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You searched for: Subject term bacteria Remove constraint Subject term: bacteria Subject term polluted soils Remove constraint Subject term: polluted soils
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1. Phytophthora erythroseptica pethybr. in relation to its environment

Author:
CAIRNS, H.; MUSKETT, A.E.
Source:
Annals of applied biology 1939 v.26 no.3 pp. 470-480
ISSN:
0003-4746
Subject:
Phytophthora erythroseptica; acidity; alkalinity; asexual reproduction; bacteria; disease control; disease incidence; fungi; oospores; pH; polluted soils; potatoes; sexual reproduction; sporangia; temperature; zoospores
Abstract:
... 1 The present contribution, as part of a general study of pink rot of the potato, deals with Phytophthora erythroseptica Pethybr. in its relation to staling, light, acidity, moisture and temperature. 2 In natural media the fungus is not, or but very slightly, affected by its own staling products, but, in general, is intensely intolerant to the presence of other fungi and bacteria. 3 Ordinary dayli ...
DOI:
10.1111/j.1744-7348.1939.tb06984.x

2. Bioremediation Bacteria to Protect Plants in Pentachlorophenol-Contaminated Soil

Author:
William F. Pfender
Source:
Journal of environmental quality 1996 v.25 no.6 pp. 1256-1260
ISSN:
0047-2425
Subject:
Panicum miliaceum subsp. miliaceum; Pseudomonas; bacteria; bioaccumulation; bioremediation; pentachlorophenol; phytotoxicity; pollutants; polluted soils; roots; seeds
Abstract:
... Plants may be useful in stabilization and remediation of polluted surface soils, but phytotoxicity and plant bioconcentration of some pollutants can interfere with plant-associated site remediation. Pseudomonas strain SR3, when applied to seeds of proso millet (Panicum miliaceum L.), protected the growing plants from phytotoxicity of pentachlorophenol (PCP) in the soil during a 4-wk growth-chamber ...
DOI:
10.2134/jeq1996.00472425002500060013x

3. In vitro degradation of dicyclopentadiene by microbial consortia isolated from hydrocarbon-contaminated soil

Author:
Stehmeier, L.G.; Jack, T.R.; Voordouw, G.
Source:
Canadian journal of microbiology 1996 v.42 no.10 pp. 1051-1060
ISSN:
0008-4166
Subject:
screening; mineralization; metabolism; soil bacteria; organic compounds; bioremediation; pollutants; biodegradation; odors; polluted soils; metabolites
DOI:
10.1139/m96-135
PubMed:
8890482

4. Molecular aspects of pesticide degradation by microorganisms

Author:
Kumar, S.; Mukerji, K.G.; Lal, R.
Source:
Critical reviews in microbiology 1996 v.22 no.1 pp. 1-26
ISSN:
1040-841X
Subject:
recombinant DNA; polluted soils; soil pollution; bioremediation; genetic engineering; biodegradation; pesticides; bacteria
DOI:
10.3109/10408419609106454
PubMed:
8729958

5. A bioprocessing strategy that allows for the selection of Cr(VI)-reducing bacteria from soils

Author:
Turick, C.E.; Apel, W.A.
Source:
Journal of industrial microbiology & biotechnology 1997 v.18 no.4 pp. 247-250
ISSN:
1367-5435
Subject:
anaerobic conditions; bacteria; bioprocessing; bioreactors; bioremediation; chromium; effluents; groundwater; groundwater contamination; mixed culture; polluted soils; soil pollution
Abstract:
... Anaerobic bacteria that reduce hexavalent chromium [Cr(VI)] to trivalent [Cr(III)] are common in soils and were used to develop a bioprocess employing a selection strategy. Indigenous Cr(VI)-reducers were enriched from Cr(VI)contaminated soil under anaerobic conditions. The mixed culture was then tested for Cr(VI)-reducing activity in a chemostat, followed by transfer to a 1-L packed-bed bioreacto ...
DOI:
10.1038/sj.jim.2900373

6. Bioremediation of pentachlorophenol-contaminated soil by bioaugmentation using activated soil

Author:
Barbeau, C.; Deschenes, L.; Karamanev, D.; Comeau, Y.; Samson, R.
Source:
Applied microbiology and biotechnology 1997 v.48 no.6 pp. 745-752
ISSN:
0175-7598
Subject:
bacteria; bioaugmentation; biodegradation; biomass; bioreactors; mineralization; pentachlorophenol; polluted soils; sandy soils; slurries
Abstract:
... The use of an indigenous microbial consortium, pollutant-acclimated and attached to soil particles (activated soil), was studied as a bioaugmentation method for the aerobic biodegradation of pentachlorophenol (PCP) in a contaminated soil. A 125-1 completely mixed soil slurry (10% soil) bioreactor was used to produce the activated soil biomass. Results showed that the bioreactor was very effective ...
DOI:
10.1007/s002530051127
PubMed:
9457802

