【作者】 程萍； 喻国辉； 陈燕红； 杨鹏； 陈远凤；

【Author】 CHENG Ping YU Guo-hui CHEN Yan-hong YANG Peng CHEN Yuan-feng (Zhuhai Agricultural Research Center,Zhuhai 519070,China)

【机构】 珠海市农业科学研究中心；

【摘要】 本实验用以苯丙烯酸为唯一碳源的无机盐培养基筛选到6株能有效降解苯丙烯酸和苯甲酸的光合细菌。其中菌株3-1对0.5 g/L 苯丙烯酸的降解效果最好,降解率为99.09%, 而对更高浓度的苯丙烯酸的降解率却很低;菌株2-1对0.5 g/L 的苯甲酸的降解率最高,其生物降解率为84.53%。通过细胞形态、菌落和培养特征、以及生理特性等研究,初步鉴定 1-2,2-1和2-3为红假单胞菌属菌株,2-2为红游动菌属菌株。其它两株3-1和3-2的培养特征和生理特性与紫色红假单胞菌的一样,但由于是 G~+菌,所以待定。更多还原

【Abstract】 Six microbes were isolated from the mud of three pounds of Pingsha town Doumen district Zhuhai city which were able to degrade cinnamic and benzoic acids after enrichment in basal medium including cinnamic acid as the sole carbon and energy source.Strain 3-1 could degrade 0.5 g/L of cinnamic acid efficiently,its degradation rate was 99.09%,but the rate was very low for high concentration of cinnamic acid;strain 2-1 could degrade 84.53% of 0.5 g/L benzoic acid.Through identification of their morphology,cultural characteristics and utilization of much different carbon source,strain 1-2,2-1,and 2-3 were believed to be Rhodopseudomonas, strain 2-2 was Rhodoplanes.更多还原