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Ammonium excretion, auxin production and effects of maize inoculation with ethylenediamine-resistant mutants of Pseudomonas sp. Bragantia
Ramos,Luan da Luz; Rodrigues,Elisete Pains; Silva,Mayara Barbosa; Oliveira,Jessica Ellen; Zuluaga,Mónica Yorlady Alzate; Milani,Karina Maria Lima; Oliveira,André Luiz Martinez de.
ABSTRACT Plant growth-promoting bacteria (PGPB) comprise part of plant microbiome of biotechnological interest due to their potential to decrease the use of agrochemicals in agriculture. Among the commonly found PGPB species, the Pseudomonas genus is known for high competitiveness and efficiency in expressing growth-promotion traits. To increase the contribution of diazotrophic Pseudomonas sp. to the plant nitrogen nutrition, the strain AZM-01 was chemically mutagenized with methyl methanesulfonate (MMS), following the selection for resistance to ethylenediamine (EDA). From the 13 EDA-resistant mutant strains selected, four showed increased the ammonium excretion, with the highest value reaching up to 284% increase as compared to the wild strain, and six...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biofertilizer; Plant inoculation; Methyl methanesulphonate; Plant growth-promoting bacteria.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000300415
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Bacterial Compatibility in Combined Inoculations Enhances the Growth of Potato Seedlings OAK
Santiago, Christine D.; Yagi, Shogo; Ijima, Motoaki; Nashimoto, Tomoya; Sawada, Maki; Ikeda, Seishi; Asano, Kenji; Orikasa, Yoshitake; Ohwada, Takuji.
The compatibility of strains is crucial for formulating bioinoculants that promote plant growth. We herein assessed the compatibility of four potential bioinoculants isolated from potato roots and tubers (Sphingomonas sp. T168, Streptomyces sp. R170, Streptomyces sp. R181, and Methylibium sp. R182) that were co-inoculated in order to improve plant growth. We screened these strains using biochemical tests, and the results obtained showed that R170 had the highest potential as a bioinoculant, as indicated by its significant ability to produce plant growth-promoting substances, its higher tolerance against NaCl (2%) and AlCl3 (0.01%), and growth in a wider range of pH values (5.0-10.0) than the other three strains. Therefore, the compatibility of R170 with...
Palavras-chave: Plant growth-promoting bacteria; Plant tissue localization; Combined inoculation; Bacterial compatibility.
Ano: 2017 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4466
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Changes induced by co-inoculation in nitrogen–carbon metabolism in cowpea under salinity stress BJM
Santos,Alexandra de Andrade; Silveira,Joaquim Albenísio Gomes da; Guilherme,Eliezer de Araujo; Bonifacio,Aurenivia; Rodrigues,Artenisa Cerqueira; Figueiredo,Márcia do Vale Barreto.
ABSTRACT To mitigate the deleterious effects of abiotic stress, the use of plant growth-promoting bacteria along with diazotrophic bacteria has been increasing. The objectives of this study were to investigate the key enzymes related to nitrogen and carbon metabolism in the biological nitrogen fixation process and to elucidate the activities of these enzymes by the synergistic interaction between Bradyrhizobium and plant growth-promoting bacteria in the absence and presence of salt stress. Cowpea plants were cultivated under axenic conditions, inoculated with Bradyrhizobium and co-inoculated with Bradyrhizobium sp. and Actinomadura sp., Bradyrhizobium sp. and Bacillus sp., Bradyrhizobium sp. and Paenibacillus graminis, and Bradyrhizobium sp. and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: BNF; Plant growth-promoting bacteria; Glutamine synthetase; Acid invertase; Salinity.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000400685
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Cultivable bacteria isolated from apple trees cultivated under different crop systems: Diversity and antagonistic activity against Colletotrichum gloeosporioides. Repositório Alice
PASSOS, J. F. M. dos.; COSTA, P. B. da.; COSTA, M. D.; ZAFFARI, G. R.; NAVA, G.; BONETI, J. I.; OLIVEIRA, A. M. R. de.; PASSAGLIA, L. M. P..
2014
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Plant growth-promoting bacteria; Apple tree; Antagonistic activity; Colletotrichum gloeosporioides.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1029560
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Cultivable bacteria isolated from apple trees cultivated under different crop systems: Diversity and antagonistic activity against Colletotrichum gloeosporioides Genet. Mol. Biol.
Passos,João Frederico M. dos; Costa,Pedro B. da; Costa,Murilo D.; Zaffari,Gilmar R.; Nava,Gilberto; Boneti,José Itamar; Oliveira,Andréia Mara R. de; Passaglia,Luciane M.P..
