摘要
研究了盆栽条件下添加苦参腐解物对酚酸物质(香草醛和肉桂酸)胁迫下茄子生长及根际土壤微生物种群数量和土壤酶活性的影响。与对照相比,苦参腐解物处理促进了酚酸作用下茄子的株高和茎粗生长,增加了茄子土壤微生物的种群数量,尤其增加了细菌和放线菌数量。随着外源香草醛和肉桂酸浓度的增加,细菌和放线菌数量先增大后减小,而真菌数量先降低后增加;同时,茄子根际土壤过氧化氢酶、多酚氧化酶、脲酶的活性均高于对照,呈先增大后降低的变化趋势。
A pot experiment was conducted to study the effects of Sophora flavescens decayed products on the growth of eggplant （Solanum melongena） and the microbial populations and enzyme activities in its rhizosphere soil under the stress of vanillin and cinnamic acid.Compared with the control,the addition of S.flavescens decayed products promoted the plant height and stem diameter of S.melongena,and increased the amounts of microbial populations,especially of bacteria and actinomycetes,in rhizosphere soil.With the increasing stress of vanillin and cinnamic acid,the amounts of bacteria and actinomycetes in rhizosphere soil decreased after an initial increase,while that of fungi was in reverse.The addition of S.flavescens decayed products also increased the activities of catalase,polyphenol oxidase,and urease in rhizosphere soil,which had the same variation trend as the amounts of bacteria and actinomycetes with the increasing stress of test phenolic acids.
出处
《生态学杂志》
CAS
CSCD
北大核心
2010年第4期735-740,共6页
Chinese Journal of Ecology
基金
国家自然科学基金项目(30771469)
国家科技支撑计划重点项目(2008BADA6B02)
辽宁省教育厅高等学校创新团队资助项目(2009T087)
关键词
腐解物
苦参
酚酸类物质
茄子
土壤微生物活性
decayed product
Sophora flavescens
phenolic acid
eggplant
soil biological activity
