| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Solos. |
|
Data corrente: |
18/09/2020 |
|
Data da última atualização: |
11/11/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
ARAÚJO, V. L. V. P. de; LIRA JUNIOR, M. A.; SOUZA JÚNIOR, V. S. de; ARAUJO FILHO, J. C. de; FRACETTO, F. J. C.; ANDREOTE, F. D.; PEREIRA, A. P. de A.; MENDES JÚNIOR, J. P.; BARROS, F. M. do R.; FRACETTO, G. G. M. |
|
Afiliação: |
VICTOR LUCAS VIEIRA PRUDÊNCIO DE ARAÚJO, UFRPE; MARIO ANDRADE LIRA JUNIOR, UFRPE; VALDOMIRO SEVERINO DE SOUZA JÚNIOR, UFRPE; JOSE COELHO DE ARAUJO FILHO, CNPS; FELIPE JOSÉ CURY FRACETTO, UFRPE; FERNANDO DINI ANDREOTE, USP/ESALQ; ARTHUR PRUDÊNCIO DE ARAUJO PEREIRA, UFC; JOSÉ PETRÔNIO MENDES JÚNIOR, UFRPE; FELIPE MARTINS DO RÊGO BARROS, USP/ESALQ; GISELLE GOMES MONTEIRO FRACETTO, UFRPE. |
|
Título: |
Bacteria from tropical semiarid temporary ponds promote maize growth under hydric stress. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Microbiological Research, v. 240, 126564, Nov. 2020. |
|
DOI: |
https://doi.org/10.1016/j.micres.2020.126564 |
|
Idioma: |
Inglês |
|
Conteúdo: |
World climate change has triggered soil water stress and imposed limitations on agricultural production. Plant growth-promoting bacteria (PGPBs) have been an efficient strategy to improve the biological supply and growth of plants under distinct abiotic stress conditions. We hypothesized that the soils from a temporary pond may harbor PGPBs with potential strains which increase maize tolerance to water deficit. We studied rhizosphere and bulk soil of Mimosa bimucronata in a temporary pond from semiarid Northeast Brazil to access strains with characteristics to promote plant growth and mitigate abiotic stress for maize crop. We isolated 355 bacterial isolates, from which 96 were selected based on the morphophysiological characterization to assess IAA production (42 % produced over 50 ug mL-1 of IAA), calcium phosphate solubilization (with one isolate achieving medium IS), biofilm and exopolysaccharides production (66 % and 98 % of isolates, respectively). Based on these mechanisms, the 30 most promising bacterial isolates were selected to assess biological nitrogen fixation (74 % of the isolates showed nitrogenase activity greater than 20 C2H4.h-1.mg-1), ACC deaminase activity (80 % of isolates) and growth in medium with reduced water activity (8 % of isolates grew in medium with water activity (Aw) of 0.844). We sequenced the 16S rRNA gene from the seven most promising isolates in in vitro and in vivo assays, which were identified as Staphylococcus edaphicus, Bacillus wiedmannii, Micrococcus yunnanensis, Streptomyces alboflavus, Streptomyces alboflavus, Bacillus wiedmanni and Bacillus cereus. In vivo, eleven isolates and three bacterial consortia did not differ from the control with nutrient solution, for total leaf area and root dry mass of maize. S. alboflavus (BS43) had the best in vivo results, not differing from the control with nutrient solution. We highlight the unpublished potential of Staphylococcus edaphicus and Streptomyces alboflavus in promoting the growth of plants under water stress. In addition, it is the first report of bacteria isolated from a temporary pond in the Brazilian semiarid which promoting plant growth attributes and development. MenosWorld climate change has triggered soil water stress and imposed limitations on agricultural production. Plant growth-promoting bacteria (PGPBs) have been an efficient strategy to improve the biological supply and growth of plants under distinct abiotic stress conditions. We hypothesized that the soils from a temporary pond may harbor PGPBs with potential strains which increase maize tolerance to water deficit. We studied rhizosphere and bulk soil of Mimosa bimucronata in a temporary pond from semiarid Northeast Brazil to access strains with characteristics to promote plant growth and mitigate abiotic stress for maize crop. We isolated 355 bacterial isolates, from which 96 were selected based on the morphophysiological characterization to assess IAA production (42 % produced over 50 ug mL-1 of IAA), calcium phosphate solubilization (with one isolate achieving medium IS), biofilm and exopolysaccharides production (66 % and 98 % of isolates, respectively). Based on these mechanisms, the 30 most promising bacterial isolates were selected to assess biological nitrogen fixation (74 % of the isolates showed nitrogenase activity greater than 20 C2H4.h-1.mg-1), ACC deaminase activity (80 % of isolates) and growth in medium with reduced water activity (8 % of isolates grew in medium with water activity (Aw) of 0.844). We sequenced the 16S rRNA gene from the seven most promising isolates in in vitro and in vivo assays, which were identified as Staphylococcus edaphicus, Bacillus wiedma... Mostrar Tudo |
|
Palavras-Chave: |
Estresse hídrico; PGPBs; Semiárido; Zonas úmidas. |
|
Thesagro: |
Mimosa Bimucronata; Zea Mays. |
|
Thesaurus Nal: |
Semiarid zones; Water stress; Wetlands. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/216109/1/Bacteria-from-tropical-semiarid-temporary-ponds-2020.pdf
