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汞离子胁迫对茭白及其体内黑粉菌的影响 被引量:5

Effect of Intimidation of Mercury Ion on Zizania latifolia Turcz. and Ustilago esculenta P. Henn. in its Body
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摘要 研究了Hg2+对茭白(ZizanialatifoliaTurcz.)体内共生的茭白黑粉菌(UstilagoesculentaP.Henn.)的影响.对不同浓度Hg2+胁迫下茭白黑粉菌在幼茎中的分布状态进行了解剖观察,分析了在此过程中的MDA含量、可溶性蛋白含量、SOD活性和POD活性等一系列指标.试验结果表明,2mg/L以上的Hg2+胁迫能导致茭白黑粉菌的消亡,导致茭白茎尖不能膨大. The paper deals with the effect of Hg^2+ on Zizania latifolia Turcz. and Ustilago esculenta P. Henn. in its body. Under intimidation of different concentrations of Hg^2+ , the distribution state of Ustilago esculenta P. Henn in the tender stem of Zizania latifolia Turcz. is observed anatomically. During the process, a series of indexes as accumulation of MDA and soluble protein, SOD activities and POD activities are studied. The results indicated that Hg^2+ intimidation above 2 mg/L can lead to disappearance of Ustilago esculenta P. Henn. and unexpandibility of stem tip of Zizania latifolia Turcz.
出处 《南京师大学报(自然科学版)》 CAS CSCD 北大核心 2006年第4期79-81,共3页 Journal of Nanjing Normal University(Natural Science Edition)
基金 江苏省教育厅自然科学基金(01KJD180005 02KJD180009)资助项目.
关键词 菱白 菱白黑粉菌 HG^2+ 胁迫 Zizania latifolia, Ustilago esculenta, Hg^2+ , intimidation
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