The flagellar development cycle of the uniflagellate Pelagomonas calceolata (Pelagophyceae)

Heimann, Kirsten, Andersen, Robert A., and Wetherbee, Richard (1995) The flagellar development cycle of the uniflagellate Pelagomonas calceolata (Pelagophyceae). Journal of Phycology, 31. pp. 577-583.

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Abstract

Vegetative cells of Pelagomonas calceolata Andersen & Saunders were confirmed to possess a reduced flagellar apparatus, consisting of a single basal body/flagellum that is not accompanied by either flagellar roots or a barren basal body. Just prior to division, the parental flagellum retracts (or is abscised) as two new basal bodies/flagella arise de novo. During cytokinesis the parental basal body segregates with a new basal body/flagellum, briefly producing a progeny cell typical of other known uniflagellates (i.e. containing a basal body/flagellum and accompanying barren basal body). The parental basal body then disintegrates or ''transforms'' out of existence, leaving both progeny cells with a single basal body/flagellum (i, e, neither progeny cell possesses any vestige of a mature flagellum/basal body). Pelagomonas calceolata belongs to a lineage of chromophyte algae characterized by having a reduced flagellar apparatus, but it is the only known species, not only in this lineage but among all eukaryotes, to have undergone the complete elimination of the mature flagellum/basal body.

Item ID: 1937
Item Type: Article (Refereed Research - C1)
Keywords: basal bodies, chromophyte, flagellar apparatus, flagellar development, flagellar transformation, Pelagomonas calceolata, Pelagophyceae
ISSN: 1529-8817
Date Deposited: 30 Jul 2008
FoR Codes: 06 BIOLOGICAL SCIENCES > 0601 Biochemistry and Cell Biology @ 0%
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