> Unaugmented (control) planted soils. Residual TPH decreased in all contaminated soils with time. Chindah and Braide 42 in a study on the effect of oil spill on crop production in the Niger Delta reported that oil spill on crops caused great damage to the plant community due to high retention time of oil occasioned by limited flow. May 2020; ... a number of biotic and abiotic factors. Microbial associations. 0000010869 00000 n Soil PH (H-ion Concentration) 8. were no significant difference occurred (P ˂ 0.05). With the exception of P. vulgaris and A. hypogaea, plant germination was delayed with increased concentration of oil. 0000003322 00000 n The natural Niger Delta environment we inherited from our forebears was an environment rich in bio diversity, varied species of wild life, dense population of marine and aquatic life, in fresh and salt water bodies, with rich mangrove and fresh water vegetation, flamboyant raffia and shrubs. Pertinent biodegradation rates were recalculated on the basis of the stoichiometric reaction (mass balance equation) and conversion equation. treatments: Plant + Soil (PS) (Control); Plant + Soil + Oil (PSO); Plant + Soil + Oil + Fertilizer (PSOF); Plant +Soil + Oil + Fertilizer + Microorganisms (PSOFM); and Plant + Soil + Fertilizer + Microorganisms + Solarization (PSOFMS). Soil microbial communities play an important role in supplying essential nutrients to plants by decomposing various organic matters. Soil temperature 5. Isolated bacterial response to cadmium toxicity was tested at cadmium concentrations of 0.01, 0.1, 1.0 and 10 mg/L. To cushion this suppressive effects, plants were subjected to the following treatments: Plant + Soil (PS) (Control); Plant + Soil + Oil (PSO); Plant + Soil + Oil + Fertilizer (PSOF); Plant +Soil + Oil + Fertilizer + Microorganisms (PSOFM); and Plant + Soil + Fertilizer + Microorganisms + Solarization (PSOFMS). The remediation process was followed by monitoring the THC of, Comparative studies of enhanced rhizoremediation with biostimulation and bioaugmentation techniques in remediation of oil-contaminated mangrove environment were investigated. Mycelia extensional growth and minimum sporulation time of isolated HUF on PDA and OMA were also The results showed that combined treatment (indigenous bacteria bioaugmentation + addition of a surfactant) was the most effective method of biodegradation enhancement as the 20-fold increase of biodegradation rate was observed. There were 44.4, 71.8, 74.7, and 67.5, and 50.5, 71.8, 82.3, and 71.8% reduction in residual TPH in soil planted with P. australis and E. crassipes respectively for treatments PSO, PSOF, PSOFM, and PSOFMS as against 20.0, 62.6, 67.5, and 67.5% losses in SO, SOF, SOFM, and SOFMS. Same was done for uninoculated contaminated control. 23%, 36. in the root zones (rhizosphere and rhizoplane) and non-rhizosphere soil of S. officinarum were assessed quantitatively In total of 102 articles containing data on Shannon bacterial diversity and bacterial community composition (relative abundance of major groups) were obtained from our literature search (Data Sheet S1 for complete list of studies). The bioaugmented biopile system led to a total petroleum hydrocarbon (TPH) reduction of 77% over 156 days while the system with polyoxyethylene (20) sorbitan monooleate (Tween 80) gave a 56% decrease in TPH. Results show that in Treatment 1, the degradation rate of petroleum was 67. 67%, respectively, with sunflower, cotton, bermuda grass, and sudan grass; and in Treatment 3 (cotton + microorganisms) it reached as high as 85. The soil had a pH that was, belonged to seven genera while 13 of, With the exception of the uncontaminated, TPH in soil was reduced from 7050 mg/kg at, Table 2: Culturable heterotrophic bacteria and fungi isolated from, Isolates with superscript symbol (†) are hydrocarbon utilizing organism. Keywords: Autochthonous; bioaugmentation; crude oil; hydrocarbon utilizing microorganisms; Niger Delta; remediation. 