Antibiotic resistance of Gram-negative benthic bacteria isolated from the sediments of Kardzhali Dam (Bulgaria)

Figures & data

Figure 1. General scheme of Kardzhali Dam (a) and locations of sampling stations (b) in the studied area of the reservoir.

Figure 2. Sensitivity of the 160 Gram-negative strains isolated from the sediments of Kardzhali Dam (P. mandelii – 100 strains; H. alvei – 30 strains; and R. ornithinolytica – 30 strains).

Note: AMP – ampicillin; SAM – ampicillin/sulbactam; AMX – amoxicillin; AMC – amoxicillin/clavulanic acid; CXM – cefuroxime; CFM– cefixime; CES – cefoperazone/sulbactam; KF – cephalothin; G – gentamicin; AK – amikacin; TE – tetracycline; E – erythromycin; CIP – ciprofloxacin, NAL – nalidixic acid; C – chloramphenicol; SXT – sulfamethoxazole/trimethoprim.

Figure 3. Multiple antibiotic resistance of Gram-negative strains isolated from the sediments of Kardzhali Dam in August 2011.

Figure 4. Comparison of minimum inhibitory concentration (MAC) for Pseudomonas mandelii strains isolated from sediments at stations 1 and 2 in Kardzhali Dam in August 2011.

Note: TE – tetracycline; AK – amikacin; CIP – ciprofloxacin, NAL – nalidixic acid; SMX – sulfamathoxazole.

Figure 5. Minimum inhibitory concentration for strains Hafnia alvei (a) and Raoultella ornirhinolytica (b) isolated form station 1sediments at Kardzhali Dam in August 2011.

Note: TE – tetracycline; AK – amikacin; CIP – ciprofloxacin, NAL – nalidixic acid; SMX – sulfamathoxazole.