; JOHN CROWE, UNIVERSITY OF CALIFORNIA. |
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Título: |
Preservation of rhizobia by lyophilization with trehalose. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 37, n. 6, p. 831-839, jun. 2002. |
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DOI: |
https://doi.org/10.1590/S0100-204X2002000600012 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to determine if trehalose can effectively enhance the viability and storage lifetime of Rhizobium tropici and Rhizobium etli after lyophilization as compared to the traditional protective combination of sucrose and peptone. Two strains of bean-nodulating rhizobia were effectively preserved in the lyophilized state by 100 mM trehalose, and survived for at least 12 days, even when stored under non-ideal conditions. Trehalose provided better protection than the sucrose/peptone combination. When protective excipients were introduced inside the cells, strain CFN 42 was more sensitive to the type of additive used than strain CIAT 899, probably because CIAT 899 produces b (1-2) glucan, which may have a protective effect. b (1-2) glucan combined with sucrose protected better than trehalose against leakage from freeze-dried liposomes, but by itself it had no protective capability. There was a high level of unfrozen water associated with the hydrated glucan, in addition to a thermal event at approximately 70oC, corresponding to an observed gel-sol transition in the glucan. These findings may shed light on the mechanism by which the glucan contributes to the protection of dried cells and liposomes, and may lead to further improvements in rhizobial inoculants. |
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Palavras-Chave: |
glucan; inoculation. |
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Thesagro: |
Armazenamento; Inoculante; Rhizobium; Simbiose. |
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Thesaurus Nal: |
Glucans; Inoculation methods; storage; symbiosis. |
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Categoria do assunto: |
--
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/22471/1/pab20_264.pdf
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Marc: |
LEADER 02102naa a2200301 a 4500
001 1212218
005 2022-04-29
008 2002 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S0100-204X2002000600012$2DOI
100 1 $aPEREIRA, P. A. A.
245 $aPreservation of rhizobia by lyophilization with trehalose.
260 $c2002
520 $aThe objective of this study was to determine if trehalose can effectively enhance the viability and storage lifetime of Rhizobium tropici and Rhizobium etli after lyophilization as compared to the traditional protective combination of sucrose and peptone. Two strains of bean-nodulating rhizobia were effectively preserved in the lyophilized state by 100 mM trehalose, and survived for at least 12 days, even when stored under non-ideal conditions. Trehalose provided better protection than the sucrose/peptone combination. When protective excipients were introduced inside the cells, strain CFN 42 was more sensitive to the type of additive used than strain CIAT 899, probably because CIAT 899 produces b (1-2) glucan, which may have a protective effect. b (1-2) glucan combined with sucrose protected better than trehalose against leakage from freeze-dried liposomes, but by itself it had no protective capability. There was a high level of unfrozen water associated with the hydrated glucan, in addition to a thermal event at approximately 70oC, corresponding to an observed gel-sol transition in the glucan. These findings may shed light on the mechanism by which the glucan contributes to the protection of dried cells and liposomes, and may lead to further improvements in rhizobial inoculants.
650 $aGlucans
650 $aInoculation methods
650 $astorage
650 $asymbiosis
650 $aArmazenamento
650 $aInoculante
650 $aRhizobium
650 $aSimbiose
653 $aglucan
653 $ainoculation
700 1 $aOLIVER, A.
700 1 $aBLISS, F. A.
700 1 $aCROWE, L.
700 1 $aCROWE, J.
