Consulta: subjectFacets:"Microbial flora"
Registros recuperados: 8
Data/hora: 17/06/2024 06:46:21

Uso de parâmetros microbiológicos como indicadores para avaliar a qualidade do solo e a sustentabilidade dos agroecossistemas.
Provedor de dados: 14
Autores: MENDES, I. de C.; REIS JUNIOR, F. B. dos.
ABSTRACT: Every factor that has a negative impact on soil microorganisms sooner or later will reflect in a deterioration of soil chemical and physical properties specially, those related to soil organic matter losses. This paper was based on a talk presented at "The International Symposium of Indicators of Soil Quality" held on Marco Juarez-Argentina. Some of the aspects related to the concept of soil quality and biological indicators of soil quality, were reviewed. Results of the studies related to the characterization of soil microbial biomass, respiration and enzymes activities on different agroecosystems of the Cerrado region also are presented. Soil microbial biomass, microbial respiration, and the activities of soil enzymes (acid phosphatase,...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Biiomassa; Microbial flora; Enzymic activity.; Atividade Enzimática; Bioquímica do Solo; Cerrado; Microbiologia do Solo; População Microbiana.; Biochemistry; Biomass; Microbiology; Soil.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569604

Propriedades biologicas em agregados de um LE sob plantios convencional e direto no Cerrado.
Provedor de dados: 14
Autores: MENDES, I. de C.; SOUZA, L. V. de; RESCK, D. V. S.; GOMES, A. C.
bitstream/CPAC-2009/24609/1/bolpd_33.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Microbial flora; Enzymic activity; Enzimes.; Atividade Enzimática; Biomassa; Carbono; Cerrado; Enzima; Fosfatase Ácida; Manejo do Solo; Microbiologia do Solo; População Microbiana; Solo.; Acid phosphatase; Carbon; Biomass; Soil biology; Soil; Soil management.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/559745

Biomassa C e atividade microbiana em solos de cerrado sob plantio direto e plantio convencional.
Provedor de dados: 14
Autores: MENDES, I. de C.; CARNEIRO, R. G.; CARVALHO, A. M. de; VIVALDI, L.; VARGAS, M. A. T.
bitstream/item/102879/1/pesq-05.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Microbial flora; Zero tillage.; Biomassa; Cerrado; Manejo do Solo; População Microbiana.; Plantio; Plantio Direto; Biomass; Soil management.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/545864

Indicadores biológicos associados ao ciclo do fósforo em solos de cerrado utilizando plantio direto e plantio convencional.
Provedor de dados: 14
Autores: CARNEIRO, R. G.; MENDES, I. de C.; LOVATO, P. E.; CARVALHO, A. M. de; VIVALDI, L. J.
RESUMO: O objetivo deste trabalho foi avaliar a influência do plantio direto, do preparo convencional do solo e de plantas de cobertura sobre indicadores biológicos associados ao ciclo do fósforo (P). O trabalho foi realizado em três áreas adjacentes, num Latossolo Vermelho-Amarelo, distribuídas da seguinte maneira: área I, dois anos de experimentação, comparando esses sistemas de plantio; área II, seis anos de experimentação e área III, Cerrado nativo. Em julho/1998 e janeiro/1999, avaliaram-se: o P da biomassa, populações de fungos e bactérias totais e solubilizadores de fosfato e a atividade da fosfatase ácida, nas profundidades de 0-5 e de 5-20 cm. A atividade da fosfatase e a ocorrência de fungos e bactérias solubilizadoras nas áreas com plantio...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Plantio convencional; Zero tillage; Microbial flora; Cover plants; Solubilizing.; Biomassa; Biologia do Solo; Cerrado; Fosfatase Ácida; Fosfato; População Microbiana; Planta de Cobertura; Plantio Direto; Solubilização.; Acid phosphatase; Conventional tillage; Biomass; Phosphates; Soil biology.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569003