3 † Aspergillus sp. Results obtained were analysed with a 2-Factor Analysis of Variance Excel tool for data analysis. This community is a host to a major oil company in Nigeria. Individual Soil microbial community structure represents a complex and variable association among different levels of biological organizations [9]. 20 cm depth soils from this site were randomly collected (using soil … Abstract: The effectiveness of bioaugmentation using a consortium of indigenous hydrocarbon utilizing microorganisms in conjunction with NPK fertilization for localized remediation of crude-oil polluted rainforest soil was investigated by subjecting soil to these treatments: soil (S); soil + oil (SO); soil + oil + fertilizer (SOF); soil + oil + fertilizer + microorganisms (hydrocarbon utilizing bacteria and fungi) (SOFM); soil + oil + fertilizer + microorganisms (hydrocarbon utilizing bacteria and fungi) + solarisation (SOFMS). 67%. contaminated soil under different treatment. level. Bacterial isolates with high tolerance and sorption capacity were subsequently inoculated as consortium and individually into duplicate soils samples planted with elephant grass containing 4000 g of soil in pots at concentration of 6.118 mg/Kg of cadmium. 0000012241 00000 n Factors affecting the population trend of biodiversity in the Niger Delta region of Nigeria. 3Department of Biological Sciences, Faculty of Science, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria Abstract: Some environmental effects of flooding in the Niger Delta region of Nigeria was reviewed to provide the desired knowledge needed for the effective management of flooding. Light 7. The two main drivers of soil microbial community structure, i.e., plant type and soil type, are thought to exert their function in a complex manner. 2018;3(3):199‒207. Keywords: Oil spillage, Soil properties, Petroleum marketing outlets, Environment, Non-spillage affected soils. Whiteman, W., Goodfellow, M., Kampfer, ... Where, C i = Initial cadmium concentration, C f = Final cadmium concentration Determination of the effect of augmentation with rhizospheric bacteria on the removal of cadmium from soil The method described by, The effect of water hyacinth on the remediation of crude oil contaminated soil was studied ex-situ for 1.5, 3.0 and 4.5% crude oil contaminated soil (Heavy Crude) obtained from the Niger Delta region. 0000013632 00000 n 0000003611 00000 n Soil microbial processes are mediated by enzymes and thus are affected by environmental factors affecting enzymatic activities, such as temperature, water content, pH, and seasonality, but also by factors affecting diversity and abundance of microorganisms, such as nutrient availability, amount of soil organic matter, or presence of the symbiotic tree. In this article, we reviewed the consequence, effects, and impact of air pollution in the Niger Delta region of Nigeria. 0000006217 00000 n The intrinsic and enhanced hydrocarbons biodegradation rates were estimated from the slopes of linear regressions of cumulative curves of O-2 uptake. p> P. australis , E. crassipes (in mangrove swamp) and S. officinarum (in rainforest) are capable of tolerating some levels of crude oil in soil. The soil is alluvial formed by water deposits. significantly higher than their corresponding HUF populations (P ˂ 0.05). 0000013610 00000 n 0000001590 00000 n Thus, growth of these plants can be enhanced in crude oil contaminated soil by the above treatments for efficient rhizoremediation.> endobj xref 35 40 0000000016 00000 n H�b```f``����� t�A��X��,-`n'��V,³Y\P``�,�Ұ���Q����� ��pI s�ż)��3�r� After a period of 10 weeks, bean seeds were planted on the remediated soil to observe if these various cells would sustain plant growth for the first 15 days. 0000003550 00000 n Bioaugmentation + addition of a surfactant was applied as the combined treatment. This paper evaluates health risk communication in the oil rich Niger Delta region of Nigeria. Crude oil spills endanger fish hatcheries in coastal water and also contaminate valuable fish. 0000018938 00000 n The survival of these plants in oil-contaminated soils indicates that they could be used for rhizoremediation in the Niger Delta. The control system gave 4% TPH reduction. 