b i o r e m e d i a t i o n a n d b i o d e g r a d a t i o n
DESCRIPTION
biotechnological approaches for bio remediationTRANSCRIPT
BIOREMEDIATIONAND
BIODEGRADATION
JAYA COLLEGE OF ARTS AND SCIENCE
THIRUNINRAVUR.
By, R.HARISH KUMAR
BIOTECHNOLOGY
Strategies for clean environment
bioremediation biodegradation
• 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
BIODEGRADATION
ENVIRONMENTAL CONDITI
ON
COMPOUNDS TO DEGRAD
E
BIODEGRADATION
MICRO ORGANIS
M
Examples :Psychrophiles----- Arthrobactersp., Psychrobacter sp., PseudomonasMesophiles--------E-coli bacteria, Staphyloccus aureus, Proteus vulgarisThermophiles-----Thermus aquaticus ,Thermococcus litoralis.
BIOREMEDIATION
In-situ Ex-situ
INTRINSIC
ENGINEERED
LANDFARMING
Earth warms can degrade heavy metals
Bacteria from the deep:
Brachybacterium spMn32
Nemesis for oil spills
Oleophillic bacteria
GMOsGenetically modified
organism
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
Construction of superbug
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
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