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Registros recuperados: 33
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Antagonism of Serratia marcescens towards Phytophthora parasitica and its effects in promoting the growth of citrus BJM
Queiroz,Brigida Pimentel Villar de; Melo,Itamar Soares de.
Phytophthora parasitica causes serious widespread, and difficult-to-control root rots in warmer regions. This oomycete is one of the most important pathogen of citrus. This paper reports the biological control of the pathogen by a strain of Serratia marcescens R-35, isolated from citrus rhizosphere. In greenhouse trials, the bacterium suppressed more than 50% of the disease and promoted the plant growth.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological control; Rhizobacteria; Plant growth promotion.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400008
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Antagonismo direto e biocontrole da podridão-mole-do-tomateiro pelo uso de procariotas. Repositório Alice
BARRA, V.R.; ROMEIRO, R. da S.; GARCIA, F.A. de O.; MOURA, A.B.; SILVA, H.S.A.; MENDONÇA, H.L.; HALFELD-VIEIRA, B. de A..
O objetivo deste trabalho foi avaliar procariotas quanto ao potencial de antagonismo direto para o biocontrole da podridão-mole-do-tomateiro (Pectobacterium carotovorum subsp. carotovorum). Avaliaram-se 45 isolados bacterianos pelo teste de antibiose contra o patógeno. Foram feitos dois ensaios em que sementes de tomate (Lycopersicon esculentum Mill.) cv. Santa Clara foram infectadas com isolados antagônicos. As mudas foram transplantadas para solos infestados com suspensões de propágulos P. carotovorum com OD540 de 0,45 e 0,65. Os antagonistas UFV-0005, UFV-043, UFV-BF112 e UFV-0006 foram eficientes em proteger plantas de tomateiro contra a podridão-mole.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Lycopersicon esculentum; Pectobacterium carotovorum subsp; Carotovorum; Antibiose; Controle biológico; Rizobactérias; Antibiosis; Biological control; Rhizobacteria.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/125779
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Bacteria in combination with fertilizers promote root and shoot growth of maize in saline-sodic soil BJM
Zafar-ul-Hye,Muhammad; Farooq,Hafiz Muhammad; Hussain,Mubshar.
Salinity is the leading abiotic stress hampering maize (Zea maysL.) growth throughout the world, especially in Pakistan. During salinity stress, the endogenous ethylene level in plants increases, which retards proper root growth and consequent shoot growth of the plants. However, certain bacteria contain the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase, which converts 1-aminocyclopropane-1-carboxylic acid (an immediate precursor of ethylene biosynthesis in higher plants) into ammonia and α-ketobutyrate instead of ethylene. In the present study, two Pseudomonas bacterial strains containing ACC-deaminase were tested separately and in combinations with mineral fertilizers to determine their potential to minimize/undo the effects of salinity on...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Maize; ACC-deaminase; Rhizobacteria; Salinity.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100097
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Bacterial selection for biological control of plant disease: criterion determination and validation. Repositório Alice
MOTA, M. S.; GOMES, C. B.; SOUZA JÚNIOR, I. T.; MOURA, A. B..
This study aimed to evaluate the biocontrol potential of bacteria isolated from different plant species and soils. The production of compounds related to phytopathogen biocontrol and/or promotion of plant growth in bacterial isolates was evaluated by measuring the production of antimicrobial compounds (ammonia and antibiosis) and hydrolytic enzymes (amylases, lipases, proteases, and chitinases) and phosphate solubilization. Of the 1219 bacterial isolates, 92% produced one or more of the eight compounds evaluated, but only 1% of the isolates produced all the compounds. Proteolytic activity was most frequently observed among the bacterial isolates. Among the compounds which often determine the success of biocontrol, 43% produced compounds which inhibit...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Rizobactéria; Rhizobacteria; Obligate parasites; Perennial plants; Doença de Planta; Antibiosis; Mesocriconema xenoplax.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1119793
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Bacterial selection for biological control of plant disease: criterion determination and validation BJM
Mota,Monalize Salete; Gomes,Cesar Bauer; Souza Júnior,Ismail Teodoro; Moura,Andréa Bittencourt.
