Zur Morphologie und Systematik desTrebouxia-Phycobionten im Thallus vonUsnea longissima (Lecanorales) |
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| Authors: | Georg Gärtner Elisabeth Ingolić |
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| Affiliation: | (1) Institut für Botanik, Universität Innsbruck, A-6020 Innsbruck, Austria;(2) Forschungsinstitut für Elektronenmikroskopie und Feinstrukturforschung, A-8010 Graz, Austria |
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| Abstract: | In the lichen genusUsnea different species ofTrebouxia-phycobionts as well as different haustorial types are known. The isolated and cultivated phycobiont ofUsnea longissimaAch. was studied by light- and electron microscopy and resembles in cytomorphological details the type ofTrebouxia impressaAhmad. In addition to simple wall-to-wall contacts between the symbiotic components also intraparietal (=intrawall-)haustoria could be observed as the normal interaction type.Frau Prof. Dr.Elisabeth Tschermak-Woess zu ihrem 70. Geburtstag gewidmet. |
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| Keywords: | Lichens Lecanorales Usnea longissima Chlorellales Trebouxia Morphology ultrastructure haustoria phycobionts systematics |
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