transduction
[trans-duk´shun] the transfer of a genetic fragment from one microorganism to another by bacteriophage.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
trans·duc·tion
(tranz-dŭk'shŭn), 1. Transfer of genetic material (and its phenotypic expression) from one cell to another by viral infection.
2. A form of genetic recombination in bacteria.
3. Conversion of energy from one form to another.
[trans- + L. duco, pp. ductus, to lead across]
Farlex Partner Medical Dictionary © Farlex 2012
transduction
(trăns-dŭk′shən, trănz-)n.2. The transfer of genetic material from one cell to another, especially a bacterial cell, through the use of a bacteriophage.
trans·duc′tion·al adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
trans·duc·tion
(trans-dŭk'shŭn) 1. Transfer of genetic material (and its phenotypic expression) from one cell to another by viral infection.
2. A form of genetic recombination in bacteria.
3. Conversion of energy from one form to another.
[trans- + L. duco, pp. ductus, to lead across]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
transduction
1. The conversion of energy in one form into energy in another.
2. The transfer of a gene from one bacterial host to another by means of a phage.
3. The transfer of a gene from one cell host to another by a retrovirus.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
transduction
- the transfer of DNA from one bacterium to another, using a VIRUS as a vector. The donor is subjected to LYSIS, the recipient is infected with a transducing phage. See GENERALIZED TRANSDUCTION, SPECIALIZED TRANSDUCTION.
- the process of relaying a signal (e.g. a hormone) to an effector system to stimulate the appropriate cellular response.
- a process involved in conversion of one form of energy (e.g. light) into another (e.g. chemical).
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
transduction
Generally, the conversion of one form of energy into another.
Example: the transformation of light energy into receptor potentials in the photoreceptors of the retina (also called
phototransduction). The absorption of light by the pigments of the photoreceptors triggers a cascade of biochemical events that leads to a change in ionic fluxes across the plasma membrane and to a change in resting potential from around −40 mV in the dark, to around −70 mV in light, that is a hyperpolarization of the cells.
See depolarization;
hyperpolarization;
receptor potential;
visual pigment.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann