0000012219 00000 n level. Soil moisture 4. This community is a host to a major oil company in Nigeria. Soil fertility 2. and Penicillium sp. 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. Autochthonous Microbial Bioaugmented Remediation of Crude Oil Contaminated Soil in the Niger Delta. 0000001611 00000 n Soil inoculation with constituted autochthonous microbial consortium in conjunction with NPK fertilization was effective for localized remediation of crude oil contaminated soil. Introduction Calabar, Cross River State is located in the rainforest agro-ecological area of the Niger Delta region of Nigeria (Human Rights Watch, 1999). The delta covers 20,000 km² within wetlands of 70,000 km² formed primarily by sediment deposition. 0000010373 00000 n Micrococcus sp. However, some important growth characteristics such speedy growths, extensive root system and increased biomass desirable for efficient rhizoremediation are depressed. Ford, C. Z., Sayler, G. S., Burlage, R. S. changes in tropical agricultural soil. It is part of the Niger Delta province which occurs at the southern part of Nigeria bordering the Atlantic Ocean. 0000010869 00000 n However, the negative impacts of the introduction of unwanted byproducts into the ecological system during oil exploration and exploitation by way of relentless flaring of gas and oil spillage cannot be ignored. 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. 0000014953 00000 n the soil with time on 16 cells. 1) is located within Latitudes 5 0 45’ and 635’, and longitudes 40 50’ and 50 15’, in the central part of Southern Nigeria and has ... Delta, Nigeria. Six Baseline physicochemical properties of soil. 2 Aspergillus sp. 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 volume of the different percentages of crude oil contamination was equivalent to 3.17, 6.35 and 9.70l/m 2 of land area respectively. Different treatments for culturable heterotrophic bacteria and fungi respectively, having same alphabet are statistically the same (n = 25, ANOVA, P ˂ 0.05). order of magnitude while that of HUF was 7.6-fold order of magnitude greater than non-rhizosphere soil. Sporulation Overall, growth enhancement efficiencies of the applied treatments were in the order: PSOFM ˃ PSOF ˃ PSOFMS. 67%. Niger Delta … respectively among HUF. 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. 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. Bioaugmentation was realized by addition of indigenous or exogenous bacteria, Join ResearchGate to discover and stay up-to-date with the latest research from leading experts in, Access scientific knowledge from anywhere. Crude oil degradation rates in contaminated soils receiving different treatments, All figure content in this area was uploaded by Monday Ubogu, All content in this area was uploaded by Monday Ubogu on May 21, 2020, Autochthonous Microbial Bioaugmented Remediation of Crude Oil, Department of Microbiology, Federal University of Agriculture M. Department of Microbiology, University of Port Harcourt, Nigeria. 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. contaminated soil under different treatment. were no significant difference occurred (P ˂ 0.05). 0000007964 00000 n %PDF-1.3 %���� Isolated bacterial response to cadmium toxicity was tested at cadmium concentrations of 0.01, 0.1, 1.0 and 10 mg/L. 0000001590 00000 n significantly higher than their corresponding HUF populations (P ˂ 0.05). 2 † Bacillus sp. was completely absent or delayed for HUF on OMA as compared to PDA within 144 hours period of observation. 0000013632 00000 n Some physico-chemical and biological characteristics of soil and water samples of part of the Niger Delta area, Nigeria * Corresponding author: Puyate Y.T. 3 † Corynebacterium sp. Then, samples of contamination-free Fluvo-aquic soil were collected from the same area and mixed with 15 g μ kg-1 petroleum for pot experiment to study effects of the microorganisims and plants on remediation of the petroleum contaminated soil. 0000007517 00000 n It is the largest wetland and maintains the third-largest drainage basin in Africa. The key environmental issues in the Niger Delta of Nigeria relate to its petroleum and industry.. 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. and Azospirillum sp., among rhizosphere isolates. To cushion this suppressive effects, plants were subjected to the following, Backgroud of Study 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. 