Bacterial Conjugation
Bacterial Conjugation is genetic recombination in
which there is a transfer of DNA from a living
donor bacterium to a recipient bacterium, requiring
cell to cell contact.
Conjugation idea was first observed in 1946 by the
elegantly simple experimental work of Joshua
Lederberg and Edward Tatum.
• The 3 conjugative
+
processes
I. F conjugation
II. Hfr conjugation
III. Resistance plasmid conjugation
, I. F+ Conjugation Process
F+ Conjugation- Genetic recombination in
which there is a transfer of an F+ plasmid
but not chromosomal DNA from a donor
bacterium to a recipient bacterium.
• Other plasmids present in the cytoplasm of
the bacterium, such as those coding for
antibiotic resistance, may also be
transferred during this process.
Bacterial Conjugation is genetic recombination in
which there is a transfer of DNA from a living
donor bacterium to a recipient bacterium, requiring
cell to cell contact.
Conjugation idea was first observed in 1946 by the
elegantly simple experimental work of Joshua
Lederberg and Edward Tatum.
• The 3 conjugative
+
processes
I. F conjugation
II. Hfr conjugation
III. Resistance plasmid conjugation
, I. F+ Conjugation Process
F+ Conjugation- Genetic recombination in
which there is a transfer of an F+ plasmid
but not chromosomal DNA from a donor
bacterium to a recipient bacterium.
• Other plasmids present in the cytoplasm of
the bacterium, such as those coding for
antibiotic resistance, may also be
transferred during this process.
