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Accumulation of Iron on the Cell Walls of the Two Monospecific
Freshwater Genera Catena and Dichotomosiphon (Chlorophyceae).
Nicholls, K H | Fung, D
Archiv fuer Protistenkunde. Vol. 125, no. 1-4, pp. 209-214. 1982
Massive accumulations of an iron compound, probably ferric
hydroxide, are shown to occur by x-ray dispersive spectrometry in
two chlorophycean algae, Catena viridis Chodat and Dichotomosiphon
tuberosus (A. BR.) Ernst. Iron is deposited externally in the form
of dense rings at both ends of the cells of C. viridis and as
nodules and broad sheaths in D. tuberosus . Internal deposition
also occurs next to the cell wall in D. tuberosus mainly at
constriction points in both the vegetative and rhizoidal portions
of the thallus. It is suggested that when high biomss of these
algae (especially D. tuberosus ) occurs in lakes, their influence
on the iron cycle would be significant.
 Descriptors: Iron | Algae | Walls | Deposition | Nodules | Iron and steel industry | Arches | Constrictions | Hydroxides | Rings | Freshwaters | Iron
compounds | Sheaths | Lakes | Spectroscopy
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