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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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Registro Completo |
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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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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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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
19/07/2023 |
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Data da última atualização: |
19/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
ARAÚJO, T. B. de; SCHUELTER, A. R.; SOUZA, I. R. P. de; COELHO, S. R. M.; CHRIST, D. |
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Afiliação: |
TASSIANO BOTESINE DE ARAÚJO, Faculdade Educacional de Medianeira; ADILSON RICKEN SCHUELTER, Unioeste; ISABEL REGINA PRAZERES DE SOUZA, CNPMS; SILVIA RENATA MACHADO COELHO, Universidade Estadual do Oeste do Paraná; DIVAIR CHRIST, Universidade Estadual do Oeste do Paraná. |
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Título: |
Growth promotion in maize inoculated with Trichoderma harzianum. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Revista Brasileira de Milho e Sorgo, v. 22, e1269, 2023. |
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DOI: |
https://doi.org/10.18512/rbms2023v22e1269 |
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Idioma: |
Inglês |
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Conteúdo: |
The current research evaluated the effectiveness of Trichoderma harzianum in promoting the vegetative growth of maize in a medium containing nutrient solution from seed inoculation with different bio-input doses. The experiment was conducted in an agricultural greenhouse containing 8 liters of polyethylene recipients containing sand, using a completely randomized design with five treatments and six replications. The maize hybrid MSG1001 seeds were inoculated with different doses of the commercial product based on T. harzianum for every 100 kg of seeds. The treatments were: T1: 0 ml (control), T2: 200 ml, T3: 400 ml, T4: 600 ml, and T5: 800 ml. Sowing was performed in recipients containing fine-washed sand and capillarity irrigation with nutrient solution until the end of the experiment. At 28 DAP, the following variables were assessed: shoot length (SL), root length (RL), total plant length (TPL), shoot dry mass (SDM), root dry mass (RDM), total dry mass (TDM), total chlorophyll V3 (TCV3), total chlorophyll V4 (TCV4) and stem diameter (SD). The gradual increase in the doses of bio-input based on T. harzianum, up to 800 ml 100 kg-1 of seeds, promoted an increase of 27%, 81%, 40%, 34%, 64%, and 42% in the variables SDM, RDM, TDM, SD, SL, and TPL, respectively. RL, TCV3, and TCV4 increased to doses of 619, 321.6, and 435.6 ml 100 kg-1 of seeds, respectively. Furthermore, a positive correlation was obtained between bio-input dose and the potassium content and expressive differences in the nutrient content of the control concerning the other treatments, which were obtained in the multivariate analysis. Finally, it is concluded that T. harzianum influences the vegetative growth in maize. However, depending on the dose of the bio-input, it can result in different plant responses. MenosThe current research evaluated the effectiveness of Trichoderma harzianum in promoting the vegetative growth of maize in a medium containing nutrient solution from seed inoculation with different bio-input doses. The experiment was conducted in an agricultural greenhouse containing 8 liters of polyethylene recipients containing sand, using a completely randomized design with five treatments and six replications. The maize hybrid MSG1001 seeds were inoculated with different doses of the commercial product based on T. harzianum for every 100 kg of seeds. The treatments were: T1: 0 ml (control), T2: 200 ml, T3: 400 ml, T4: 600 ml, and T5: 800 ml. Sowing was performed in recipients containing fine-washed sand and capillarity irrigation with nutrient solution until the end of the experiment. At 28 DAP, the following variables were assessed: shoot length (SL), root length (RL), total plant length (TPL), shoot dry mass (SDM), root dry mass (RDM), total dry mass (TDM), total chlorophyll V3 (TCV3), total chlorophyll V4 (TCV4) and stem diameter (SD). The gradual increase in the doses of bio-input based on T. harzianum, up to 800 ml 100 kg-1 of seeds, promoted an increase of 27%, 81%, 40%, 34%, 64%, and 42% in the variables SDM, RDM, TDM, SD, SL, and TPL, respectively. RL, TCV3, and TCV4 increased to doses of 619, 321.6, and 435.6 ml 100 kg-1 of seeds, respectively. Furthermore, a positive correlation was obtained between bio-input dose and the potassium content and expressive differen... Mostrar Tudo |
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Palavras-Chave: |
Bioinsumo. |
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Thesagro: |
Biomassa; Crescimento; Milho; Nutriente; Semente. |
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Thesaurus NAL: |
Biomass; Nutrients; Seeds. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1155035/1/Growth-promotion-in-maize-inoculated-with-Trichoderma-harzianum.pdf
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Marc: |
LEADER 02588naa a2200289 a 4500
001 2155035
005 2023-07-19
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.18512/rbms2023v22e1269$2DOI
100 1 $aARAÚJO, T. B. de
245 $aGrowth promotion in maize inoculated with Trichoderma harzianum.$h[electronic resource]
260 $c2023
520 $aThe current research evaluated the effectiveness of Trichoderma harzianum in promoting the vegetative growth of maize in a medium containing nutrient solution from seed inoculation with different bio-input doses. The experiment was conducted in an agricultural greenhouse containing 8 liters of polyethylene recipients containing sand, using a completely randomized design with five treatments and six replications. The maize hybrid MSG1001 seeds were inoculated with different doses of the commercial product based on T. harzianum for every 100 kg of seeds. The treatments were: T1: 0 ml (control), T2: 200 ml, T3: 400 ml, T4: 600 ml, and T5: 800 ml. Sowing was performed in recipients containing fine-washed sand and capillarity irrigation with nutrient solution until the end of the experiment. At 28 DAP, the following variables were assessed: shoot length (SL), root length (RL), total plant length (TPL), shoot dry mass (SDM), root dry mass (RDM), total dry mass (TDM), total chlorophyll V3 (TCV3), total chlorophyll V4 (TCV4) and stem diameter (SD). The gradual increase in the doses of bio-input based on T. harzianum, up to 800 ml 100 kg-1 of seeds, promoted an increase of 27%, 81%, 40%, 34%, 64%, and 42% in the variables SDM, RDM, TDM, SD, SL, and TPL, respectively. RL, TCV3, and TCV4 increased to doses of 619, 321.6, and 435.6 ml 100 kg-1 of seeds, respectively. Furthermore, a positive correlation was obtained between bio-input dose and the potassium content and expressive differences in the nutrient content of the control concerning the other treatments, which were obtained in the multivariate analysis. Finally, it is concluded that T. harzianum influences the vegetative growth in maize. However, depending on the dose of the bio-input, it can result in different plant responses.
650 $aBiomass
650 $aNutrients
650 $aSeeds
650 $aBiomassa
650 $aCrescimento
650 $aMilho
650 $aNutriente
650 $aSemente
653 $aBioinsumo
700 1 $aSCHUELTER, A. R.
700 1 $aSOUZA, I. R. P. de
700 1 $aCOELHO, S. R. M.
700 1 $aCHRIST, D.
773 $tRevista Brasileira de Milho e Sorgo$gv. 22, e1269, 2023.
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