Next Article in Journal
Design and Analysis of Impedance Pumps Utilizing Electromagnetic Actuation
Next Article in Special Issue
Responsive Hydrogels for Label-Free Signal Transduction within Biosensors
Previous Article in Journal
In Situ Roughness Measurements for the Solar Cell Industry Using an Atomic Force Microscope
Previous Article in Special Issue
Greatly Improved Small Inductance Measurement Using Quartz Crystal Parasitic Capacitance Compensation
Sensors 2010, 10(4), 4010-4039; doi:10.3390/s100404010
Review

Phototactic and Chemotactic Signal Transduction by Transmembrane Receptors and Transducers in Microorganisms

1
, 1
, 1
, 2,3
 and 1,4,*
Received: 28 January 2010; in revised form: 29 March 2010 / Accepted: 9 April 2010 / Published: 20 April 2010
(This article belongs to the Special Issue Advances in Transducers)
View Full-Text   |   Download PDF [732 KB, uploaded 21 June 2014]   |   Browse Figures
Abstract: Microorganisms show attractant and repellent responses to survive in the various environments in which they live. Those phototaxic (to light) and chemotaxic (to chemicals) responses are regulated by membrane-embedded receptors and transducers. This article reviews the following: (1) the signal relay mechanisms by two photoreceptors, Sensory Rhodopsin I (SRI) and Sensory Rhodopsin II (SRII) and their transducers (HtrI and HtrII) responsible for phototaxis in microorganisms; and (2) the signal relay mechanism of a chemoreceptor/transducer protein, Tar, responsible for chemotaxis in E. coli. Based on results mainly obtained by our group together with other findings, the possible molecular mechanisms for phototaxis and chemotaxis are discussed.
Keywords: phototaxis; chemotaxis; transducer; signal transduction; rhodopsin phototaxis; chemotaxis; transducer; signal transduction; rhodopsin
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Suzuki, D.; Irieda, H.; Homma, M.; Kawagishi, I.; Sudo, Y. Phototactic and Chemotactic Signal Transduction by Transmembrane Receptors and Transducers in Microorganisms. Sensors 2010, 10, 4010-4039.

AMA Style

Suzuki D, Irieda H, Homma M, Kawagishi I, Sudo Y. Phototactic and Chemotactic Signal Transduction by Transmembrane Receptors and Transducers in Microorganisms. Sensors. 2010; 10(4):4010-4039.

Chicago/Turabian Style

Suzuki, Daisuke; Irieda, Hiroki; Homma, Michio; Kawagishi, Ikuro; Sudo, Yuki. 2010. "Phototactic and Chemotactic Signal Transduction by Transmembrane Receptors and Transducers in Microorganisms." Sensors 10, no. 4: 4010-4039.


Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert