Autotroph & heterotroph bacteria

1. By
• Aji C.Wicaksono
• Amin Tan Tara
• Inra Sari
• Tri Srihani
• Tri Sulistyorini

2. Autotroph Bacteria
Autotroph Bacteria is a bacteria that produces
complex organic compounds from simple
inorganic molecules using energy from light or
inorganic chemical reactions.
Autotroph Bacteria that obtains carbon from
organic compounds but obtains energy from light is
called a photoautotroph, while Autotroph Bacteria
that obtains carbon from organic compounds but
obtains energy from the oxidation of inorganic
compounds is termed a chemoautotroph.

3. Photoautotroph Bacteria
Photoautotroph Bacteria is a bacteria that carry out
photosynthesis.
Energy from sunlight, carbon dioxide and water are
converted into organic materials. Photosynthetic bacteria
have a substance called bacteriochlorophyll, live in lakes
and pools, and use the hydrogen from hydrogen sulfide
instead of from water, for the chemical process. (The
bacteriochlorophyll pigment absorbs light in the extreme UV
and infra-red parts of the spectrum which is outside the
range used by normal chlorophyll).

4. Bacteriochlorophyll
Thiocystis sp.
Photoautotroph Bacteria

5. Chemoautotroph Bacteria is a bacteria that
obtain energy from chemical reactions,
synthesize all necessary organic compounds
from carbon dioxide .
Most Chemoautotroph Bacteria live in hostile
environments such as deep sea vents and are
the primary producers in such ecosystems.
Chemoautotroph Bacteria

6. Nitrosomonas is a genus of
ammonia-oxidizing
proteobacteria. They are
important players in wastewater
treatment plants, where they get
rid of excess ammonia by
converting it to nitrite.
Nitrosomonas
Nitrosococcus is a small genus of
marine, ammonia-oxidizing bacteria.
They are primarily found in brackish
water environments, but recently
strains were isolated in wastewater. A
species of this bacteria were first
isolated in 1965 and was called
Nitrosocystis oceanus, which later
changed to Nitrosococcus oceani, the
name by which it is now known.
Nitrosococcus
Chemoautotroph Bacteria

7. Chemoautotroph Bacteria
Gallionella
Gallionella ferruginea is an
iron-oxidizing
chemolithotrophic bacterium
that has been found in a
variety of different aquatic
habitats. It has been known for
150 years that these bacteria
play an important part in
oxidizing and fixing iron.

8. Heterotroph Bacteria
Heterotroph Bacteria, is a bacteria that
requires organic substrates to get its
chemical energy for growth and development.
Heterotroph Bacteria is divided into 4
types:
• Parasite Bacteria
• Saprophyte Bacteria
• Pathogen Bacteria
• NonPathogen Bacteria

9. Parasite Bacteria
Parasite Bacteria is a bacteria that obtain energy from it’s
host. It lives in human, animal, or plant. If it causes disease
to it’s host, it is called pathogen.
Mycobacterium tuberculosis
Mycobacterium tuberculosis is a
acid fast bacteria, which can form
acid-stable complexes when
certain arylmethane dyes are
added.
Bacillus anthracis
Bacillus anthracis is a
Gram-positive, rod-shaped
bacterium, 1 - 1.2µm in
width and 3 - 5µm in length.
It lives in soils worldwide at
mesophilic temperatures

10. Parasite Bacteria
Clostridium tetani
Clostridium tetani is a rod
shaped Gram-positive
bacterium. The rods
arrange themselves as
pairs and chains as well as
single cells. It is usually
found in soil and feces. This
bacterium is present on all
continents of the earth
except Antarctica.

11. Saprophyte Bacteria
Escherichia coli
E. coli is an aerobic, gram-negative, rod
shaped bacteria that can be commonly
found in animal feces, lower intestines
of mammals, and even on the edge of
hot springs.
Lactobacillus bulgaricus
Lactobacillus bulgaricus is a
bacteria that used for yoghurt
production.
Saprophyte Bacteria is a bacteria that obtain nutrients from dead organic
matter.

12. Pathogen Bacteria
Pathogen Bacteria , is a bacteria that causes
disease or illness to its host
Neisseria gonorrhoeae
N. gonorrhoeae is highly efficient
in using transferrin-bound iron for
in vitro growth. Many strains can
also utilize lactoferrin-bound iron.
The bacteria bind only human
transferrin and lactoferrin. This
specificity is thought to be the
reason these bacteria are
exclusively human pathogens.

13. Escherichia coli
Most E. coli live in our
intestines, where they help
our body breakdown the food
we eat as well as assist with
waste processing, vitamin K
production, and food
absorption.
NonPathogen Bacteria is a bacteria that doesn’t causes
disease or illness to its host
NonPathogen Bacteria