Fluorescein Diacetate Hydrolysis
Mostrando 1-12 de 16 artigos, teses e dissertações.
-
1. TOWARDS BRAZIL AND CHINA CROSS-CULTURAL UNDERSTANDING AND TRANSNATIONAL COOPERATION
ABSTRACT Oxisols are important soils that have been converted from native vegetation to croplands, and can affect soil biological properties such as microbial biomass and enzyme activity. Thus, the aim of this study was to evaluate the changes on soil microbial biomass and enzyme activity when native vegetation (NV) was converted to cropland (CL), such as ma
Rev. Bras. Lit. Comp.. Publicado em: 2020-12
-
2. Soil microbial biomass and enzyme activity in six Brazilian oxisols under cropland and native vegetation
ABSTRACT Oxisols are important soils that have been converted from native vegetation to croplands, and can affect soil biological properties such as microbial biomass and enzyme activity. Thus, the aim of this study was to evaluate the changes on soil microbial biomass and enzyme activity when native vegetation (NV) was converted to cropland (CL), such as ma
Bragantia. Publicado em: 2020-12
-
3. Microbiological Indicators of Soil Quality Under Native Forests are Influenced by Topographic Factors
Abstract: Several microbiological indicators of soil quality present high sensitivity, but little is known about the influence of topographic factors on them. This work aimed to evaluate variability of biological indicators of soil quality across a hillslope under native forest and the influence of topographic factors on them. Four positions on a hillslope w
An. Acad. Bras. Ciênc.. Publicado em: 02/12/2019
-
4. Reforestation of a Degraded Area with Eucalyptus and Sesbania: Microbial Activity and Chemical Soil Properties
ABSTRACT Mining activities generally affect soil quality, degrading it and creating the need for consistent environmental recovery efforts. This study evaluates the influence of monospecific and mixed stands of Sesbania virgata (S) and Eucalyptus camaldulensis (E) on the chemical properties and microbial activity of the soil in a degraded area by clay extrac
Rev. Bras. Ciênc. Solo. Publicado em: 10/07/2017
-
5. ATRIBUTOS MICROBIOLÓGICOS DO SOLO EM SISTEMA DE INTEGRAÇÃO LAVOURA-PECUÁRIA
O sistema de integração lavoura-pecuária (ILP) tem se evidenciado como alternativa viável para a recuperação e manutenção das características do solo. Este estudo foi desenvolvido em um experimento de ILP conduzido pelo Instituto Agronômico do Paraná no município de Xambrê, PR, com diferentes intensidades de pastejo. O objetivo deste trabalho fo
Rev. Bras. Ciênc. Solo. Publicado em: 2015-02
-
6. Potential of soil fumigation with mustard essential oil to substitute biofumigation by cruciferous plant species
Soil fumigation with the synthetic essential oil of mustard (93% allyl isothiocyanate) (EOM) was evaluated as a substitute of bio-fumigation with cruciferous plant species, using Sclerotium rolfsii and Sclerotinia sclerotiorum as test pathogens, together with its non-target effect on the general population of soil microorganisms. The mortality of the sclerot
Trop. plant pathol.. Publicado em: 09/07/2013
-
7. Program, abstracts and related documents.
The context: Soil biodiversity and sustainable agriculture; Abstracts - Theme 1: Monitoring and assessment: Bioindicators of soil health: assessment and monitoring for sustainable agriculture; Practical tools to measure soil health and their use by farmers; Biological soil quality from biomass to biodiversity - importance and resilience to management stress
Londrina: Embrapa Soybean: FAO. Publicado em: 2011
-
8. InfluÃncia de Cladonia salzmanni Nyl sobre fungos micorrÃzicos arbusculares e no desenvolvimento de plÃntulas de Genipa americana L
Lichens are know for being rich in substances considered asseing allelopathic or antimicrobial agents, which can be leached out from lichen by rainfall, and therefore the soil below is enriched by these compounds. Aiming to study the ecological role of these organisms, two experiments were performed. In the experiment 1 the effects of Cladonia salzmannii aga
Publicado em: 2007
-
9. Rhizospheric microorganisms and arbuscular mycorrhiza in soil from a petrochemical waste landfarming system. / Microbiota RizosfÃrica e Micorriza Arbuscular em Solo de "Landfarming" de ResÃduos PetroquÃmicos.
In the petroleum industrialization a great volume of different toxic residues is generated. Because of these waste environmental hazards they need to be adequately treated before final disposition in the environment. These wastes are usually treated by landfarming systems, but this technique has only relative success, since it doesn t completely remove all c
Publicado em: 2007
-
10. Fluorescein Diacetate Hydrolysis as a Measure of Total Microbial Activity in Soil and Litter
Spectrophotometric determination of the hydrolysis of fluorescein diacetate (FDA) was shown to be a simple, sensitive, and rapid method for determining microbial activity in soil and litter. FDA hydrolysis was studied in soil and straw incubated for up to 3 h. Hydrolysis was found to increase linearly with soil addition. FDA hydrolysis by pure cultures of Fu
-
11. Characterization of uptake and hydrolysis of fluorescein diacetate and carboxyfluorescein diacetate by intracellular esterases in Saccharomyces cerevisiae, which result in accumulation of fluorescent product.
Flow cytometry is a rapid and sensitive method which may be used for the detection of microorganisms in foods and drinks. A key requirement for this method is a sufficient fluorescence staining of the target cells. The mechanism of staining of the yeast Saccharomyces cerevisiae by fluorescein diacetate (FDA) and 5- (and 6-)carboxyfluorescein diacetate (cFDA)
-
12. Ruminal Bacterial Degradation of Benzo(b)-thien-4-yl Methylcarbamate (Mobam) and Effect of Mobam on Ruminal Bacteria
Mixtures of ruminal bacteria degraded benzo(b)thien-4-yl methylcarbamate (Mobam) to 4-hydroxybenzothiophene, CO2, and polar product(s). The metabolite, 4-hydroxybenzothiophene, was identified (after acetylation) by comparative infrared and mass spectrometry with an authentic sample. Carbon dioxide and polar product(s) were produced by degradation of the meth