Presentation is loading. Please wait.

Presentation is loading. Please wait.

Mohammad Emaneini, PhD Assistant Professor in Microbiology Department of Microbiology School of Medicine Tehran University.

Published byAlison Mildred Fleming Modified over 8 years ago

Similar presentations

Presentation on theme: "Mohammad Emaneini, PhD Assistant Professor in Microbiology Department of Microbiology School of Medicine Tehran University."— Presentation transcript:

1 http://tums.ac.ir/faculties/emaneini Mohammad Emaneini, PhD Assistant Professor in Microbiology Department of Microbiology School of Medicine Tehran University of Medical Sciences emaneini@tums.ac.ir

2 Emaneini M. PhD. Transformation A DNA fragments/plasmids of donor bacteria Taken up & incorporated into the genome of recipient cell Natural competence Streptococcus pneumoniae, Haemophilus influenzae, Neisseria gonorrhoea Induced competence Cold CaCl 2 & heat shock: E. coli Protoplast: Bacillus, Streptomyces Electroporation: a brief pulse of high-voltage electricity

3 Emaneini M. PhD. Transduction Transfer of DNA by Bacteriophage via Lytic & Lysogenic cycle Generalized transductionSpecialised transduction

4 Emaneini M. PhD. Discovered 1946 Lederberg & Tatum Donor: Containing conjugative plasmid (F+) Recipient: Bacterial receiving the plasmid (F-) Conjugation High-frequency recombination (Hfr)

Download ppt "Mohammad Emaneini, PhD Assistant Professor in Microbiology Department of Microbiology School of Medicine Tehran University."

Similar presentations

Genetic Transfer & Recombination In Bacteria

Genetic Transfer & Recombination In Bacteria
Chapter 15 - Genetics of Bacteria and Bacteriophages: Mapping bacteria, 3 different methods: Conjugation Transformation Transduction Bacteriophage mapping:

Chapter 15 - Genetics of Bacteria and Bacteriophages: Mapping bacteria, 3 different methods: Conjugation Transformation Transduction Bacteriophage mapping:
Bacterial Transformation

Bacterial Transformation
Lateral Transfer. Donating Genes Mutation often disrupts the function of a gene Gene transfer is a way to give new functions to the recipient cell Thus,

Lateral Transfer. Donating Genes Mutation often disrupts the function of a gene Gene transfer is a way to give new functions to the recipient cell Thus,
PCR, Viral and Bacterial Genetics

PCR, Viral and Bacterial Genetics
Chapter4 Heredity and variation of bacteria

Chapter4 Heredity and variation of bacteria
Gene Transfer: How New Strains Arise and Biotechnology What special mechanisms allow bacteria to swap genes between cells? Gene Transfer and Recombination.

Gene Transfer: How New Strains Arise and Biotechnology What special mechanisms allow bacteria to swap genes between cells? Gene Transfer and Recombination.
Gene Transfer There are three fundamentally distinct mechanisms (1) Transformation (2) Conjugation (3)Transduction (1) Transformation (2) Conjugation.

Gene Transfer There are three fundamentally distinct mechanisms (1) Transformation (2) Conjugation (3)Transduction (1) Transformation (2) Conjugation.
Chapter 18 Genetics of Viruses and Bacteria. Viruses: are much smaller than bacteria consist of a genome in a protective coat reproduce only within host.

Chapter 18 Genetics of Viruses and Bacteria. Viruses: are much smaller than bacteria consist of a genome in a protective coat reproduce only within host.
Microbial genetics.

Microbial genetics.
Genetics of Bacteria. Bacterial Chromosomes One double-stranded, circular molecule of DNA. Found in nucleoid region, which is a dense region of DNA. Many.

Genetics of Bacteria. Bacterial Chromosomes One double-stranded, circular molecule of DNA. Found in nucleoid region, which is a dense region of DNA. Many.
7 The Genetics of Bacteria and Their Viruses. 2 3 Plasmids Many DNA sequences in bacteria are mobile and can be transferred between individuals and among.

7 The Genetics of Bacteria and Their Viruses. 2 3 Plasmids Many DNA sequences in bacteria are mobile and can be transferred between individuals and among.
Microbial Genetics (Micr340) Lecture 8 Conjugation and Transformation.

Microbial Genetics (Micr340) Lecture 8 Conjugation and Transformation.
Changes in bacterial traits Caused by: Changes in environmental conditions (only phenotypic changes) Changes in the genetic codes 1- Intermicrobial exchange.

Changes in bacterial traits Caused by: Changes in environmental conditions (only phenotypic changes) Changes in the genetic codes 1- Intermicrobial exchange.
Bacterial Physiology (Micr430)

Bacterial Physiology (Micr430)
Bacterial Genetics (Ch18) Bacteria –One of the simplest genetic model systems to study the mechanisms of molecular genetics Escherichia coli (E. coli)

Bacterial Genetics (Ch18) Bacteria –One of the simplest genetic model systems to study the mechanisms of molecular genetics Escherichia coli (E. coli)
Summer 2008 Workshop in Biology and Multimedia for High School Teachers.

Summer 2008 Workshop in Biology and Multimedia for High School Teachers.
Gene Transfer Mechanisms – Conjugation (cont.) Transformation and Transduction.

Gene Transfer Mechanisms – Conjugation (cont.) Transformation and Transduction.
Bacterial Genetics Xiao-Kui GUO PhD.

Bacterial Genetics Xiao-Kui GUO PhD.
Genetic transfer and recombination

Genetic transfer and recombination

Similar presentations

Ads by Google