PRODUCTION OF PECTATE LYASE BY THE BACTERIUM ERWINIA-CAROTOVORA VAR ATROSEPTICA

We studied the production of pectate lyase isoenzymes by the phytopath ogenic bacterium E. carotovora var. atroseptica 36A, grown in batch cu ltures on a synthetic medium containing different effectors of pectina se synthesis, as well as on media supplemented with plant components. Certain principles concerning the regulation of the synthesis of indiv idual pectate lyase isoenzymes have been established. We showed that t he presence of certain spectra of pectate lyase isoenzymes in the infe cted plant tissues were a function of the plants' chemical composition .