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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 Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
01/03/2023 |
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Data da última atualização: |
01/03/2023 |
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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: |
LACERDA JÚNIOR, G. V.; PASTORE, R. A. A.; DELFORNO, T. P.; CENTURION, V. B.; NORONHA, M. F.; VENTURA, J. P.; SARTORATTO, A.; MELO, I. S. de; OLIVEIRA, V. M. |
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Afiliação: |
GILENO VIEIRA LACERDA JÚNIOR; RENAN A A PASTORE; TIAGO PALLADINO DELFORNO, SENAI; VICTOR BORIN CENTURION, UNIVERSIDADE ESTADUAL DE CAMPINAS; MELLINE FONTES NORONHA, UNIVERSITY OF ILLINOIS; JOÃO PAULO VENTURA, UNIVERSIDADE DE SÃO PAULO; ADILSON SARTORATTO, UNIVERSIDADE ESTADUAL DE CAMPINAS; ITAMAR SOARES DE MELO, CNPMA; VALÉRIA M OLIVEIRA. |
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Título: |
Taxonomic and functional dynamics of the soil microbiome from a tropical dry forest in kraft lignin-amended microcosms. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Applied Soil Ecology, V. 183, article 104766, 2023. |
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ISSN: |
0929-1393 |
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DOI: |
https://doi.org/10.1016/j.apsoil.2022.104766 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The Caatinga, a Brazilian dry tropical forest that sheds its leaves seasonally, harbors diverse lignocellulose-degrading microbes as a valuable source of lignin-modifying enzymes useful for the chemical and biofuel industry. Nonetheless, the detailed process of lignin decomposition in soils is still poorly understood due to most studies focusing on the biodegradation of non-ligninolytic components of plant biomass (i.e., cellulose, hemicellulose, and oligosaccharides). Hence, the microbial dynamic was investigated in kraft lignin (KL) amended soil microcosms incubated at 45 °C for 9, 18, and 27 days. The changes in the GC-MS profile indicated rapid and complete biodegradation of lignin-derived compounds (i.e., phenol, guaiacol, paracyclophane, eugenol, benzene, ethisterone, and methadone N-oxide) by the microbial ligninolytic systems. Metabarcoding analyses showed that species richness (Chao 1 index from 14313,6 ± 338 to 7230,4 ± 1056) and diversity (H' index from 7,9 ± 0,05 to 5,6 ± 0,6) decreased in response to KL addition. However, the bacterial diversity was stabilized from the 18th to the 27th day, shaping a soil bacterial community dominated by members of the Proteobacteria (Bordetella and Roseomonas), Firmicutes (Bacillus, Pullulanibacillus, Lysinibacillus, Cohnela, and Ornithinibacilus), and Actinobacteria (Isoptericola, Saccharomonospora, and Beutenbergia) phyla, some of which have not yet been reported as able to degrade lignin. Although the KL addition has promoted the extinction of microbial taxa, the co-occurrence networks reveal high modularity values (0.92) of the microbial structure in the 18th and 27th days of KL-amended soil microcosms, indicating metabolic plasticity even with the ecological disturbance. Some individual taxa clustering into more distinct modules might be explained by the emergence of new ecological niches resulting from the heterogeneous features of KL. Metagenome-based evidence suggests that key bacterial (Bordetella and Streptomyces), and fungal (Aspergillus) members may play synergistic ecophysiological roles in decomposing lignin-derived compounds by carrying the most genes encoding lignin-modifying enzymes belonging to the auxiliary activity (AA) family. The great increase of Aspergillus-affiliated genes of the AA9 family (log ratio of 1.46), which includes the copper-dependent lytic polysaccharide monooxygenases (LPMOs), suggests a key role in lignin-derived compounds degradation. Overall, the insights gathered herein reveal the microbial dynamics of a tropical dry forest soil in kraft lignin-amended microcosms and open perspectives for a rational exploration of potentially novel enzymes and microbial candidates for biotechnological applications. MenosAbstract: The Caatinga, a Brazilian dry tropical forest that sheds its leaves seasonally, harbors diverse lignocellulose-degrading microbes as a valuable source of lignin-modifying enzymes useful for the chemical and biofuel industry. Nonetheless, the detailed process of lignin decomposition in soils is still poorly understood due to most studies focusing on the biodegradation of non-ligninolytic components of plant biomass (i.e., cellulose, hemicellulose, and oligosaccharides). Hence, the microbial dynamic was investigated in kraft lignin (KL) amended soil microcosms incubated at 45 °C for 9, 18, and 27 days. The changes in the GC-MS profile indicated rapid and complete biodegradation of lignin-derived compounds (i.e., phenol, guaiacol, paracyclophane, eugenol, benzene, ethisterone, and methadone N-oxide) by the microbial ligninolytic systems. Metabarcoding analyses showed that species richness (Chao 1 index from 14313,6 ± 338 to 7230,4 ± 1056) and diversity (H' index from 7,9 ± 0,05 to 5,6 ± 0,6) decreased in response to KL addition. However, the bacterial diversity was stabilized from the 18th to the 27th day, shaping a soil bacterial community dominated by members of the Proteobacteria (Bordetella and Roseomonas), Firmicutes (Bacillus, Pullulanibacillus, Lysinibacillus, Cohnela, and Ornithinibacilus), and Actinobacteria (Isoptericola, Saccharomonospora, and Beutenbergia) phyla, some of which have not yet been reported as able to degrade lignin. Although the KL addition h... Mostrar Tudo |
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Thesagro: |
Biodegradação; Caatinga; Floresta Tropical; Lignina; Microbiologia do Solo; População Microbiana. |
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Thesaurus NAL: |
Biodegradation; Dry forests; Lignin; Microbiome; Plant communities; Soil microorganisms. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 03895naa a2200385 a 4500
001 2152020
005 2023-03-01
008 2023 bl uuuu u00u1 u #d
022 $a0929-1393
024 7 $ahttps://doi.org/10.1016/j.apsoil.2022.104766$2DOI
100 1 $aLACERDA JÚNIOR, G. V.
