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BIOREMEDIATIONAND
BIODEGRADATION
JAYA COLLEGE OF ARTS AND SCIENCE
THIRUNINRAVUR.
By, R.HARISH KUMAR
BIOTECHNOLOGY
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Strategies for clean environment
bioremediation biodegradation
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• Bioremediation is a process of removing or degrading the toxic pollutant from the environment by using microorganism .
• commonly used micro organisms are, Pseudomonas,Flavobacterium,Arthrobacter, and Azotobacter
• Bioremediation focuses on different sources they are called as different names. plant------------- phytoremediation fungi------------- mycoremediation
Bioremediation
•Degradation or Transformation of a substance into new compounds through biochemical reactions or the actions of microorganisms such as bacteria.
Biodegradation
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BIODEGRADATION
ENVIRONMENTAL CONDITI
ON
COMPOUNDS TO DEGRAD
E
BIODEGRADATION
MICRO ORGANIS
M
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Examples :Psychrophiles----- Arthrobactersp., Psychrobacter sp., PseudomonasMesophiles--------E-coli bacteria, Staphyloccus aureus, Proteus vulgarisThermophiles-----Thermus aquaticus ,Thermococcus litoralis.
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BIOREMEDIATION
In-situ Ex-situ
INTRINSIC
ENGINEERED
LANDFARMING
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Earth warms can degrade heavy metals
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Bacteria from the deep:
Brachybacterium spMn32
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Nemesis for oil spills
Oleophillic bacteria
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GMOsGenetically modified
organism
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GMOs
The genetically engineered micro organism (GEMs)enhance the ability of degrading the contaminants. It is also said to be as a “bioaugmentation”
Genetically modifiedorganism
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Construction of superbug
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The bacterium Deinococcus radiodurans(the most radioresistant organism known) has been modified to consume and digest toluene and ionic mercury from highly radioactive nuclear waste.
Strains of Deinococcus radiodurans
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GMOs
XenobioticsPseudomonas diminuta parathion
P. olevorans Alkane
P. cepacia 2, 4, 5-Trichlorophenol
P. putida Mono-/dichloroaromaticcompounds
Alcaligenes sp 2, 4-dichlorophenoxy acetic acid
Acinetobacter sp 4- chlorobenzene
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