6533b828fe1ef96bd1289086

RESEARCH PRODUCT

Degradation of long-chain n-alkanes in soil microcosms by two actinobacteria

Claudio De PasqualePaola QuatriniLuca Lo PiccoloEristanna Palazzolo

subject

Environmental Engineeringfood.ingredientSoil textureSettore AGR/13 - Chimica AgrariaGeneral MedicineGordoniaBiologybiology.organism_classificationSettore BIO/19 - Microbiologia GeneraleNocardiaActinobacteriaMicrobiologyfoodBioremediationBiodegradation EnvironmentalEnvironmental chemistrySoil waterAlkanesDegradation (geology)Soil PollutantsMicrocosmGordonia BacteriumBacteriaSoil MicrobiologyBioremediation soil microcosms GC-MS n-alkanes Nocardia Gordonia.

description

The ability of two recently isolated actinobacteria, that degrade medium and long chain n-alkanes in laboratory water medium, was investigated in soil microcosms using different standard soils that were artificially contaminated with n-alkanes of different length (C(12)- C(20)- C(24)- C(30)). The two strains, identified as Nocardia sp. SoB and Gordonia sp. SoCp, revealed a similar high HC degradation efficiency with an average of 75% alkane degraded after 28 days incubation. A selectivity of bacteria towards n-alkanes of different length was detected as well as a consistent effect of soil texture and other soil physical chemical characteristics on degradation. It was demonstrated the specific aptitude of these selected strains towards specific environmental conditions.

10.1080/10934529.2012.645786http://hdl.handle.net/10447/78608