Antibiotic resistance in grass and soil

Area of Science:

• Environmental Science
• Microbiology
• Public Health

Background:

• Antibiotic resistance is a major global health threat, exacerbated by widespread antibiotic use in human medicine and agriculture.
• Agricultural practices, including the use of manure, are significant contributors to the spread of antibiotic resistance genes (ARGs).
• The continuous application of manure to agricultural lands is a potential pathway for transmitting antibiotic-resistant bacteria from livestock to the environment and food chain.

Purpose of the Study:

• To investigate the impact of continuous manure application on the soil microbiome and resistome.
• To understand the mechanisms of antibiotic resistance gene (ARG) enrichment and maintenance in agricultural environments.
• To inform regulations and practices concerning antibiotic use and manure management in agriculture.

Main Methods:

• Analysis of soil and plant microbiomes and resistomes.
• Tracking the dissemination of antibiotic-resistant bacteria and ARGs.
• Environmental monitoring of ARG proliferation.

Main Results:

• Continuous manure application significantly alters the soil microbiome and enriches antibiotic resistance genes (ARGs).
• Manure serves as a critical vehicle for the transmission of ARGs from livestock to crops and soil.
• Evidence of ARG enrichment and persistence in the agricultural environment was observed.

Conclusions:

• Manure application practices require careful management to mitigate the spread of antibiotic resistance.
• Understanding the environmental fate of ARGs is crucial for safeguarding public health.
• Integrated strategies addressing antibiotic use in agriculture and manure management are essential to combat the growing antibiotic resistance crisis.