Rhizosphere assisted bioengineering approaches for the mitigation of petroleum hydrocarbons contamination in soil

Singha, L. Paikhomba; Pandey, Piyush

doi:10.1080/07388551.2021.1888066

Cited by 38 publications

(12 citation statements)

References 143 publications

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“…In addition, the application of biosurfactants, as they have a microbial origin, significantly modulates plant growth via synthesizing phytohormones and inducing resistance. Therefore, the efficiency and availability of micronutrients in the soil to the plants might be increased, either due to bioaugmentation of biosurfactant-producing bacteria [ 124 ]. The application of biosurfactants also influences the native microflora of the plants or soil, directly or indirectly responsible for growth promotion, mitigating biotic and abiotic stresses, and removing contaminants from the soil or plant roots.…”

Section: Biosurfactant Applications In Improving the Soil Qualitymentioning

confidence: 99%

Microbial Biosurfactant: A New Frontier for Sustainable Agriculture and Pharmaceutical Industries

Kumar

Singh

Kant³

et al. 2021

Antioxidants

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In the current scenario of changing climatic conditions and the rising global population, there is an urgent need to explore novel, efficient, and economical natural products for the benefit of humankind. Biosurfactants are one of the latest explored microbial synthesized biomolecules that have been used in numerous fields, including agriculture, pharmaceuticals, cosmetics, food processing, and environment-cleaning industries, as a source of raw materials, for the lubrication, wetting, foaming, emulsions formulations, and as stabilizing dispersions. The amphiphilic nature of biosurfactants have shown to be a great advantage, distributing themselves into two immiscible surfaces by reducing the interfacial surface tension and increasing the solubility of hydrophobic compounds. Furthermore, their eco-friendly nature, low or even no toxic nature, durability at higher temperatures, and ability to withstand a wide range of pH fluctuations make microbial surfactants preferable compared to their chemical counterparts. Additionally, biosurfactants can obviate the oxidation flow by eliciting antioxidant properties, antimicrobial and anticancer activities, and drug delivery systems, further broadening their applicability in the food and pharmaceutical industries. Nowadays, biosurfactants have been broadly utilized to improve the soil quality by improving the concentration of trace elements and have either been mixed with pesticides or applied singly on the plant surfaces for plant disease management. In the present review, we summarize the latest research on microbial synthesized biosurfactant compounds, the limiting factors of biosurfactant production, their application in improving soil quality and plant disease management, and their use as antioxidant or antimicrobial compounds in the pharmaceutical industries.

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Section: Biosurfactant Applications In Improving the Soil Qualitymentioning

confidence: 99%

Microbial Biosurfactant: A New Frontier for Sustainable Agriculture and Pharmaceutical Industries

Kumar

Singh

Kant³

et al. 2021

Antioxidants

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“…It is described as the use of plants to remove contaminants from the environment or render them harmless [11]. Phytoremediation of organic substances can occur by phytostimulation, which is the stimulation of microbial biodegradation in the rhizosphere, or the region around plant roots, or via phytotransformation, the plant's absorption and destruction of organic pollutants [12]. This kind of biodegradation is affected by a number of variables, including temperature, amount of acclimatization, and the types and features of the microbe population [13].…”

Section: Introductionmentioning

confidence: 99%

The Employment of Endophytic Bacteria for Phytodegradation of Pyridine

Karaghool

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Pyridine is considered a heterocyclic aromatic chemical that is poisonous and carcinogenic to a variety of living species. The use of plant and endophytic- bacteria to improve the efficiency of pollutants extraction is considered a viable technique since the endophytic bacteria help in the adaptation of the plant itself in various ecosystems and have significant ecological importance because they improve the soil fertility and quality. This research aims to stimulate the pyridine phytodegradation by Phragmites australis plants using the endophytic bacterial strain, Acinetobacter by inoculation these bacterial cells to the plants to see if it might increase plant growth and pyridine phytodegradation. In the present study, the system of pyridine phytodegradation basins with the vertical subsurface flow (VSSF) was adopted, since this system has better ventilation. In addition, the retention time is several hours due to the penetration of water molecules to the layers of packing materials of the basin, which have a relatively high hydraulic conductivity. After conducting the experiments, samples were collected and tests were done to find out the optimum conditions. The results were recorded as 40 plants of P. australis/m2 of VSSF systems; bacterial cells concentration, 250 mg/L; pyridine concentration, 400 mg/L; temperature, 35 °C and pH, 8±2 for 10 hrs incubation duration. As a result, endophytic bacteria can break down toxic organic substances in combination with certain plants. When the endophytic bacterium, Acinetobacter was not used to enhance the role of Phragmites australis plants in the pyridine-phytodegradation process, the rate of phytodegradation was reduced to less than 30% at a pyridine concentration of 700 mg/L, indicating the importance of this endophytic bacterium in the pyridine phytodegradation process.

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“…are some of the commonly studied PAHs-degrading bacteria (Lu et al, 2019 ). Biosurfactant producing microbes are a very important community to make the contaminants available for biodegradation (Gan et al, 2009 ; Singha and Pandey, 2021 ).…”

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confidence: 99%

“…In addition, a detailed systematic compilation of the use of microbial treatments, in-situ and ex-situ biological treatments like bioaugmentation, land-farming, biostimulation, phytoremediation, bioreactor, vermiremediation and generation of value-added by-products during degradation of PAHs has been elaborated, which will be highly useful for scale-up of technologies at commercial level ( Patel et al ). Rhizoremediation is one of the strategies in bioremediation that uses plant-microbe interaction for the removal of higher-molecular-weight PAHs (Singha and Pandey, 2021 ). An ornamental plant, Tagetes erecta L. has been reported to be an efficient rhizoremediator of pyrene, when applied with a non-pathogenic isolate of Klebsiella pneumoniae .…”

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confidence: 99%

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Editorial: Biodegradation of High Molecular Weight Polyaromatic Hydrocarbons in Different Environments

2021

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Rhizosphere assisted bioengineering approaches for the mitigation of petroleum hydrocarbons contamination in soil

Cited by 38 publications

References 143 publications

Microbial Biosurfactant: A New Frontier for Sustainable Agriculture and Pharmaceutical Industries

Microbial Biosurfactant: A New Frontier for Sustainable Agriculture and Pharmaceutical Industries

The Employment of Endophytic Bacteria for Phytodegradation of Pyridine

Editorial: Biodegradation of High Molecular Weight Polyaromatic Hydrocarbons in Different Environments

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