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| Registros recuperados: 14 | |
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| Avozani, Aveline; Tumelero, Andréia Iraci; Baldiga Tonin , Rosane; Denardin, Norimar; Gomes Silva, Abimael; Garcés-Fiallos, Felipe Rafael. |
| O controle químico é o método mais usado no manejo de doenças em grandes culturas como soja e trigo. No entanto, a alguns anos o controle biológico tem ganhado destaque. Assim, avaliou-se o antagonismo das bactérias Pseudomonas fluorencens, Pantoea aglomerans e Bacillus sp. sobre os fitopatógenos Corynespora cassiicola e Drechslera tritici-repentis, isolados previamente de folhas de soja e trigo, respectivamente. O experimento foi realizado em condições controladas, no Laboratório de Fitobacteriologia da Faculdade de Agronomia e Medicina Veterinária (FAMV), Universidade de Passo Fundo (UPF), Rio Grande do Sul, Brasil. Os tratamentos foram: T1: P. fluorencens + patógeno; T2: P. aglomerans + patógeno; T3: Bacillus spp. + patógeno e T4: patógeno (controle).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pseudomonas fluorencens; Pantoea aglomerans; Bacillus sp.; Mycelial growth inhibition; Pseudomonas fluorencens; Pantoea aglomerans; Bacillus sp.; Inibição do crescimento micelial. |
| Ano: 2023 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/7111 |
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| Silva,Krisle da; Nóbrega,Rafaela Simão Abrahão; Lima,Adriana Silva; Barberi,Alexandre; Moreira,Fatima Maria de Souza. |
| Non-symbiotic diazotrophic bacteria are amongst the most important functional groups of soil-dwelling microorganisms. These bacteria contribute to plant growth predominantly through biological N2 fixation. Here, we evaluated the density and diversity of non-symbiotic diazotrophic bacteria in soils taken from diverse land use systems (LUS) in Amazonia using nitrogen-free media. A total of 30 soil samples were collected from the following LUS: pristine forest, young secondary forest, old secondary forest, agroforestry, agriculture and pasture. Bacterial density was evaluated by the most probable number (MPN) method utilizing N-free semi-solid media with varied compositions (JNFb, NFb, LGI and Fam). Individual isolates were characterized by colony and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Burkholderia sp.; Enterobacter sp.; Serratia sp.; Bacillus sp.; Klebsiella sp.. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000500002 |
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| Pacheco-Aguirre,J. Alberto; Ruíz-Sánchez,Esau; Ballina-Gómez,H. Salomón; Alvarado-López,C. Juan. |
| Abstract Various studies have been undertaken to evaluate the effect of polymer-based encapsulation on performance of plant growth promoting microorganism. However there is no systematic analysis about the performance of these microorganisms when encapsulated in a polymer-based matrix. Relevant published papers were retrieved by conducting searches in Google Scholar, Only Library, Science Direct, Springer Journal, Taylor & Francis and Wiley Online Library. An examination of 117 articles was carried out and of those only 11 satisfied our criteria for inclusion into the meta-analysis. From these articles, we selected 41 cases to be evaluated. We used as keywords “microcapsules”, “capsules”, “microorganisms”, “growth”, “promoting”, “germination”... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacillus sp.; Inoculant; Microcapsules; Plant growth; Seed germination. |
| Ano: 2017 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952017000200173 |
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| Siqueira,Célia Lúcia; Pereira,Marlon Cristian Toledo; Nietsche,Silvia; Xavier,Adelica Aparecida; Mendes,Athos Henrique; Xavier,Helisson Robert Araújo; Guimarães,Railton de Souza; Lacerda,Danilo Reis; Santos,Silvânio Rodrigues dos. |
| ABSTRACT Increased planting density, different types of thinning management, and the use of beneficial microorganisms have been adopted as strategic tools in the effort to increase crop yields in a sustainable manner. This investigation evaluated the growth and production of ‘Prata Anã Gorutuba’ banana ( Musa spp., AAB) under different plant densities during two production cycles in the semiarid region of Minas Gerais, Brazil. Micropropagated plantlets were also inoculated with endophytic bacteria and cultivated as part of two mat management strategies. Planting density varied between 1,680 and 3,920 plant ha–1. During the experiment, water was less than optimal because of rationing due to drought in the region. Under field conditions, there was no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp.; Bacillus sp.; Plant growth-promoting bacteria (PGPB); Spacing; Hydric stress. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000100602 |
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| Cordeiro,Carlos Alberto Martins; Martins,Meire Lelis Leal; Luciano,Angélica Bárbara. |
| alpha-amylase (1,4-alpha-D-glucan glucanohydrolase, EC 3.2.1.1) production by thermophilic Bacillus sp strain SMIA-2 cultivated in liquid media containing soluble starch reached a maximum at 48h, with levels of 57U/mL. Studies on the a-amylase characterization revealed that the optimum temperature for activity was 70ºC. The enzyme was stable for 2h at 50ºC, while at 60ºC, 70ºC and 90ºC, 4%, 13% and 38% of the original activities were lost, respectively. The optimum pH of the enzyme was 7.5. After incubation of crude enzyme solution for 24h at pH 7.5, a decrease of about 5% of its original activity was observed. The enzyme was strongly inhibited by Co2+, Cu2+ and Ba2+, but less affected by Ca2+, Mg2+, Ni2+, Sr2+ and Mn2+. The enzyme in 1M and 5M NaCl... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alpha-amylase; Thermophilic bacterium; Bacillus sp.. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000100012 |
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| Registros recuperados: 14 | |
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