Pavlova granifera


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

Taxonomy:

Citation: Pavlova granifera (Mack 1954) Green 1973
Rank: Species
Basionym: Chrysocapsa granifera Mack 1954

Catalog entries: Chrysocapsa granifera

Original description: Diagnose: Celtulae rotundatae -- pyriformae -- reniformae, circiter 6 µm latae, 8 µm longae, in statu gloeocystoideo viventes. Chromatophoro uno parietali cum stigmate, vacuolis contractilibus 1-2. In cytoplasmate 2 grana magna ellipsoidea lucem vehementer frangentia. Cellulae mobiles +/- rotundatae, apice cure depressione. Flagella bina inaequalia: flagello generali 1½-2 protoplasti longitudine, flagello altero cellutae circiter aequilongo. - Neusiedlersee, auf Myriophyllum spicatum bei der Biologischen Station Neusiedl.

Type images:


Morphology: Motile cells are strongly metabolic and possess a brown plastid with a red-orange eyespot located near the flagellar insertion. The naked posterior flagellum is rigid , the anterior flagellum is flexible and covered by hairs and knob scales , and an emergent haptonema is present between the flagella. Sections of whole cells demonstrate the high degree of plasticity of cell shape, from compressed to long. There is also variability in nuclear shape. A pulsate vacuole is present at the centre of the cell, showing a relation with the flagellar pit. The plastid has parallel thylakoid lamellae, a bulging pyrenoid and an eyespot on the inner face, adjacent to a less osmiophilic zone connected with the flagellar pit. [Bendif et al. 2011]

Geological Range:
Last occurrence (top): Extant Data source:
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" 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. (1973). Studies in the fine structure and taxonomy of flagellates in the genus Pavlova. II. A freshwater representative, Pavlova granifera (Mack) comb. nov. British Phycological Journal. 8: 1-12. gs

Mack, B. (1954). Untersuchungen an Chrysophyceen. V-VII. Osterreichische Botanische Zeitschrift. 101: 64-73. gs


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Pavlova granifera compiled by Jeremy R. Young viewed: 15-5-2021

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