245 $aTaxonomic and functional dynamics of the soil microbiome from a tropical dry forest in kraft lignin-amended microcosms.$h[electronic resource]
260 $c2023
520 $aAbstract: The Caatinga, a Brazilian dry tropical forest that sheds its leaves seasonally, harbors diverse lignocellulose-degrading microbes as a valuable source of lignin-modifying enzymes useful for the chemical and biofuel industry. Nonetheless, the detailed process of lignin decomposition in soils is still poorly understood due to most studies focusing on the biodegradation of non-ligninolytic components of plant biomass (i.e., cellulose, hemicellulose, and oligosaccharides). Hence, the microbial dynamic was investigated in kraft lignin (KL) amended soil microcosms incubated at 45 °C for 9, 18, and 27 days. The changes in the GC-MS profile indicated rapid and complete biodegradation of lignin-derived compounds (i.e., phenol, guaiacol, paracyclophane, eugenol, benzene, ethisterone, and methadone N-oxide) by the microbial ligninolytic systems. Metabarcoding analyses showed that species richness (Chao 1 index from 14313,6 ± 338 to 7230,4 ± 1056) and diversity (H' index from 7,9 ± 0,05 to 5,6 ± 0,6) decreased in response to KL addition. However, the bacterial diversity was stabilized from the 18th to the 27th day, shaping a soil bacterial community dominated by members of the Proteobacteria (Bordetella and Roseomonas), Firmicutes (Bacillus, Pullulanibacillus, Lysinibacillus, Cohnela, and Ornithinibacilus), and Actinobacteria (Isoptericola, Saccharomonospora, and Beutenbergia) phyla, some of which have not yet been reported as able to degrade lignin. Although the KL addition has promoted the extinction of microbial taxa, the co-occurrence networks reveal high modularity values (0.92) of the microbial structure in the 18th and 27th days of KL-amended soil microcosms, indicating metabolic plasticity even with the ecological disturbance. Some individual taxa clustering into more distinct modules might be explained by the emergence of new ecological niches resulting from the heterogeneous features of KL. Metagenome-based evidence suggests that key bacterial (Bordetella and Streptomyces), and fungal (Aspergillus) members may play synergistic ecophysiological roles in decomposing lignin-derived compounds by carrying the most genes encoding lignin-modifying enzymes belonging to the auxiliary activity (AA) family. The great increase of Aspergillus-affiliated genes of the AA9 family (log ratio of 1.46), which includes the copper-dependent lytic polysaccharide monooxygenases (LPMOs), suggests a key role in lignin-derived compounds degradation. Overall, the insights gathered herein reveal the microbial dynamics of a tropical dry forest soil in kraft lignin-amended microcosms and open perspectives for a rational exploration of potentially novel enzymes and microbial candidates for biotechnological applications.
650 $aBiodegradation
650 $aDry forests
650 $aLignin
650 $aMicrobiome
650 $aPlant communities
650 $aSoil microorganisms
650 $aBiodegradação
650 $aCaatinga
650 $aFloresta Tropical
650 $aLignina
650 $aMicrobiologia do Solo
650 $aPopulação Microbiana
700 1 $aPASTORE, R. A. A.
700 1 $aDELFORNO, T. P.
700 1 $aCENTURION, V. B.
700 1 $aNORONHA, M. F.
700 1 $aVENTURA, J. P.
700 1 $aSARTORATTO, A.
700 1 $aMELO, I. S. de
700 1 $aOLIVEIRA, V. M.
773 $tApplied Soil Ecology, V. 183, article 104766, 2023.
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