Abstract
Rhizobia are confronted by a wide variety of organic substances in soils, including aromatic substances released by plants and those of man-made origin. They have developed mechanisms to degrade and mineralize aromatic substances through the activity of oxygenases encoded by the genes present in the chromosome and in plasmid(s). Genes involved in the synthesis of some of the oxygenases have been identified and characterized. Glucose and succinate caused repression of phenol utilization. Some of the enzymes involved in aromatic metabolism including the enzymes associated with the uptake of aromatic substances by the cells have been identified and characterized. Aromatic substances, in addition to inducing catabolic genes, also induced the genes required to form active associations with the host plants (legumes).
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Latha, S., Mahadevan, A. Role of rhizobia in the degradation of aromatic substances. World Journal of Microbiology and Biotechnology 13, 601–607 (1997). https://doi.org/10.1023/A:1018598200187
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DOI: https://doi.org/10.1023/A:1018598200187