773 $tPesquisa Agropecuária Brasileira$gv. 37, n. 6, p. 831-839, jun. 2002.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Origem |
Tipo/Formato |
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Cutter |
Registro |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas; Embrapa Unidades Centrais. |
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Data corrente: |
27/08/2020 |
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Data da última atualização: |
28/08/2020 |
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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: |
TRICHES, G. P.; MORAES, A. de; PORFIRIO-DA-SILVA, V.; LANG, C. R.; LUSTOSA, S. B. C.; BONATTO, R. A. |
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Afiliação: |
GILMAR PAULINHO TRICHES, Instituto Federal Catarinense, Campus Rio do Sul; ANÍBAL de MORAES, Universidade Federal do Paraná, Departamento de Fitotecnia e Fitossanitarismo; VANDERLEY PORFIRIO DA SILVA, CNPF; CLAUDETE REISDORFER LANG, Universidade Federal do Paraná, Departamento de Fitotecnia e Fitossanitarismo; SEBASTIÃO BRASIL CAMPOS LUSTOSA, Universidade Estadual do Centro-Oeste, Guarapuava, PR; RAFAEL ARAÚJO BONATTO, Universidade Federal do Paraná, Departamento de Fitotecnia e Fitossanitarismo. |
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Título: |
Damage caused by cattle to Eucalyptus benthamii trees in pruned and unpruned silvopastoral systems. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 55, e01275, 2020. |
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DOI: |
https://doi.org/10.1590/S1678-3921. pab2020.v55.01275. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Danos causados por bovinos a Eucalyptus benthamii, com ou sem desrama, em sistemas silvipastoris. |
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Conteúdo: |
Abstract ? The objective of this work was to evaluate the effect of tree pruning on the incidence and intensity of the damages caused by cattle to 26-monthold Eucalyptus benthamii, in a silvopastoral system, in the municipality of Pinhais, in the state Paraná, Brazil. The experiment was performed in a randomized complete block design, with two treatments ? livestock and forest with pruned eucalyptus (WP), and livestock and forest with unpruned eucalyptus (UP) ? and three replicates, characterizing six types of damages and five damage intensities. There were significant differences between the WP and UP treatments for the different types of damages. Cattle entry in the silvopastoral system at 26 months after the planting of eucalyptus causes lowintensity damages to the trees, in the treatment with pruning, and mediumintensity damages to the trees in the treatment without pruning. Damages of stronger intensities were detected in the UP treatment, in which classtwo damages (d2 = average damage) were verified in approximately 91% of the trees. The silvicultural practice of pruning E. benthamii trees does not affect the diameter at breast height or the total height of trees. Pruning can be recommended, as it does not affect tree development; moreover, this practice enables the production of knot-free, better-quality wood.
Resumo ? O objetivo deste trabalho foi avaliar o efeito da desrama sobre a incidência e intensidade de danos causados por bovinos a Eucalyptus benthamii aos 26 meses de idade, no município de Pinhais, no estado do Paraná, Brasil. O experimento foi feito em um delineamento de blocos ao acaso, com dois tratamentos ? pecuária-floresta com eucaliptos desramados (WP) e pecuária-floresta com eucaliptos sem desrama (UP) ? e três repetições, que caracterizaram seis tipos de danos e cinco intensidades. Houve diferenças significativas entre os tratamentos WP e UP para os diferentes tipos de danos. A entrada de bovinos no sistema silvipastoril, 26 meses após o plantio de eucalipto, causa danos de baixa intensidade às árvores, no tratamento com desrama, e danos de média intensidade às árvores no tratamento sem desrama. Danos de maiores intensidades foram registrados no tratamento UP, em que o dano de classe dois (d2 = dano médio) foi verificado em aproximadamente 91% das árvores. A prática silvicultural de desrama das árvores de E. benthamii não afeta o diâmetro à altura do peito nem a altura total das árvores. A desrama pode ser recomendada, já que não influencia o desenvolvimento das árvores; além disso, essa prática possibilita a produção de madeira sem nós, de melhor qualidade. MenosAbstract ? The objective of this work was to evaluate the effect of tree pruning on the incidence and intensity of the damages caused by cattle to 26-monthold Eucalyptus benthamii, in a silvopastoral system, in the municipality of Pinhais, in the state Paraná, Brazil. The experiment was performed in a randomized complete block design, with two treatments ? livestock and forest with pruned eucalyptus (WP), and livestock and forest with unpruned eucalyptus (UP) ? and three replicates, characterizing six types of damages and five damage intensities. There were significant differences between the WP and UP treatments for the different types of damages. Cattle entry in the silvopastoral system at 26 months after the planting of eucalyptus causes lowintensity damages to the trees, in the treatment with pruning, and mediumintensity damages to the trees in the treatment without pruning. Damages of stronger intensities were detected in the UP treatment, in which classtwo damages (d2 = average damage) were verified in approximately 91% of the trees. The silvicultural practice of pruning E. benthamii trees does not affect the diameter at breast height or the total height of trees. Pruning can be recommended, as it does not affect tree development; moreover, this practice enables the production of knot-free, better-quality wood.
