WHAT THE EVIDENCE SAYS
Eleven cultured bacterial isolates from Antarctic sediments were screened for perchlorate tolerance and removal. All grew at 10,000 mg/L in cultures, five tolerated 15,000 mg/L, and isolates reduced perchlorate by about 40–52% in separate assays.
WHY IT MATTERS / OUR READ
Worth watching for methods development in cold-region pollution remediation. The next tests are enzyme/pathway verification, growth conditions, field performance and risk to native microbial communities.
CAVEATS / UNCERTAINTY
Growth tolerance is not biodegradation; proposed enzymatic pathways were not directly measured and no ecosystem-scale intervention was attempted.
SOURCE
Puentes-Martínez et al. · Biodegradation · Antarctic isolate screening
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