Pavlova pinguis


Classification: non_cocco -> Haptophytes -> Pavlovales -> Pavlovaceae -> Pavlova -> Pavlova pinguis
Sister taxa: P. calceolata, P. granifera, P. gyrans, P. pinguis, P. sp.,

Taxonomy:

Citation: Pavlova pinguis Green 1967; emend. Green 1980
Rank: Species
Basionym: Pavlova pinguis Green 1967; emend. Green 1980

Catalog entries: Pavlova pinguis

Original description: Cells 3-4 (5) µm × 5-8 µm, ovate, base obtuse, slightly metabolic, not compressed. Longer flagellum 1½-2 times the body length, the shorter ¼-⅓ the length of the longer. Haptothrix (attaching organ) contractile, very fine, rarely more than body length when fully extended. Chromatophores two, large, lateral, yellow-green; stigma red, position variable, lateral to sub-apical. Bright refractive bodies of unknown nature, usually 2-3, present at the posterior end.

Type images:


Morphology remarks: This species has strongly metabolic motile cells with many filipodia and with a green-yellow parietal plastid. The three appendages are present: the posterior flagellum is naked whereas the anterior flagellum possesses hairs and knob scales , with the haptonema inserted between them. Knob scales were not observed on the cell body. A red eyespot is located near the flagellar insertion on the inner face of the plastid. Like P. gyrans, the plastid has parallel thylakoid lamellae. A bulging pyrenoid is also present. [Bendif et al. 2011]

Cultures: strains of this species are maintained in culture, for details see Roscoff culture collection.

Geological Range:
Last occurrence (top): Extant Data source:
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in stage). Data source:

References:

Bendif, E. M. et al. (2011). Integrative taxonomy of the Pavlovophyceae (Haptophyta): A reassessment. Protist. 162: 738-761. gs :: ::

Green, J. C. (1967). A new species of Pavlova from Madeira. British Phycological Bulletin. 3: 299-303. gs :: ::

Green, J. C. (1980). The fine structure of Pavlova pinguis Green and a preliminary survey of the order Pavlovales (Prymnesiophyceae). British Phycological Journal. 15: 151-191. gs :: ::


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Pavlova pinguis compiled by Jeremy R. Young viewed: 4-6-2020

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