Photosystems and photoreceptors in cyanobacterial phototaxis and photophobotaxis.
FEBS Lett
; 598(15): 1899-1908, 2024 Aug.
Article
in En
| MEDLINE
| ID: mdl-38946046
ABSTRACT
Cyanobacteria move by gliding motility on surfaces toward the light or away from it. It is as yet unclear how the light direction is sensed on the molecular level. Diverse photoreceptor knockout mutants have a stronger response toward the light than the wild type. Either the light direction is sensed by multiple photoreceptors or by photosystems. In a study on photophobotaxis of the filamentous cyanobacterium Phormidium lacuna, broad spectral sensitivity, inhibition by 3-(3,4-dichlorophenyl)-1,1-dimethylurea (DCMU), and a highly sensitive response speaks for photosystems as light direction sensors. Here, it is discussed whether the photosystem theory could hold for phototaxis of other cyanobacteria.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cyanobacteria
/
Photoreceptors, Microbial
/
Phototaxis
Language:
En
Journal:
FEBS Lett
Year:
2024
Document type:
Article
Affiliation country: