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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
20/10/2016 |
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Data da última atualização: |
16/11/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
COSTA, F. de S.; SALES, M. F. L.; FREITAS, A. C. R. de; SOUZA, C. P. de. |
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Afiliação: |
FALBERNI DE SOUZA COSTA, CPAF-Acre; MAYKEL FRANKLIM LIMA SALES, CPAF-Acre; ANTONIO CARLOS REIS DE FREITAS, CPACP; Cleberson Pereira de Souza, Universidade Federal do Acre. |
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Título: |
Modeling nitrous oxide emissions in grass and grass-legume pastures in the western Brazilian Amazon. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: SIMPÓSIO INTERNACIONAL SOBRE GASES DE EFEITO ESTUFA NA AGROPECUÁRIA, 2. 2016, Campo Grande, MS. Anais... Campo Grande: Embrapa Gado de Corte, 2016. |
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Páginas: |
3 p. |
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Idioma: |
Inglês |
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Notas: |
Coordenação: Roberto Giolo de Almeida. |
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Conteúdo: |
Mineral nitrogen (N) dynamics in soil and the exchange of N gaseous in the interface soil-atmosphere are intimately associated with animal manure in pastures. According to soil inorganic-N pools and the site studied, forest or pasture, and pastures age the soil inorganic-N pools of ammonium and nitrate can be similar in the forest or ammonium dominated in the pasture. Also annual average net nitrification rates at soil surface in forest can be higher than in pasture suggesting a higher potential for nitrate-N losses either through leaching or gaseous emissions from intact forests compared with established pastures (NEILL et al., 1995). |
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Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Amendoim forrageiro; Arachis pintoi cv BRS Mandobi; Cacahuetes forrajeros; Emissão de óxido nitroso; Esterco animal; Fazenda Guaxupé; Forage peanut; Óxido nitroso; Western Amazon. |
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Thesagro: |
Brachiaria Humidicola; Efeito Estufa; Gramínea Forrageira; Leguminosa Forrageira; Nitrificação; Pastagem; Solo. |
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Thesaurus Nal: |
Forage grasses; Forage legumes; Greenhouse effect; Nitrous oxide; Pastures; Soil; Urochloa humidicola. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/149043/1/26155.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/150834/1/26210.pdf
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Marc: |
LEADER 02142nam a2200481 a 4500
001 2055097
005 2023-11-16
008 2016 bl uuuu u00u1 u #d
100 1 $aCOSTA, F. de S.
245 $aModeling nitrous oxide emissions in grass and grass-legume pastures in the western Brazilian Amazon.$h[electronic resource]
260 $aIn: SIMPÓSIO INTERNACIONAL SOBRE GASES DE EFEITO ESTUFA NA AGROPECUÁRIA, 2. 2016, Campo Grande, MS. Anais... Campo Grande: Embrapa Gado de Corte$c2016
300 $a3 p.
500 $aCoordenação: Roberto Giolo de Almeida.
520 $aMineral nitrogen (N) dynamics in soil and the exchange of N gaseous in the interface soil-atmosphere are intimately associated with animal manure in pastures. According to soil inorganic-N pools and the site studied, forest or pasture, and pastures age the soil inorganic-N pools of ammonium and nitrate can be similar in the forest or ammonium dominated in the pasture. Also annual average net nitrification rates at soil surface in forest can be higher than in pasture suggesting a higher potential for nitrate-N losses either through leaching or gaseous emissions from intact forests compared with established pastures (NEILL et al., 1995).
650 $aForage grasses
650 $aForage legumes
650 $aGreenhouse effect
650 $aNitrous oxide
650 $aPastures
650 $aSoil
650 $aUrochloa humidicola
650 $aBrachiaria Humidicola
650 $aEfeito Estufa
650 $aGramínea Forrageira
650 $aLeguminosa Forrageira
650 $aNitrificação
650 $aPastagem
650 $aSolo
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aAmendoim forrageiro
653 $aArachis pintoi cv BRS Mandobi
653 $aCacahuetes forrajeros
653 $aEmissão de óxido nitroso
653 $aEsterco animal
653 $aFazenda Guaxupé
653 $aForage peanut
653 $aÓxido nitroso
653 $aWestern Amazon
700 1 $aSALES, M. F. L.