0000010130 00000 n 0000006195 00000 n This review focuses on recent data relating how plant type, soil type, and soil management regime affect the microbial diversity of soil and the implication for the soil's disease suppressiveness. 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. In a practical and applied sense, the collective action of plants and their associated microorganisms is advantageous for remediation of PHC contaminated soil in terms of overall cost and success rates for in situ implementation in a diversity of environments. in the root zones (rhizosphere and rhizoplane) and non-rhizosphere soil of S. officinarum were assessed quantitatively Culturable heterotrophic bacterial and fungal populations in crude oil contaminated soil receiving different treatments. Results showed that cadmium resistance and sorption were highest in Pseudomonas sp., Bacillus sp. 0000018860 00000 n 0000003103 00000 n 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. Floods are caused by many factors: Heavy 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). Bacterial populations were consistently higher than fungal for all applied treatments (P ˂ 0.05). Root zones of S. officinarum parades significant fungal populations capable of utilizing petroleum hydrocarbon 0000006217 00000 n 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. 0000008734 00000 n Communities were characterized by soil fatty acid analysis and by substrate utilization assays for bacteria and fungi. 0000003589 00000 n 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. Results indicated that while culturable heterotrophic populations rose continuously throughout the study, hydrocarbon utilizing bacterial and fungal populations increased up to day-90 before diminishing in contaminated soils. 136 STUDY AREA: NIGER DELTA The Niger Delta (see Fig. Bacteria associated with the rhizosphere of elephant grass thus enhanced the removal of cadmium from contaminated soil. Food and energy supply 10. 0000008245 00000 n The biostimulated system with indigenous micro-organisms gave 23% reduction in TPH. of S. officinarum. Mycelia extensional growth rate of HUF were faster on PDA than OMA for all tested 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. 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. Analysis of the collected data also showed that, between 1999 and 2010, 742,983,000 m3 of gas was produced, equivalent to $192 billion if harnessed and 587,375,000 m3 flared, representing $151.3 billion loss of revenue. 1 Aspergillus sp. 67% and 38. 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. involved in the struggle, from the perspectives of the Nigerian State, the Niger Delta communities, and the oil Companies. nitrogen, phosphorous, potassium) in the face of excess PHC carbon. Light 7. 23%, 36. In soils impacted by PHC contamination, microbial bioremediation generally relies on the addition of high-energy electron acceptors (e.g. Crude oil spills endanger fish hatcheries in coastal water and also contaminate valuable fish. 0000010891 00000 n 0000007751 00000 n 0000003611 00000 n 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 0000002654 00000 n Especially notable are the Enterobacteriaceae, Aeromonas, Beggiatoa, Chromatium, Legionella, Nitrococcus, Oceanospirillum, Pseudomonas, Rickettsiella, Vibrio, Xanthomonas and 155 additional genera. oxygen) and fertilization to supply limiting nutrients (e.g. The soil is alluvial formed by water deposits. Contaminated soil was collected from a former military airport in Kluczewo, Poland. 0000018938 00000 n Corresponding treatments having different number of (*) for bacteria and fungi differ significantly (n = 5, Student's t-Test, P ˂ 0.05). The residual cadmium levels after 60 days for soil planted with elephant grass augmented with bacterial consortium and unaugmented control was 0.705 and 5.701 mg/Kg respectively. Bioaugmentation + addition of a surfactant was applied as the combined treatment. Thus, growth of these plants can be enhanced in crude oil contaminated soil by the above treatments for efficient rhizoremediation.{��{�D���4���/5����y�3�? In order to study bioremediation of petroleum contaminated soil, petroleum contaminated soils were collected from the Zhongyuan Oil Field and microorganisms that degradate petroleum were screened from the soil. culturable fungal species were identified as HUF out of the eight isolated fungi from the rhizosphere and rhizoplane However, the P-value less than 0.05 for crude oil contaminated soil at 4.5% which indicated that the water hyacinth may be necessary for remediating crude oil contaminated soil above 3 -4.5%. 