This study evaluated the diversity of cultivable plant growth-promoting (PGP) bacteria associated with apple trees cultivated under different crop management systems and their antagonistic ability against Colletotrichum gloeosporioides. Samples of roots and rhizospheric soil from apple trees cultivated in organic and conventional orchards in southern Brazil were collected, together with soil samples from an area never used for agriculture (native field). Bacteria were identified at the genus level by PCR-RFLP and partial sequencing of the 16S rRNA, and were evaluated for some PGP abilities. The most abundant bacterial genera identified were Enterobacter (27.7%), Pseudomonas (18.7%), Burkholderia (13.7%), and Rahnella (12.3%). Sixty-nine isolates presented...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant growth-promoting bacteria; Apple tree; Antagonistic activity; Colletotrichum gloeosporioides.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000400013
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Diazotrophic bacteria and nitrogen fertilization on the growth of micropropagated pineapple plantlets during acclimatization Ciência Rural
Silva,Aurilena de Aviz; Carvalho,Almy Junior Cordeiro de; Freitas,Flávia Paiva de; Pessanha,Patrícia Gomes de Oliveira; Santos,Paulo Cesar dos; Silva,Mírian Peixoto Soares da; Vasconcelos,Tábatha de Souza; Olivares,Fábio Lopes.
ABSTRACT: This study examines the effect of inoculation with diazotrophic bacteria and nitrogen fertilization on the growth of micropropagated pineapple cv. 'Vitória' plantlets during the acclimatization period. The experiment was carried out in a greenhouse in Campos dos Goytacazes, in randomized blocks, using a 2x5x5 factorial scheme, with the factors being two types of inocula (absence or presence of a mixture of diazotrophic bacteria that contained Burkholderia sp. UENF 114111, Burkholderia silvatlantica UENF 11711, and Herbaspirillum seropedicae HRC 54), five levels of urea (0, 2, 5, 7, and 10g L-1), and five evaluation periods (30, 60, 90, 120, and 150 days following the planting of plantlets in trays), and with four replications of each treatment....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ananas comosus; Plant growth-promoting bacteria; Nitrogen.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001101952
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Evaluación y cuantificación de las comunidades microbianas asociadas con las raíces micorrizadas de Pinus Montezumae y Pinus greggii. Colegio de Postgraduados
Reyes Molina, Samanta Adriana.
La ectomicorriza (ECM) es una simbiosis de enorme importancia estructural y funcional en los ecosistemas forestales boreales, templados y algunos tropicales. A su vez, la ECM establece relaciones simbióticas con diversos grupos de organismos dentro de los que se incluyen otros grupos microbianos, tales como hongos, bacterias y actinomicetos. Diversas investigaciones han determinado que el establecimiento, propagación y dinámica de los hongos ectomicorrízicos en las raíces de sus hospederos se encuentra influenciado por diversos microorganismos rizosféricos y de la micorrizósfera. El objetivo del presente trabajo fue evaluar las comunidades microbianas asociadas con las ECMs establecidas entre Pinus greggii y P. montezumae y tres hongos ectomicorrízicos...
Palavras-chave: Bacterias promotoras del crecimiento vegetal; Hongos ectomicorrízicos; Colonización micorrízica; Plant growth-promoting bacteria; Ectomycorrhizal fungi; Mycorrhizal colonization; Maestría; Botánica.
Ano: 2011 URL: http://hdl.handle.net/10521/472
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Evaluación y cuantificación de las comunidades microbianas asociadas con las raíces micorrizadas de Pinus Montezumae y Pinus greggii. Colegio de Postgraduados
Reyes Molina, Samanta Adriana.
La ectomicorriza (ECM) es una simbiosis de enorme importancia estructural y funcional en los ecosistemas forestales boreales, templados y algunos tropicales. A su vez, la ECM establece relaciones simbióticas con diversos grupos de organismos dentro de los que se incluyen otros grupos microbianos, tales como hongos, bacterias y actinomicetos. Diversas investigaciones han determinado que el establecimiento, propagación y dinámica de los hongos ectomicorrízicos en las raíces de sus hospederos se encuentra influenciado por diversos microorganismos rizosféricos y de la micorrizósfera. El objetivo del presente trabajo fue evaluar las comunidades microbianas asociadas con las ECMs establecidas entre Pinus greggii y P. montezumae y tres hongos ectomicorrízicos...
Palavras-chave: Bacterias promotoras del crecimiento vegetal; Hongos ectomicorrízicos; Colonización micorrízica; Plant growth-promoting bacteria; Ectomycorrhizal fungi; Mycorrhizal colonization; Maestría; Botánica.
Ano: 2011 URL: http://hdl.handle.net/10521/472
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Growth promotion of pineapple 'vitória' by humic acids and burkholderia spp. during acclimatization Rev. Bras. Ciênc. Solo
Baldotto,Lílian Estrela Borges; Baldotto,Marihus Altoé; Canellas,Luciano Pasqualoto; Bressan-Smith,Ricardo; Olivares,Fábio Lopes.
