Groenbladia

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Groenbladia
Scientific classification Edit this classification
Kingdom: Plantae
Class: Zygnematophyceae
Order: Desmidiales
Family: Desmidiaceae
Genus: Groenbladia
Teiling
Type species
Groenbladia neglecta
(Raciborski) Teiling[1]
Species

Groenbladia is a genus of green algae, specifically of the Desmidiaceae.[2] It has a cosmopolitan distribution in acidic, oligotrophic freshwater habitats;[1] it may occasionally form blooms.[3]

The genus name of Groenbladia is in honour of Rolf Leo Grönblad (1895-1962), who was a Finnish dentist and botanist (Algology), who worked in Finland.[4]

The genus was circumscribed by Einar Johan Sigurd Teiling in Bot. Not. (1952) on page 275 in 1952.

Description

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Groenbladia forms long or short filaments of cells, which are often surrounded by a gelatinous sheath. Cells are elongate, cylindrical (sometimes narrowing towards the ends), and are up to nine times longer than broad; there may be a slight constriction at the middle of the cell (isthmus). On each side of the isthmus, there is a transverse row of pores. Each cell has two chloroplasts, which are axial, band-shaped, with one to eight pyrenoids.[1]

Aplanospores have been reported in one species, G. neglecta; the aplanospores are yellowish and elliptical. Sexual reproduction occurs by conjugation. During conjugation, cells (i.e. gametangia) become geniculate and produce a broad tube in which the gametes fuse. Mature zygospores are quadrangular, surrounded by the conjugation tube and gametangial cell walls.[1]

Species are distinguished based on the shape of the cells.[3]

References

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  1. ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  2. ^ See the NCBI webpage on Groenbladia. Data extracted from the Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  3. ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  4. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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