Claudia Cristina Garcia Martin-Didonet

Universidade Estadual de Goiás

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Enderson Petrônio de Brito Ferreira

Brazilian Agricultural Research Corporation

Karina Freire D'eça Nogueira Santos

Universidade Estadual de Goiás

A. M. Knupp

Brazilian Agricultural Research Corporation

Cláudio Brondani

Brazilian Agricultural Research Corporation

L. F. Stone

Brazilian Agricultural Research Corporation

Eliana Paula Fernandes

Universidade Federal de Goiás

Fábio O. Pedrosa

Universidade Federal do Paraná

L. U. Rigo

Universidade Federal do Paraná

Marilene Silva Oliveira

Universidade Estadual de Goiás

Agostinho Dirceu Didonet

Brazilian Agricultural Research Corporation

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Universidade Federal de Goiás

Brazilian Agricultural Research Corporation

Universidade Estadual de Goiás

Universidade Federal do Paraná

Universidade de São Paulo

Instituto Federal Goiano

Fundação de Apoio a Pesquisa do Estado de Goiás

University of Virginia

McCormick (United States)

Universidade Paulista

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Efeito de diferentes fontes de nitrogênio na emissão de fluorescência de plantas de feijoeiro e sistema de hidroponia.

Claudia Cristina Garcia Martin-Didonet Márcia Brito Nery Alves Fernanda Souza Bernardes Agostinho Dirceu Didonet Tomás Aquino Portes

Para determinar a influencia de diferentes fontes de nitrogenio na emissao de fluorescencia do fotossistema II, plantas de feijoeiro cultivar BRS-Valente, foram crescidas em solucao nutritiva de Hoagland.

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Crescimento de cultivares de arroz (Oryza sativa L.) influenciado pela inoculação com bactérias promotoras de crescimento de plantas

DOAJ (DOAJ: Directory of Open Access Journals) (2013)

Enderson Petrônio de Brito Ferreira A. M. Knupp Claudia Cristina Garcia Martin-Didonet

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Storage protein profile and amino acid content in wild rice Oryza glumaepatula Perfil da proteína de reserva e conteúdo de aminoácidos no arroz silvestre Oryza glumaepatula

DOAJ (DOAJ: Directory of Open Access Journals) (2013)

Karina Freire D'eça Nogueira Santos Ricardo Diógenes Dias Silveira Claudia Cristina Garcia Martin-Didonet Cláudio Brondani

Oryza

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Catálogo descritivo dos acessos da Coleção Nuclear de Arroz da Embrapa - CNAE versão 1.0.

Cláudio Brondani J. A. Mendonça T. C. de O. Borba P. H. N. Rangel A. C. C. Cordeiro

Esta Serie Documentos apresenta os resultados do desempenho agronomico de cada um dos 550 acessos da CNAE em 11 experimentos de campo, conduzidos no delineamento de Blocos Aumentados de Federer. Os locais onde os experimentos foram conduzidos no sistema de cultivo de sequeiro estao indicados nas fichas dos acessos. Nos demais locais, os ensaios foram conduzidos sob sistema irrigado. As escalas adotadas para as avaliacoes de algumas caracteristicas estao descritas no Anexo I. Em Formoso do Araguaia foram conduzidos dois experimentos - com e sem aplicacao de fungicida. Os acessos descritos nesta Serie Documentos fazem parte da CNAE versao 1.0.

