Algae exhibit the greatest variety of cell motility phenomena in
the living world. These range from the peculiar gliding motility of
filamentous blue green algae or cyanobacteria to chloroplast
movements and cytoplasmic streaming which are most common in higher
plants. In addition, cell motility by eukaryotic flagella is the
characteristic mode of cell locomotion in algal flagellates and
most reproductive cells of algae. Algae use these cell motility
systems mainly to orient themselves or their photosynthetic
organelles in a suitable light gradient to optimize growth and
reproduction. In consequence most of the motility systems are
coupled to photoreceptors and are regulated by signal transduction
cascades. Algal cell motility has thus attracted consid erable
interest also from non-phycologists and some algal motility systems
have become models of research in cell and molecular biology. This
book summarizes some of the progress that has been made in recent
years in the analysis of cell motility phenomena in the algae.
Although complete coverage of the subject was not attempted, the
six chapters cover all the major types of cell motility systems and
the authors provide in depth reviews of gliding motility,
chloroplast movements, cytoplasmic streaming, flagellar beat pat
terns, mechanisms of flagellar movement and centrin-mediated cell
motility."
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