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Colesie, C./ S. Scheu/ T. G. A. Green/ B. Weber/ R. Wirth/ B. Büdel 2012: The advantage of growing on moss: Facilitative effects on photosynthetic performance and growth in the cyanobacterial lichen Peltigera rufescens. - Oecologia 169(3): 599-607. [RLL List # 227 / Rec.# 33880]
Keywords: Association/ CO / Ecophysiology/ Ecosystem functioning/ Plant interactions
Abstract: Facilitative effects and plant-plant interactions are well known for higher plants, but there is a lack of information about their relevance in cryptogams. Additional information about facilitative effects between bryophytes and lichens would be an important contribution to recent research on positive plant-plant interactions, as these can have striking influences not only on the organisation of early successional terrestrial communities but also on succession dynamics by kick-starting ecosystem development through the import of key nutrients. We investigated and quantified these mechanisms between Peltigera rufescens and its associated mosses. Moss-associated thalli had a different morphology that led to several benefits from the association. They had 66% higher net photosynthetic rate and, because the majority of the gas exchange of lichen thalli took place through the lower surface, there was a further increase as the CO

URL: http://dx.doi.org/10.1007/s00442-011-2224-5

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