| Dormant
Structure |
Producing
Bacteria |
Properties |
| Endospores |
Gram
Positive
Bacteria
-
Bacilli
(
Aerobic)
-
Clostridia
(
anaerobic)
-
Sporosarcina |
Asexual,
formed
with
in
the
cell.
One/Cell,heat
resistant,distinct
from
vegetative
cell,refractile
contain
dipicolinic
acid |
| Exospores |
Some
Actinomycetes |
Formed
by
the
mycelical
gragmentation.simillat
to
conidia,
produced
externally
in
large
numbers.
Not
very
heat
resistant,
non
refractile,
no
dipicolinic
acid |
| Cysts |
Azotobacter,
Arthrobacter |
modified
cells,not
heat
resistant,
simillar
in
composition
to
vegetative
cells,dipicolinic
acid
absent,non
refractile |
