Korean Journal Plant Pathology (한국식물병리학회지)
- Volume 14 Issue 2
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- Pages.125-129
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- 1998
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- 0256-8608(pISSN)
Effect of Carbon Sources and Culture Temperature on Pectate Lyase Production in Phytopathogenic Bacteria
탄소원과 배양온도가 식물 병원세균의 Pectate lyase 생산에 미치는 영향
Abstract
Phytopathogenic bacteria causing soft-rot many vegetables; extracellular enzymes produced by them, pectate lyase(Pel) is important pathogenicity facotrs which cause tissue maceration and cell death. Ten of seventeen plant pathogenic bacteria showed weak Pel activity, four of them showed low Pel activity and Erwinia acrotovora subsp. carotovora, E. chrysanthemi, Pseudomonas marginalis and Xanthomonas campestris pv. campestris showed high Pel activity in the polygalacturonate yeast extract agar (PAY) plate. High Pel activity of the four bacteria species produced the highest Pel activity when pectin or polygalacturonic acid (PGA) was added to minimal salts (MS) medium. Pel activity of the four bacterial species was the highest at 2
Keywords
- Erwinia carotovora subsp. carotovora;
- Erwinia chrysanthemi;
- Pseudomonas marginalis;
- Xanthomonas campestris pv. campestris;
- pectate lyase;
- maceration.