Please use this identifier to cite or link to this item: https://hdl.handle.net/10593/10590
Title: Odmiany polimorficzne węglanu wapnia na powierzchni plech Ulva (Chlorophyta) notowanych w wodach słodkich
Authors: Messyasz, Beata
Pikosz, Marta
Rybak, Andrzej
Keywords: Ulva
węglan wapnia
kryształy
kalcyt
aragonit
Enteromorpha
freshwater Ulva
freshwater Enteromorpha
plecha
Issue Date: 2014
Citation: Kosmos 63(1),2014, pp. 117-124.
Abstract: Process of calcification, which is the formation of calcite — a pure calcium carbonate mineral, commonly takes place among both marine and freshwater algae. The available literature referring to inland waters provides a lot of information about calcareous macroalgae, mainly on extensively encrusted species of Chara, called stoneworts. In addition to this group, where CaCO3 may provide 60% of dry weight, also freshwater green alga Ulva is prone to CaCO3 precipitation (up to 50% of dry weight).Freshwater Ulva exhibit an extracellular calcification mode and the deposits form bands on the surface of a thallus. Owing to a large number of calcite crystals the surface is quite coarse. Microscopic observations demonstrated differences in the size and shape of crystals and divided them into two morphology types of CaCO3 microcrystals: calcite rhombohedrons and aragonite needles. The percentage of CaCO3 in the thalli was about 50% of dry weight.
URI: http://hdl.handle.net/10593/10590
Appears in Collections:Artykuły naukowe (WB)

Files in This Item:
File Description SizeFormat 
Messyasz et al. 2014_K.pdf1.15 MBAdobe PDFView/Open
Show full item record



Items in AMUR are protected by copyright, with all rights reserved, unless otherwise indicated.