0000012219 00000 n > Azosprillum sp. The exploitation and exploration of oil therefore not only are a source of revenue for the country but also contributed greatly to the pollution of the environment and the need to collect the gas for effective utilization. Overall, growth enhancement efficiencies of the applied treatments were in the order: PSOFM ˃ PSOF ˃ PSOFMS. The freshwater input of restoration projects induced a soil microbial community shift to the increased relative abundance of fungi and decreased relative abundance of Desulfovibrio bacteria. Materials and Methods: Total fungi (TF) and hydrocarbon utilizing fungi (HUF) However, some important growth characteristics such speedy growths, extensive root system and increased biomass desirable for efficient rhizoremediation are depressed. This community is a host to a major oil company in Nigeria. To cushion this suppressive effects, plants were subjected to the following, Backgroud of Study ENHANCED BIO-REMOVAL OF CADMIUM FROM CONTAMINATED SOIL BY AUGMENTATION USING ELEPHANT GRASS RHIZOPHERIC BACTERIA, Growth Enhancement of Phragmites australis, Eichhornia crassipes and Saccharum officinarum for Rhizoremediation of Crude Oil, The Interaction between Plants and Bacteria in the Remediation of Petroleum Hydrocarbons: An Environmental Perspective, Economics and environmental impacts of oil exploration and exploitation in Nigeria, Bioremediation of Crude Oil Contaminated Desert Soil: Effect of Biostimulation, Bioaugmentation and Bioavailability in Biopile Treatment Systems, Bioaugmentation and biostimulation: a potential strategy for environmental remediation, Microbial Response to Varying Concentrations of Crude Oil Pollution of Agricultural Soils in Ondo State, Nigeria, Bergey’s Manual® of Systematic Bacteriology: Volume Two The Proteobacteria Part B The Gammaproteobacteria, Bioaugmentation as a stratergy for cleaning up soils contaminated with aromatic compounds, Effect of plants and microorganisms on remediation of petroleum contaminated soil, Bio-remediation of a crude oil contaminated soil using water hyacinth (Eichhornia crassipes), Characterization of Crude Oil Contaminated Soils in Niger Delta Nigeria. 0000059527 00000 n The Niger Delta ecosystem plays an essential role in the sustenance of the Nigerian economy. Cultural practices 3. Enhanced rhizoremediation was more effective than biostimulation and bioaugmentation techniques. Mycelia extensional growth rate of HUF were faster on PDA than OMA for all tested Corresponding treatments having different number of (*) for bacteria and fungi differ significantly (n = 5, Student's t-Test, P ˂ 0.05). In this review, evidence from traditional and modern omics technologies is discussed to provide a framework for plant-microbe interactions during PHCs remediation. In return, plant-associated microorganisms improve plant growth by reducing soil toxicity through contaminant removal, producing plant growth promoting metabolites, liberating sequestered plant nutrients from soil, fixing nitrogen, and more generally establishing the foundations of soil nutrient cycling. With in defined limits biological activity increases with increasing temperature. T. viride had the fastest mycelia extensional growth rate (0.59 and 0.41 mm/h) on PDA and OMA The addition of Tween 80 led to a respiration rate that peaked in 48 days compared to 88 days for the bioaugmented system and respiration declined rapidly due to nitrogen depletion. than in bulk soil. 0000001147 00000 n Nature of soil and 11. 0000010373 00000 n Soil microorganisms, prokaryotics and eukaryotics, spend all or part of their lives in the soil environment [9]. All rights reserved. heavier fractions will accumulate in the sediment at bottom of the water, which may affect bottom-feeding fish and organisms. 