Resumo ? O objetivo deste trabalho foi avaliar o efeito da desrama sobre a incidência e intensidade de danos causados por bovinos a Eucalyptus benthamii aos 2... Mostrar Tudo |
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Palavras-Chave: |
Sistema silvipastoril. |
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Thesagro: |
Bovino; Eucalipto; Floresta; Madeira; Silvicultura. |
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Thesaurus NAL: |
Cattle; Eucalyptus benthamii; Forestry; Livestock; Silvopastoral systems; Trees; Wood. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/215615/1/Damage-caused-cattle.pdf
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Marc: |
LEADER 03796naa a2200361 a 4500
001 2124610
005 2020-08-28
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S1678-3921. pab2020.v55.01275.$2DOI
100 1 $aTRICHES, G. P.
245 $aDamage caused by cattle to Eucalyptus benthamii trees in pruned and unpruned silvopastoral systems.$h[electronic resource]
260 $c2020
500 $aTítulo em português: Danos causados por bovinos a Eucalyptus benthamii, com ou sem desrama, em sistemas silvipastoris.
520 $aAbstract ? The objective of this work was to evaluate the effect of tree pruning on the incidence and intensity of the damages caused by cattle to 26-monthold Eucalyptus benthamii, in a silvopastoral system, in the municipality of Pinhais, in the state Paraná, Brazil. The experiment was performed in a randomized complete block design, with two treatments ? livestock and forest with pruned eucalyptus (WP), and livestock and forest with unpruned eucalyptus (UP) ? and three replicates, characterizing six types of damages and five damage intensities. There were significant differences between the WP and UP treatments for the different types of damages. Cattle entry in the silvopastoral system at 26 months after the planting of eucalyptus causes lowintensity damages to the trees, in the treatment with pruning, and mediumintensity damages to the trees in the treatment without pruning. Damages of stronger intensities were detected in the UP treatment, in which classtwo damages (d2 = average damage) were verified in approximately 91% of the trees. The silvicultural practice of pruning E. benthamii trees does not affect the diameter at breast height or the total height of trees. Pruning can be recommended, as it does not affect tree development; moreover, this practice enables the production of knot-free, better-quality wood. Resumo ? O objetivo deste trabalho foi avaliar o efeito da desrama sobre a incidência e intensidade de danos causados por bovinos a Eucalyptus benthamii aos 26 meses de idade, no município de Pinhais, no estado do Paraná, Brasil. O experimento foi feito em um delineamento de blocos ao acaso, com dois tratamentos ? pecuária-floresta com eucaliptos desramados (WP) e pecuária-floresta com eucaliptos sem desrama (UP) ? e três repetições, que caracterizaram seis tipos de danos e cinco intensidades. Houve diferenças significativas entre os tratamentos WP e UP para os diferentes tipos de danos. A entrada de bovinos no sistema silvipastoril, 26 meses após o plantio de eucalipto, causa danos de baixa intensidade às árvores, no tratamento com desrama, e danos de média intensidade às árvores no tratamento sem desrama. Danos de maiores intensidades foram registrados no tratamento UP, em que o dano de classe dois (d2 = dano médio) foi verificado em aproximadamente 91% das árvores. A prática silvicultural de desrama das árvores de E. benthamii não afeta o diâmetro à altura do peito nem a altura total das árvores. A desrama pode ser recomendada, já que não influencia o desenvolvimento das árvores; além disso, essa prática possibilita a produção de madeira sem nós, de melhor qualidade.
650 $aCattle
650 $aEucalyptus benthamii
650 $aForestry
650 $aLivestock
650 $aSilvopastoral systems
650 $aTrees
650 $aWood
650 $aBovino
650 $aEucalipto
650 $aFloresta
650 $aMadeira
650 $aSilvicultura
653 $aSistema silvipastoril
700 1 $aMORAES, A. de
700 1 $aPORFIRIO-DA-SILVA, V.
700 1 $aLANG, C. R.
700 1 $aLUSTOSA, S. B. C.
700 1 $aBONATTO, R. A.
773 $tPesquisa Agropecuária Brasileira$gv. 55, e01275, 2020.
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Registro original: |
Embrapa Florestas (CNPF) |
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