29 Result(s)
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Article
Genetic diversity among native isolates of rhizobia from Phaseolus lunatus
The genetic diversity among native nodular rhizobia of Lima bean in soil from Piauí State, Brazil, was characterized and evaluated. The genotype UFPI-491 was used as a trap plant for rhizobia, with soil sample...
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Article
Microbiological process in agroforestry systems. A review
Soils around the world are degraded due to inappropriate management practices. There is thus the necessity to find more conservationist agricultural systems. Agroforestry system is an alternative system that h...
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Article
Soil bacterial diversity in degraded and restored lands of Northeast Brazil
Land degradation deteriorates biological productivity and affects environmental, social, and economic sustainability, particularly so in the semi-arid region of Northeast Brazil. Although some studies exist re...
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Article
Soil microbial properties after 5 years of consecutive amendment with composted tannery sludge
Composting has been recognised an alternative method to tannery sludge recycling and afterwards to be used in agriculture. As the tannery sludge contains salts and chromium, the application of composted tanner...
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Article
Repeated application of composted tannery sludge affects differently soil microbial biomass, enzymes activity, and ammonia-oxidizing organisms
Repeated application of composted tannery sludge (CTS) changes the soil chemical properties and, consequently, can affect the soil microbial properties. The aim of this study was to evaluate the responses of s...
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Rhizobial Diversity for Tropical Pulses and Forage and Tree Legumes in Brazil
The current information on Brazilian rhizobial diversity, concentrating especially on the microbial symbionts of tropical pulses, forage legumes, and legume trees, some of which are native to Brazil or of whic...
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Article
Time-dependent effect of composted tannery sludge on the chemical and microbial properties of soil
Composting has been suggested as an efficient method for tannery sludge recycling before its application to the soil. However, the application of composted tannery sludge (CTS) should be monitored to evaluate ...
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Article
Open AccessDynamics of archaeal community in soil with application of composted tannery sludge
Application of composted tannery sludge (CTS) could promote a shift in the structure of soil microbial communities. Although the effect of CTS on bacterial community has been studied, it is unclear how the com...
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Article
Polyphasic characterization of nitrogen-fixing and co-resident bacteria in nodules of Phaseolus lunatus inoculated with soils from Piauí State, Northeast Brazil
Phaseolus lunatus (Lima bean) is an important legume for the poor population of the Brazilian northeast region. The legume is able to take advantage of the nitrogen fixation process, but the diversity of indigeno...
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Article
Open AccessResponses of soil microbial biomass and enzyme activity to herbicides imazethapyr and flumioxazin
The use of herbicides is important for controlling weeds in crops. However, they can present impacts on soil properties, such as biological properties. In this study, we evaluated the responses of soil microbi...
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Article
Bacillus subtilis can modulate the growth and root architecture in soybean through volatile organic compounds
Bacillus subtilis colonizes rhizosphere of plants and releases some volatile organic compounds (VOCs) that can modulate the growth and root architecture in several plants. However, the influence of VOCs on growth...
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Article
Phytotoxicity and cytogenotoxicity of composted tannery sludge
Tannery sludge (TS) contains high levels of organic matter and chemical elements, mainly chromium (Cr). This can increase its toxicity, rendering it unsuitable for application to soil. However, composting has ...
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Article
Long-term effect of composted tannery sludge on soil chemical and biological parameters
Composting has been recommended as a suitable alternative for recycling wastes and could improve tannery sludge (TS) before its use. However, the long-term application of composted tannery sludge (CTS) may bri...
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Article
Open AccessDistinct bacterial community structure and composition along different cowpea producing ecoregions in Northeastern Brazil
Soil microbial communities represent the largest biodiversity on Earth, holding an important role in promoting plant growth and productivity. However, the knowledge about how soil factors modulate the bacteria...
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Article
Plant growth-promoting bacteria improve growth and nitrogen metabolism in maize and sorghum
Plant growth-promoting bacteria (PGPB) present potential to be used in agriculture supporting plant growth and improving physiological responses even in N-fertilized soils. Thus, this study aimed to evaluate P...
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Article
Dynamics of bacterial and archaeal communities along the composting of tannery sludge
The process of composting has been proposed as a biological alternative to improve the quality of tannery sludge (TS) by the action of microbial communities. However, there is limited knowledge about the dynam...
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Article
Open AccessGenetically related genotypes of cowpea present similar bacterial community in the rhizosphere
Plant breeding reduces the genetic diversity of plants and could influence the composition, structure, and diversity of the rhizosphere microbiome, selecting more homogeneous and specialized microbes. In this ...
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Article
Enzymatic Stoichiometry in Soils from Physiognomies of Brazilian Cerrado
The enzymatic stoichiometry allows assessing microbial C, N, and P acquisition, being used to indicate a nutrient limitation in soils. This study evaluated the enzymatic stoichiometry in soils from different p...
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Article
Applications of Cr-rich composted tannery sludge in the soil decrease microbial biomass and select specific bacterial groups
The tannery industries generate a solid waste known as tannery sludge, which is composed of organic and inorganic compounds, mainly chromium (Cr). When Cr is not removed from the tannery sludge, this solid was...
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Article
Tolerance and reduction of chromium by bacterial strains
Bacteria have potential to tolerate and reduce metals. This study evaluated the potential of selected bacterial strains in tolerating and reducing chromium (Cr). Six bacterial strains (Rhizobium miluonense LCC01,...
