中文摘要：

采用PDA培养基添加不同浓度的单一重金属离子,研究10种重金属对溶磷黑曲霉（Aspergillusniger）生长的影响。结果表明：较低浓度Cu2＋（低于100mg/L）对黑曲霉的整个生长早期有促进作用;Pb2＋抑制黑曲霉孢子在培养基中的萌发;Co2＋浓度在100mg/L以下对黑曲霉生长的抑制较为轻微;Ag＋胁迫对黑曲霉菌落直径的影响变化规律与Zn2＋基本一致;Se4＋、Ni2＋、Cd2＋、Hg＋和Cr6＋浓度分别在200、200、100、25、25mg/L浓度时,黑曲霉生长受到完全抑制。10种重金属离子对黑曲霉抑制作用强弱顺序大致为：Hg2＋、Cr6＋〉Cd2＋〉Se4＋〉Ni2＋〉Zn2＋〉Ag＋〉Co2＋〉Pb2＋〉Cu2＋。

英文摘要：

Ten kinds of heavy metals were added in PDA medium to observe the growth of Aspergillus niger. The results showed that Cu2＋ in low concentration can promoted the growth of Aspergillus niger. Pb2＋ inhibited spore germination in culture medium. The inhibition of Co2＋ when its concentration was less than 100 mg/L was very slight. The change of colony diameter by Ag ＋ Stress was consistent with Zn2＋, the growth of Aspergillus niger completely inhibited when Se4＋and Ni2＋ concentration were 200 mg/L,Cd2＋ concentration was 100 mg/L,Hg＋ and Cr6＋ concentration were 25 mg/L. The order of inhibition was Hg2＋、Cr6＋Cd2＋Se4＋Ni2＋Zn2＋Ag＋Co2＋Pb2＋Cu2＋.