Explore the Potential of a Plant Phospholipase as an Antimicrobial
Chen, C.; Xu, S.; Li, Y.
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Global public health is increasingly threatened by the fast emergence of antibiotic resistance, and novel types of antibiotics are urgently needed. Metazoans have evolved their own antimicrobial mechanism, such as human group IIA secreted phospholipase A (sPLA2), which can efficiently inhibit the growth of gram-positive bacteria, but with much lower efficiency toward gram-negative bacteria. Here, we verified the antibacterial activity of a plant lipase, PLIP1 from Arabidopsis thaliana, against the gram-negative bacteria Escherichia coli, which belongs to the WHO priority 1 (critical) pathogen Enterobacteriaceae family. We also explored the potential of evolving PLIP1 as a more potent antimicrobial agent towards E. coli. Our results imply the possibility of using plant lipases as a potential antimicrobial and shed light on the future exploration of plant enzymes for novel and more efficient antibacterial agents.
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