Prepared by John D. Story, Ph.D.
Microbial Nutrition, Ecology and Growth
Microbial Nutrients
Sources
Nutrient Categories
Environmental
Chemicals
Energy
“Building
Blocks”
(Carbon Source
and
other “bioelements”)
Essential Nutrients
“Macronutrients”
(required in “larger” amounts)
C
Na
H
Cl
N
K
O
Ca
P
Fe
S
Mg
“Micronutrients” a.k.a. “Trace
elements”
(required in “smaller” amounts)
Zn
Mn
Cu
Organic
contain Carbon
Carbohydrates
Lipids
Proteins
Nucleic Acids
etc
Inorganic
Contain
NO Carbon
Minerals,
etc
Growth
Factor
Must
be acquired via nutrient
(Cannot
be synthesized in situ)
Autotroph
Heterotroph
C-source CO2
E-source Light
“photoautotrophs”
C-source CO2
E-source “Inorganics”
”chemoautotrophs”
C-source “organics”
E-source “organics”
saprobes
parasites/pathogens
Trophisms
(Nutritional
Types)
of
of
Taking in
Include
Include