Endopolygalacturonate

Through the centuries man has used pectic enzymes produced by microorganisms in natural fermentations to modify plant tissue to produce more useful products. One of the oldest fermentations is the process of retting, in which textile fibers, such as flax, hemp, and jute are loosened from their plant stems. Clostridium felsineum, one of the organisms involved in anaerobic retting, produced endopolygalacturonase and endopolygalacturonate lyase but not pectinesterase 178, 179). 

Davis, K.P., Lyons, G.D., Darvill, A.G. and Albersheim, P. (1984). XXV. Endopolygalacturonic acid lyase from Erwina carotovora elicits phytoalexin accumulation by releasing plant cell wall fragments. Plant Physiol. 74, 52-60. 

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