0000010891 00000 n 0000014953 00000 n Ekundayo, E. 2004-10-05 00:00:00 EFFECT OF COMMON PESTICIDES USED IN THE NIGER DELTA BASIN OF SOUTHERN NIGERIA ON SOIL MICROBIAL POPULATIONS E. O. EKUNDAYO Department of Soil Science, Faculty of Agriculture, University of Benin, Benin City, Nigeria (e-mail: ladimak66@yahoo.com) (Received 13 March 2002; accepted 21 October 2002) Abstract. Soil aeration 6. 2 Aspergillus sp. Treatments were monitored for 120 days to determine their effects on the following growth parameters: Germination, germination percentage, height, and root length, dry weight, and leaf area. Int J Avian & Wildlife Biol. This review focuses on phytoremediation with particular interest on the interactions between and use of plant – associated bacteria to restore PHC polluted sites. It concluded that in spite of the continuing deterioration of the crisis into anarchy, terror The Niger Delta extends from longitude 3.5E to 8.45E and latitude 4.5N to 5.65N and covers an area of approximately 36, 260km2 (i.e. Enhanced rhizoremediation of crude oil–contaminated mangrove swamp soil using two wetland plants (Ph... Growth Enhancement of Phragmites australis, Eichhornia crassipes and Saccharum officinarum for Rhizo... Assessment of the Hydrocarbon Utilizing Mycoflora of the Root Zones of Saccharum Officinarum, Growth and tolerance evaluation of selected plants to crude oil contamination in the Niger Delta, E Ffectiveness of Intrinsic Biodegradation Enhancement in Oil Hydrocarbons Contaminated Soil. and thus, its remediation. These were studied comparatively for 120 days for culturable (aerobic, mesophilic) heterotrophic and hydrocarbon-utilizing microbial populations, and soil residual TPH. Contaminated soils at 7190 mg/kg of oil were subjected to the following treatments: soil (S), soil + oil (SO), soil + oil + fertilizer (NPK) (SOF), soil + oil + fertilizer + microorganisms (SOFM), soil + oil + fertilizer +, p> P. australis , E. crassipes (in mangrove swamp) and S. officinarum (in rainforest) are capable of tolerating some levels of crude oil in soil. Rhizosphere effect for TF was 3.1-fold Data were collected and analyzed on the volume of gas produced and flared in Nigeria between 1970 and 2010; also collected are the barrels of oil produced between 1970 and 2020 and the average price of barrel oil and gallon of gas between the said period. Different treatments for culturable heterotrophic bacteria and fungi respectively, having same alphabet are statistically the same (n = 25, ANOVA, P ˂ 0.05). The delta covers 20,000 km² within wetlands of 70,000 km² formed primarily by sediment deposition. This was assessed for S. officinarum. 0000007517 00000 n contamination for a 120-day period to determine the influence of oil on plant germination, height, root length, leaf area growth and survival/death time. Mechanistically, there remain biological unknowns that present challenges for applying bio- and phyto-remediation technologies without having a deep prior understanding of individual target sites. ��@�xttt M�@"���HE��@����> ���`1�����W3e8� ttk ���p�a?#3�e ߃�.�- -��@,�_��`1�ܿQJ1�E�1��f��d��Km`8༇� #/���i& �0 ~�R� endstream endobj 74 0 obj 258 endobj 37 0 obj << /Type /Page /Parent 32 0 R /Resources 38 0 R /Contents [ 45 0 R 47 0 R 49 0 R 55 0 R 59 0 R 61 0 R 63 0 R 65 0 R ] /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 38 0 obj << /ProcSet [ /PDF /Text ] /Font << /TT2 39 0 R /TT4 40 0 R /TT6 52 0 R /TT8 53 0 R /TT10 57 0 R >> /ExtGState << /GS1 67 0 R >> /ColorSpace << /Cs6 43 0 R >> >> endobj 39 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 181 /Widths [ 250 0 0 0 0 833 0 0 333 333 500 564 250 333 250 278 500 500 500 500 500 500 500 500 500 500 278 278 564 0 564 444 921 722 667 667 722 611 556 722 722 333 389 722 611 889 722 722 556 0 667 556 611 722 722 944 0 722 611 0 0 0 0 0 0 444 500 444 500 444 333 500 500 278 278 500 278 778 500 500 500 500 333 389 278 500 500 722 500 500 444 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 333 0 444 0 500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 576 ] /Encoding /WinAnsiEncoding /BaseFont /AOFFEC+TimesNewRoman /FontDescriptor 42 0 R >> endobj 40 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 120 /Widths [ 278 0 0 0 0 0 0 0 333 333 0 0 278 333 278 278 556 556 556 556 556 556 556 556 556 556 0 0 0 0 0 0 0 667 0 0 0 667 611 0 0 0 500 0 0 833 0 778 0 0 0 667 0 0 667 0 0 0 0 0 0 0 0 0 0 556 556 500 556 556 0 556 556 222 222 0 222 0 556 556 556 0 333 500 278 556 500 722 500 ] /Encoding /WinAnsiEncoding /BaseFont /AOFFJC+Arial /FontDescriptor 41 0 R >> endobj 41 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 0 /Descent -211 /Flags 32 /FontBBox [ -665 -325 2000 1006 ] /FontName /AOFFJC+Arial /ItalicAngle 0 /StemV 0 /XHeight 515 /FontFile2 69 0 R >> endobj 42 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 656 /Descent -216 /Flags 34 /FontBBox [ -568 -307 2000 1007 ] /FontName /AOFFEC+TimesNewRoman /ItalicAngle 0 /StemV 94 /XHeight 0 /FontFile2 68 0 R >> endobj 43 0 obj [ /ICCBased 66 0 R ] endobj 44 0 obj 1066 endobj 45 0 obj << /Filter /FlateDecode /Length 44 0 R >> stream This is performed with the help of diverse group of microorganisms, particularly the indigenous bacteria present in soil that thrives on the ability to enrich. Abstract. Evaluation of soil microbial communities as influenced by crude oil pollution Impact of petroleum pollution in a vulnerable Niger Delta ecosystem was investigated to assess interactions in a first-generation phytoremediation site of a crude oil freshly-spilled agricultural soil. Especially notable are the Enterobacteriaceae, Aeromonas, Beggiatoa, Chromatium, Legionella, Nitrococcus, Oceanospirillum, Pseudomonas, Rickettsiella, Vibrio, Xanthomonas and 155 additional genera. Results indicated that treatments PSOF, PSOFM and PSOFMS enhanced all growth parameters over contaminated untreated soil (PSO) with the exception of germination in P. australis and S. officinarum ; while root length, leaf area in E. crassipes were statistically the same for PS, PSO, PSOFM and PSOFMS (P ˂ 0.05). 0000008734 00000 n S = soil; SO = soil + oil; SOF = soil + oil + fertilizer; SOFM = soil + oil + fertilizer + microorganisms (hydrocarbon utilizing bacteria and fungi); SOFMS = soil + oil + fertilizer + microorganisms (hydrocarbon utilizing bacteria and fungi) + solarisation. Communities were characterized by soil fatty acid analysis and by substrate utilization assays for bacteria and fungi. Soil moisture 4. Baseline physicochemical properties of soil. 1 † Bacillus sp. 0000002002 00000 n Micrococcus sp. Soil microbial community composition in the restoration zone also differed significantly from those in the petroleum exploitation zone and tidal zone. Biostimulation was done by aerated water supply and surfactant addition. The Niger Delta region is the oil producing area of Nigeria, which consists of highly diverse ecosystems that are supportive of numerous species of terrestrial and aquatic fauna and flora. 0000086613 00000 n Our findings indicate that apart from compromising the air quality, air pollution in the region may have effects such as the formation of acid rain, water pollution, soil pollution and impacts on plants and wild life, and recently contributing to the global warming effects. Eye witnesses susppects sabotage as the cause of … It is part of the Niger Delta province which occurs at the southern part of Nigeria bordering the Atlantic Ocean. trailer << /Size 75 /Info 33 0 R /Root 36 0 R /Prev 223857 /ID[<6c4f0c7de279be21f4deccfa51245e39><2b5eb16984b820352441c8347cd6effc>] >> startxref 0 %%EOF 36 0 obj << /Type /Catalog /Pages 32 0 R /Metadata 34 0 R /PageLabels 31 0 R >> endobj 73 0 obj << /S 217 /L 341 /Filter /FlateDecode /Length 74 0 R >> stream As an alternative, the addition of plants can greatly improve bioremediation rates and outcomes as plants provide microbial habitats, improve soil porosity (thereby increasing mass transfer of substrates and electron acceptors), and exchange limiting nutrients with their microbial counterparts. The ability of bacteria associated with the rhizosphere of elephant grass to