Bioremediation marine environment

Prince R. 1993. Petroleum spill bioremediation in marine environments. Critical Reviews in Microbiology 19(4) 217-242. 

Calcification by bacteria. Lime-water application seems not to guarantee sufficient consolidation. Precipitation of calcite by microorganisms is known to occur in freshwater and marine environments, as well as in soil, and this led to trials of bioremediation on heritage surfaces. Very recently, approaches using calcification due to bacterial activity have even been carried out particularly on stone and architectural surfaces (see page 236). Remediation by several bacteria was shown to result in the formation of newly developed calcite precipitations. For this, chemoorganotrophic bacteria, as well as nutrients, were supplied to the surfaces. Up to now the role of bacteria is not completely understood, however, studies on marine bacteria revealed three main mechanisms (i) calcium-binding membrane proteins, (ii) ionophores, and (iii) extracellular materials on cell surface. 

Prince, R. C., Petroleum spiU bioremediation in marine environment, Crit. Rev. Microbial., 19, 217-242, 1993. 

Bioremediation is the reversing of pollution with the aid of microorganisms. In the marine environment, the two main types of pollutants are petroleum products, especially polycyclic aromatic hydrocarbons (PAHs), and heavy metals (Juhasz and Naidu, 2000 Vidali, 2001). For petroleum derivatives must be found bacteria that are capable of gradually degrading aromatic and heteroaromatic systems... 

Carvalho MF, Alves CCT, Ferreira MIM, De Marco P, Castro PML (2002) Isolation and initial characterization of a bacterial consortium able to mineralize fluorobenzene. Appl Environ Microbiol 68 102-105 Cheung KH, Gu J-D (2005) Reduction of chromate (Cr042 ) by a Bacillus mag-netarium isolated from marine. World J Microbiol Biotechnol 21 213-219 Cheung KH, Gu J-D (2007) Mechanism of hexavalent chromium detoxification by microorganisms and bioremediation application potential A review. Int Biodeter Biodegr 59 8-15... 

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