Abstract
Gram-negative bacteria most often use N-acyl homoserine lactones (AHLs) as intercellular quorum-sensing signal molecules. In this study, it was demonstrated that rice plants contain AHL mimic molecules that are very sensitive to the highly specific AiiA lactonase enzyme and can activate three different AHL bacterial biosensors, indicating that the compounds have a homoserine lactone structure and could be AHLs. The possible source and biological significance of this finding are discussed.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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4-Butyrolactone / analogs & derivatives*
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4-Butyrolactone / metabolism
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Bacterial Proteins / metabolism
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Biosensing Techniques
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Escherichia coli / metabolism
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Gene Expression Regulation, Bacterial
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Metalloendopeptidases / metabolism*
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Oryza / chemistry*
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Oryza / metabolism
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Oryza / microbiology*
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Plant Leaves / chemistry
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Plant Leaves / metabolism
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Plant Stems / chemistry
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Plant Stems / metabolism
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Quorum Sensing*
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Signal Transduction*
Substances
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Bacterial Proteins
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homoserine lactone
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Metalloendopeptidases
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4-Butyrolactone