Notes for microbial growth

Microbial Nutrition,
Growth, and Control


MICROBIAL GROWTH

,NUTRITION
Learning outcome
 Students should be able to:
 Describe the nutritional requirements of
microorganisms

 Describe how nutrients are acquired

 Describe the cultivation of microorganisms.

, MICROBIAL GROWTH
 Learning outcome
 Students should be able to:
 describe binary fission and the procaryotic cell cycle

 Describe the different phases of a bacterial growth curve

 Describe the different methods used for enumeration of
microbial populations

 Describe the influence of environmental factors on
microbial growth and microbial growth in natural
environments

, Microbial growth
 Growth may be defined as an increase in cellular
constituents.
 It leads to a rise in cell number when
microorganisms reproduce by processes
 budding or binary fission.

 Growth also results when cells simply become longer
or larger.
 If the microorganism is coenocytic