| 陈远凤， 李一平， 喻国辉，等.二氧化氯对香蕉枯萎病菌和细菌性软腐病菌的消毒效果研究[J].广东农业科学,2015,42(6):66-69 |
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二氧化氯对香蕉枯萎病菌和细菌性软腐病菌的消毒效果研究 |
| Disinfection effect of chlorine dioxide on fusariumwilt and soft rot bacteria in banana |
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| DOI： |
| 中文关键词: 二氧化氯 香蕉枯萎病菌 香蕉细菌性软腐病菌 消毒 |
| 英文关键词: chlorine dioxide Fusarium oxysporum f. sp. cubense banana soft rot bacteria disinfection |
| 基金项目: |
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| 中文摘要: |
| 研究不同浓度二氧化氯（ClO2）对土壤和水体中香蕉枯萎病菌小型分生孢子和水体中香蕉细菌性
软腐病菌的杀灭效果，为控制香蕉枯萎病和软腐病的传播提供依据。 通过统计分析消毒前后镰刀菌孢子和细
菌的数量发现：3 mg/L 以上 ClO2可将待测镰刀菌孢子 100%杀灭；20 mg/L 的 ClO2淹土不能 100%杀死土样中
的镰刀菌孢子；800 mg/L 以上 ClO2浇灌粉蕉根系周边的土壤可有效减少镰刀菌数量，高于 1 500 mg/L ClO2 消
毒液可将土壤中镰刀菌 100%杀灭。 二氧化氯消毒显著降低土壤中细菌的数量，显著增加土壤真菌的数量，并
明显减少土壤细菌和真菌的种类。 5 mg/L 的 ClO2可将水体中香蕉细菌性软腐病菌 100%杀灭。 研究结果表明，
高于 5 mg/L 的 ClO2进行水体消毒可有效预防枯萎病和软腐病通过水源传播， 对发病蕉穴土壤的消毒可以使
用 1 500 mg/L 以上的 ClO2处理以达到清除病原的目的。 |
| 英文摘要: |
| This paper tested the disinfection effect of chlorine dioxide渊ClO2冤on microconidia of banana fusarium
wilt pathogen Fusarium oxysporum f. sp. cubense (FOC009gfp strain) and banana soft rot bacteria Dickeya zeae in
aquatic and soil environments, to provide the basis for the prevention of spreading of banana fusarium wilt and
banana soft rot. The results showed that, 3 mg/L ClO2 could kill all microconidia of FOC009gfp in aquatic bioassay
system, but 20 mg/L ClO2 could not kill all the microconidia of FOC009gfp in soil bioassay system. Pouring around
the drawf banana root soil with higher than 800 mg/L ClO2 could kill soil fusarum efficiently, but only the
concentration higher than 1 500 mg/L ClO2 could kill all the fusarium in soil. ClO2 disinfection could increase the
amount of bacterium and fungi in soil significantly, but decrease the species of bacteria and fungi. 5 mg/L ClO2 could
kill all D. zeae in aquatic bioassay system. The results indicated that higher than 5 mg/L ClO2 could be used to
disinfect water and prevent the tested pathogen spreading from water, but disinfecting the soil infected by fusarium
wilt pathogen needed ClO2 concentraion of higher than 1 500 mg/L. |
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