AASALAMU ALIKUM dea friends... i am urbas ashiq...(MSC Microbiology) i am hear to get help and help you ghyz regarding the knowledge of microbiology and other related fields

1. Presented By : Urbas Ashiq
MSc Microbiology

2. 1) BACTERIAL BIOFILM
2) FORMATION...
3) SIGNIFICANCES and
IMPACTS OF BACTERIAL
BIOFILMS....

3. Biofilm is a well assembled
microbial community of bacteria
in general along with other
microbes like fungi algae protozoa

4. Bacterial Bio film is made up
of bacteria and their
extracellular polymeric
substances by which they
attach to biotic or a biotic
surfaces...

6. 1) A BACTERIAL BIO FILM IS A SURFACE
ATTACHED COMMUNITY OF BACTERIAL CELLS.
2) FORMS IN AN AQUEOUS ENVIRONMENT,
INCLUDING RIVERS,OCEANS,DRAINS....

7. 3) Involves a
series of
bacterial
processes
and begins as
bacteria
Seattle up on
any surface
and multiply

8. 4) Requires
many bacteria,
and may
involve different
types of bacteria
working
together...
5) Bacteria are
equipped with a
molecular
signalling system,
used in a process
called “QUORM
SENSING”.

9. 6)These signals triggers changes in Gean regulation
7)This causes reorganisation of cellular
machinery for biofilm formation purpose...

10. 8) Now Bacteria
produces thin
extracellular fibres
called “Pilli’”.
Used for attachment
to the substrate and
to the each other.
Pilli are also
used to adjust their
position , in a
process called
“twiitching
motility”.

11. 9) NOW BACTERIA SECRET A SLIMY
EXTRACELLULAR MATRIX OF
PROTEINS,POLYSACCHIRIDES AND NUCLEIC
ACIDS...

13. 12) These cells
may produce
flagella and
swim to more
favourable areas
,where they will
form a new
Biofilm

14. Uses and impact...

15. PROBLEMATIC IN SEVERAL FOOD
INDUSTRIES DUE TO THE ABILITY TO
FORM ON PLANTS DURING
INDUSTRIAL PROCESSES.
Bio films can also be
harnessed for constructive
purposes.

16. Bio films can absorb a variety of
toxic substances including metal
cations, toxins and antibiotics and
protect residing bacteria from
external environment....

17. Protects residing Bacteria from
external environment such as UV
radiation, pH,osmotic shock etc...

18. Protects residing Bacteria from
external environment such as UV
radiation, pH,osmotic shock etc...

19. Their presence in water
pipelines, food processing units
are also a subject to worry...

20. Moreover their formation leads to
development of different species
which are muti-drug resistant and
is a cause of grate havoc to available
treatment....

21. Thus this is very essential to stop
their formulation at first stage by
use of proper and clean material
as well as effective sanitization
and treatment...

22. Thank You