| 重金属生物效应热化学研究──I .4种重金属离子对丝状真菌生长抑制作用 |
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| 引用本文： | 颜承农,刘义,俞芸,望天志,宋昭华,屈松生. 重金属生物效应热化学研究──I .4种重金属离子对丝状真菌生长抑制作用[J]. 武汉大学学报(工学版), 1997, 0(5) |
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| 作者姓名： | 颜承农 刘义 俞芸 望天志 宋昭华 屈松生 |
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| 作者单位： | 武汉大学，荆州师范高等专科学校化学系 |
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| 摘 要： | 用微量热法研究了４种重金属离子对丝状真菌（黑根霉菌）生长抑制的热功率输出曲线，得到了它在不同浓度重金属离子作用下的生长速率常数ｋ、抑制率Ｉ、半抑制浓度ＩＣ５０等参数，其抑制顺序为：Ｃｄ２＋＞Ｈｇ２＋＞Ｐｂ２＋＞Ｃｕ２＋．
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| 关 键 词： | 微量热法；重金属离子；黑根霉菌；热化学 |
Thermochemical Studies of Bioeffect of Heavy Metal I.The Inhibition of Four Kinds of Heavy Metal Ions on Filamentous Fungi |
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| Yan Chengnong Liu Yi Yu Yun Wang Tianzhi Song Zhaohua Qu Songsheng. Thermochemical Studies of Bioeffect of Heavy Metal I.The Inhibition of Four Kinds of Heavy Metal Ions on Filamentous Fungi[J]. Engineering Journal of Wuhan University, 1997, 0(5) |
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| Authors: | Yan Chengnong Liu Yi Yu Yun Wang Tianzhi Song Zhaohua Qu Songsheng |
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| Affiliation: | Wuhan University |
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| Abstract: | By using microcalorimetric method, the growth thermogenetic curves of Rhizopus nigricans inhibited by four kinds of heavy metal ions are determined, parameters such as growth rate constants k, inhibitory ratio I, and half inhibitory concentration IC 50 etc.are obtained. The experimental results show that four kinds of heavy metal ions can inhibit Rhizopus nigricans growth obviously, low concentration of Cu 2+ has promoting action. The inhibitory sequence is Cd 2+ > Hg 2+ > Pb 2+ > Cu 2+ , half inhibitory concentration of them are Cd 2+ 0.8μg5ml -1 , Hg 2+ 1.7μg5ml -1 , Pb 2+ 48.0μg5ml -1 , Cu 2+ 110.0μg5ml -1 . |
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| Keywords: | microcalorimetric method heavy metal ions Rhizopus nigricans thermochemistry |
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