Rhizosphere and Endophytic Bacteria Associated to Ocimum basilicum L. with Decaclorobiphenyl Removal Potential

Sánchez-Pérez, Blanca Nelly; Zenteno-Rojas, Adalberto; Rincón-Molina, Clara Ivette; Gutiérrez-Miceli, Federico Antonio; Vences‐Guzmán, Miguel Ángel; Villalobos-Maldonado, Juan José; Rincón-Rosales, Reiner

doi:10.1007/s11270-020-04481-6

Cited by 9 publications

(3 citation statements)

References 45 publications

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“…Similarly, Chun et al [31] evaluated the biostimulation of autochthonous micro-organisms through electrical potential to provide electron donors and acceptors in the degradation of PCBs, finding substantial increases between 40 and 60% degradation. Bhattacharya et al [32] induced cells of the PCB-degrading strain Burkholderia xenovorans LB400 with 4-chlorobiphenyl, reaching up to 98% degradation, and Sánchez-Pérez et al [16] demonstrated the importance of adapting bacterial strains to culture media enriched with phenol and PCBs to increase the assimilation capacity of PCB-209. In bioaugmentation processes, the biodegradation rate is improved, increasing the biomass of the degrading bacteria [27,33].…”

Section: Discussionmentioning

confidence: 99%

“…We examined vermicomposting systems and symbiotic bacteria from the earthworm Eisenia fetida and found that large amounts of PCB-209 could be removed [15]. Likewise, rhizospheric and endophytic bacteria associated with the Ocimun basilicum plant had the ability to remove up to 500 mg/L of PCB-209 [16]. From another study, in agricultural and forest soils contaminated with PCBs, we isolated bacteria classified within the genera Burkholderia, Bacillus, Acinetobacter, Comamonas, and Cupriavidus, which showed high efficiency in removing and degrading PCB-209 as well as Aroclor 1260 (mixture of PCBs) [6].…”

Section: Introductionmentioning

confidence: 99%

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Biostimulation and Bioaugmentation of Soils Contaminated with Decachlorobiphenyl (PCB-209) Using Native Bacterial Strains Individually and in Consortia

et al. 2022

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Historically, microorganisms have proven to be efficient alternatives for the removal of PCBs, since these contaminants continue to be a major problem for human health and the environment. In this work, the removal of decachlorobiphenyl (PCB-209) was evaluated using native bacterial strains individually and in consortia through biostimulation and bioaugmentation processes. Bacillus sp. DCB13, Staphylococcus sp. DCB28, and Acinetobacter sp. DCB104 were biostimulated in a minimal medium that initially contained biphenyl and later PCB-209 for adaptation as a carbon source. The removal potential of PCB-209 by bacterial strains was evaluated in a bioaugmentation process under aerobic conditions. Using a completely randomized design, ten different treatments were evaluated. Finally, the bacterial growth (CFU/g of soil) and the chemical characteristics of the bioaugmented soil were determined, as was the content of PCB-209 removed by gas chromatography–mass spectrometry. Strains DCB13, DCB28, and DCB104 showed cell growth (>3.4 × 105 CFU/mL) during 120 h of biostimulation, with a marked difference between treatments with biphenyl compared with those where PCB-209 was added. Strains DCB13 and DCB104 (3.4 × 105 CFU/mL and 2.0 × 106 CFU/mL, respectively) grew better with PCB-209, while DCB28 grew better with biphenyl (4.5 × 106 CFU/mL). In bioaugmented soils contaminated with PCB-209, the strains showed maximum growth when inoculated in a consortium (>2.0 × 104 CFU/g). The results showe that the range of the bacterial elimination of PCB-209 in the treatments was from 9.58 to 17.33 mg/kg. The highest elimination potential of PCB-209 was obtained when the bacterial strains were inoculated in a consortium. These findings open a wide perspective for the use of native bacteria for the cleaning and restoration of soils contaminated by toxic chemicals.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biostimulation and Bioaugmentation of Soils Contaminated with Decachlorobiphenyl (PCB-209) Using Native Bacterial Strains Individually and in Consortia