|
|
Marc: |
LEADER 03244naa a2200349 a 4500
001 2125023
005 2021-11-11
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.micres.2020.126564$2DOI
100 1 $aARAÚJO, V. L. V. P. de
245 $aBacteria from tropical semiarid temporary ponds promote maize growth under hydric stress.$h[electronic resource]
260 $c2020
520 $aWorld climate change has triggered soil water stress and imposed limitations on agricultural production. Plant growth-promoting bacteria (PGPBs) have been an efficient strategy to improve the biological supply and growth of plants under distinct abiotic stress conditions. We hypothesized that the soils from a temporary pond may harbor PGPBs with potential strains which increase maize tolerance to water deficit. We studied rhizosphere and bulk soil of Mimosa bimucronata in a temporary pond from semiarid Northeast Brazil to access strains with characteristics to promote plant growth and mitigate abiotic stress for maize crop. We isolated 355 bacterial isolates, from which 96 were selected based on the morphophysiological characterization to assess IAA production (42 % produced over 50 ug mL-1 of IAA), calcium phosphate solubilization (with one isolate achieving medium IS), biofilm and exopolysaccharides production (66 % and 98 % of isolates, respectively). Based on these mechanisms, the 30 most promising bacterial isolates were selected to assess biological nitrogen fixation (74 % of the isolates showed nitrogenase activity greater than 20 C2H4.h-1.mg-1), ACC deaminase activity (80 % of isolates) and growth in medium with reduced water activity (8 % of isolates grew in medium with water activity (Aw) of 0.844). We sequenced the 16S rRNA gene from the seven most promising isolates in in vitro and in vivo assays, which were identified as Staphylococcus edaphicus, Bacillus wiedmannii, Micrococcus yunnanensis, Streptomyces alboflavus, Streptomyces alboflavus, Bacillus wiedmanni and Bacillus cereus. In vivo, eleven isolates and three bacterial consortia did not differ from the control with nutrient solution, for total leaf area and root dry mass of maize. S. alboflavus (BS43) had the best in vivo results, not differing from the control with nutrient solution. We highlight the unpublished potential of Staphylococcus edaphicus and Streptomyces alboflavus in promoting the growth of plants under water stress. In addition, it is the first report of bacteria isolated from a temporary pond in the Brazilian semiarid which promoting plant growth attributes and development.
650 $aSemiarid zones
650 $aWater stress
650 $aWetlands
650 $aMimosa Bimucronata
650 $aZea Mays
653 $aEstresse hídrico
653 $aPGPBs
653 $aSemiárido
653 $aZonas úmidas
700 1 $aLIRA JUNIOR, M. A.
700 1 $aSOUZA JÚNIOR, V. S. de
700 1 $aARAUJO FILHO, J. C. de
700 1 $aFRACETTO, F. J. C.
700 1 $aANDREOTE, F. D.
700 1 $aPEREIRA, A. P. de A.
700 1 $aMENDES JÚNIOR, J. P.
700 1 $aBARROS, F. M. do R.
700 1 $aFRACETTO, G. G. M.
773 $tMicrobiological Research$gv. 240, 126564, Nov. 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Solos (CNPS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
|
Data corrente: |
03/04/2020 |
|
Data da última atualização: |
20/04/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
MÉO FILHO, P.; BERNDT, A.; MARCONDES, C. R.; PEDROSO, A. de F.; SAKAMOTO, L. S.; BOAS, D. F. V.; RODRIGUES, P. H. M.; RIVERO, M. J.; BUENO, I. C. S. |
|
Afiliação: |
Paulo Méo?Filho, USP; ALEXANDRE BERNDT, CPPSE; CINTIA RIGHETTI MARCONDES, CPPSE; ANDRE DE FARIA PEDROSO, CPPSE; Leandro S. Sakamoto, USP; Daniella Flavia Vilas Boas, UNEMAT; Paulo H. M. Rodrigues, USP; M. Jordana Rivero, Rothamsted Research; Ives C. S. Bueno, USP. |
|
Título: |
Methane emissions, performance and carcass characteristics of different lines of beef steers reared on pasture and finished in feedlot. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Animals, v. 10, n. 303, 2020. |
|
Páginas: |
15 p. |
|
ISSN: |
2076-2615 |
|
DOI: |
10.3390/ani10020303 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The present study aimed to investigate whether different lines of a composite breed (5/8 Charolais × 3/8 Zebu), formed at different times, and genetically improved, would result in differences in animal performance, enteric methane emissions, and carcass traits. Forty?six Canchim steers (15 months, 280 ± 33 kg liveweight) from three different lines were used: old, new, and their cross. These three breed lines were considered the treatments (arranged in four randomized blocks based on initial liveweight) and were evaluated under grazing and feedlot conditions in relation to the performance and emission of enteric methane. During the grazing period, the new line was found to be superior to the old only in relation to the average daily liveweight gain (0.692 vs. 0.547 kg/day), and with no differences in relation to the cross line (0.692 vs. 0.620). In the feedlot finishing phase, only the average daily liveweight gain was significantly higher in the new line compared to the