Soil Microbiota
Mostrando 1-12 de 76 artigos, teses e dissertações.
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1. Is Increasing Doses of Imazapyr + Imazapic Detrimental to the Main Crop Rotation Alternatives to Flooded Rice?
RESUMO: A mistura formulada de imazapyr + imazapic é o principal herbicida usado para o controle de plantas daninhas em arroz no sistema Clearfield®. O uso contínuo de altas doses pode aumentar sua atividade residual no solo. O objetivo deste trabalho foi determinar a sensibilidade de culturas de cobertura e soja em rotação com arroz irrigado a diferent
Planta daninha. Publicado em: 02/12/2019
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2. Competitive Capacity and Rhizosphere Mineralization of Organic Matter During Weed-Soil Microbiota Interactions
RESUMO: A competição entre plantas daninhas e culturas é um dos principais fatores responsáveis por perdas de produtividade nos campos agrícolas. Esta revisão teve como objetivo apresentar e discutir como a interação entre plantas daninhas e microrganismos pode afetar a capacidade competitiva de plantas daninhas, bem como as propriedades físico-quí
Planta daninha. Publicado em: 18/02/2019
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3. Atrazine degradation patterns: the role of straw cover and herbicide application history
ABSTRACT: In Brazil, atrazine (ATZ) is widely applied to maize (Zea mays L.) fields for weed control. The presence of ATZ and its metabolites in soil and water matrices has become a matter of some concern for governmental authorities as well as for society at large. This study evaluated the patterns of ATZ degradation (mineralization, extractable and non-ext
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-02
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4. Effect of sulfonylurea tribenuron methyl herbicide on soil Actinobacteria growth and characterization of resistant strains
ABSTRACT Repeated application of pesticides disturbs microbial communities and cause dysfunctions on soil biological processes. Granstar® 75 DF is one of the most used sulfonylurea herbicides on cereal crops; it contains 75% of tribenuron-methyl. Assessing the changes on soil microbiota, particularly on the most abundant bacterial groups, will be a useful a
Braz. J. Microbiol.. Publicado em: 2018-03
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5. Rhizospheric activity of phytoremediation species in soil contaminated with picloram1
RESUMO Atividade rizosférica de espécies fitorremediadoras em solo contaminado com picloram Algumas espécies de planta têm a capacidade de estimular a atividade da microbiota na rizosfera e, com isso, aumentar a degradação de herbicida no solo. Objetivou-se avaliar a atividade microbiana de solos contaminados com picloram e pré-cultivados com espécie
Pesqui. Agropecu. Trop.. Publicado em: 2017-06
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6. Microbial activity of soil with sulfentrazone associated with phytoremediator species and inoculation with a bacterial consortium
ABSTRACT Phytostimulation plays a key role in the process of rhizodegradation of herbicides in soil. Additionally, bio-enhancement associated with phytoremediation may increase the efficiency of the decontamination process of soils with herbicides. Therefore, the objective of this study was to evaluate the biomass and microbial activity of soil contaminated
Bragantia. Publicado em: 15/05/2017
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7. Soil pretreatment and fast cell lysis for direct polymerase chain reaction from forest soils for terminal restriction fragment length polymorphism analysis of fungal communities
Abstract Humic substances in soil DNA samples can influence the assessment of microbial diversity and community composition. Using multiple steps during or after cell lysis adds expenses, is time-consuming, and causes DNA loss. A pretreatment of soil samples and a single step DNA extraction may improve experimental results. In order to optimize a protocol fo
Braz. J. Microbiol.. Publicado em: 2016-12
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8. Characterization of the core microbiota of the drainage and surrounding soil of a Brazilian copper mine
Abstract The core microbiota of a neutral mine drainage and the surrounding high heavy metal content soil at a Brazilian copper mine were characterized by 16S rDNA pyrosequencing. The core microbiota of the drainage was dominated by the generalist genus Meiothermus. The soil samples contained a more heterogeneous bacterial community, with the presence of bot
Genet. Mol. Biol.. Publicado em: 03/11/2015
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9. Filamentous fungi isolated from Brazilian semiarid tolerant to metallurgical industry wastes: an ex situ evaluation
The purpose of this study was to assess the impact of metallurgical industry wastes on the semiarid soil microbiota using physico-chemical and microbiological parameters, highlighting the filamentous fungi assembly. Soil samples were collected in an area of industrial waste deposit contaminated with lead and mixed with natural soil (control soil) in seven di
Braz. arch. biol. technol.. Publicado em: 2014-10
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10. Eco-epidemiologic study of emerging fungi related to the work of babaçu coconut breakers in the State of Maranhão, Brazil
Introduction: There are more than 300,000 extractors using the babaçu coconut as a source of income in the States of Maranhão, Pará, Tocantins and Piauí, and this activity is associated with fungal infections. The objective of this study was to examine the occurrence of emergent fungi in the conjunctiva, nails and surface and subcutaneous injuries of fe
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-01
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11. Soil microbial response to glucose and phosphorus addition under agricultural systems in the Brazilian Cerrado
Os sistemas convencional (SC) e plantio direto (SPD) alteram a disponibilidade de nutrientes no solo e, consequentemente, modificam a resposta da microbiota do solo à adição de nutrientes tais como carbono (C) e fósforo (P). O objetivo deste estudo foi avaliar a resposta da microbiota do solo à adição de C (glicose) e P (Na2HPO4.7H2O) sob os SC e SPD
An. Acad. Bras. Ciênc.. Publicado em: 05/03/2013
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12. Bioindicadores de qualidade do solo em um gradiente de restauração ambiental / Soil quality bioindicators of an environmental restoration gradient
Impactos ambientais podem interferir nas características da biomassa microbiana, no processo de ciclagem de nutrientes, nas características físicoquímicas e também na diversidade da microbiota e da macrofauna. O objetivo desse trabalho foi conhecer as diferentes interações entre estes atributos e identificar os indicadores da qualidade do solo envolvi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2012