The enzyme is composed of two subunits in green plants (including Chlorophyceae, Marchantimorpha, Bryopsida, Pinaceae, monocotyledons, and eudicots), species of fungi, Glaucophytes, Chlamydomonas, and prokaryotes.
In Chlamydomonas, the eyespot is part of the chloroplast and takes on the appearance of a membranous sandwich structure.
Franz Moewus (died May 30, 1959) was a German biologist who studied the algae Chlamydomonas, one species of which is named for him (Chlamydomonas moewusii).
Working with David Miller, he began to study Chlamydomonas and found that a significant amount of the cell wall consisted of extensin.
The role of karyogamy in sexual reproduction can be demonstrated most simply by single-celled haploid organisms such as the algae of genus Chlamydomonas or the yeast Saccharomyces cerevisiae.
From 1951 to 1955 was a staff member at the Rockefeller Institute of Medical Research, using the alga Chlamydomonas reinhardi as a model organism.
Chlamydomonas | Schematic representation of a ''Chlamydomonas | Longitudinal section through the flagella area in ''Chlamydomonas reinhardtii | Chlamydomonas reinhardtii |