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Early development of Hypogymnia physodes (L.) Nyl. in response to emissions from a copper smelter

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The early development of Hypogymnia physodes from soredia to the formation of stratified lobes has been studied experimentally in the vicinity of a copper-smelting plant in the Middle Urals. SEM investigations combined with life table analyses of early developmental stages revealed decreases in soredial survival and developmental rate in polluted localities. Non-stratified pre-thallus stages without an epicortex were tolerant to toxic impact and were able to survive even in the zone with the highest pollution (lichen desert zone). The sensitivity of developmental stages increased after stratified lobes had developed.

Document Type: Research Article

Affiliations: 1: Institute of Plant and Animal Ecology UD RAS, 8 Marta Str., 202, Ekaterinburg, 620144, Russia 2: WSL Swiss Federal Research Institute, Birmensdorf, CH-8903, Switzerland

Publication date: November 1, 2001

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