Book ChapterDOI
Phototaxis and Photokinesis in Bacteria and Blue-Green Algae
W. Nultsch
- pp 70-81
TLDR
Bacteria and blue-green algae have some features in common: they lack a nucleus and all the cytoplasmic structures and organelles which are typical for eukaryontic cells, such as endoplasmic reticulum, golgi apparatus, and mitochondria.Abstract:
Bacteria and blue-green algae have some features in common: they lack a nucleus and all the cytoplasmic structures and organelles which are typical for eukaryontic cells, such as endoplasmic reticulum, golgi apparatus, and mitochondria. Although they also lack true plastids, in the phototrophic forms, i.e. the families athiorhodaceae, thiorhodaceae, and chlorobacteriaceae and in all blue-green algae the photosynthetic pigments are located in thylakoids, which are not surrounded by a plastid envelope.read more
Citations
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Journal ArticleDOI
Light matters: phototaxis and signal transduction in unicellular cyanobacteria
TL;DR: The discovery that cyclic AMP and novel gene products are necessary for phototaxis/motility suggests that there might be additional levels of communication and signal processing in type IV pilus biogenesis.
Journal ArticleDOI
Photomovement of motile microorganisms
Wilhelm Nultsch,Donat-P. Häder +1 more
TL;DR: Photoreception and photomovement coupled with photosynthesis, and other photoreceptor systems, and the role of internal and external factors.
Book ChapterDOI
The Blue Light Receptor(s): Primary Reactions and Subsequent Metabolic Changes
Horst Senger,Winslow R. Briggs +1 more
TL;DR: The growing awareness of blue-light-induced phenomena in plants and microorganisms is reflected in the increased research activity into an ever-increasing variety of blue light effects in biological systems.
Journal ArticleDOI
Effect of external factors on phototaxis of Chlamydomonas reinhardtii
TL;DR: The effect of CO2 on the inversion intensity of phototaxis is obviously a compostite of a true CO2 effect and an effect of the concomitant pH change.
Journal ArticleDOI
Effects of calcium channel blockers on phototaxis and motility of chlamydomonas reinhardtii
TL;DR: Results point to the involvement of calcium channels in both phototaxis and motility, but simultaneously demonstrate the different sensitivity of the two processes to these drugs.
References
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Journal ArticleDOI
Bacterium photometricum: Ein Beitrag zur vergleichenden Physiologie des Licht- und Farbensinnes
TL;DR: In this article, Bacterium chlorihum was entdecked in the Wasser des am physiologischen Laboratorium vorbeifliessenden Rheinarms eine Bakterienform, in which a volle Aufmerksamkeit fcsselte.
Journal ArticleDOI
Photomotion in Euglena gracilis* I. Photokinesis II. Phototaxis
Jerome J. Wolken,E. Shin +1 more
TL;DR: The polarized light effect may indicate more than one light-absorbing pigment within the “eye spot” or that other pigments within Euglena were absorbing.
Journal ArticleDOI
Studies in the phototaxis of rhodospirillum rubrum
TL;DR: An action spectrum for the phototaxis of Rhodospirillum rubrum was obtained; it was found that the predominant carotenoid pigment of Rh.