akinete


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akinete

[‚a′kī‚nēt]
(botany)
A thick-walled resting cell of unicellular and filamentous green algae.
References in periodicals archive ?
Some studies have reported reduction in growth rates or increases in akinete numbers when salinity increases above 20-30 PSU (Jones et al.
in this genus ability of gliding motility and lake of heterocysts and akinetes are not formed.
Akinetes are spherical, ellipsoidal, cylindrical, curved, intercalary, solitary or in groups of two to five, in some species adjacent to heterocytes.
2002), the representatives of this group have adaptive advantages over other organisms that occur in environments with low concentrations of nitrogen, as they have the ability to fix atmospheric nitrogen due to specialized cells called akinetes.
Cyanobacteria are morphologically diverse and they consist of unicellular, colonial, pseudofilamentous, pseudoparenchymatous uniseriate, filamentous forms unbranched, undifferentiated, differentiated with specialized cells called heterocyst and akinetes and heterotrichous branched forms [2].
The palaeoecological value of heterocysts and akinetes in cyanobacteria has been reported by van Geel et al.
Fossil akinetes of Aphanizomenon and Anabaena as indicators for medieval phosphate-eutrophication of Lake Gosciaz (Central Poland).
Light and electron microscopic study on the formation, structure and germination of akinetes of Stigeoclonium tenue (Chaetophorales, Chlorophyceae).
Mesoproterozoic Archaeoellipsoides: akinetes of heterocystous cyanobacteria.
1994), cyanobacteria to produce akinetes (Whitton 1987), algae to produce spores, cysts, or gametes that fuse into diapausing zygotes (Fryxell 1983, Blanco 1995, Burkholder and Glasgow 1995), and amoebae and ciliates to encyst (Johnson and Evans 1939, Hashimoto 1962, Neff and Neff 1969, Grimes 1973, Corliss and Esser 1974, Walker et al.
Disturbance of a waterbody may cause the stock of akinetes to germinate, starting a bloom of a very different genetic content than one deriving from a few existing cells drifting in from a population nearby.