In vitro propagation of pineapple produces uniform and disease-free plantlets, but requires a long period of acclimatization before transplanting to the field. Quicker adaptation to the ex vitro environment and growth acceleration of pineapple plantlets are prerequisites for the production of a greater amount of vigorous, well-rooted planting material. The combination of humic acids and endophytic bacteria could be a useful technological approach to reduce the critical period of acclimatization. The aim of this study was to evaluate the initial performance of tissue-cultured pineapple variety Vitória in response to application of humic acids isolated from vermicompost and plant growth-promoting bacteria (Burkholderia spp.) during greenhouse...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ananas comosus; Plant growth-promoting bacteria; Diazotrophic bacteria; Humic substances; Inoculant; Biofertilizer.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000500012
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Inoculação de Azospirillum amazonense em dois genótipos de milho sob diferentes regimes de nitrogênio. Repositório Alice
REIS JÚNIOR, F. B. dos; MACHADO, C. T. de T.; MACHADO, A. T.; SODEK, L..
A adaptabilidade de genótipos de milho a ambientes onde os nutrientes não estejam prontamente disponíveis pode ser relacionada com a adaptação à predominância, nos solos, das formas de N nítrica e amoniacal e à associação com microrganismos benéficos como as bactérias diazotróficas e, ou, promotoras decrescimento de plantas. O objetivo deste trabalho foi verificar o comportamento de dois híbridos intervarietais de milho sob diferentes doses e formas de N, assim como o efeito da inoculação com Azospirillum amazonense, em um ensaio em casa de vegetação, utilizando vasos preenchidos com vermiculita e solução nutritiva de Hoagland como fonte de nutrientes. O delineamento experimental foi de blocos ao acaso em esquema fatorial, constituindo os tratamentos em:...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bactéria diazotrófica; Inoculação; Milho; Bactéria promotora do crescimento; Zea mays; Diazotrophic bacteria; Plant growth-promoting bacteria; Inoculation; Maize.
Ano: 2008 URL: http://www.alice.cnptia.embrapa.br/handle/doc/571648
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Irrigated wheat subjected to inoculation with Azospirillum brasilense and nitrogen doses as top-dressing AGRIAMBI
Alves,Cleiton J.; Arf,Orivaldo; Ramos,Ane F.; Galindo,Fernando S.; Nogueira,Lais M.; Rodrigues,Ricardo A. F..
ABSTRACT The use of Azospirillum brasilense in the wheat crop still presents contradictory results; thus, it is necessary to identify ideal conditions to obtain satisfactory results. The objective of this study was to investigate the interaction between Azospirillum brasilense and nitrogen doses in a wheat cultivar, conducted with irrigation in the Cerrado region of Mato Grosso do Sul. The experimental design was randomized blocks with a 4 x 2 factorial scheme, four nitrogen doses (0, 40, 80 and 120 kg ha-1) applied as top-dressing, associated or not with inoculation of wheat seeds with Azospirillum brasilense. The results show that there was no interaction between N and inoculation. The isolated effect of Azospirillum brasilense promotes an increase in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum L.; Nitrogen fertilization; Plant growth-promoting bacteria; Cerrado.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000800537
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The influence of topdressing nitrogen on Azospirillum spp. inoculation in maize crops through meta-analysis Bragantia
Zeffa,Douglas Mariani; Fantin,Lucas Henrique; Santos,Odair José Andrade Pais dos; Oliveira,André Luiz Martinez de; Canteri,Marcelo Giovanetti; Scapim,Carlos Alberto; Gonçalves,Leandro Simões Azeredo.
ABSTRACT The Azospirillum is considered one of the most studied plant growth promoter genus. These bacteria are capable of promoting plant growth through several factors. However, the effect of Azospirillum spp. associated to nitrogen fertilization on maize grain yield has brought about controversial results. Thus, the objective of this study was to verify the influence of topdressing nitrogen on the effect of Azospirillum spp. inoculation on maize crops through meta-analysis. Data were collected from articles published in scientific journals, obtained from the Web of Science®, Scopus® and Google Scholar® databases. The bibliographic review included only articles with direct comparisons between maize yield in the presence and absence of Azospirillum spp....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays L.; Meta-regression; Plant growth-promoting bacteria.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000300493
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Yield and quality of soybean seeds inoculated with Bacillus subtilis strains AGRIAMBI
Tavanti,Tauan R.; Tavanti,Renan F. R.; Galindo,Fernando S.; Simões,Isadora; Dameto,Larissa S.; Sá,Marco E. de.
ABSTRACT The use of growth-promoting bacteria can increase the yield and quality of seeds of several annual crops, such as soybean. Based on that, the present study aimed to evaluate the effects of the inoculation of Bacillus subtilis strains on seed treatment, evaluating the yield and quality of seeds of two soybean cultivars. The experiment was conducted in a conventional system, in an Oxisol of clayey texture, in a crop under sprinkler irrigation. The experimental design was randomized blocks, arranged in split plots with four repetitions. Treatments were composed, in the plots, of two soybean cultivars: M7110 IPRO and Brasmax Desafio RR. Within the levels of subplots, the treatments consisted of inoculation and doses of inoculant: Bacillus subtilis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Plant growth-promoting bacteria; Tetrazolium; Storage proteins; Seed vigor.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000100065
Registros recuperados: 13
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