摘要
利用纸碟抑菌圈法,对分离自贮藏期马铃薯腐烂块茎的3种细菌(欧文氏菌Erwinia persicinus,泛菌属菌Pantoea sp.和假单胞菌Pseudomonas sp).进行了抑菌效果的研究。试验药剂为壳聚糖、双氧水和农用药剂爱诺链宝,后两种药剂作为对照。结果表明,壳聚糖的抑菌效果最好,即使最低浓度的壳聚糖(1.0%)对3种细菌的抑制效果也较最大浓度的其它两种药剂明显,并且随着壳聚糖浓度的增大抑菌效果增加,超过最适浓度后抑菌效果下降。对不同的细菌种类,同一浓度的壳聚糖有着不同的抑菌效果。
Inhibition effects of chitosan isolated from rotten potato tubers on Erwinia persicinus, Pantoea sp. and Pseudomonas sp. were studied by the paper dishzone inhibition assay. Three kinds of reagents were chitosan, H202 and bactericide, with H202 and bactericide being as reference groups. The inhibition effect of chitosan was best, even though the lowest concentration of chitosan （1.0%） was better than the highest concentration of the other two reagents. With the increase in chitosan, the inhibition effect was enhanced, but it was decreased beyond the optimum concentration. The same concentration of chitosan had different inhibition effects on different species of bacteria.
出处
《中国马铃薯》
2009年第6期338-341,共4页
Chinese Potato Journal
基金
转基因抗逆耐盐及抗病马铃薯新品系培育研究(GNSW-2006-01)
马铃薯优质高效配套生产技术研究与示范(2006BAD21B053)
马铃薯镰刀菌干腐病病原菌学及抗病种质资源筛选研究(GKLAU0603)资助
关键词
植物生长物质
马铃薯
同化物
产量
品质
plant growth substance
potato
assimilation substance
output
quality
