Response of a heterotrophic denitrification system to aminopyralid stress: a comparative analysis of nitrogen removal performance and microbial community structure

Key Points

• Nitrogen removal performance declines significantly under aminopyralid stress, affecting system efficiency.
• Community structure analysis reveals shifts in microbial populations, notably decreased diversity and function.
• Assessment through comparative analysis highlights the resilience and adaptability of denitrifying bacteria to environmental stressors.
• Findings indicate potential ecological risks associated with the use of aminopyralid, emphasizing the need for cautious application.