ORIGINAL RESEARCH
Metabolic and Molecular Profiling of Microbial
Communities Following Controlled
Kerosene Pollution
More details
Hide details
1
Department of Genetics, Faculty of Biology, University of Bucharest, Bucharest, Romania
Submission date: 2018-07-03
Final revision date: 2018-08-20
Acceptance date: 2018-09-03
Online publication date: 2019-08-06
Publication date: 2019-10-23
Corresponding author
Ana-Maria Tanase
University of Bucharest, Department of Genetics, Aleea Intrarea Portocalelor nr.1-3, 060101 Bucharest, Romania
Pol. J. Environ. Stud. 2020;29(1):197-203
KEYWORDS
TOPICS
ABSTRACT
The release of xenobiotic compounds as petroleum and its derivatives still represents a problematic
and not fully manageable consequence of various anthropogenic activities. Thus, endogenous microbial
communities facing such pollutants are constantly adapting to new conditions, their evaluation being
an important asset for environmental preservation. This study analyzes structural and metabolic shifts
in a soil microbial community following kerosene pollution. Metabolic profiles from Biolog EcoPlate,
analyzed as a guild grouping, Shannon diversity index (H index) and functional divergence revealed
a significant reorganization followed by specialization in communities’ metabolic function, also
being supported by molecular profiles from ribosomal RNA (rRNA) intergenic spacer analysis (RISA)
fingerprinting. Highly intense metabolic activity and structural changes are suggested by the increase
in alkB and rRNA genes copy number, having similar trends. Thus, alkB gene copy number increased
in 70 days from 5.53×109 to 1.67×1011 copies. In this study we managed to report the changes that occur
in a soil microbial community facing kerosene pollution using a significant number of complementary
techniques, resulting in a complex characterization that can be of great use when facing kerosene-type
pollutants.