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《Acta Oceanologica Sinica》 2010-05
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The study on the reaction of deuteromycetes JYX-201 (Penicillium griseofulvum) to heavy metals in polluted coastal areas

BAI Shu-meng 1,2,TIAN Li1,2,SHI Zheng-ping 2,ZHANG Jiu-ming2,JIANG Hui-chao 2(1.First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China;2.Biological Department,Qingdao University of Science and Technology,Qingdao 266042,China)  
A strain sensitive to heave metals was isolated from contaminated sediments of the Jiaozhow Bay coast and identified as Penicillium griseofulvum.The biological features and enzyme active reaction of the strain under heavy metal action were investigated.Results show that certain amounts of Cu2+ and Zn2+ exerted obvious influence on this strain's morphology and pigment.The spore germination was totally restrained and the mycelium varied severely when Cu2+ and Zn2+ concentration reached 125 and 800 mg/dm3 respectively in mediums.The pigments presented from celadon to shallow yellow with the increase of Cu2+ concentration and from celadon to white with the increase of Zn2+ concentration.Within the growth concentration range,a small quantity of Cu2+ would enhance activities of CAT,GOD and MT and reached climax when Cu2+ concentration was 25 mg/dm3.When the Cu2+ concentration changed from 25 to 75 mg/dm3,the activities decreased gradually and the strain stopped growing when the concentration reached 100 mg/dm3.When the Zn2+ concentration changed from 100 to 400 mg/dm3,activities of CAT,GOD and MT increased gradually and reached climax at 400 mg/dm3 but stopped growing at 600 mg/L,because the strain could not survive in this concentration.
【Fund】: 国家自然科学基金(40776098;40976104);; 国家高技术研究发展计划(“八六三”计划)(2007AA09Z435;2007AA091507;2008AA09Z407)
【CateGory Index】: X172;X55
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