Soil Microcosm
Representative Isolates Benzene Ethyl-benzene Xylene
Pseudomonas resinovorans X X X
Pseudomonas geniculata 1   X X
Pseudomonas sp     X
Pseudomonas mosselii   X X
Pseudomonas geniculata 2 X    
Comamonastestosteroni     X
Delftiasp X    
Bacillus thuringiensis   X  
Acinetobactercalcoaceticus 1 X    
Acinetobactersp X    
Acinetobactercalcoaceticus 2 X    
Alpha Diversity 6 4 5
Beta Diversity B versus E: 8 E versus X: 3 B versus X: 8
Gamma Diversity 11    
X: presence of isolate; Alpha Diversity: total number of species i.e. species richness; Beta Diversity: comparison of diversity between microcosms i.e. amount of isolate change; Gamma Diversity: overall diversity in soil microcosms; B: Benzene; E: Ethyl-benzene; X: Xylene
Table 4: Alpha, beta and gamma diversity values for bacterial isolates from the three soil microcosms enriched with hydrocarbons.