Abstract This study aimed to evaluate the biocontrol potential of bacteria isolated from different plant species and soils. The production of compounds related to phytopathogen biocontrol and/or promotion of plant growth in bacterial isolates was evaluated by measuring the production of antimicrobial compounds (ammonia and antibiosis) and hydrolytic enzymes (amylases, lipases, proteases, and chitinases) and phosphate solubilization. Of the 1219 bacterial isolates, 92% produced one or more of the eight compounds evaluated, but only 1% of the isolates produced all the compounds. Proteolytic activity was most frequently observed among the bacterial isolates. Among the compounds which often determine the success of biocontrol, 43% produced compounds which...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rhizobacteria; Antibiosis; Mesocriconema xenoplax; Obligate parasites; Perennial plants.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000100062
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Bacterial selection for biological control of plantdisease: criterion determination and validation. Repositório Alice
MOTA, M. S.; GOMES, C. B.; SOUZA JÚNIOR, I. T.; MOURA, A. B..
bitstream/item/210013/1/1517-8382-bjm-48-01-0062.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Rhizobacteria; Perennial plantsa; Obligate parasites; Mesocriconema xenoplax; Antibiosis.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1060344
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Biological control of potato black scurf by rhizosphere associated bacteria BJM
Tariq,Mohsin; Yasmin,Sumera; Hafeez,Fauzia Y..
The present work was carried out to study the potential of plant rhizosphere associated bacteria for the biocontrol of potato black scurf disease caused by Rhizoctonia solani Khun AG-3. A total of twenty-eight bacteria isolated from diseased and healthy potato plants grown in the soil of Naran and Faisalabad, Pakistan were evaluated for their antagonistic potential. Nine bacterial strains were found to be antagonistic in vitro, reduced the fungal growth and caused the lysis of sclerotia of R. solani in dual culture assay as well as in extracellular metabolite efficacy test. The selected antagonistic strains were further tested for the production and efficacy of volatile and diffusible antibiotics, lytic enzymes and siderophores against R. solani. Selected...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biological control; Potato black scurf; Rhizobacteria; Pseudomonas; Rhizoctonia solani.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200026
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Caenorhabditis elegans as an indicator of toxicity of Bacillus thuringiensis strains to Meloidogyne incognita race 3. Repositório Alice
MONTALVÃO, S. C. L.; CASTRO, M. T. de; SOARES, C. M. S.; BLUM, L. E. B.; PONTES, R. G. M. S. de.
bitstream/item/181714/1/1678-4596-cr-48-07-e20170712.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Biocontrol; Phytonematode; Root-knot nematode; Rhizobacteria; Biocontrole; Fitonematoide; Nematoide das galhas; Rizobactérias.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094346
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Caenorhabditis elegans as an indicator of toxicity of Bacillus thuringiensis strains to Meloidogyne incognita race 3 Ciência Rural
Montalvão,Sandro Coelho Linhares; Castro,Marcelo Tavares de; Soares,Carlos Marcelo Silveira; Blum,Luiz Eduardo Bassay; Monnerat,Rose Gomes.
ABSTRACT: The cotton plant (Gossypium hirsutum) is affected by several diseases of economic importance, among them root-knot nematode (Meloidogyne incognita races 3 and 4). Methods to control this disease include the application of nematicides, solarization, deep plowing, crop rotation and use of antagonistic microorganisms. Among species of Bacillus, there are strains that act as bioregulators and antagonists of several pathogens. Tests to identify these strains are hampered by the difficulty of obtaining large populations of the pathogen and by the time of execution of the in vivo tests that should be conducted for about 90 days. The objective of this research was to compare the toxicity of B. thuringiensis strains to two nematodes, M. incognita and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biocontrol; Phytonematode; Root-knot nematode; Rhizobacteria.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700151
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Characterization of Rhizobacteria from field grown Genetically Modified (GM) and non-GM maizes BABT
Bumunang,Emmanuel Wihkochombom; Babalola,Olubukola Oluranti.
This study was done to examine the rhizobacteria from field grown Genetically Modified (GM) maize and its non-GM counterpart. Rhizospheric soil samples were collected at 30 days after sowing (DAS) and at post-harvest from two experimental fields in Gauteng, South Africa. Total rhizobacteria (cfu/g) in GM and non-GM soil samples was not significantly different across the different media 30 DAS and at post-harvest. Rhizobacterial isolates obtained were biochemically characterized using the analytical profile index. Species of Pseudomonas, Aeromonas, Sphingomonas, Burkholderia, Stenotrophomonas, Achromobacter, Ewingella and Bacillus were screened in vitro for plant growth promoting traits such as, ammonia production, catalase activity, indole acetic acid...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetically modified maize; Plant growth promoting traits; Rhizosphere; Rhizobacteria.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000100001
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Co-inoculation with Azospirillum brasilense in soybean cultivars subjected to water déficit AGRIAMBI
Naoe,Alessandra M. de L.; Peluzio,Joênes M.; Campos,Leonardo J. M.; Naoe,Lucas K.; Silva,Roberta A. e.
