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Polyak YM, Bakina LG, Mayachkina NV, Chugunova MV, Bityutskii NP, Yakkonen KL, Shavarda AL. Long-term effects of oil contamination on soil quality and metabolic function. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 46:13. [PMID: 38147148 DOI: 10.1007/s10653-023-01779-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 11/08/2023] [Indexed: 12/27/2023]
Abstract
Widespread soil contamination with oil and the toxicity of petroleum hydrocarbons to soil biota make it extremely important to study microbial responses to oil stress. Soil metabolites reflect the main metabolic pathways in the soil microbial community. The examination of changes in the soil metabolic profile and metabolic function is essential for a better understanding of the nature of the pollution and restoration of the disturbed soils. The present study aimed to assess the long-term effect of oil on the ecological state of the soil, evaluate quantitative and qualitative differences in metabolite composition between soil contaminated with oil and non-contaminated soil, and reveal biologically active metabolites that are related to oil contamination and can be used for contamination assessment. A long-term field experiment was conducted to examine the effects of various oil concentrations on the biochemical properties and metabolic profile of the soil. Podzolic soil contaminated with oil demonstrated the long-term inhibition of soil biological activity and vegetation. Oil affected the metabolic activity of soil fungi increasing the production of toxic metabolites. A metabolomic approach was employed to determine soil metabolites. The metabolite profile was found to vary greatly between oil-contaminated and non-contaminated soils. Carbohydrates had the largest number of metabolites negatively affected by oil, while the content of organic acids, phenolic compounds, and terpenoids was mainly increased in oil-contaminated soil. The evaluation of the long-term impact of oil on microbial metabolism can make a valuable contribution to the assessment of soil quality and the activity of soil microorganisms being under stress from oil pollution. The results contribute to a further understanding of the role of microorganisms in the ecological functions of contaminated soil, which can be useful in the development of rehabilitation strategies for disturbed sites.
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Affiliation(s)
- Yulia M Polyak
- St. Petersburg Federal Research Center of the Russian Academy of Sciences, St. Petersburg Scientific Research Centre for Ecological Safety of the Russian Academy of Sciences, St. Petersburg, Russia.
| | - Lyudmila G Bakina
- St. Petersburg Federal Research Center of the Russian Academy of Sciences, St. Petersburg Scientific Research Centre for Ecological Safety of the Russian Academy of Sciences, St. Petersburg, Russia
| | - Natalya V Mayachkina
- St. Petersburg Federal Research Center of the Russian Academy of Sciences, St. Petersburg Scientific Research Centre for Ecological Safety of the Russian Academy of Sciences, St. Petersburg, Russia
| | - Marina V Chugunova
- St. Petersburg Federal Research Center of the Russian Academy of Sciences, St. Petersburg Scientific Research Centre for Ecological Safety of the Russian Academy of Sciences, St. Petersburg, Russia
| | | | | | - Alexey L Shavarda
- Saint Petersburg State University, St. Petersburg, Russia
- Komarov Botanical Institute, Saint Petersburg, Russia
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Bhadrecha P, Singh S, Dwibedi V. 'A plant's major strength in rhizosphere': the plant growth promoting rhizobacteria. Arch Microbiol 2023; 205:165. [PMID: 37012531 DOI: 10.1007/s00203-023-03502-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/18/2023] [Accepted: 03/22/2023] [Indexed: 04/05/2023]
Abstract
Human activities, industrialization and civilization have deteriorated the environment which eventually has led to alarming effects on plants and animals by heightened amounts of chemical pollutants and heavy metals in the environment, which create abiotic stress. Environmental conditions like drought, salinity, diminished macro-and micro-nutrients also contribute in abiotic stress, resulting in decrement of survival and growth of plants. Presence of pathogenic and competitive microorganisms, as well as pests lead to biotic stress and a plant alone can not defend itself. Thankfully, nature has rendered plant's rhizosphere with plant growth promoting rhizobacteria which maintain an allelopathic relationship with host plant to defend the plant and let it flourish in abiotic as well as biotic stress situations. This review discusses the mechanisms behind increase in plant growth via various direct and indirect traits expressed by associated microorganisms in the rhizosphere, along with their current scenario and promising future for sustainable agriculture. It also gives details of ten such bacterial species, viz. Acetobacter, Agrobacterium, Alcaligenes, Arthrobacter, Azospirillum, Azotobacter, Bacillus, Burkholderia, Enterobacter and Frankia, whose association with the host plants is famed for enhancing plant's growth and survival.
