目的研究不同生长期健康与患病乌头根际土壤酶活性的动态变化。方法采用紫外分光光度法测定健康与患病乌头不同生长期蔗糖酶、脲酶和磷酸酶的活性。目的健康植株根际土壤蔗糖酶活性呈逐渐下降趋势,患病植株土壤蔗糖酶活性呈逐渐增强的趋势;在相同生长期,健康植株土壤脲酶、磷酸酶活性均低于患病植株,脲酶在3～5月均呈逐渐增强的趋势,酸性磷酸酶、碱性磷酸酶活性呈先降低后增强的趋势。结论健康与患病乌头根际土壤酶活性差异较大,为乌头病害的进一步研究提供了科学依据。

Objective To investigate the rhizosphere soil enzyme activities of healthy and diseased Aconitum carmichaeli> at various growing stagesMethods The activities of sucrase, urease, and phosphatase were measured by UV spectrophotometryResults The sucrase activity in rhizosphere soil of healthy plants showed a gradual decline trend, while a gradual increase in rhizosphere soil of diseased plant was observed; At the same growing stage, the urease and phosphatase activities in rhizosphere soil of healthy plant were lower than those of the diseased plants. The activity of urease showed a gradual increase from March to May and the activity of acid and alkaline phosphatases first decreased and then increasedConclusion Rhizosphere soil enzyme activities of the healthy and diseased A. carmichaeli are quite different. The results may provide the scientific reference for disease study of A. carmichaeli.

国家自然科学基金资助项目(30901962)