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. 1991 Jun;57(6):1799–1804. doi: 10.1128/aem.57.6.1799-1804.1991

Degradation of the Herbicide Glyphosate by Members of the Family Rhizobiaceae

C-M Liu 1,*, P A McLean 1, C C Sookdeo 1, F C Cannon 1,†
PMCID: PMC183471  PMID: 16348512

Abstract

Several strains of the family Rhizobiaceae were tested for their ability to degrade the phosphonate herbicide glyphosate (isopropylamine salt of N-phosphonomethylglycine). All organisms tested (seven Rhizobium meliloti strains, Rhizobium leguminosarum, Rhizobium galega, Rhizobium trifolii, Agrobacterium rhizogenes, and Agrobacterium tumefaciens) were able to grow on glyphosate as the sole source of phosphorus in the presence of the aromatic amino acids, although growth on glyphosate was not as fast as on Pi. These results suggest that glyphosate degradation ability is widespread in the family Rhizobiaceae. Uptake and metabolism of glyphosate were studied by using R. meliloti 1021. Sarcosine was found to be the immediate breakdown product, indicating that the initial cleavage of glyphosate was at the C—P bond. Therefore, glyphosate breakdown in R. meliloti 1021 is achieved by a C—P lyase activity.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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