The study on the reaction of deuteromycetes JYX-201 to heavy metals in polluted coastal areas

BAI Shu-meng; TIAN Li; SHI Zheng-ping; ZHANG Jiu-ming; JIANG Hui-chao

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BAI Shu-meng, TIAN Li, SHI Zheng-ping, ZHANG Jiu-ming, JIANG Hui-chao. The study on the reaction of deuteromycetes JYX-201 to heavy metals in polluted coastal areas[J]. Haiyang Xuebao, 2010, 32(5): 127-134.

Citation:

BAI Shu-meng, TIAN Li, SHI Zheng-ping, ZHANG Jiu-ming, JIANG Hui-chao. The study on the reaction of deuteromycetes JYX-201 to heavy metals in polluted coastal areas[J]. Haiyang Xuebao, 2010, 32(5): 127-134.

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The study on the reaction of deuteromycetes JYX-201 to heavy metals in polluted coastal areas

1.
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China; Biological Department, Qingdao University of Science and Technology, Qingdao 266042, China
2.
Biological Department, Qingdao University of Science and Technology, Qingdao 266042, China

Received Date: 2009-12-25

Abstract

Abstract

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.
- coastal pollution,
- indicating deuteromycetes,
- biological change

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