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Affiliation(s)
- Pooja Bhadrecha
- University Institute of Biotechnology, Chandigarh University, Mohali, Punjab, 140413, India
| | - Shilpy Singh
- Department of Biotechnology and Microbiology, School of Sciences, Noida International University, Gautam Budh Nagar, Gautam Budh Nagar, Uttar Pradesh, 203201, India
| | - Vagish Dwibedi
- University Institute of Biotechnology, Chandigarh University, Mohali, Punjab, 140413, India.
- Thapar Institute of Engineering and Technology, Department of Biotechnology, 147004, PATIALA, India.
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Effects of Exogenous Phthalic Acid on Seed Germination, Root Physiological Characteristics, and Mineral Element Absorption of Watermelon. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8030235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
To understand the effect of exogenous PA on the watermelon root system, the watermelon variety ‘Zaojia 84–24’ was used as experimental material. This study investigated the effects of allelochemicals DIBP and DOP at varying different concentrations (0, 0.05, 0.1, 0.5, 1, and 4 mmol·L−1) on the physiological characteristics and mineral content of watermelon roots. The results revealed that proper PA treatment concentrations (0.05~0.1 mmol·L−1) promoted seed germination, increased the number of RBCs and the survival rate of RBCs, and enhanced the activities of PME and dehydrogenase in watermelon roots. In addition, proper PA treatment concentrations (0.05~0.1 mmol·L−1) promoted the activities of SOD, POD, CAT, and NR in watermelon roots. The contents of MDA and soluble protein were increased at 0.05~4 mmol·L−1 PA. In addition, proper PA treatment concentrations promoted the absorption and accumulation of P, K, Ca, Fe, Cu, and Zn elements in watermelon roots. These results indicate that PA at a concentration of 0.05~0.5 mmol·L−1 can promote watermelon seed germination, improve antioxidant enzyme activity of watermelon roots, and maintain normal physiological activities of watermelon by affecting absorption and accumulation of mineral elements in the root system.
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Effect of β-cyclodextrin/polydopamine composite modified anode on the performance of microbial fuel cell. Bioprocess Biosyst Eng 2022; 45:855-864. [PMID: 35230555 DOI: 10.1007/s00449-022-02703-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/28/2022] [Indexed: 11/02/2022]
Abstract
The relatively weak microbial adhesion is a bottleneck in improving the power generation performance of microbial fuel cell (MFC). Anode modification is a simple and effective method to solve this problem. A new type of β-cyclodextrin/polydopamine modified carbon felt anode was prepared, and the effects of β-cyclodextrin/polydopamine modified anode on the main performance indexes such as power density and chemical oxygen demand (COD) removal rate of MFC were evaluated. The maximum power density and the output electric energy during the test period of MFC using the modified anode were 102 mW/m2 and 84.96 J, which were 364% and 295.3% higher than those of MFC with conventional carbon felt anode, respectively; and the COD removal rate was 124.4% higher than that of MFC with unmodified anode. Modifying the anode with β-cyclodextrin-polyacyclic composite materials is an effective method to improve the overall performance of MFC.
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Bakina LG, Polyak YM, Gerasimov AO, Mayachkina NV, Chugunova MV, Khomyakov YV, Vertebny VA. Mutual effects of crude oil and plants in contaminated soil: a field study. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:69-82. [PMID: 34014452 DOI: 10.1007/s10653-021-00973-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
The effect of oil contamination on growth of mono- and dicotyledonous plants (clover and ryegrass), on the one hand, and the effect of plants on oil biodegradation in soil, on the other hand, were studied in a long-term field experiment. It was found that plants respond differently to oil contamination of soddy-podzolic soil. Clover was more resistant to oil than ryegrass. Biosynthesis of photosynthetic pigments (chlorophylls and carotenoids) was not disturbed in clover, and the plant yield was fully restored by the end of the third growing season. The content of oxidative enzymes in clover leaves was 2-10 times higher than in ryegrass. Biological activity of soil planted with clover was 1.5-2 times higher correlating with the biochemical parameters of plants. Higher basal respiration in soil planted with clover corresponded to the enhanced oil biodegradation. The differences in the carbon of oil products between soils planted with clover and ryegrass appeared at the end of the third growing season at high doses of oil (5 and 10 L m-2).
