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学科主题: Biotechnology & Applied Microbiology; Environmental Sciences
题名: Contribution to deterioration of polymeric materials by a slow-growing bacterium Nocardia corynebacterioides
作者: Pan, L ; Gu, JG ; Yin, B ; Cheng, SP
通讯作者: gujiguang@163.com
关键词: Biodegradation ; Biofilm ; Bideterioration ; Polymeric materials ; Rubber product ; Scanning electron microscopy ; Pseudomonas aeruginosa ; Alcaligenes xylosoxidans
刊名: INTERNATIONAL BIODETERIORATION & BIODEGRADATION
发表日期: 2009
卷: 63, 期:1, 页:24-29
收录类别: sci
部门归属: [Gu, Ji-Guang] Jinan Univ, Dept Ecol, Inst Hydrobiol, Guangzhou 10015, Guangdong, Peoples R China; [Pan, Li] Univ Hong Kong, Lab Environm Micorbiol & Toxicol, Sch Biol Sci, Hong Kong, Hong Kong, Peoples R China; [Yin, Bo] Chinese Acad Sci, Key Lab Trop Marine Environm Dynam LED, S China Sea Inst Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Cheng, Shu-Pei] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210093, Peoples R China
项目归属: LED
摘要: Bacteria capable of degrading polymeric products were isolated from several sources including tap water, sediment, and a deteriorated polymeric product. Alcaligenes xylosoxidans; T2, Pseudomonas aeruginosa GP10, and Nocardia corynebacterioides S3 were able to utilize rubber products as a sole source of carbon and energy. These microorganisms showed different growth patterns in mineral salt media (MSM) supplemented with rubber strips or with the rubber extract. A. xylosoxidans T2, P. aeruginosa GP10 and N. corynebacterioides S3 reduced the weight of the rubber product by approximately 2.0, 4.0 and 5.3%, respectively, after 70 days of incubation with the rubber product in MSM. On average, 0.45 mg (water-soluble carbon) g(-1) of the rubber product was released into solution phase after 7 days of incubation. Growth of N. corynebacterloides S3 was initially slower but exceeded the other two bacteria upon colonization of the polymer products. N. corynebacterioides S3 formed a dense biofilm on surfaces of the rubber product as observed under scanning electron microscopy. This study suggests that indigenous microorganisms in a range of environments are capable of degrading polymeric products through utilization of chemicals released from the polymer matrix, but the slow-growing microorganisms on material surfaces have a much more pronounced role in the materials deterioration. (c) 2008 Elsevier Ltd. All rights reserved.
原文出处: 查看原文
WOS记录号: WOS:000263144800005
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/6155
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Pan, L; Gu, JG; Yin, B; Cheng, SP.Contribution to deterioration of polymeric materials by a slow-growing bacterium Nocardia corynebacterioides,INTERNATIONAL BIODETERIORATION & BIODEGRADATION,2009,63(1):24-29
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