Table 1.

The antibiotic resistance profile of Haloarcula argentinensis RR10 exposed to Simulated microgravity and normal gravity conditions

S. no.	Antibiotic	Concentration (µg)	Class/type of antibiotic	Interpretive criteria for zone diametera (mm)			Antibiotic resistance profile of Haloarcula argentinensis RR10
				S	I	R	Normal gravity	Simulated microgravity
1	Augmentin	30	Penicillin + clavulanic acid	–	–	–	S	R
2	Norfloxacin	10	Fluoroquinolone	≥17	13–16	12≤	S	R
3	Nalidixic acid	30	Quinolone	≥19	14–18	13≤	R	R
4	Imipenem	10	Carbapenem	≥23	20–22	19≤	S	S
5	Tobramycin	10	Aminoglycoside	≥15	13–14	12≤	S	R
6	Cefoperazone	75	Cephalosporin	≥21	16–20	15≤	S	R
7	Cefoxitin	30	Cephamycin	≥18	15–17	14≤	S	S
8	Piperacillin/tazobactam	100/10	β-lactam + β-lactamase inhibitor	≥21	18–20	17≤	S	S

R resistant, I intermediate, S sensitive, nd not determined

^aInterpretive criteria of Gram-negative bacteria as per guidelines of CLSI M100-S24 for disk diffusion