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Population and microbial activity of the soil under an agro-ecological production system

Ciência Agronômica/Revista ciência agronômica (2016)

Enderson Petrônio de Brito Ferreira L. F. Stone Claudia Cristina Garcia Martin-Didonet

Os atributos da microbiota do solo são importantes indicadores de alterações causadas por práticas agrícolas. Foi conduzido um experimento em condição de campo, em um delineamento de blocos casualizados com quatro repetições, com o objetivo de avaliar os efeitos da forma de manejo (sistema de semeadura direta - SSD e sistema de plantio convencional - SPC) e da fase de condução da cultura do arroz de terras altas (pré-plantio - PP, floração - FA e pós-colheita - PC) sobre atributos da biomassa microbiana do solo (Cmic, Nmic, RBS, qCO2), atividade enzimática (AET, Aβ-G e AFA) e população de microrganismos (bactérias, fungos, actinobactérias e diazotróficos) em amostras de solo coletadas na profundidade de 0-20 cm, tendo como referência uma área de mata, próxima ao experimento. Os sistemas de cultivo provocaram alterações nos atributos microbiológicos do solo quando comparados com a mata, usada como referência. Foi observado diferença entre os sistemas de manejo para Cmic, RBS e qCO2, sendo que sob SSD os valores de Cmic e qCO2 foram próximos aos observados para a mata. A atividade enzimática do solo não detectou diferença entre SSD e SPD; contudo, foi observado maior AFA no PP. No geral, o número de microrganismos foi maior sob SSD e SPC, comparados à mata, exceto para fungos. As maiores contagens de microrganismos foram observadas no PP, exceto para os actinomicetos cujo maior valor foi observado na PC.

10.5935/1806-6690.20170003

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Agronomical Performance of Upland Rice Cultivars Inoculated withAzospirillum brasilenseDepends on the Plant Genotype

Communications in Soil Science and Plant Analysis (2015)

Enderson Petrônio de Brito Ferreira Adriano Pereira de Castro Claudia Cristina Garcia Martin-Didonet N. K. Fageria

Plant growth–promoting bacteria may play an important role on rice development; however, its interaction with different genotypes is still uncertain. This work aimed to assess the effect of inoculation of Azospirillum brasilense AbV5 strain on the agronomical performance of different rice cultivars under field conditions during two consecutive years and to determine the response of rice cultivars to indole-acetic acid (IAA) rates under in vitro conditions using for both conditions a randomized block design. Field experiments evaluated the productivity components and grain yield of inoculated and noninoculated cultivars and in vitro assays monitored the plantlet growth under different IAA rates. Field experiments showed that the general average grain yield of rice cultivars inoculated with A. brasilense AbV5 strain was significantly greater. Fifty percent of the evaluated cultivars had statistically significant increase in yield varying from 40 to 108 percent upon inoculation with A. brasilense AbV5 strain, while 35 percent showed no significant change in yield (−6 to −28 percent). In vitro assays showed rate- and cultivar-dependent responses of upland rice to exogenous IAA. These results show a cultivar-dependent response of rice to inoculation with A. brasilense AbV5 strain, which can be related with IAA production by AbV5 strain.

Azospirillum brasilense

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Plantlet

10.1080/00103624.2015.1043456

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Morphophysiological characterization of rhizobia isolated from wild genotypes of the common bean

Bioscience Journal (2016)

Fernanda Bueno Sampaio A. M. Knupp Eliana Paula Fernandes Claudia Cristina Garcia Martin-Didonet Enderson Petrônio de Brito Ferreira

This study aimed to characterize, based on the morphology and on the use of carbon sources, rhizobial isolates obtained from nodules of wild common bean genotypes cultivated on soil samples from the states of Goiás, Minas Gerais and Paraná.Based on morphological and carbon source use, similarity matrixes were generated to perform clustering analysis based on the Jaccard index.A total of 523 isolates were obtained with the predominance of isolates that acidify the culture medium and showed fast growth.Isolates from the soils of Araucária and Prudentópolis produced a greater amount of mucus than those from Jussara, Nova Veneza, Uberlândia and Unaí soils.The rhizobia isolates obtained from soils of Goiás and Minas Gerais showed greater phenotypic diversity than those from the soils of Paraná.Analysis based on the use of different carbon sources revealed that rhizobia isolates obtained from soils of Goiás have higher metabolic diversity.Overall, the most part of isolates grouped with the reference strains, especially with the Rhizobium tropici and R. freirei strains used as inoculants for the common bean.

