PHOTOMOVEMENT IN MOTILE MICROORGANISMS—II

@article{Nultsch1988PHOTOMOVEMENTIM,
  title={PHOTOMOVEMENT IN MOTILE MICROORGANISMS—II},
  author={Wilhelm Nultsch and Donat-P. H{\"a}der},
  journal={Photochemistry and Photobiology},
  year={1988},
  volume={47}
}
In our previous review (Nultsch and Hader, 1979) wc had covered the relevant papers on photomovement which had appeared up to that time. The present review covers the recent work starting from 1979 and only occasionally refers to older literature. Since thBt time a number of other reviews have been published on several aspects of photomovement in microorganisms (Hader, 1980; Feinleib. 1980; Foster and Smyth, 1980; Nultsch, 1980a,b. 1984, 1985a; Nultsch and Hader, 1980; Colombetti and Lenci… 

Topics from this paper

Phototaxis and Gravitaxis in Euglena gracilis
Like many other motile microorganisms, the photosynthetic unicellular flagellate, Euglena gracilis, orients in its habitat using a number of external chemical and physical parameters (Hader, 1988;
PHOTOSENSORY ADAPTATION IN ANEURAL ORGANISMS *
TLDR
This review attempts to summarize the rather limited literature on photosensory adaptation that is accessible to date and discusses some more distance aspects of adaptation.
Strategy of Orientation in Flagellates
Motile microorganisms use external physical and chemical parameters to orient in their environment and to optimize their position in space (Hader,1988; Nultsch and Hader,1988). In addition to gravity
Electrophysiology of Photomovements in Flagellated Algae
TLDR
The traditional classification of photomovements has long been based on the behavioral principles but for the analysis of a sensory transduction mechanism of the photo-induced responses it seems more useful to differentiate them on the basis of the probable nature of their photoreceptors and primary photobiological events in a cell.
Photoorientation in the freshwater dinoflagellate, Peridinium gatunense Nygaard
TLDR
The results suggest that the photsynthetic mechanism is not involved in photoperception of phototactically active radiation and the ecological significance of photoorientation of the cells is discussed in this paper.
Adaptation of Chlamydomonas phototaxis: I. A light‐scattering apparatus for measuring the phototactic rate of microorganisms with high time resolution
TLDR
Design and performance of the taxigraph are described in detail and results obtained from Chlamydomonas cell populations are compared with those obtained from single-cell analysis by using a computer-aided motion analysis system.
Do phototactic ciliates make use of directional antennas to track the direction of light
TLDR
Bleached cells with a reduced number of pigment granules, transparent cells without a stigma, and cells that lacked a watchglass organelle due to micromanipulation were found to be little sensitive to light, or showed inaccurate or no phototactic orientation.
Life cycle dependent phototactic orientation in Ophryoglena catenula.
  • H. Kuhlmann
  • Biology, Medicine
    European journal of protistology
  • 1993
TLDR
The histophagous ciliate Ophryoglena catenula, which is characterized by a conspicuous "watchglass organelle", shows a pronounced orientation with respect to the direction of light, which has significance for orientation in the natural environment of these ciliates.
Photomovement in Euglena.
  • D. Häder, M. Iseki
  • Chemistry, Medicine
    Advances in experimental medicine and biology
  • 2017
TLDR
It is shown that the photoreceptor in Euglena is a 400 kDa photoactivated adenylyl cyclase (PAC) which consists of two α- and two β-subunits each which possesses two BLUF (Blue Light receptor Using FAD) domains binding FAD, which harvest the light energy, and two adenyll cyclases, which produce cAMP from ATP.
Photomovements in Ciliated Protozoa
TLDR
Several lines of evidence suggest that conspicuous cell organelles such as subpellicular pigment granules, a colored stigma, a watchglass organelle, or a compound crystalline organelle are prerequisites for phototactic orientation of the cells.
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