Dig Deeper: Continuing the Hunt for Antimicrobials in Soil

Location

CoLab, COM 149

Start Date

30-4-2026 9:30 AM

Document Type

Poster

Description

The increasing prevalence of antibiotic-resistant bacteria presents a major challenge to modern medicine and highlights the need for new antimicrobial agents. This study explores the use of soil samples to isolate microorganisms capable of producing antimicrobial substances. Soil-derived microbes were cultured and screened for their ability to inhibit the growth of several bacterial strains. Serial dilution techniques were used to isolate distinct microbial colonies, which were then subjected to antibiotic screening to evaluate their effectiveness by measuring zones of inhibition against ESKAPE safe relatives. This study provided several bacterial isolates with potential antibiotic properties, including strains that were effective in inhibiting Enterococcus faecalis and Escherichia coli. By focusing on naturally occurring microbial interactions in soil, this study emphasizes the importance of environmental sources in the discovery of new antibiotics.

Comments

The faculty mentor for this project was Melissa Beaty.

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Apr 30th, 9:30 AM

Dig Deeper: Continuing the Hunt for Antimicrobials in Soil

CoLab, COM 149

The increasing prevalence of antibiotic-resistant bacteria presents a major challenge to modern medicine and highlights the need for new antimicrobial agents. This study explores the use of soil samples to isolate microorganisms capable of producing antimicrobial substances. Soil-derived microbes were cultured and screened for their ability to inhibit the growth of several bacterial strains. Serial dilution techniques were used to isolate distinct microbial colonies, which were then subjected to antibiotic screening to evaluate their effectiveness by measuring zones of inhibition against ESKAPE safe relatives. This study provided several bacterial isolates with potential antibiotic properties, including strains that were effective in inhibiting Enterococcus faecalis and Escherichia coli. By focusing on naturally occurring microbial interactions in soil, this study emphasizes the importance of environmental sources in the discovery of new antibiotics.