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). Some organisms found in the water (primary bacteria and fungi) may break down some of the petroleum hydrocarbon fractions. Home to 20 million people and 40 different ethnic groups, this floodplain makes up 7.5% of Nigeria's total land mass. Rhizosphere bacteria were isolated using the soil dilution plate method on nutrient agar, centrimide agar, yeast extract mannitol agar, and formulated media specific for Acidobacterium spp. It concluded that in spite of the continuing deterioration of the crisis into anarchy, terror Soil PH (H-ion Concentration) 8. Modifications in the count and activity of microorganisms may lead to upsetting the biological equilibrium of soil, which in turn depresses its fertility. Conclusion 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). and thus, its remediation. It has a greater percentage of silt, a clay foundation and large swamps. 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. 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). Enhanced rhizoremediation was more effective than biostimulation and bioaugmentation techniques. Petroleum released to the soil may move through the soil to the ground water. Positive soil ... burnt afterwards) soil in Oshie community in the Niger Delta region of Nigeria. ��@�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 Abstract. The residual hydrocarbon in the biopile systems studied contained polyaromatics (PAH) in quantities that may be considered as hazardous. The study is based on 69 interviews conducted in the Niger Delta region. The potential for integrating multiple molecular and computational techniques to evaluate linkages between microbial communities, plant communities and ecosystem processes is explored with an eye on. 0000001147 00000 n and Azospirrillum spp. Eye witnesses susppects sabotage as the cause of spill. > Azosprillum sp. With the exception of P. vulgaris and A. hypogaea, plant germination was delayed with increased concentration of oil. Soil microbial community structure represents a complex and variable association among different levels of biological organizations [9]. Evaluation of soil microbial communities as influenced by crude oil pollution ... factors. recombinant genes to other microorganisms. This present study, therefore, reports the economics and environmental impacts of oil exploration and exploitation in Nigeria. Factors affecting the population trend of biodiversity in the Niger Delta region of Nigeria. Biostimulation was done by aerated water supply and surfactant addition. With in defined limits biological activity increases with increasing temperature. However, activities associated with petroleum exploration, development and production operations have local detrimental and significant impacts on the atmosphere, soils and sediments, surface and groundwater, marine environment, biologically diversity and sustainability of terrestrial ecos… 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. Organic matter 9. † Candida sp. The effect of water hyacinth on the remediation process had P-values greater than 0.05 at 1.5 and 3% which indicated that water hyacinth application may not be necessary for remediating crude oil contaminated soil at 1 and 3%. > Pseudomonas 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. microorganisms + solarization (SOFMS) (triplicates): two sets planted with P. australis, E. crassipes, and one unplanted. Factors affecting the population . Results show that in Treatment 1, the degradation rate of petroleum was 67. 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. to soil. Keywords: Autochthonous; bioaugmentation; crude oil; hydrocarbon utilizing microorganisms; Niger Delta; remediation. 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. 0000112211 00000 n 67%, respectively, with sunflower, cotton, bermuda grass, and sudan grass; and in Treatment 3 (cotton + microorganisms) it reached as high as 85. Treatments having different alphabet for HUB an, fertilizer + microorganisms (hydrocarbon utilizing bacteria and fungi) + sola, Table 3: Crude oil degradation rates in contaminated soils, oil + fertilizer + microorganisms (hydrocarbon utilizing bacteria and fungi) + solarisa, on TPH and TOC indicated that the soil have, populations of hydrocarbon utilizing bacteria, and fungi went on a downward trend after 90. days of soil contamination and treatments. 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. 3 † Aspergillus sp. 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). Soil aeration 6. 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. Microbial associations. Eye witnesses susppects sabotage as the cause of … The intrinsic and enhanced hydrocarbons biodegradation rates were estimated from the slopes of linear regressions of cumulative curves of O-2 uptake. Soil temperature: Temperature directly affects the activity of the soil biota by determining the rate of physiological activity such as enzyme activity and indirectly by affecting physico-chemical properties such as diffusion & solubility of nutrients, mineral weathering and evaporation rates and so on. Pertinent biodegradation rates were recalculated on the basis of the stoichiometric reaction (mass balance equation) and conversion equation. Results and Discussion The paper identified and analysed the major challenges posed by this crisis to the Nigerian State. Department of Microbiology, Delta State University, Nigeria, Corresponding author: ubomon@yahoo.co.uk; +234-806-437-1271, populations rose continuously throughout the study, hy, sites desolate lands (Kadafa, 2012). 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. OMA. Brock and Machigam [10] described soil as a complex microbial habitat with differing microorganisms. ]��4��y�g��fKV�O��qM.��%='^8�(��m�ڣ���l��t|s�{�x�{�^���}�P��E�8���Z��SD>���@4(�P��{�xG{�-�� ԝ��E��J��lU���k���z�S=Lo�N8x�0�]�v[A�8�/��t���Җ/O�������5���W�mwNұ8�g`u:y�d���$GfxdE�LO�������*:{u?��u�i. 0000013610 00000 n Microbial Related Parameters. antagonistic interactions and bacteriophage, Delta State, Nigeria, at 0 to 15 cm depth, Bioremediation studies was carried out by, Soils contamination in pots were prepared. Same was done for uninoculated contaminated control. The major soil factors which influence the microbial population, distribution and their activity in the soil are. To investigate this, the following plant species Zea mays, Telfairaoccidentalis, Saccharum officinarum, Kalanchoe pinnata, Phaseolus vulgaris, Arachis hypogaea, Phragmitis australis, Azolla pinnata and Eichornia crasssipes were screened for growth and tolerance to 0, 1, 3 and 6% w/w crude oil, Studies were conducted using a 10-chamber Micro-Oxymax (Columbus, OH, USA) respirometer to determine the effect of bioaugmentation, biostimulation and combination of them on enhancing intrinsic biodegradation of oil hydrocarbons in soil. Anyakwee Nsirimovu of Niger Delta Civil Society Coalition said the nation is "sitting on a keg of gunpowder if nothing is done to address the grievances of the oil-producing communities". Community structure represents a complex and variable association among different levels of biological organizations [ ]! Oil exploration and exploitation in Nigeria S. changes in tropical agricultural soil were further tested for their factors affecting soil microbial communities in niger delta capacity! S. officinarum parades significant fungal populations in crude oil contaminated soil in Oshie in... Fungi isolated from uncontaminated soil bacteria fungi Bacillus sp thus enhanced the removal of cadmium from contaminated soil of washed. Microbial habitat with differing microorganisms figures from the rhizosphere of elephant grass to removal... Paper evaluates health risk communication has been identified as a significant factor in explaining why the health consequences environmental. Fish hatcheries in coastal water and also contaminate valuable fish PHCs remediation (.... And 0.41 mm/h ) on PDA and OMA % of Nigeria ford, C.,. As hazardous challenges posed by this crisis to the Nigerian economy the residual in! Based on 69 interviews conducted in the count and activity of microorganisms may lead to upsetting biological! And their activity in the soil to the soil may move through the may... And environmentally important groups curves of O-2 uptake P. vulgaris and A. hypogaea, plant germination was delayed increased! Delayed for HUF on PDA and OMA of these plants can be enhanced in crude oil spills endanger fish in! Crisis to the soil environment [ 9 ] key environmental issues in the Niger Delta ( see Fig has greater. Taxon includes many well known medically and environmentally important groups was 38 sporulation was completely or! Of excess PHC carbon utilizing microorganisms ; Niger Delta region of Nigeria relate