7. Use of immobilized cells of the strainCorynebacterium sp. for 4-nitrophenol degradation

Author:
L. Kotoučková; J. Vavřík; M. Němec; J. Plocek; Z. Zdráhal
Source:
Folia microbiologica 1997 v.42 no.5 pp. 509-512
ISSN:
0015-5632
Subject:
bacteria; calcium alginate; calcium chloride; cell viability; encapsulation; immobilized cells; p-nitrophenol; pH; polluted soils; protective effect
Abstract:
... 4-Nitrophenol degrading bacterial strainCorynebacterium sp. 8/3 was isolated from chemically polluted soil. The product of cometabolic transformation of 4-nitrophenol was identified as 4-nitrocatechol., Effect of immobilization (encapsulation in calcium alginate) ofCorynebacterium sp. cells on the process of 4-nitrophenol transformation was investigated. 4-Nitrophenol was converted by encapsulated ...
DOI:
10.1007/BF02826563

8. Effects of Triton X-100 and Quillaya Saponin on the ex situ bioremediation of a chronically polychlorobiphenyl-contaminated soil

Author:
Fava, F.; Di Gioia, D.
Source:
Applied microbiology and biotechnology 1998 v.50 no.5 pp. 623-630
ISSN:
0175-7598
Subject:
acids; bacteria; biodegradation; biomass; bioremediation; biphenyl; dechlorination; mixing; nutrients; octoxynol; polluted soils; polychlorinated biphenyls; saponins; soil microorganisms; surfactants
Abstract:
... The possibility of enhancing the ex situ bioremediation of a chronically polychlorinated biphenyl (PCB)-contaminated soil by using Triton X-100 or Quillaya Saponin, a synthetic and a biogenic surfactant, respectively, was studied. The soil, which contained about 350 mg/kg of PCBs and indigenous aerobic bacteria capable of growing on biphenyl or on monochlorobenzoic acids, was amended with inorgani ...
DOI:
10.1007/s002530051345

9. Effects of a copper-tolerant grass (Agrostis capillaris) on the ecosystem of a copper-contaminated arable soil

Author:
Boon, G.T.; Bouwman, L.A.; Bloem, J.; Romkens, P.F.A.M.
Source:
Environmental toxicology and chemistry 1998 v.17 no.10 pp. 1964-1971
ISSN:
0730-7268
Subject:
Agrostis capillaris; DNA; Nematoda; Protozoa; arable soils; bacteria; bacterivores; bioactive properties; copper; cultivars; ecosystems; fallow; fungivores; grasses; introduced plants; metal tolerance; microbial growth; pH; plant growth; planting; polluted soils; thymidine
Abstract:
... To test how a dysfunctioning ecosystem of a severely metal-polluted soil responds to renewed plant growth, a pot experiment was conducted with soil from an experimental arable field with pH and copper gradients imposed 13 years ago. In this experiment, four pH/copper combinations from this field were either planted with a pH- and copper-resistant grass cultivar or remained fallow. During a 10-week ...
DOI:
10.1897/1551-5028(1998)017<1964:EOACTG>2.3.CO;2

10. Potential for biodegradation of hydrocarbons in soil from the Ross Dependency, Antarctica

Author:
Aislabie, J.; McLeod, M.; Fraser, R.
Source:
Applied microbiology and biotechnology 1998 v.49 no.2 pp. 210-214
ISSN:
0175-7598
Subject:
bacteria; biodegradation; electrical conductivity; fuel oils; hexadecane; mineralization; naphthalene; nitrogen; nutrients; oil spills; polluted soils; soil sampling; water content; Antarctic region; Antarctica
Abstract:
... Oil spills occur in the Antarctic when fuel oils such as JP8 jet fuel are moved or stored. Hydrocarbons, both n-alkanes and aromatic compounds, have been detected in oil-contaminated soils of the Ross Dependency. In such areas hydrocarbon-degrading microbes, if naturally occurring, could be used for clean-up. Soil samples from oil-impacted and control sites were analysed for hydrocarbon-degrading ...
DOI:
10.1007/s002530051160

11. Rapid atrazine mineralisation in soil slurry and moist soil by inoculation of an atrazine-degrading Pseudomonas sp. strain

Author:
Wenk, M.; Baumgartner, T.; Dobovsek, J.; Fuchs, T.; Kucsera, J.; Zopfi, J.; Stucki, G.
Source:
Applied microbiology and biotechnology 1998 v.49 no.5 pp. 624-630
ISSN:
0175-7598
Subject:
Pseudomonas; atrazine; bacteria; biomass; mineralization; polluted soils; slurries; soil inoculation; soil water content; starvation; water holding capacity
Abstract:
... The evaluation of pesticide-mineralising microorganisms to clean-up contaminated soils was studied with the widely applied and easily detectable compound atrazine, which is rapidly mineralised by several microorganisms including the Pseudomonas sp. strain Yaya 6. The rate of atrazine removal was proportional to the water content of the soil and the amount of bacteria added to the soil. In soil slu ...
DOI:
10.1007/s002530051224
PubMed:
9650261

12. Bioremediation of atrazine-contaminated soil by repeated applications of atrazine-degrading bacteria

Author:
Newcombe, D.A.; Crowley, D.E.
Source:
Applied microbiology and biotechnology 1999 v.51 no.6 pp. 877-882
ISSN:
0175-7598
Subject:
Pseudomonas; adenosine diphosphate; atrazine; bacteria; bioaugmentation; fermenters; field experimentation; inoculum; irrigation; polluted soils
Abstract:
... Bioaugmentation has previously been unreliable for the in situ clean-up of contaminated soils because of problems with poor survival and the rapid decline in activity of the bacterial inoculum. In an attempt to solve these problem, a 500-l batch fermenter was investigated for its ability to deliver inoculum repeatedly to contaminated soils via irrigation lines. In a field experiment, mesocosms wer ...
DOI:
10.1007/s002530051477
PubMed:
10422233

13. Biotransformation of trichloroethylene using butane-oxidizing bacteria

Author:
Perriello, F.A.
Source:
Journal of soil contamination 1999 v.8 no.1 pp. 117-129
ISSN:
1058-8337
Subject:
soil remediation; soil pollution; bioremediation; trichloroethylene; oxidants; polluted soils; bacteria
DOI:
10.1080/10588339991339261

14. Heavy metals bioremediation of soil

Author:
L. Diels; M. De Smet; L. Hooyberghs; P. Corbisier
Source:
Molecular biotechnology 1999 v.12 no.2 pp. 149-158
ISSN:
1073-6085
Subject:
Cupriavidus metallidurans; bacteria; bioavailability; biomass; bioremediation; biosensors; cadmium; copper; electrochemistry; emissions; factories; flocculation; heavy metals; leaching; lead; outer membrane proteins; polluted soils; salts; sandy soils; siderophores; slurries; solubilization; zinc; Europe
Abstract:
... Historical emissions of old nonferrous factories lead to large geographical areas of metals-contaminated sites. At least 50 sites in Europe are contaminated with metals like Zn, Cd, Cu, and Pb. Several methods, based on granular differentiation, were developed to reduce the metals content. However, the obtained cleaned soil is just sand. Methods based on chemical leaching or extraction or on elect ...
DOI:
10.1385/MB:12:2:149

15. Isolation and characterization of a 2-methylphenanthrene utilizing bacterium: identification of ring cleavage metabolites

Author:
Sabate, J.; Grifoll, M.; Vinas, M.; Solanas, A.M.
Source:
Applied microbiology and biotechnology 1999 v.52 no.5 pp. 704-712
ISSN:
0175-7598
Subject:
creosote; nuclear magnetic resonance spectroscopy; energy; phenanthrenes; Sphingomonas; high performance liquid chromatography; metabolites; carbon; fuel oils; microbial biomass; biodegradation; polluted soils; bacteria
Abstract:
... A bacterial strain capable of utilizing 2-methylphenanthrene (2-MP) as its sole source of carbon and energy for growth was isolated from creosote contaminated soil. The isolate was identified as a strain of Sphingomonas sp. and was designated strain JS5. Utilization of 2-MP by strain JS5 was demonstrated by an increase in bacterial biomass concomitant with a decrease of 2-MP in liquid mineral medi ...
DOI:
10.1007/s002530051582

16. Biological degradation of selected hydrocarbons in an old PAH/creosote contaminated soil from a gas work site

Author:
Eriksson, M.; Dalhammar, G.; Borg-Karlson, A.K.
Source:
Applied microbiology and biotechnology 2000 v.53 no.5 pp. 619-626
ISSN:
0175-7598
Subject:
additives; aeration; bacteria; biodegradation; carbon dioxide production; creosote; inoculum; metabolites; microbial activity; mixing; nitrates; nitrites; nutrients; oxygen consumption; polluted soils; polycyclic aromatic hydrocarbons; slurries; solid phase microextraction; Sweden
Abstract:
... An old PAH/creosote contaminated soil (total approximately 300 microgram PAH/g soil) from a former gas work site in Stockholm, Sweden, has been treated at 20 degrees C with the addition of various nutrients and inoculated with bacteria (isolated from the soil) to enhance the degradation of selected hydrocarbons. Microcosm studies showed that the soil consisted of two contaminant fractions: one ava ...
DOI:
10.1007/s002530051667
PubMed:
10855726

17. Degradation and mineralization of high-molecular-weight polycyclic aromatic hydrocarbons by defined fungal-bacterial cocultures

Author:
Boonchan, S.; Britz, M.L.; Stanley, G.A.
Source:
Applied and environmental microbiology 2000 v.66 no.3 pp. 1007-1019
ISSN:
0099-2240
Subject:
Penicillium janthinellum; Stenotrophomonas maltophilia; anthracenes; bacteria; benzo(a)pyrene; biodegradation; carbon; carbon dioxide; coculture; energy; fungi; high performance liquid chromatography; inoculum; liquids; microbial growth; mineralization; mutagenicity; organic soils; polluted soils; salts; soil amendments
Abstract:
... This study investigated the biodegradation of high-molecular-weight polycyclic aromatic hydrocarbons (PAHs) in liquid media and soil by bacteria (Stenotrophomonas maltophilia VUN 10,010 and bacterial consortium VUN 10,009) and a fungus (Penicillium janthinellum VUO 10,201) that were isolated from separate creosote- and manufactured-gas plant-contaminated soils. The bacteria could use pyrene as the ...
DOI:
10.1128/AEM.66.3.1007-1019.2000
PubMed:
10698765
PubMed Central:
PMC91936

18. Development of catechol 2,3-dioxygenase-specific primers for monitoring bioremediation by competive quantitative PCR

Author:
Mesarch, M.B.; Nakatsu, C.H.; Nies, L.
Source:
Applied and environmental microbiology 2000 v.66 no.2 pp. 678-683
ISSN:
0099-2240
Subject:
DNA; bacteria; benzene; biodegradation; bioremediation; biphenyl; catechol; detection limit; enzymes; genes; hybridization; monitoring; naphthalene; phenol; polluted soils; quantitative polymerase chain reaction; soil pollution; toluene; xylene
Abstract:
... Benzene, toluene, xylenes, phenol, naphthalene, and biphenyl are among a group of compounds that have at least one reported pathway for biodegradation involving catechol 2,3-dioxygenase enzymes. Thus, detection of the corresponding catechol 2,3-dioxygenase genes can serve as a basis for identifying and quantifying bacteria that have these catabolic abilities. Primers that can successfully amplify ...
DOI:
10.1128/AEM.66.2.678-683.2000
PubMed:
10653735
PubMed Central:
PMC91880

19. Role of the reactor configuration in the biological detoxification of a dump site-polychlorobiphenyl-contaminated soil in lab-scale slurry phase conditions

Author:
Fava, F.; Di Gioia, D.; Marchetti, L.
Source:
Applied microbiology and biotechnology 2000 v.53 no.2 pp. 243-248
ISSN:
0175-7598
Subject:
Collembola; Lepidium sativum; bacteria; biodegradation; biphenyl; coculture; containers; germination; mortality; polluted soils; polychlorinated biphenyls; slurries; soil treatment
Abstract:
... The biotreatability of a xenobiotic contaminated soil is frequently determined through a bioslurry treatment usually performed in lab-scale shaken baffled flasks. In this study, a 3-l unconventional stirred tank reactor was developed and tested in the slurry-phase treatment of a soil heavily contaminated by polychlorobiphenyls (PCBs) derived from an Italian dump site, in the absence and in the pre ...
DOI:
10.1007/s002530050015
PubMed:
10709989

20. Soil Community Analysis Using DGGE of 16S rDNA Polymerase Chain Reaction Products

Author:
Cindy H. Nakatsu; Vigdis Torsvik; Lise Øvreås
Source:
Soil Science Society of America journal 2000 v.64 no.4 pp. 1382-1388
ISSN:
0361-5995
Subject:
Archaea; agricultural soils; agroecosystems; bacteria; community structure; crop rotation; denaturing gradient gel electrophoresis; microbial communities; polluted soils; polycyclic aromatic hydrocarbons; polymerase chain reaction; ribosomal DNA; ribosomal RNA; soil ecology; soil sampling; tillage; Norway; United States
Abstract:
... Separation of polymerase chain reaction (PCR)–amplified 16S rDNA products using denaturing gradient gel electrophoresis (DGGE) was tested as a means to study microbial community composition in bulk soil samples. DNA was extracted from six soils from agroecosystems in Norway and the USA under different agronomic treatments (crop, rotation, and tillage); one soil is contaminated with polyaromatic hy ...
DOI:
10.2136/sssaj2000.6441382x