Antioxidant, antimicrobial and anticancer activity of the lichens Cladonia furcata, Lecanora atra and Lecanora muralis

Table 2 Minimum inhibitory concentration (MIC) of acetone extracts of Cladonia furcata, Lecanora atra and Lecanora muralis

Lichen species	C. furcata	L. atra	L. muralis	S - K
B. mycoides	0.78^a	1.56	3.12	7.81 -
B. subtilis	0.78	1.56	6.25	7.81 -
E. cloacae	0.78	3.12	3.12	1.95 -
E. coli	1.56	-	-	31.25 -
K. pneumoniae	0.78	3.12	3.12	1.95 -
S. aureus	0.78	3.12	3.12	31.25 -
A. flavus	25	25	-	- 3.9
A. fumigatus	12.5	25	-	- 3.9
B. cinerea	25	25	25	- 1.95
C. albicans	6.25	12.5	-	- 1.95
F. oxysporum	25	25	-	- 3.9
M. mucedo	25	25	-	- 31.25
P. variotii	12.5	25	25	- 1.95
P. purpurescens	25	25	-	- 3.9
P. verrucosum	25	25	-	- 7.81

^aMinimum inhibitory concentration (MIC); values given as mg/ml for lichen extract and as μg/ml for antibiotics Values are the mean of three replicate.
Antibiotics: K - ketoconazole, S - streptomycin.