700 1 $aFREITAS, A. C. R. de
700 1 $aSOUZA, C. P. de
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Registro original: |
Embrapa Acre (CPAF-AC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
05/09/1994 |
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Data da última atualização: |
05/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ARAUJO, R. S.; ROBLETO, E. A.; HANDELSMAN, J. |
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Afiliação: |
RICARDO SILVA ARAUJO, CNPAF; EDUARDO A. ROBLETO; JO HANDELSMAN. |
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Título: |
A hydrophobic mutant of Rhizobium etli altered in nodulation competitiveness and growth in the rhizosphere. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Applied and Environmental Microbiology, v. 60, n. 5, p. 1430-1436, May 1994. |
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DOI: |
https://doi.org/10.1128/aem.60.5.1430-1436.1994 |
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Idioma: |
Inglês |
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Conteúdo: |
We isolated and characterized CE3003, a Tn5-induced mutant with altered colony morphology derived from Rhizobium etli CE3. CE3003 produced domed colonies and was highly hydrophobic as indicated by its ability to partition into hexadecane, whereas its parent produced flat colonies and was hydrophilic. On bean plants, CE3003 induced nodules and reduced acetylene. CE3003 and CE3 grew at similar rates when they were grown separately or together in culture medium or inoculated singly onto bean seeds. However, when they were mixed at a 1:1 ratio and applied to seeds, CE3003 achieved significantly lower populations than CE3 in the rhizosphere. Five days after coinoculation of CE3 and CE3003, the population of the mutant was less than 10% of the population of CE3 in the bean rhizosphere. To determine the nodulation competitiveness of the mutant, it was coinoculated with CE3 at various ratios at planting, and the ratio of the nodules occupied by each strain was determined 21 days later. A 17,000-fold excess of CE3003 in mixed inocula was required to obtain equal nodule occupancy by the two strains. A genomic library of strain CE3 was mobilized into CE3003, and we identified a cosmid, pRA3003, that restored the parental colony morphology and hydrophilicity to the mutant. Restoration of the parental colony morphology was accompanied by recovery of the ability to grow competitively in the rhizosphere and to compete for nodulation of beans. The data show an association between cell surface hydrophobicity, nodulation competitiveness, and competitive growth in the rhizosphere in mutant CE3003. MenosWe isolated and characterized CE3003, a Tn5-induced mutant with altered colony morphology derived from Rhizobium etli CE3. CE3003 produced domed colonies and was highly hydrophobic as indicated by its ability to partition into hexadecane, whereas its parent produced flat colonies and was hydrophilic. On bean plants, CE3003 induced nodules and reduced acetylene. CE3003 and CE3 grew at similar rates when they were grown separately or together in culture medium or inoculated singly onto bean seeds. However, when they were mixed at a 1:1 ratio and applied to seeds, CE3003 achieved significantly lower populations than CE3 in the rhizosphere. Five days after coinoculation of CE3 and CE3003, the population of the mutant was less than 10% of the population of CE3 in the bean rhizosphere. To determine the nodulation competitiveness of the mutant, it was coinoculated with CE3 at various ratios at planting, and the ratio of the nodules occupied by each strain was determined 21 days later. A 17,000-fold excess of CE3003 in mixed inocula was required to obtain equal nodule occupancy by the two strains. A genomic library of strain CE3 was mobilized into CE3003, and we identified a cosmid, pRA3003, that restored the parental colony morphology and hydrophilicity to the mutant. Restoration of the parental colony morphology was accompanied by recovery of the ability to grow competitively in the rhizosphere and to compete for nodulation of beans. The data show an association between cell surfa... Mostrar Tudo |
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Palavras-Chave: |
Hydrophobic; Mutant; PTCA. |
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Thesagro: |
Bactéria; Mutante; Nodulação; Rhizobium. |
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Thesaurus NAL: |
nodulation; Rhizobium etli; rhizosphere. |
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Categoria do assunto: |
B Sociologia Rural |
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Marc: |
LEADER 02428naa a2200277 a 4500
001 1196158
005 2021-10-05
008 1994 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1128/aem.60.5.1430-1436.1994$2DOI
100 1 $aARAUJO, R. S.
245 $aA hydrophobic mutant of Rhizobium etli altered in nodulation competitiveness and growth in the rhizosphere.$h[electronic resource]
260 $c1994
520 $aWe isolated and characterized CE3003, a Tn5-induced mutant with altered colony morphology derived from Rhizobium etli CE3. CE3003 produced domed colonies and was highly hydrophobic as indicated by its ability to partition into hexadecane, whereas its parent produced flat colonies and was hydrophilic. On bean plants, CE3003 induced nodules and reduced acetylene. CE3003 and CE3 grew at similar rates when they were grown separately or together in culture medium or inoculated singly onto bean seeds. However, when they were mixed at a 1:1 ratio and applied to seeds, CE3003 achieved significantly lower populations than CE3 in the rhizosphere. Five days after coinoculation of CE3 and CE3003, the population of the mutant was less than 10% of the population of CE3 in the bean rhizosphere. To determine the nodulation competitiveness of the mutant, it was coinoculated with CE3 at various ratios at planting, and the ratio of the nodules occupied by each strain was determined 21 days later. A 17,000-fold excess of CE3003 in mixed inocula was required to obtain equal nodule occupancy by the two strains. A genomic library of strain CE3 was mobilized into CE3003, and we identified a cosmid, pRA3003, that restored the parental colony morphology and hydrophilicity to the mutant. Restoration of the parental colony morphology was accompanied by recovery of the ability to grow competitively in the rhizosphere and to compete for nodulation of beans. The data show an association between cell surface hydrophobicity, nodulation competitiveness, and competitive growth in the rhizosphere in mutant CE3003.
650 $anodulation
650 $aRhizobium etli
650 $arhizosphere
650 $aBactéria
650 $aMutante
650 $aNodulação
650 $aRhizobium
653 $aHydrophobic
653 $aMutant
653 $aPTCA
700 1 $aROBLETO, E. A.
700 1 $aHANDELSMAN, J.
773 $tApplied and Environmental Microbiology$gv. 60, n. 5, p. 1430-1436, May 1994.
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