Abstract
A 2.1 kb Bam H1 DNA fragment encoding a pectate lyase (PL) enzyme was isolated from an Erwinia carotovora subsp. atroseptica (Eca) cosmid library. The fragment was labeled with 32P-CTP and hybridized to total DNA digests from selected bacteria which included plant-invasive as well as plant associative organisms. The pel gene probe hybridized to E. carotovora subsp. carotovora (Ecc) DNA under all conditions tested. Hybridization to DNAs from Agrobacterium tumefaciens and Pseudomonas marginalis was observed at low stringency conditions (45°C). No hybridization was observed between the pel gene probe and six other DNA samples.
Published Version
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