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Download Dehalogenation: Microbial Processes and Environmental by Max M. Häggblom, Ingeborg D. Bossert PDF

By Max M. Häggblom, Ingeborg D. Bossert

Halogenated natural compounds represent one of many greatest teams of environmental chemical substances. the commercial construction of latest halogenated natural compounds has elevated in the course of the final century peaking within the Nineteen Sixties, and carrying on with in frequent use this present day. Organohalides are crucial to a number of commercial purposes, together with use as solvents, degreasing brokers, biocides, prescription drugs, plasticizers, hydraulic and warmth move fluids, and intermediates for chemical synthesis, to call a couple of. it is very important realize the precious facets of halogenated natural compounds, in addition to their very likely deleterious impression at the setting and healthiness. attractiveness ofthe adversarial environmental results ofmanytypes oforganohalide compounds has resulted in efforts to minimize or get rid of the main difficult ones. even if organohalide compounds are usually thought of to be anthropogenic commercial compounds, they've got their counterpart in different hundreds of thousands of common biogenic and geogenic organohalides, representing such a lot sessions of natural chemical compounds. typical resources account for a good portion of the worldwide organohalogen finances. This quantity authored via well-known specialists within the box presents a present point of view on how either ordinary and artificial organohalides are shaped and degraded, and the way those approaches are integrated right into a worldwide halogen cycle. the focal point is on microbial strategies, on the grounds that those play a huge function either within the creation and degradation, i. e. , biking of halogenated natural compounds inthe setting. This e-book is prepared into 5 components. half I, creation, presents an international standpoint at the problems with organohalides and their destiny within the environment.

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Additional resources for Dehalogenation: Microbial Processes and Environmental Applications

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54:3079-3085 95. Klages U & Lingens F (1980) Degradation of 4-chlorobenzoic acid by a Pseudomonas sp. Zbl. Bakt. Hyg. I Abt. Orig. C1:215-223 96. Kluyver AJ & van Niel CB (1956) The microbe’s contribution to biology. Harvard University Press, Cambridge, Mass 97. Knackmuss H-J (1981) Degradation of halogenated and sulfonated hydrocarbons. In: Leisinger T, Hütter R, Cook AM, Nüesch J 25 (Eds) Microbial Degradation of Xenobiotics and Recalcitrant Compounds (pp 189-212). Academic Press, New York 98.

In another group of bacteria, phototrophic Rhodospirillum and Rhodopseudomonas species have been shown to grow on halogenated aliphatic acids and on 3-chlorobenzoate (44, 87, 113, 179). The mechanisms involved in the anaerobic degradation of organohalides by these phototrophic organisms is still poorly understood. 6. CONCLUDING REMARKS The following chapters bring together our current understanding of the microbial processes of organohalide degradation, including their biochemistry and genetics.

Atmos. Chem. 10:329-340 81. Iwata H, Tanabe S, Sakal N & Tatsukawa R (1993) D i s t r i b u t i o n of p e r s i s t e n t organochlorines in the oceanic air and surface sewater and the role of ocean on their global transport and fate. Environ. Sci. Technol. 27:1080-1098 82. Janssen DB, Grobben G, Hoekstra R, Oldenhuis R & Witholt B (1988) Degradation of MICROBIAL MEDIATORS OF THE HALOGEN CYCLE trans-l,2-dichloroethene by mixed and pure cultures of methanotrophic bacteria. Appl. Microbiol. Biotechnol.

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