BACTERIAL SPORES

BACTERIAL SPORES

Resistant structure formed during unfavorable conditions and enable the bacteria to survive harsh environments

POSITION

relative to the parent cell; sporangium

SUBTERMINAL

position between center and end of cell

SPHERICAL

shape that is round

OVAL/ELLIPTICAL

shape is elongated

1. CENTRAL

2. SUBTERMINAL

3. TERMINAL

3 positions in bacterial spores

1. SPHERICAL

2. OVAL/ELLIPTICAL

2 shapes in bacterial spores

BULGING

diameter is wider than vegetative cell causing sporangium to swell around spore

CLOSTRIDIUM TETANI

Common in clostridium species (has terminal circle bulging spore; drumstick appearance)

NON-BULGING

Not swollen and spores’ diameter is the same as/less than the cells diameter. Cell wall does not bulge outwards

BACILLUS ANTHRACIS

Common in bacillus species (non-bulging)

BACILLUS CEREUS

bacterial spore type: spherical center

BACILLUS ANTHRACIS

bacterial spore type: oval center

CLOSTRIDIUM BOTULINUM

bacterial spore type: oval subterminal

CLOSTRIDIUM TETANI

bacterial spore type: spherical subterminal a bulging type

CLOSTRIDIUM DIFFICILE

bacterial spore type: oval terminal

UNICELLULAR

Single-celled organisms Bacteria & protozoa

MULTICELLULAR

Multiple cells Fungi (molds)

E. COLI

example of unicellular

ASPERGILLUS

example of multicellular

BIOFILMS

Aggregates of microorganisms encased in a sulfur-produced matrix anc they form on surfaces and contribute to microbial resistance in healthcare settings

name all the spore position or shape