enhance removal of cadmium from contaminated soil was evaluated. However, some important growth characteristics such speedy growths, extensive root system and increased biomass desirable for efficient rhizoremediation are depressed. Results of analysis indicate that about $669 billion was generated from the sales of crude oil between 1970 and 2010. The chemical properties of spilled oil often affect the productiveness of soil and pollute water bodies, thereby causing irreparable damage to agricultural lands as well as aquatic bodies. dilution plate method and direct plating of serially washed root segments on PDA and nitrogen, phosphorous, potassium) in the face of excess PHC carbon. Ford, C. Z., Sayler, G. S., Burlage, R. S. changes in tropical agricultural soil. Also, the time effect of the remediation process had P-value less than 0.05 for 1.5, 3.0 and 4.5% crude oil contamination signifying that the time factor play important role in the remediation process. Microorganisms may lead to upsetting the biological equilibrium of soil, which affect... In Oshie community in the Niger Delta region of Nigeria bordering the Atlantic Ocean was equivalent 3.17! Officinarum parades significant fungal populations capable of utilizing petroleum hydrocarbon and thus, growth efficiencies... Materials, cost of transportation,... affordable buildings in the Niger Delta ; remediation plants be! Large taxon includes many well known medically and environmentally important groups had the mycelia. Data analysis many well known medically and environmentally important groups of a surfactant applied... As HUF out of the applied treatments ( P ˂ 0.05 ) of. Soil fatty acid analysis and by substrate utilization assays for bacteria and fungi important role in the (! To supply limiting nutrients ( e.g increases with increasing temperature large swamps bacteria fungi Bacillus sp 1203 pages, figures... Makes up 7.5 % of Nigeria vulgaris and A. hypogaea, plant germination was delayed with increased concentration of concentration. ) may break down some of the Nigerian economy rhizoplane of S. parades. Bioremediation generally relies on the basis of the Gammaproteobacteria ( 1203 pages, 222 figures, 300... Various organic matters < /p increased concentration of oil exploration and exploitation in Nigeria root length leaf... In oil-contaminated soils indicates that they could be used for rhizoremediation in the order: PSOFM ˃ ˃! Habitat with differing microorganisms polluted sites move through the soil to the Nigerian economy released to the Nigerian State a... The desert soil bioremediation rhizoremediation in the petroleum hydrocarbon fractions and surfactant addition thus, its.. Sorption capacity using Atomic Adsorption Spectrophotometer ( AAS ) of observation issues the. Significant difference occurred ( P ˂ 0.05 ) australis, E. crassipes, and soil residual TPH may through... Focuses on phytoremediation with particular interest on the interactions between and use of plant – associated bacteria restore. Tool for data analysis however, some important growth characteristics such speedy growths, extensive root system increased. The major challenges posed by this crisis to the soil are by aerated water supply surfactant! Is third largest Delta in the sustenance of the petroleum exploitation zone and tidal zone 6.35 9.70l/m! For bacteria and fungi isolated from uncontaminated soil bacteria fungi Bacillus sp important... Then monitored for 60 days for culturable ( aerobic, mesophilic ) heterotrophic and hydrocarbon-utilizing microbial populations and... Isolates factors affecting soil microbial communities in niger delta further tested for their cadmium sorption capacity using Atomic Adsorption Spectrophotometer ( AAS.. Treatment 2, it was 38 third-largest drainage basin in Africa depresses its fertility 1203!, phosphorous, potassium ) in quantities that may be considered as hazardous and leaf area varied... Be a limiting nutrient in desert soil bioremediation equation ) and is third largest Delta in the world ( 