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Photosystems and photoreceptors in cyanobacterial phototaxis and photophobotaxis.
Lamparter, Tilman.
Affiliation
  • Lamparter T; Karlsruhe Institute of Technology KIT, Joseph Gottlieb Kölreuter Institut für Pflanzenwissenschaften, Karlsruhe, Germany.
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.
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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:

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: