Changes in the bacterial community after application of oily sludge to soil

Lode, Aaslaug

doi:10.1007/bf00253666

Cited by 8 publications

(6 citation statements)

References 10 publications

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“…A large number of studies have demonstrated sizable increases in populations of hydrocarbon-utilizing microorganisms when environmental samples are exposed to petroleum hydrocarbons (Amund and Igiri, 1990;Atlas et al, 1980b;Bartha, 1972a, 1973d;Calomiris et al, 1976;Davis, 1956;Kator, 1973;Lode, 1986;Perry and Cerniglia, 1973;Pritchard and Starr, 1973;Soli, 1973;Taxler, 1973;Sexstone and Atlas, 1977;ZoBell, 1973b). In unpolluted environments, hydrocarbon degraders generally constitute less than 1 % of the microbial community, whereas in oil-polluted ecosystems, hydrocarbon degraders often represent 1-10% of microorganisms (Atlas, 1981).…”

Section: Hydrocarbon-degrading Microbial Populationsmentioning

confidence: 95%

“…The microbial community of soils usually includes a significant hydrocarbonutilizing component, which readily increases in response to hydrocarbon contamination (Atlas et at., 1981;Jensen, 1975;Llanos and Kjoller, 1976;Pinholt et at, 1979;Lode, 1986). A sandy loam soil with no previous oil exposure history was found to have about 30,000 hydrocarbon degraders per g .…”

Section: Biodegradation Of Oily Wastes-landtreatmentmentioning

confidence: 97%

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Hydrocarbon Biodegradation and Oil Spill Bioremediation

Atlas

Bartha

1992

Advances in Microbial Ecology

346

173

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Section: Hydrocarbon-degrading Microbial Populationsmentioning

confidence: 95%

Section: Biodegradation Of Oily Wastes-landtreatmentmentioning

confidence: 97%

Hydrocarbon Biodegradation and Oil Spill Bioremediation

Atlas

Bartha

1992

Advances in Microbial Ecology

346

173

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“…Especially with regard to pollution, Jensen [11], Austin et al [1], and Lode [15] found no unusual bacterial diversities previously. The ability to adapt to contaminated sites is obviously widespread and cannot be exclusively assigned to single taxa, as the variety of xenobiotic compound-degrading species and genera isolated from enrichment cultures indicates [16,22].…”

Section: Discussionmentioning

confidence: 99%

“…To examine biorestoration capacities, a microbiological test area was set up that contained (among other installations) four adjacent subsoil enclosures and a dry windrow for soil composting [cf. 15,21]. The upper ground level of the site consisted of an inhomogeneous fill, which was intended to be treated by on-site windrow composting.…”

Section: Contaminated Sites From Which Samples Were Takenmentioning

confidence: 99%

Functional analysis of communities of aerobic heterotrophic bacteria from hydrocarbon-contaminated sites

Becker

Dott

1995

Microb Ecol

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Microbial communities from soil and groundwater of oil-contaminated sites (Beelitzhof in Berlin-Nikolassee and the former Pintsch site in Hanau, both in Germany) were characterized by description of the physiological potential of arbitrary samples of 48 aerobic heterotrophic bacterial isolates. It was demonstrated that the sum of metabolic abilities, presented as a percentage of substrate-degrading microorganisms in a sample, is both site specific and reproducible. The percentage of hydrocarbon-degrading microorganisms in the communities was most strongly influenced by the diversity and amount of carbon supply (whereas after addition of mineral salts, total cell counts increased). For example, in groundwater of the waste oil-contaminated Pintsch site, only the accessible short-chain alkanes up to dodecane could be metabolized. After dosing with hydrogen peroxide, long-chain alkane-degrading bacteria were found in significant amounts among the predominant microorganisms, which was apparently due to a solubilization effect that brought the longer alkanes (and their degraders) into the groundwater. Because the addition of precultured organisms to a soil-composting windrow had no effect on the degradation pattern of its microbiota, the carbon sources available probably determined whether allochthonous bacteria would become indigenous. Although the physiological potentials of the individual bacteria complemented each other and thus determined the distinctive profile characteristic of the microbial community, the individual members could differ in their metabolic abilities, as was shown by the distribution of positive test results in different samples, and they could also differ in their taxonomic status. Evidently, the taxonomic status of the bacteria did not determine their activities: Strains of the same species showed different degradation abilities for hydrocarbon substrates. However, the taxonomic status of isolates seemed to be highly dependent on the physicochemical factors of a site (soil structure, water capacity, etc.).

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“…Τα αποτελέσματα έδειξαν ότι από μόνη της η προσθήκη οργανικού υλικού ή η λίπανση δεν αλλοίωσαν σε στατιστικά σημαντικό βαθμό τον μικροβιακό πληθυσμό. ( Lode.,1986). Αντίθετα η μικτή λίπανση (οργανικό υλικό και λίπασμα) η οποία εφαρμόστηκε σε φτωχά καλλιεργούμενα εδάφη οδήγησε σε μια σημαντική αύξηση τόσο του πληθυσμού όσο και της μικροβιακής ποικιλότητας.…”

Section: μικροβιολογικές εξετάσειςunclassified

Η Μικροβιακή Χλωρίδα Των Ζαχαρότευτλων Από Τον Αγρό Στην Τελική Επεξεργασία

Παπαδόπουλος¹

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Στην παρούσα διατριβή το ενδιαφέρον μας στράφηκε στη μικροβιακή χλωρίδα ,οικολογία της καλλιέργειας και της επεξεργασίας των τεύτλων (Beta vulgaris ) στην περιοχή του Έβρου. Για τον σκοπό αυτό 294 δείγματα τα οποία ελήφθησαν σε διάστημα 24 μηνών από όλη την διαδικασία παραγωγής της ζάχαρης (τεύτλα ενδιάμεσα και τελικά προϊόντα) ελέγχθηκαν μικροβιολογικά με κλασικές μικροβιολογικές μεθόδους για την απομόνωση και ταυτοποίηση αερόβιων και αναερόβιων μικροοργανισμών. Τα αποτελέσματα έδειξαν παρουσία σπορίων C. perfringens ενώ απομονώθηκαν και άλλα βακτηριακά είδη όπως Enterobacteriaceae (38%), Staphylococcus sp. (12%), Bacillus sp. (36%) καθώς και σε σημαντικό ποσοστό Gram(-) Cocci (10,4%). Σε μικρότερο ποσοστό απομονώθηκαν Streptococcus sp. (0,8%), Lactobacillus sp. (0,6%), Pseudomonas sp. (1,1%) καθώς και διάφορες ζυμομύκητες (0,6%). Τα δείγματα της ζάχαρης ήταν στείρα μικροοργανισμών, κάτι που αναμένεται εξαιτίας των φυσικοχημικών χαρακτηριστικών όπως η χαμηλή ενεργότητα του νερού. Τα ίδια χαρακτηριστικά σε μικρότερο όμως βαθμό φαίνεται ότι επηρεάζουν και την μικροχλωρίδα των τεύτλων. Έτσι το καλλιεργημένο χώμα των ριζών παρουσίασε χαμηλούς πληθυσμούς σπορίων του C. perfringens ενώ γενικά η μικροβιακή χλωρίδα φαίνεται να εξαρτάται από τις τοπικές συνθήκες, τη φύση της οργανικής ρύπανσης αλλά και από την φυσικοχημική κατάσταση του εδάφους.

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Changes in the bacterial community after application of oily sludge to soil

Cited by 8 publications

References 10 publications

Hydrocarbon Biodegradation and Oil Spill Bioremediation

Hydrocarbon Biodegradation and Oil Spill Bioremediation

Functional analysis of communities of aerobic heterotrophic bacteria from hydrocarbon-contaminated sites

Η Μικροβιακή Χλωρίδα Των Ζαχαρότευτλων Από Τον Αγρό Στην Τελική Επεξεργασία

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