| 摘要: |
| 菌株YTW-10分离自山东烟台海域近海盐场泥样中。该菌能在NaCl浓度为1%～15%的培养基中生长, 最适生长NaCl浓度为7%,最适生长温度为37 ℃, 最适pH值为8。经过形态学观察、生理生化特性分析及基于16S rDNA的系统进化分析, 该菌株鉴定为交替单胞菌属。以3株水产生物致病细菌和3株农作物致病真菌作为指示菌, 检测其抑菌活性。实验结果表明, YTW-10对小麦赤霉病菌、西瓜枯萎病菌和玉米弯胞病菌有明显的抑制效果。 |
| 关键词: 交替单胞菌 抑菌活性 鉴定 |
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| 基金项目:山东省高等学校科技计划项目(J09LC01); 山东省优秀中青年科学家科研奖励基金(BS2010SW035) |
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| Identification and antimicrobial activity analysis of a marine Alteromonas YTW-10 |
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| Abstract: |
| The strain YTW-10 was isolated from marine sediments collected from the Yantai beach. It was able to grow in the medium containing 1%～15% NaCl with the optimal growth salinity of 7%. The optimum growth temperature was 37 ℃ and the initial pH value was 8. Based on morphology, biochemical characteristics, as well as phylogenetic analysis, the strain YTW-10 was identified as Alteromonas. Three marine pathogenic bacteria and three crop pathogenic fungi were used as indicators in YTW-10 antimicrobial experiment. The result showed that YTW-10 had strong antimicrobial activity to Curvlaria lunata, Fusarium ozysporum, and Fusarium graminearum Schw. |
| Key words: Alteromonas antimicrobial activity identification |
