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. 2026 May 12;17:1811142. doi: 10.3389/fmicb.2026.1811142

Figure 2.

Panel a shows a microscopic image of numerous small, rod-shaped bacteria stained pink on a light background. Panel b displays a line graph comparing optical density at 600 nanometers (OD600) over twelve hours for four groups: two controls and two experimental, with growth in BHI and LB media. The experimental groups in both BHI and LB media show increasing OD600, indicating bacterial growth, while control groups remain unchanged.

Morphological and growth kinetic analysis of strain S_KLB. (a) Gram staining of strain S_KLB, showing Gram-negative short rod-shaped bacteria (scale bar: 5 μm). (b) Growth curves of strain S_KLB cultured in different media: Blue curve: Strain S_KLB in BHI broth, Green curve: Strain S_KLB in LB broth, Black curve: Sterile BHI broth (negative control), Red curve: Sterile LB broth (negative control), the optical density at 600 nm (OD600) was monitored over time.