Characterization of Soil Bacteria with Potential to Degrade Benzoate and Antagonistic to Fungal and Bacterial Phytopathogens

Abstract

The intensive development of agriculture leads to the depletion of land and a decrease in crop yields and in plant resistances to diseases. A large number of fertilizers and pesticides are currently used to solve these problems. Chemicals can enter the soil and penetrate into the groundwater and agricultural plants. Therefore, the primary task is to intensify agricultural production without causing additional damage to the environment. This problem can be partially solved using microorganisms with target properties. Microorganisms that combine several useful traits are especially valuable. The aim of this work was to search for new microbial strains, which are characterized by the ability to increase the bioavailability of nutrients, phytostimulation, the antifungal effect and the decomposition of some xenobiotics. A few isolated strains of the genera Bacillus and Pseudomonas were characterized by high activity against fungal phytopathogens. One of the bacterial strains identified as Priestiaaryabhattai on the basis of the 16S rRNA gene sequence was characterized by an unusual cellular morphology and development cycle, significantly different from all previously described bacteria of this genus. All isolated bacteria are capable of benzoate degradation as a sign of the ability to degrade aromatic compounds. Isolated strains were shown to be prospective agents in biotechnologies.

Molecular Biodiversity of Bacteria Isolated from Medicago sativa Rhizosphere in Haʼil District, Saudi Arabia

“…For example, Priestia aryabhattai degrades benzoate as a sign of the ability to degrade aromatic compounds which can be useful in fertilizers and pesticide degradation. The presence of like these soil bacteria which contain ligninolytic enzymes and tyrosinase may indicate an active role they play in soil fertility (34). It is able to degrade organophosphorus compounds (OPs) used as effective insecticides.…”

“…Recently, for the development of biological products, preference has been given to strains that combine such useful properties as the biocontrol of phytopathogens and stimulation of plant growth, as well as the ability of the biodegradation of xenobiotics (34). In addition to the role, the isolates in this study are expected to play in the environment, Massilia spp.…”

Copiotrophs dominate rhizosphere microbiomes and growth rate potential is a major factor explaining the rhizosphere effect

“…One of the top five features associated with soil bacteria is aerobic carbon-monoxide dehydrogenase (K03518), an enzyme involved in metabolizing atmospheric carbon monoxide molecules in biomes with carbon limitation, such as soil [56]. Benzoate degradation is frequently reported in soil bacteria [57], where these abundant aromatic compounds probably are a major carbon source. The glyoxylate cycle may allow soil bacteria to cope with sugar scarcity, as has been shown in another carbon-depleted environment, the marine system [58].…”

Antagonistic activity of the native strain of Pseudomonas chlororaphis 3 of the Belgorod region against the bacterium of the genus Ralstonia

“…The aim of this work is to evaluate the antagonistic activity of the native strain of the Belgorod region Pseudomonas chlororaphis 3 [4] against a representative of the genus Ralstonia.…”