The rhizosphere is a narrow area around plant roots in which root-secreted secondary metabolites and microorganisms co-exist and interact. This area can also be considered as a battle field where beneficial bacteria and deleterious microorganisms compete. Therefore, this specific root area has been a topic of interest for researchers for more than a century. Among the diverse microbial populati...

Rhizoremediation uses root development and exudation to favor microbial activity. Thus it can enhance polycyclic aromatic hydrocarbon (PAH) biodegradation in contaminated soils. Spatial heterogeneity of rhizosphere processes, mainly linked to the root development stage and to the plant species, could explain the contrasted rhizoremediation efficiency levels reported in the literature. Aim of th...

The ability of some soils to suppress plant disease has been well documented 1. An important example is the development of soils suppressive to Gaeumannomyces graminis var. tritici (Ggt), the causative agent of 'takeall' of wheat 2. Such natural examples of biological control have been attributed to the indigenous beneficial rhizosphere microflora (see Glossary), especially fluorescent pseudomo...

Significant quantities of Cd have been added to soils globally due to various anthropogenic activities, posing a serious threat to safe food production and human health. Rhizosphere, as an important interface of soil and plant, plays a significant role in the agro-environmental system. This article presents a review of relationship between root excretion and microorganisms and plant resistance ...

Radix pseudostellariae L. is a common and popular Chinese medication. However, continuous monoculture has increased its susceptibility to severe diseases. We identified two pathogenic microorganisms, Talaromyces helicus M. (KU355274) and Kosakonia sacchari W. (KU324465), and their antagonistic bacterium, Bacillus pumilus Z. in rhizosphere soil of continuously monocultured R. pseudostellariae. N...

The comparative analysis of different taxonomic groups of microorganisms isolated from dark chernozem soils under different agricultures (alfalfa, melilot, sainfoin, soybean, rapeseed) at Almaty region of Kazakhstan was conducted. It was shown that the greatest number of micromycetes was typical to the soil planted with alfalfa and canola. Species diversity of micromycetes markedly decreases as...

Biochar, in addition to sequestering carbon, ameliorating soil, and improving plant performance, can impact foliar and soilborne plant diseases. Nevertheless, the mechanisms associated with suppression of soilborne diseases and improved plant performances are not well understood. This study is designed to establish the relationships between biochar-induced changes in rhizosphere microbial commu...

Treating and utilizing vegetable residues may reduce waste improve rhizosphere soil. This study explored the effects of tomato plant residue compost growth-promoting rhizobacteria (PGPR) on physicochemical properties microbial community ginger field Four treatment procedures were adopted: no or PGPR (CK), (TC), + Bacillus subtilis (TC-BS), +Bacillus amyloliquefaciens SQR9 (TC-BA). The results s...

Aim. Investigate the biological properties of actinomycetes from rhizosphere Colobanthus quitensis (Kunth) Bartl. and study their ability to produce bioactive compounds. Methods. Microbiological (isolation, synthesis compounds), genetic engineering (isolation analysis total DNA, DNA gel electrophoresis, polymerase chain reaction, sequencing), bioinformatic (phylogenetic analysis) methods. Resul...

Microorganisms play a major role in the plant-soil relationship, particularly in the rhizosphere, i.e. the interface between root and soil. Rhizosphere is strongly influenced by the root, through its productions (rhizodeposition) and its respiration, as well as uptake of ions and minerals. In this environment, plant beneficial microorganisms are of peculiar importance: they stimulate plant grow...