10.14393/bj-v32n6a2016-33084

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Physicochemical characterization of the brown pigment produced by Azospirillum brasilense HM053 using tryptophan as precursor

Brazilian Journal of Microbiology (2024)

Karina Freire d’Eça Nogueira Santos Marilene Silva Oliveira Enderson Petrônio de Brito Ferreira Alliny das Graças Amaral Claudia Cristina Garcia Martin-Didonet

Azospirillum brasilense

10.1007/s42770-024-01433-8

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Population and microbial activity of the soil under an agro-ecological production system

Figshare (2021)

Enderson Petrônio de Brito Ferreira L. F. Stone Claudia Cristina Garcia Martin-Didonet

ABSTRACT The attributes of soil microbiota are important indicators of the changes caused by agricultural practices. An experiment was carried out under field conditions in a randomized block design with four replications, with the aim of evaluating the effects of the type of management (a system no tillage - SSD and of conventional tillage - SPC) and the growth stage of upland rice (pre-plant - PP, flowering - FA and postharvest - PC) on attributes of the soil microbial biomass (Cmic, Nmic, BSR, qCO2), enzyme activity (TEA, Aß-G and APA) and population of microorganisms (bacteria, fungi, actinobacteria and diazotrophs) in soil samples collected at a depth of 0-20 cm. An area of forest near the experiment was taken as reference. The management systems caused changes in the microbiological attributes of the soil when compared to the reference forest. A difference was found between the management systems for Cmic, BSR and qCO2; under SSD, the values for Cmic and qCO2 were close to those observed for the forest. No difference was detected between SSD and SPD in the enzyme activity of the soil; however, greater values were found for APA at the PP stage. Overall, the number of microorganisms was higher under SSD and SPC compared to the forest, except for fungi. The greatest counts of microorganisms were found at the PP stage, except for actinobacteria, for which the highest value was found at the PC stage.

10.6084/m9.figshare.14326947

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Assessment of morphophysiological and genotypic diversity of endophytic bacteria isolated from rice (Oryza sativa L.) plants

Revista Caatinga (2023)

Lucas Leonardo-Silva Larissa Batista da Silva Enderson Petrônio de Brito Ferreira Karina F. D. N. S. dos Reis Plínio Lázaro Faleiro Naves

ABSTRACT Rice production in Brazil incurs high costs due to the significant use of agrochemicals. Some plant growth-promoting rhizobacteria (PGPR) can be used as alternative to fertilizers and phytosanitary products. Thus, the objective of this study was to characterize endophytic bacteria isolated from roots of rice plants. The isolates were characterized based on colony morphology, antibiotic resistance, carbon sources utilization, enzyme activity (catalase, amylase, protease, cellulase, and lipase), inorganic phosphate solubilization, and the 16S-23S rDNA intergenic region. Morphologically, 68% of the isolates presented a rapid growth rate, 46% presented abundant mucus production, and 77% formed viscous colonies. All isolates were resistant to nalidixic acid and 16% presented resistance to streptomycin. The majority (90%) used monosaccharides and disaccharides in carbon source assays. Most of the isolates (95%) were positive for catalase and 63.6% were positive for amylase, protease, lipase, and cellulase activities. Additionally, 59% of them were able to solubilize phosphate. The mean enzymatic index for amylase, cellulase, and protease was 2.8, 3.5, and 1.7 respectively. The similarity analysis revealed high diversity among the isolates, with similarity indices of 70% (based on morphological characteristics) and 60% (based on the intergenic region 16S-23S rDNA). Considering morphophysiological and genotypic characteristics, three promising isolates should be evaluated in studies under field conditions for the potential development of bioproducts to replace industrially manufactured inputs in rice crops.

10.1590/1983-21252023v36n405rc

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