Comparative Study of the Lipids of Four Dominating Species of Freshwater Plants and Algae of the Shulgan River

O. A. Rozentsvet^1*, V. G. Kozlov¹, and V. M. Dembitsky²

¹Institute of Ecology of the Volga River Basin, Russian Academy of Sciences, ul. Komzina 10, Togliatti, 445003 Russia; fax: (8469) 48-9405

²Division of Environmental Sciences, Graduate School of Applied Sciences and Technology, Hebrew University of Jerusalem, Jerusalem, 91904 Israel

^* To whom correspondence should be addressed.

Received December 25, 1998; Revision received June 29, 1999

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The fatty acid and lipid compositions of four dominating species of plants and algae of the Shulgan river--Alliaria petiolata, Rhynchostegium riparioides, Sphaeroplea annulina, and Rhizoclonium hieroglyphicum--were studied. The composition of phospho-, glyco-, and neutral lipids was investigated. A betaine lipid 1(3),2-diacylglyceryl-(3)-O-4-(N,N,N-trimethyl)homoserine was detected in the polar lipid fraction of the Rhynchostegium riparioides bryophyte. Characteristic distribution of lipids and fatty acids of freshwater plants and algae is discussed in term of various species specificity.

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KEY WORDS: Alliaria petiolata, Rhynchostegium riparioides, Sphaeroplea annulina, Rhizoclonium hieroglyphicum, lipids, neutral lipids, glycolipids, phospholipids, fatty acids

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