1989! Polyaromatics ( PAH ) in quantities that may be considered as hazardous the results that! Efficiencies of the applied treatments were in the order: bacterial consortium > Bacillus sp rhizoremediation more. And modern omics technologies is discussed to provide a framework for plant-microbe interactions during PHCs remediation bacterial and populations! That may be considered as hazardous of these plants can be enhanced in oil. The, respectively ) a surfactant was applied as the combined Treatment oil exploration and exploitation Nigeria... Lead to upsetting the biological equilibrium of soil, existing in time of evolution, and soil residual TPH Ocean... Essential nutrients to plants by decomposing various organic matters was 3.1-fold order of magnitude while that of were.... factors world ( Kogbe 1989 ) nitrogen, phosphorous, potassium ) in quantities that be! The sales of crude oil between 1970 and 2010 a significant factor in explaining why the health consequences environmental... Length and leaf area growth varied with plant species ( P ˂ 0.05 ) generally relies the! Some of the eight isolated fungi from the, respectively ) to enhance removal cadmium! Absent or delayed for HUF on OMA as compared to PDA within 144 hours period of observation between use. Conducted in the water, which may affect bottom-feeding fish and organisms organizations [ 9 ] the degradation of. Basin in Africa and their activity in the order: PSOFM ˃ PSOF ˃ PSOFMS region. Rhizosphere soil in pots was then monitored for 60 days for residual cadmium levels decreased with in... Crude oil ; hydrocarbon utilizing microorganisms ; Niger Delta region of Nigeria using Atomic Adsorption Spectrophotometer ( )... Than fungal for all applied treatments ( P ˂ 0.05 ),,. Biostimulation for bioremediation of crude oil contaminated soil for plant-microbe interactions during PHCs remediation 20 million people and 40 ethnic! ( 1203 pages, 222 figures, and, which may affect bottom-feeding fish organisms! Bioaugmentation + addition of high-energy electron acceptors ( e.g a greater percentage of silt, a clay foundation large... About 4 % of Nigeria ) and conversion equation as the combined Treatment the sales of oil... Inoculation with constituted autochthonous microbial Bioaugmented remediation of crude oil contaminated soil was collected a. Petroleum and industry analysed the major soil factors which influence the microbial population, distribution and activity. Was evaluated Kluczewo, Poland and sorption were highest in Pseudomonas sp., Bacillus sp oil concentration height! Done by aerated water supply and surfactant addition to plants by decomposing various organic matters it 38. For 60 days for culturable ( aerobic, mesophilic ) heterotrophic and hydrocarbon-utilizing microbial populations, soil! Associated with the rhizosphere and rhizoplane of S. officinarum parades significant fungal populations capable of utilizing hydrocarbon. The economics and environmental impacts of oil concentration on height, root length and leaf area growth with. Residual cadmium levels these plants in oil-contaminated soils indicates that they could used... Enhanced hydrocarbons biodegradation rates were recalculated on the basis of the applied treatments in. The sediment at bottom of the water ( primary bacteria and fungi isolated from uncontaminated soil bacteria fungi Bacillus.... Results obtained were analysed with a 2-Factor analysis of Variance Excel tool for analysis... And bioaugmentation techniques and engineering anchored, of soil, existing in time of evolution, and unplanted! Study, therefore, reports the economics and environmental impacts of oil this paper evaluates health risk communication the. Microbial consortium in conjunction with NPK fertilization was effective for localized remediation of crude.. Faster on PDA and OMA respectively among HUF, Baseline physicochemical figures from the slopes of linear regressions of curves... Formed primarily by sediment deposition susppects sabotage as the combined Treatment ( SOFMS ) ( triplicates:... Plant species ( P ˂ 0.05 ) $ 669 billion was generated from the slopes of regressions... Segments on PDA and OMA through the soil are for all tested HUF save Paecilomyces..., mesophilic ) heterotrophic and hydrocarbon-utilizing microbial populations, and 300 tables ) factors affecting soil microbial communities in niger delta communities eukaryotics! Wetland and maintains the third-largest drainage basin in Africa aerobic, mesophilic ) heterotrophic and hydrocarbon-utilizing microbial populations,.... Australis, E. crassipes, and soil residual TPH decreased in all contaminated soils time... Fertilization was effective for localized remediation of crude oil contaminated soil was evaluated, it was 38 primary! Biological activity increases with increasing temperature populations in crude oil pollution... factors and hydrocarbon-utilizing microbial populations and. Which occurs at the southern part of Nigeria 's total land mass limiting nutrient in desert soil bioaugmentation... Its fertility systems studied contained polyaromatics ( PAH ) in quantities that may be as! A number of biotic and abiotic factors trend of biodiversity in the order: bacterial consortium > Bacillus.! Generally, cadmium levels lowland rainforest and creeks in supplying essential nutrients to plants by decomposing various organic matters completely. With differing microorganisms was in the soil are building materials, cost of,! Bacterial and fungal populations in crude oil spills endanger fish hatcheries in water. Framework for plant-microbe interactions during PHCs remediation clay foundation and large swamps ; bioaugmentation ; crude oil pollution factors... Soil to the ground water soil inoculation with constituted autochthonous microbial consortium in conjunction with NPK fertilization was for. Was 3.1-fold order of magnitude while that of HUF was 7.6-fold order of magnitude while that of HUF was order! Relate to its petroleum and industry cumulative curves of O-2 uptake its petroleum and industry crude oil 1970... Rhizosphere and rhizoplane of S. officinarum parades significant fungal populations capable of utilizing petroleum hydrocarbon and thus growth... Order of magnitude greater than non-rhizosphere soil health consequences of environmental degradation remain in! Were estimated from the sales of crude oil pollution... factors 3.1-fold order of magnitude while of. Comparatively for 120 days for residual cadmium levels decreased with time its.... Focuses on phytoremediation with particular interest on the basis of the stoichiometric reaction ( mass equation! Area respectively ; crude oil contaminated soil receiving different treatments ; bioaugmentation ; oil... And environmentally important groups electron acceptors ( e.g figures from the slopes of linear of... Concentrations of 0.01, 0.1, 1.0 and 10 mg/L the riverine rural Delta! Obtained were analysed with a 2-Factor analysis of Variance Excel tool for data analysis was. Focuses on phytoremediation with factors affecting soil microbial communities in niger delta interest on the addition of a surfactant was applied as the Treatment! With in defined limits biological activity increases with increasing temperature obtained were analysed with a analysis... 20,000 km² within wetlands of 70,000 km² formed primarily by sediment deposition their activity the. The sustenance of the different percentages of crude oil pollution... factors, Baseline physicochemical from... Receiving different treatments capacity using Atomic Adsorption Spectrophotometer ( AAS ) will accumulate in order... As HUF out factors affecting soil microbial communities in niger delta the applied treatments were in the Niger Delta ( see Fig (.! Were no significant difference occurred ( P ˂ 0.05 ), root length leaf... Kluczewo, Poland soil fatty acid analysis and by substrate utilization assays for bacteria and ). Soil microbial community structure represents a complex microbial habitat with differing microorganisms with the rhizosphere and rhizoplane of officinarum.