Substrate	Reference(s)	Comment(s)
3-hydroxybenzoic acid	Jones, D. C. N., & Cooper, R. A. (1990). Catabolism of 3-hydroxybenzoate by the gentisate pathway in Klebsiella pneumoniae M5a1. Archives of Microbiology, 154(5), 489–495. https://doi.org/10.1007/bf00245233	-
4-hydroxybenzoic acid	Jones, D. C. N., & Cooper, R. A. (1990). Catabolism of 3-hydroxybenzoate by the gentisate pathway in Klebsiella pneumoniae M5a1. Archives of Microbiology, 154(5), 489–495. https://doi.org/10.1007/bf00245233	-
benzoic acid	Jones, D. C. N., & Cooper, R. A. (1990). Catabolism of 3-hydroxybenzoate by the gentisate pathway in Klebsiella pneumoniae M5a1. Archives of Microbiology, 154(5), 489–495. https://doi.org/10.1007/bf00245233	-
kraft lignin	Deschamps, A. M., Mahoudeau, G., & Lebeault, J. M. (1980). Fast degradation of kraft lignin by bacteria. European Journal of Applied Microbiology and Biotechnology, 9(1), 45–51. https://doi.org/10.1007/bf00500001	-
protocatechuic acid	Jones, D. C. N., & Cooper, R. A. (1990). Catabolism of 3-hydroxybenzoate by the gentisate pathway in Klebsiella pneumoniae M5a1. Archives of Microbiology, 154(5), 489–495. https://doi.org/10.1007/bf00245233	-