Prymnesium
Template:Short description Template:Automatic taxobox
Prymnesium is a genus of haptophytes, including the species Prymnesium parvum.[1] The genus is a unicellular motile alga. It is ellipsoidal in shape one flagellum is straight and there are two longer ones which enable movement.[2]
The name Latinizes the Greek Script error: No such module "lang". ‘cable (for mooring)’,[3][4] from Script error: No such module "lang". ‘stern’, from Script error: No such module "lang". ‘hindmost’.[5]Script error: No such module "Unsubst".
Prymnesium was likely first recognized and drawn (although not named as such) on July 1, 1920,[6] and then (seemingly independently) officially named shortly afterwards on July 6, 1920.[7]
Morphology
a) Transversal section showing the f1,f2: flagella, h: haptonema, c: chloroplast, sc: surface of the cell covered with scales.
b) Longitudinal section showing: c: (complex) chloroplasts, cer: chloroplasts endoplasmic reticulum, vf: vestibular fossa/cavity, per: periplastidial endoplasmatic reticulum, n: nucleus, nu: nucleolus, ner: nuclear endoplasmic reticulum, m: mitochondria, p: pyrenoids, g: Golgi body, mb: muciferous body (extrusome, pv: pulsatile/contractile vacuole, sc: scales.
c) r: radial and c: concentrical scales.[8]
a) sc: scale forming in the g: Golgi body, er: endoplasmic reticulum.< />b) g: Golgi body just below the fr: flagellar root, m: mitochondrion, n: nucleous, mb: muciferous body, cytoplasm surrounded by a narrow peripheral cisterna of per: endoplasmic reticulum.
c) Transversal section showing peripheral cisterna of per: endoplasmic reticulum, n: nucleus, nu: nucleolus, m: mitochondrion, l: lipidic globules, mb: muciferous body, and sc: scales.
d) Transversal section showing cer: chloroplast endoplasmic reticulum is continuous with the nucleus endoplasmic reticulum. c: chloroplast, g: Golgi body, f: flagella, p: pyrenoids, n: nucleus, pv: pulsatil vacuole, mb: muciferous body, and sc: scales.[8]
Species
The taxonomy of Prymnesiales was revised in 2011. With this revision, ten additional species were added to the genus, namely P. neolepis (previously assigned to Hyalolithus), P. palpebrale, P. polylepis, P. kappa, P. chiton, P. minus (previously assigned to Chrysochromulina), P. neustophilum, P. pienaarii, P. pigrum, and P. simplex (previously assigned to Platychrysis).[9]
- Prymnesium neolepis Template:Au (=Hyalolithus neolepis)
- Prymnesium palpebrale Template:Au (=Chrysochromulina palpebralis)
- Prymnesium polylepis Template:Au (=Chrysochromulina polylepis)
- Prymnesium kappa Template:Au (=Chrysochromulina kappa)
- Prymnesium chiton Template:Au (=Chrysochromulina chiton)
- Prymnesium minus Template:Au (=Chrysochromulina minor)
- Prymnesium neustophilum Template:Au (=Platychrysis neustophila)
- Prymnesium pienaarii Template:Au (=Platychrysis pienaarii)
- Prymnesium pigrum Template:Au (=Platychrysis pigra)
- Prymnesium simplex Template:Au (=Platychrysis simplex)
References
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- ↑ Fritsch, F.E. 1965. The Structure and Reproduction of the Algae. Volume 1.Cambridge University Press.
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- ↑ a b Script error: No such module "Citation/CS1".
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