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当前位置: 首页 > 文章 > 镉对铅锌矿区小花南芥根际真菌氢离子分泌的影响 云南农业大学学报(自然科学) 2014,29 (3) 404-408
Position: Home > Articles > Effects of Cadmium on the Hydrogen Ion Secretion of Rhizosphere Fungi of Arabis alpina L.var.parviflora Franch in Abandoned Lead-zinc Mining Area Journal of Yunnan Agricultural University(Natural Science) 2014,29 (3) 404-408

镉对铅锌矿区小花南芥根际真菌氢离子分泌的影响

作  者：
何永美;刘鲁峰;谢春琼;祖艳群;湛方栋;揭学远
单  位：
云南农业大学资源与环境学院;云南农业大学招生就业处
关键词：
镉;铅锌矿区;根际真菌;培养液;pH值
摘  要：
采用液体培养法,研究镉(Cd)处理对云南会泽铅锌矿区小花南芥根际真菌氢离子分泌的影响,结果表明:(1)铅锌矿区小花南芥根际真菌氢离子分泌能力及其对Cd处理的响应在不同菌株间存在明显差异。(2)没有施加Cd处理,产酸能力强的真菌培养液pH值低至4.02,产酸能力弱的pH值高至8.45。(3)Cd处理导致产酸能力较弱的真菌培养液pH值显著下降(P<0.05),降幅最大达到3.81,培养液pH值与Cd浓度呈极显著负相关(P<0.01),表明Cd处理显著促进铅锌矿区小花南芥根际真菌分泌氢离子。
译  名：
Effects of Cadmium on the Hydrogen Ion Secretion of Rhizosphere Fungi of Arabis alpina L.var.parviflora Franch in Abandoned Lead-zinc Mining Area
作  者：
HE Yongmei;LIU Lufeng;XIE Chunqiong;ZU Yanqun;ZHAN Fangdong;JIE Xueyuan;College of Resources and Environment,Yunnan Agricultural University;Department of Enrollment and Employment,Yunnan Agricultural University;
关键词：
cadmium;;lead-zinc mining area;;rhizosphere fungi;;liquid medium;;pH value
摘  要：
The effects of cadmium on the hydrogen ion secretion of the rhizosphere fungi of Arabis alpina L.var.parviflora Franch in abandoned lead-zinc mining area in Huize,Yunnan Province,China,were investigated by liquid culture methods.The results showed that:(1) There were significantly different on hydrogen ion secretion and its responses to Cd treatment of the rhizosphere fungi between the different strains.(2) Under without Cd treatment,the pH value of liquid media for culture the rhizosphere fungi with great or weak acid producing ability was low to 4.02 or high to 8.45,respectively.(3) Cd treatments resulted in pH value decrease significantly of liquid media for culture the rhizosphere fungi with weak acid producing ability(P < 0.05).The largest decline was 3.81.Very significant negative correlation was observed between pH value of liquid media and Cd treatment concentrations(P < 0.01).That indicated that the secretion of hydrogen ion by the rhizosphere fungi with weakacid producing ability would be significantly promoted by Cd treatments.

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