NEW TAXONOMIC CRITERIA IN CLASSIFICATION OF CHLOROCOCCUM SPECIES. II. PYRENOID FINE STRUCTURE2
- 1 June 1969
- journal article
- Published by Wiley in Journal of Phycology
- Vol. 5 (2) , 114-118
- https://doi.org/10.1111/j.1529-8817.1969.tb02588.x
Abstract
The pyrenoids of 18 Chlorococcum species (including 3 now transferred to Tetracystis) have been investigated at the ultrastructural level. Three categories of pyrenoids were observed, including pyrenoids with unfragmented perforate starch plates in 11 species; those with many separate fragmented starch plates in 6 species; and those with hemispherical starch plates in 1 species. Pyrenoids were further distinguishable on the basis of the number of thylakoid disks or tubules which penetrate the ground substance. Stability and diversity of pyrenoid fine structure as a taxonomic criterion at the specific level have been demonstrated.Keywords
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