ABSTRACT This study aimed to verify the effect of co-inoculation, association between Azospirillum brasilense and Bradyrhizobium japonicum bacteria, on soybean plants subjected to water deficit at two sowing dates. Two field experiments were conducted at the Universidade Federal de Tocantins, campus of Palmas, Brazil, in 2016. The experimental design was randomized blocks in a split-split-plot arrangement with four repetitions, where the plots consisted of two irrigation depths (100 and 25% of crop evapotranspiration - ETc), the subplots was composed of two methods of inoculant application (inoculation with Bradyrhizobium japonicum and co-inoculation with Azospirillum brasilense + Bradyrhizobium japonicum) and the sub-subplots comprised two soybean...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max (L.) Merrill; Rhizobacteria; Water stress; Irrigation.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000200089
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Comparative study of wild and transformed salt tolerant bacterial strains on Triticum aestivum growth under salt stress BJM
Afrasayab,Shazia; Faisal,Muhammad; Hasnain,Shahida.
Eleven salt tolerant bacteria isolated from different sources (soil, plants) and their transformed strains were used to study their influence on Triticum aestivum var. Inqlab-91 growth under salt (100 mM NaCl) stress. Salt stress caused reduction in germination (19.4%), seedling growth (46%) and fresh weight (39%) in non-inoculated plants. In general, both wild and transformed strains stimulated germination, seedling growth and fresh weight in salt free and salt stressed conditions. At 100 mM NaCl, Staphylococcus xylosus ST-1 caused 25% increments in seedling length over respective control. Soluble protein content significantly enhanced (49%) under salt stress as compared to salt free control. At 100 mM NaCl parental strain PT-5 resulted about 32%...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum; Plasmid; Rhizobacteria; Salinity; Auxin; Transformation.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000400013
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Composition and functionality of the wild and cultivated common bean rhizosphere microbiome. Repositório Alice
FLORES, S. W. S.; CHIARAMONTE, J. B.; ROSSMANN, M.; MENDES, R..
Abstract: Plants rely on their rhizosphere microbiome for specific functions, such as, nutrient acquisition and protection against diseases. The domestication and subsequent plant breeding neglected the important role of the rhizosphere microbiome on plant performance. Here, we tested the hypothesis that ancestor materials have higher ability to host beneficial microorganisms in the rhizosphere when compared to modern cultivars. For this, we assessed the composition and functionality of the rhizosphere microbiome associated with a wild (Wild Mex) and with a cultivated (IAC Alvorada) common bean grown in highly biodiverse soil (Amazonian Dark Earth). Antagonistic bacteria were isolated from common bean rhizosphere and total rhizosphere DNA was extracted for...
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Wild common bean; Metagenome; Rhizobacteria; Metagenomics; Microbial communities.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1036667
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Control potential of Meloidogyne javanica and Ditylenchus spp. using fluorescent Pseudomonas and Bacillus spp. Repositório Alice
TURATTO, M. F.; DOURADO, F. dos S.; ZILLI, J. E.; BOTELHO, G. R..
Plant Growth Promoting Rhizobacteria (PGPR) have different mechanisms of action in the development of plants, such as growth promotion, production of phytohormones and antibiotic substances and changes in root exudates. These help to control plant diseases. In order to evaluate the potential of microorganisms in the control of Meloidogyne javanica and Ditylenchus spp., five rhizobacteria isolated from rhizosphere of garlic cultivated in the Curitibanos (SC) region were tested. Hatching chambers were set on Petri dishes, in which were added 10 mL of bacterial suspension and 1 mL of M. javanica eggs suspension, at the rate of 4500, on the filter paper of each chamber. The same procedure was performed with 300 juvenile Ditylenchus spp. The experimental design...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Allium sativum L; Glycine max L Merril; Biocontrol; Rhizobacteria; Plant parasitic nematodes.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1074979
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Control potential of Meloidogyne javanica and Ditylenchus spp. using fluorescent Pseudomonas and Bacillus spp. Repositório Alice
TURATTO, M. F.; DOURADO, F. dos S.; ZILLI, J. E.; BOTELHO, G. R..