et al. 2022

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“…MOE2 Li et al ( 2011 ) 2 Chlorpyrifos Phragmites australis Nymphaea alba Myriophyllum verticillatum Planktonic bacterial communities Xu et al ( 2018b ) 3 Carbon dioxide Vallisneria natans Pseudomonas putida KT2440 Gan et al ( 2018 ) 4 Fe, Mn, Ni, Pb, and Cr Brachia mutica , Typha domingensis , Phragmites australis and Leptochala fusca Aeromonas salmonicida , Pseudomonas indoloxydans , Bacillus cerus , Pseudomonas gessardii , and Rhodococcus sp. Shahid et al ( 2020 ) 5 Benzene Syngonium podophyllum , Sansevieria trifasciata , Euphorbia milii , Chlorophytum comosum , Epipremnum aureum , Dracaena sanderiana , Hedera helix , and Clitoria ternatea Enterobacter EN2, Cronobacter EPL1, and Pseudomonas EPR2 Sriprapat and Thiravetyan ( 2016 ) 6 Decaclorobiphenyl PCB-209 by Ocimum basilicum L Acinetobacter, Bacillus, Lysinibacillus, Novosphingobium, Pseudomonas, Rhizobium, Sphingobium, Stenotrophomonas,and Terribacillus as well as bacterial strains Pseudomonas taiwanensis BS-1, Rhizobium nepotum BS-2, Terribacillus sacharophilus BS-3, Stenotrophomonas rhizophila BS- 4, Bacillus arybhattai BS-5, and Lysinibacillus macroides BS-6 Sánchez-Pérez et al ( 2020 ) 7 Nitrogen Eichhornia crassipes Elodea nuttallii Immobilized nitrogen cycling bacteria (INCB) Chang et al ( 2006 ) 8 Carbamazepine (CBZ) Armoracia rusticana …”

Section: Enhanced Removal Of Excess Nutrients/pollutants In Aquatic Environmentmentioning

confidence: 99%

Enhanced remediation of pollutants by microorganisms–plant combination

Supreeth

2021

Int. J. Environ. Sci. Technol.

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The pollutants have become ubiquitous in the total environment (water, soil and air) due to human activities and they are hazardous to all forms of life on the earth. This problem has made scientists focus on mitigating or complete reduction in pollutants by several means. Microorganism and plants are known to scavenge pollutants. Both are studied enormously in reducing, refining, and removing pollutants from the environment successfully. But, their slow process for removal is disadvantage. However, according to recent advancements in the abatement of pollutants, a combined system of both microorganisms and plant has shown to enhance the remediation of pollutants to an efficient level. In a nutrient-depleted pollutant-rich environment, when suitable plant and microorganisms are introduced, the plant interacts with the rhizosphere and root associate with microorganisms to survive in toxic conditions. The chemicals released by plants signal the microorganisms for interactions. This interaction leads in higher germination efficiency and enhanced root elongation which results in enhanced degradation of pollutants in both rhizosphere and phyllosphere. In this background, the current review article provides an overview of the recent advancement in microorganisms plant combined systems in enhanced removal of several recalcitrant pollutants. The conclusion highlights the challenges and future perspectives in this area of research.

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Plant and Microbe Association for Degradation of Xenobiotics Focusing Transgenic Plants

Sharma

Bakshi

Khanna

et al. 2021

Handbook of Assisted and Amendment: Enhanced Sustainable Remediation Technology

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Rhizosphere and Endophytic Bacteria Associated to Ocimum basilicum L. with Decaclorobiphenyl Removal Potential

Cited by 9 publications

References 45 publications

Biostimulation and Bioaugmentation of Soils Contaminated with Decachlorobiphenyl (PCB-209) Using Native Bacterial Strains Individually and in Consortia

Biostimulation and Bioaugmentation of Soils Contaminated with Decachlorobiphenyl (PCB-209) Using Native Bacterial Strains Individually and in Consortia

Enhanced remediation of pollutants by microorganisms–plant combination

Plant and Microbe Association for Degradation of Xenobiotics Focusing Transgenic Plants

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