cross and old line (1.44 vs. 1.32 and 1.23 kg/day). The new and cross lines demonstrated higher dry matter intake when compared to the old line (10.25 and 10.42 vs. 9.11 kg/day), with the crossline Animals 2020, 10, 303 2 of 15 animals demonstrating the best feed conversion. The new line showed higher enteric methane emissions compared to the old line (178 vs. 156 g/day). The line had an effect on the carcass dressing of the animals, with greater fat thickness in carcasses from the new and cross lines than the old line (4.4 and 3.8 vs. 3.2 mm). Canchim cattle selected for improved productive performance characteristics does not guarantee animals with lower methane emissions under grazing conditions; while in feedlots, can lead to increased daily feed consumption, and hence, to higher emissions of methane. MenosThe present study aimed to investigate whether different lines of a composite breed (5/8 Charolais × 3/8 Zebu), formed at different times, and genetically improved, would result in differences in animal performance, enteric methane emissions, and carcass traits. Forty?six Canchim steers (15 months, 280 ± 33 kg liveweight) from three different lines were used: old, new, and their cross. These three breed lines were considered the treatments (arranged in four randomized blocks based on initial liveweight) and were evaluated under grazing and feedlot conditions in relation to the performance and emission of enteric methane. During the grazing period, the new line was found to be superior to the old only in relation to the average daily liveweight gain (0.692 vs. 0.547 kg/day), and with no differences in relation to the cross line (0.692 vs. 0.620). In the feedlot finishing phase, only the average daily liveweight gain was significantly higher in the new line compared to the cross and old line (1.44 vs. 1.32 and 1.23 kg/day). The new and cross lines demonstrated higher dry matter intake when compared to the old line (10.25 and 10.42 vs. 9.11 kg/day), with the crossline Animals 2020, 10, 303 2 of 15 animals demonstrating the best feed conversion. The new line showed higher enteric methane emissions compared to the old line (178 vs. 156 g/day). The line had an effect on the carcass dressing of the animals, with greater fat thickness in carcasses from the new and cross lines than t... Mostrar Tudo |
|
Thesaurus NAL: |
Beef cattle; Genetics; Greenhouse gases; Growth performance; Nutrition. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/212160/1/MethaneEmissionsPerformance.pdf
|
|
Marc: |
LEADER 02707naa a2200313 a 4500
001 2121538
005 2020-04-20
008 2020 bl uuuu u00u1 u #d
022 $a2076-2615
024 7 $a10.3390/ani10020303$2DOI
100 1 $aMÉO FILHO, P.
245 $aMethane emissions, performance and carcass characteristics of different lines of beef steers reared on pasture and finished in feedlot.$h[electronic resource]
260 $c2020
300 $a15 p.
520 $aThe present study aimed to investigate whether different lines of a composite breed (5/8 Charolais × 3/8 Zebu), formed at different times, and genetically improved, would result in differences in animal performance, enteric methane emissions, and carcass traits. Forty?six Canchim steers (15 months, 280 ± 33 kg liveweight) from three different lines were used: old, new, and their cross. These three breed lines were considered the treatments (arranged in four randomized blocks based on initial liveweight) and were evaluated under grazing and feedlot conditions in relation to the performance and emission of enteric methane. During the grazing period, the new line was found to be superior to the old only in relation to the average daily liveweight gain (0.692 vs. 0.547 kg/day), and with no differences in relation to the cross line (0.692 vs. 0.620). In the feedlot finishing phase, only the average daily liveweight gain was significantly higher in the new line compared to the cross and old line (1.44 vs. 1.32 and 1.23 kg/day). The new and cross lines demonstrated higher dry matter intake when compared to the old line (10.25 and 10.42 vs. 9.11 kg/day), with the crossline Animals 2020, 10, 303 2 of 15 animals demonstrating the best feed conversion. The new line showed higher enteric methane emissions compared to the old line (178 vs. 156 g/day). The line had an effect on the carcass dressing of the animals, with greater fat thickness in carcasses from the new and cross lines than the old line (4.4 and 3.8 vs. 3.2 mm). Canchim cattle selected for improved productive performance characteristics does not guarantee animals with lower methane emissions under grazing conditions; while in feedlots, can lead to increased daily feed consumption, and hence, to higher emissions of methane.
650 $aBeef cattle
650 $aGenetics
650 $aGreenhouse gases
650 $aGrowth performance
650 $aNutrition
700 1 $aBERNDT, A.
700 1 $aMARCONDES, C. R.
700 1 $aPEDROSO, A. de F.
700 1 $aSAKAMOTO, L. S.
700 1 $aBOAS, D. F. V.
700 1 $aRODRIGUES, P. H. M.
700 1 $aRIVERO, M. J.
700 1 $aBUENO, I. C. S.
773 $tAnimals$gv. 10, n. 303, 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