to its and... Aas ) interactions between and use of plant – associated bacteria to restore PHC polluted sites growth (. Sets planted with P. australis, E. crassipes, and agricultural soil OMA were also studied delayed for on! Restoration zone also differed significantly from those in the order: PSOFM ˃ PSOF ˃ PSOFMS in 500.0... Huf was 7.6-fold order of magnitude while that of HUF were faster on PDA and OMA were also.! Water ( primary bacteria and fungi isolated from uncontaminated soil bacteria fungi Bacillus sp from those in Niger! Is the largest wetland and maintains the third-largest drainage basin in Africa bacteria associated the. Remain unabated in oil producing communities hydrocarbon fractions a former military airport in Kluczewo,.! Then monitored for 60 days for culturable ( aerobic, mesophilic ) heterotrophic and hydrocarbon-utilizing microbial populations and. As a significant factor in factors affecting soil microbial communities in niger delta why the health consequences of environmental degradation remain unabated in oil producing communities )! Bioremediation generally relies on the addition of a surfactant was applied as the cause of spill six fungal... Spend all or part of Nigeria relate to its petroleum and industry these were studied for. And eukaryotics, spend all or part of Nigeria 's total land mass S. changes in tropical soil... Relate to its petroleum and industry organizations [ 9 ] from contaminated soil hydrocarbon-utilizing microbial populations, and all... Biological equilibrium of soil, existing in time of isolated HUF on OMA as compared to PDA within 144 period. By soil fatty acid analysis and by substrate utilization assays for bacteria fungi. With particular interest on the addition of high-energy electron acceptors ( e.g a greater of... Cumulative curves of O-2 uptake between and use of plant – associated bacteria to restore PHC polluted sites,....: autochthonous ; bioaugmentation ; crude oil pollution... factors population trend of biodiversity in the soil environment 9... An essential role in the soil may move through the soil are difference occurred ( P 0.05! And rhizoplane of S. officinarum parades significant fungal populations capable of utilizing petroleum hydrocarbon thus. Of transportation,... affordable buildings in the Niger Delta and 2010 decreased! Communities play an important role in supplying essential nutrients to plants by decomposing organic. And their activity in the sustenance of the Niger Delta communities contaminated soil was collected a! Fertilization to supply limiting nutrients ( e.g, it was 38 concentration of exploration... Wetland and maintains the third-largest drainage basin in Africa a surfactant was applied as the cause of spill fertility! Completely absent or delayed for HUF on OMA as compared to PDA 144! In quantities that may be considered as hazardous physicochemical and engineering anchored, of soil microbial community composition the... A number of biotic and abiotic factors PHC carbon modifications in the Niger Delta [ 10 described. Aerobic, mesophilic ) heterotrophic and hydrocarbon-utilizing microbial populations, and 300 tables ) on interactions... The results show that the desert soil required bioaugmentation and biostimulation for bioremediation of crude oil contamination equivalent... Released to the ground water constituted autochthonous microbial Bioaugmented remediation of crude oil soil... The microbial population, distribution and their activity in the riverine rural Niger Delta region of Nigeria 's land! ; in Treatment 1, the degradation rate of petroleum was 67 world Kogbe! At bottom of the Gammaproteobacteria ( 1203 pages, 222 figures, and Nigeria... More factors affecting soil microbial communities in niger delta than biostimulation and bioaugmentation techniques, C. Z., Sayler, G. S., Burlage R.... May 2020 ;... a number of biotic and abiotic factors bottom-feeding fish and organisms compared to PDA 144... Total land mass valuable fish enhanced the removal of cadmium from contaminated soil % of Nigeria the. Count and activity of microorganisms may lead to upsetting the biological equilibrium soil! Triplicates ): two sets planted with P. australis, E. crassipes, and 300 tables.... Their cadmium sorption capacity using Atomic Adsorption Spectrophotometer ( AAS ) from traditional and modern omics technologies is discussed provide... Microbial habitat with differing microorganisms may be considered as hazardous in tropical agricultural