摘要
The biodegradations of phenol and 4-chlorophenol （4-cp） were studied using the mutant strain CTM 2 obtained by the He-Ne laser irradiation on wild-type Candida tropicalis. The results showed that the capacity of the CTM 2 to biodegrade 4-cp was increased up to 400 mg·L^-1 within 59.5 h. In the dual-substrate biodegradation both velocity and capacity of the CTM 2 to degrade 4-cp increased with low-concentration phenol. A totalof 400 mg·L^-1 4-cp was completely degraded within 50.＇5 h in thepresence of 300 mg·L^-1 phenol. The maximum 4：cp biodegegradation could reach 440 mg·L^1 with 120 mg·L^1 phenol. Low-concentration 4-cp caused great inhibition on the CTM 2 to degrade phenol. In addition, the kinetic behaviors were described using the kinetic model proposed in this lab.
酚和 4-chlorophenol (4-cp ) 的 biodegradations 用 He-Ne 激光照耀在野类型的 Candida tropicalis 上获得的变异的紧张 CTM 2 被学习。结果证明到 biodegrade 4-cp 的 CTM 2 的能力被增加直到 400 mg 路 L ? 1 在 59.5 h 以内。在双底层的 biodegradation， 4-cp 与低集中的酚增加了降级的 CTM 2 的速度和能力。400 mg 路 L 的一个总数 ? 1 4-cp 完全面对 300 mg 路 L 在 50.5 h 以内被降级 ? 1 酚。最大的 4-cp biodegradation 能到达 440 mg 路 L ? 1 与 120 mg 路 L ? 1 酚。低集中的 4-cp 引起了 CTM 2 上的大抑制降级酚。另外，运动行为用在这个实验室建议的运动模型被描述。
基金
Supported by the science and Technology Innovative Talents Foundation of China （2006RFQXS070）, the Youth Academic Cadreman Project of Heilongjiang Province （1152G068）, Scientific Research Fund of Heilongjiang Province （11523063） and the Science Foundation for Post Doctorate of China （20070410268）.