Plant Growth Promoting Rhizobacteria (PGPR) have different mechanisms of action in the development of plants, such as growth promotion, production of phytohormones and antibiotic substances and changes in root exudates. These help to control plant diseases. In order to evaluate the potential of microorganisms in the control of Meloidogyne javanica and Ditylenchus spp., five rhizobacteria isolated from rhizosphere of garlic cultivated in the Curitibanos (SC) region were tested. Hatching chambers were set on Petri dishes, in which were added 10 mL of bacterial suspension and 1 mL of M. javanica eggs suspension, at the rate of 4500, on the filter paper of each chamber. The same procedure was performed with 300 juvenile Ditylenchus spp. The experimental design...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Allium sativum L; Glycine max L Merril; Biocontrol; Plant parasitic; Nematodes; Rhizobacteria.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1086733
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Control potential of Meloidogyne javanica and Ditylenchus spp. using fluorescent Pseudomonas and Bacillus spp. BJM
Turatto,Marcielly F.; Dourado,Fernanda dos S.; Zilli,Jerri E.; Botelho,Glória R..
ABSTRACT Plant Growth Promoting Rhizobacteria (PGPR) have different mechanisms of action in the development of plants, such as growth promotion, production of phytohormones and antibiotic substances and changes in root exudates. These help to control plant diseases. In order to evaluate the potential of microorganisms in the control of Meloidogyne javanica and Ditylenchus spp., five rhizobacteria isolated from rhizosphere of garlic cultivated in the Curitibanos (SC) region were tested. Hatching chambers were set on Petri dishes, in which were added 10 mL of bacterial suspension and 1 mL of M. javanica eggs suspension, at the rate of 4500, on the filter paper of each chamber. The same procedure was performed with 300 juvenile Ditylenchus spp. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allium sativum L.; Glycine max (L.) Merril; Biocontrol; Plant parasitic nematodes; Rhizobacteria.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000100054
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Desenvolvimento de cultivares de arroz inoculadas com bactérias promotoras de crescimento de plantas. Repositório Alice
COELHO, L. H.; FERREIRA, E. P. B.; DIDONET, C. C. G. M.; DIDONET, A. D..
O objetivo deste trabalho foi determinar o efeito da inoculação com bactérias promotoras de crescimento no desenvolvimento de diferentes cultivares de arroz.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Arroz; Oryza sativa; Rice; Rhizobacteria; Bactéria; Inoculação.
Ano: 2008 URL: http://www.alice.cnptia.embrapa.br/handle/doc/217432
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Desenvolvimento de cultivares de arroz inoculadas com bactérias promotoras de crescimento de plantas. Repositório Alice
COELHO, L. H.; FERREIRA, E. P. B.; DIDONET, C. C. G. M.; DIDONET, A. D..
2008
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Arroz; Oryza sativa; Rice; Rhizobacteria; Bactéria; Inoculação.
Ano: 2008 URL: http://www.alice.cnptia.embrapa.br/handle/doc/217461
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Effect of water deficit and sowing date on oil and protein contents in soybean co-inoculated with Azospirillum brasilense. Repositório Alice
NAOE, A. M. de L.; PELUZIO, J. M.; CAMPOS, L. J. M.; NAOE, L. K.; REINA, E..
bitstream/item/223747/1/66584-Texto-do-artigo-310088-1-10-20210311.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Estresse abiótico; Rhizobacteria; Rizobactéria; Glycine Max; Rizoma; Bactéria; Abiotic stress.
Ano: 2021 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132290
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Germination potential and vegetative propagation of Aegiphila brachiata Vell. Repositório Alice
MAGGIONI, R. A.; VIEIRA, L. M.; INVERNIZZI, S. F; CARPANEZZI, A. A.; ZUFFELLATO-RIBAS, K. C..
The objective of this study was to evaluate the germination potential of Aegiphila brachiata (peloteiro) and its propagation through stem-cuttings, as well as how the age of parental plants and the application indolebutyric acid (IBA) and inoculant of Azospirillum brasilense influence adventitious rooting of the species. Thus, the physical characterization of a seed lot and a germination test were performed, both with or without seed scarification and at three gibberellin concentrations (0, 50 and 100 mg.L-1 GA3). For stem-cuttings, two experiments were carried out with cuttings, one with young individuals and the other with adult trees. In both experiments, stem-cuttings were submitted to treatments with IBA (0, 1500, 3000 and 6000 mg.L-1) and a solution...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Aegiphila brachiata; Stem cuttings; Indolebutyric acid; Peloteiro; Rhizobacteria; Estaquia; Semente; Propagação Vegetativa; Seeds.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1124544
Registros recuperados: 33
Primeira ... 12 ... Última
 

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