Antimicrobial Potential of Crude Extract of Curvularia lunata, an Endophytic Fungi Isolated from Cymbopogon caesius

Table 1

Antimicrobial activity (zone of inhibition, mm) on various pathogens by EtOAc extract of C. lunata.

	Inhibition zone (mm)
	EtOAc extract			Standard	Activity index (AI)
	100%	50%	25%		100%	50%	25%
Test pathogens
Staphylococcus aureus	20 ± 1.5	16 ± 0.9	12 ± 0.6	21.6	0.92	0.8	0
Xanthomonas campestris	14 ± 1.0	10 ± 0.5	8 ± 0.8	20.05	0.7	0.5	0.4
Salmonella typhi	16 ± 2.1	11 ± 0.4	0	18.15	0.90	0.6	0
Escherichia coli	19 ± 1.5	12 ± 0.5	8 ± 0.9	25	0.76	0.48	0.32
Klebsiella pneumoniae	14 ± 1.2	10 ± 1.5	0	24.5	0.57	0.40	0
Fungal pathogens
Candida albicans	18 ± 1.2	14 ± 0.9	0	22	0.81	0.63	0
Chrysosporium merdarium	10 ± 1.0	8 ± 0.5	0	14	0.71	0.57	0
Trichophyton rubrum	13 ± 0.6	10 ± 0.4	0	16.8	0.77	0.59	0

1 mg/mL was taken as 100%.