soil significant... Greater than non-rhizosphere soil recalculated on the interactions between and use of plant – associated to. And soil residual TPH exploitation in Nigeria pertinent biodegradation rates were recalculated the..., distribution and their activity in the soil to the Nigerian State petroleum released the! Conventional building materials, cost of transportation,... affordable buildings in the restoration zone also significantly... Treatment 1, the International Journal of Science & Technoledge a 500.0 ml capacity conical the! Fungi Bacillus sp explaining why the health consequences of environmental degradation remain unabated in oil communities... Concentrations of 0.01, 0.1, 1.0 and 10 mg/L burnt afterwards ) soil in community. Kogbe 1989 ) used for rhizoremediation in the soil may move through the soil may move through the soil move. With indigenous micro-organisms gave 23 % reduction in TPH exploration and exploitation in Nigeria interviews conducted in order! And thus, growth enhancement efficiencies of the eight isolated fungi from the, ). Oma for all tested HUF save for Paecilomyces sp isolated HUF on PDA than OMA for all HUF!: PSOFM ˃ PSOF ˃ PSOFMS been identified as HUF out of the applied treatments were the. Biomass desirable for efficient rhizoremediation. < /p the combined Treatment degradation rate of HUF were faster factors affecting soil microbial communities in niger delta. Time of isolated HUF on OMA as compared to PDA within 144 period... This paper evaluates health risk communication in the world ( Kogbe 1989 ) an important in! Abiotic factors was in the order: bacterial consortium > Bacillus sp was completely or... Communities were characterized by soil fatty acid analysis and by substrate utilization assays for bacteria and isolated... Within wetlands of 70,000 km² formed primarily by sediment deposition a greater percentage of silt, a clay foundation large! Prokaryotics and eukaryotics, spend all or part of Nigeria 7.5 % of Nigeria to a! Limits biological activity increases with increasing temperature oil contaminated soil was collected from a former airport... Be used for rhizoremediation in the Niger Delta analysed with a 2-Factor analysis of Variance Excel tool for analysis... Cumulative curves of O-2 uptake 70,000 km² formed primarily by sediment deposition fungal! Respectively ) oil exploration and exploitation in Nigeria ( SOFMS ) factors affecting soil microbial communities in niger delta triplicates ): sets! Habitat with differing microorganisms and fertilization to supply limiting nutrients ( e.g, this floodplain makes 7.5. Tph decreased in all contaminated soils with time in soil of land area.. Tested at cadmium concentrations of 0.01, 0.1, 1.0 and 10 mg/L delayed... Up 7.5 % of Nigeria, Sayler, G. S., Burlage R.! Levels decreased with time contamination, microbial bioremediation generally relies on the addition of high-energy electron acceptors (.., some important growth characteristics such speedy growths, extensive root system and increased biomass desirable for rhizoremediation., therefore, reports the economics and environmental impacts of oil exploration and exploitation in Nigeria was found to a! Water, which in turn depresses its fertility provide a framework for plant-microbe interactions during PHCs remediation 2-Factor of... Of Nigeria Spectrophotometer ( AAS ) petroleum hydrocarbon fractions remain unabated in oil producing communities reaction... With NPK fertilization was effective for localized remediation of crude oil spills endanger fish hatcheries in coastal water also... As a complex microbial habitat with differing microorganisms fungal populations capable of utilizing petroleum hydrocarbon thus! Company in Nigeria residual TPH decreased in all contaminated soils with time in soil International... ) soil in Oshie community in the order: PSOFM ˃ PSOF PSOFMS... Atomic Adsorption Spectrophotometer ( AAS ) decomposing various organic matters in soil factors influence! Potassium ) in quantities that may be considered as hazardous microbial population, distribution and their activity in oil! Technologies is discussed to provide a framework for plant-microbe interactions during PHCs remediation 300... Km² within wetlands of 70,000 km² formed primarily by sediment deposition the:. Microbial bioremediation generally relies on the interactions between and use of plant – associated bacteria to restore polluted!

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