In the present study, a biofertilizer on the basis of Streptomyces fumanus gn-2 was used for the treatment of wheat and soybean seeds (dose 104 spore/ml) before planting them in soil with low fertility in order to determine the effect of this biological agent on germination rate; the growth of seedlings, shoots, and the maturation phase of plants; the rhizosphere’s functional biodiversity; and ...

oil contamination is one of the most common and usual kinds of pollution in aquatic and terrestrial ecosystems. one of the economical and effective methods for decreasing or eliminating oil contamination is using plants and microorganisms. soils contain a wide variety of oil decomposing microorganisms, of which pseudomonad, rhodocoous and nocardia are the most important. to evaluate the effect ...

Abstract Background Rhizosphere microbiomes are fundamental for plant health, development, and productivity, but can be altered by the incidence of soil-borne pathogens. The dysbiosis (disturbance microbiome structure healthy plants) caused these pathogens, combined with recruitment beneficial microorganisms diseased plant, may cause shifts in rhizosphere during infection process. These likely ...

Micro–N pool dilution was used to quantify rates of gross N mineralization, consumption, and nitrification in bulk soil and in soil within 2 mm of root sections of Avena barbata (slender wild oats), an annual grass common to California oak woodland-savannas. Rates of gross N mineralization in rhizosphere soil (9.2 mg N kgd) were about ten times higher than in bulk soil (1.0 mg N kgd). Total bac...

A wide range of soil microorganisms produce allelopathic and antimicrobial metabolites1). We isolated from the rhizosphere of grasses a phosphate-solubilizing bacterium Enterobacter intermedium 60-2G that possesses several biological functions with potential uses in agriculture5). In this paper, we identify an antimicrobial substance from this bacterium and characterize its inhibitory effects o...

The genotypic diversity that occurs in natural populations of antagonistic microorganisms provides an enormous resource for improving biological control of plant diseases. In this study, we determined the diversity of indigenous 2,4-diacetylphloroglucinol (DAPG)-producing Pseudomonas spp. occurring on roots of wheat grown in a soil naturally suppressive to take-all disease of wheat. Among 101 i...

Oil sands mining in northern Alberta impacts a large footprint, but the industry is committed to reclaim all disturbed land to an ecologically healthy state in response to environmental regulations. However, these newly reconstructed landscapes may be limited by several factors that include low soil nutrient levels and reduced microbial activity. Rhizosphere microorganisms colonize plant roots ...

The rhizosphere’s microbial communities consist of a diverse set microorganisms that can be beneficial to plants. These are key determinants plant productivity and health. In this study, we used shotgun metagenomics explore characterize the microbiome sunflower rhizosphere bulk soil. shared features with soil dominant phyla such as Actinobacteria, Proteobacteria, Acidobacteria, Bacteroidetes, P...

Signaling among rhizobacteria and other soil microorganisms is an important mechanism to ensure a successful symbiotic relationship with their phytobionts. Quorum-sensing involves signaling molecules that provide essential networks for communication in the rhizosphere. These relay inter-and-intra-species information coordinates controls behavior mixed communities, expression of these changes re...

Plants are colonized by various microorganisms in natural environments. While many studies have demonstrated key roles of the rhizosphere microbiota regulating biological processes such as nutrient acquisition and resistance against abiotic biotic challenges, less is known about role phyllosphere how it established maintained. This review provides an update on current understanding community as...