Polygalacturonase has the same substrate specificity as pectate lyase. This enzyme is produced by Erwinia carotovora subspp. but not by Erwinia chyrsanthemi.
与果胶酸裂解酶的底物相同。胡萝卜软腐欧氏菌的多个亚种产生此酶，但菊欧氏菌不产生。
Erwinia carotovora
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Pectobacterium carotovorum
Pectobacterium carotovorum is a bacterium of the family Enterobacteriaceae; it used to be a member of the genus Erwinia.
The species is a plant pathogen with a diverse host range, including many agriculturally and scientifically important plant species. It produces pectolytic enzymes that hydrolyze pectin between individual plant cells. This causes the cells to separate, a disease plant pathologists term bacterial soft rot. Specifically, it causes beet vascular necrosis and blackleg of potato and other vegetables (hence the name carotovora - "carrot-eater"), as well as slime flux on many different tree species.