Biomassa microbiana do solo.
Provedor de dados: 14
Autores: REIS JÚNIOR, F. B. dos; MENDES, I. de C.
ABSTRACT: The microbial biomass, respiration and their derivative indexes are proposed as indicators of the state and changes of the soil organic matter. This document presents basic information about these indicators and the two methodologies most used for C-microbial biomass determinations, the fumigation-incubation and the fumigation-extraction methods. The basic principles behind these methods, advantages, disadvantages and limitations are discussed. As then main objective of this review, recent results from research in this field developed at the Embrapa Cerrados are presented.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Microbial flora; Incubation.; Biomassa; Carbono; Fumigação; Incubação; Microbiologia do Solo; População Microbiana.; Biomass; Fumigation; Microbiology; Soil.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/572256

Plantas transgênicas e a microbiota do solo.
Provedor de dados: 14
Autores: REIS JÚNIOR, F. B. dos; MENDES, I. de C.; HUNGRIA, M.
ABSTRACT: Soil micro-organisms represent a key hole in the nutrient cycle and in the maintenance of the fertility, besides execute another variety of important functions for the plants and the environment. With the possibility of the transgenic crops to cause negative impacts on the soil microbial communities, emerge the necessity to deep evaluate the real extensions of these impacts. In such case, this document presents some discussions about the interactions between transgenic plants and soil micro-organisms, showing results from different studies conducted by many reseachers in the world and focusing in the evaluated parameters and the methodologies utilised to analyse the microbial communities.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Microbial flora; Plant diseases; Pests of plants; Resistance.; Biotecnologia; Doença de Planta; Herbicida; Microbiologia do Solo; População Microbiana; Praga de Planta; Planta Transgênica; Resistência.; Herbicides; Biotechnology; Soil biology; Transgenic plants.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569840

Effect of bacterial interactions on the spoilage of cold-smoked salmon
Provedor de dados: 5
Autores: Joffraud, Jean-jacques; Cardinal, Mireille; Cornet, Josiane; Chasles, Jean-sebastien; Leon, Sandrine; Gigout, Frederique; Leroi, Francoise.
Cold-smoked salmon is a lightly preserved fish product in which a mixed microbial flora develops during storage and where the interactive behaviour of micro-organisms may contribute to their growth and spoilage activity. The aim of this study was to assess the effect of the bacterial interactions between the main species contaminating the cold-smoked salmon on bacterial growth, chemical and sensory changes, and spoilage. First, Carnobacterium piscicola, Photobacterium phosphoreum, Lactobacillus sakei, Vibrio sp., Brochothrix thermosphacta and Serratia liquefaciens-like were inoculated as pure cultures on sterile cold-smoked salmon. All bacterial species grew well; Vibrio sp. was the fastest and L. sakei strains developed very rapidly as well with a high...
Tipo: Text
Palavras-chave: Spoilage; Interaction; Microbial flora; Cold smoked salmon.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1727.pdf

Effects of Flammulinavelutipes Stem Base on Microflora and Volatile Fatty Acids In Caecum of Growing Layers under Heat Stress Condition
Provedor de dados: 89
Autores: Wang,S; Mahfuz,S; Song,H.
ABSTRACT The present study was undertaken to investigate the effects of Flammulinavelutipes stem base (FVS) on growth performance, microbial flora and volatile fatty acids of growing layers under heat stress condition. A total of 72 ISA Brown hens were randomly divided into six treatments: thermoneutral temperature control group (CON), heat stress control group (HS), heat stress antibiotic group (ANT) as positive control and heat stress FVS groups (20, 40 or 60 g/kg FVS). The experimental period had a duration of 28 d (days 84-112). On day 98, daily gain average was significantly higher (p&lt;0.05) in the FVS groups than in the HS group. The number of bands in the FVS groups were higher (p&lt;0.05) than in the HS group on day 98. The microbial similarity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Laying hens; Thermal stress; Microbial flora; Mushroomstembase; Short chain fatty acids.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000400303