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Contribution to deterioration of polymeric materials by a slow-growing bacterium Nocardia corynebacterioides
Pan, L; Gu, JG; Yin, B; Cheng, SP;
AbstractBacteria 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.
Department[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
KeywordBiodegradation Biofilm Bideterioration Polymeric Materials Rubber Product Scanning Electron Microscopy Pseudomonas Aeruginosa Alcaligenes Xylosoxidans
Subject AreaBiotechnology & Applied Microbiology ; Environmental Sciences
Indexed Bysci
Funding ProjectLED
WOS IDWOS:000263144800005
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Recommended Citation
GB/T 7714
Pan, L,Gu, JG,Yin, B,et al. Contribution to deterioration of polymeric materials by a slow-growing bacterium Nocardia corynebacterioides[J]. INTERNATIONAL BIODETERIORATION & BIODEGRADATION,2009,63(1):24-29.
APA Pan, L,Gu, JG,Yin, B,Cheng, SP,& to deterioration of polymeric materials by a slow-growing bacterium Nocardia corynebacterioides.INTERNATIONAL BIODETERIORATION & BIODEGRADATION,63(1),24-29.
MLA Pan, L,et al."Contribution to deterioration of polymeric materials by a slow-growing bacterium Nocardia corynebacterioides".INTERNATIONAL BIODETERIORATION & BIODEGRADATION 63.1(2009):24-29.
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