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Affiliation(s)
- L G Bakina
- Scientific Research Centre for Ecological Safety of Russian Academy of Sciences, 18 Korpusnaya str, Saint-Petersburg, Russia, 197110
| | - Y M Polyak
- Scientific Research Centre for Ecological Safety of Russian Academy of Sciences, 18 Korpusnaya str, Saint-Petersburg, Russia, 197110.
| | - A O Gerasimov
- Scientific Research Centre for Ecological Safety of Russian Academy of Sciences, 18 Korpusnaya str, Saint-Petersburg, Russia, 197110
| | - N V Mayachkina
- Scientific Research Centre for Ecological Safety of Russian Academy of Sciences, 18 Korpusnaya str, Saint-Petersburg, Russia, 197110
| | - M V Chugunova
- Scientific Research Centre for Ecological Safety of Russian Academy of Sciences, 18 Korpusnaya str, Saint-Petersburg, Russia, 197110
| | - Y V Khomyakov
- Agrophysical Research Institute, 14 Grazhdanskiy pr., Saint Petersburg, Russia, 195220
| | - V A Vertebny
- Agrophysical Research Institute, 14 Grazhdanskiy pr., Saint Petersburg, Russia, 195220
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Polyak YM, Sukharevich VI. Detection and Regulation of Antagonistic Properties of the Soil Actinomycete Streptomyces sp. 89. BIOL BULL+ 2021. [DOI: 10.1134/s1062359021050125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Polyak Y, Bakina L, Mayachkina N, Polyak M. The possible role of toxigenic fungi in ecotoxicity of two contrasting oil-contaminated soils - A field study. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110959. [PMID: 32800231 DOI: 10.1016/j.ecoenv.2020.110959] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 06/22/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Abstract
Long-term field experiments were performed to evaluate the phytotoxic properties of fungal metabolites in oil-contaminated soil and to assess the impact of contamination on the allelopathic activity of soil mycobiota. Two contrasting soils of Northwest Russia (sandy and loamy podzols) exposed to oil contamination underwent changes in abundance and allelopathic activities of soil fungi. Shifts within the microbial community caused by oil contamination affected not only oil-decomposition rates but also ecotoxicity of contaminated soil. There were significant differences in soil toxicity dynamics between sandy and loamy podzols. Four years after contamination, ecotoxicity of loamy podzol decreased, whereas sandy podzol remained highly toxic even nine years after contamination. The abundance and allelopathic activity of fungi is correlated with hydrocarbon degradation dynamics. The soil fungal community demonstrated high allelopathic activity which decreased over time in fertile loamy podzolic soil, whereas in poor sandy podzolic soil it remained high over the nine-year monitoring period. The results illustrate how oil contamination may influence allelopathic interactions in soil and demonstrate the advantage of using fungal metabolite toxicity test for testing of oil-contaminated soil samples.
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Affiliation(s)
- Yulia Polyak
- Institution of Russian Academy of Sciences Saint-Petersburg Scientific Research Centre for Ecological Safety RAS, Saint-Petersburg, 197110, Russia.
| | - Lyudmila Bakina
- Institution of Russian Academy of Sciences Saint-Petersburg Scientific Research Centre for Ecological Safety RAS, Saint-Petersburg, 197110, Russia
| | - Natalya Mayachkina
- Institution of Russian Academy of Sciences Saint-Petersburg Scientific Research Centre for Ecological Safety RAS, Saint-Petersburg, 197110, Russia
| | - Mark Polyak
- St. Petersburg State University of Aerospace Instrumentation, Saint-Petersburg, 190000, Russia
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Adeleke BS, Babalola OO. The endosphere microbial communities, a great promise in agriculture. Int Microbiol 2020; 24:1-17. [PMID: 32737846 DOI: 10.1007/s10123-020-00140-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/20/2020] [Accepted: 07/24/2020] [Indexed: 12/20/2022]
Abstract
Agricultural food production and sustainability need intensification to address the current global food supply to meet human demand. The continuous human population increase and other anthropogenic activities threaten food security. Agrochemical inputs have long been used in conventional agricultural systems to boost crop productivity, but they are disadvantageous to a safe environment. Towards developing environmentally friendly agriculture, efforts are being directed in exploring biological resources from soil and plant microbes. The survival of the rhizosphere and endosphere microbiota is influenced by biotic and abiotic factors. Plant microbiota live interdependently with the host plants. Endophytes are regarded as colonizer microbes inhabiting and establishing microbial communities within the plant tissue. Their activities are varied and include fixing atmospheric nitrogen, solubilizing phosphate, synthesis of siderophores, secretion of metabolite-like compounds containing active biocontrol agents in the control of phytopathogens, and induced systemic resistance that stimulates plant response to withstand stress. Exploring beneficial endophyte resources in the formulation of bio-inoculants, such as biofertilizers, as an alternative to agrochemicals (fertilizers and pesticides) in developing environmentally friendly agriculture and for incorporation into crop breeding and disease control program is promising. Therefore, in this review, endosphere microbial ecology, associating environmental factors, and their roles that contribute to their effectiveness in promoting plant growth for maximum agricultural crop productivity were highlighted.
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Affiliation(s)
- Bartholomew Saanu Adeleke
- Food Security and Safety Niche Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho, 2735, South Africa
| | - Olubukola Oluranti Babalola
- Food Security and Safety Niche Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho, 2735, South Africa.
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