Az Eszterházy Károly Tanárképző Főiskola Tudományos Közleményei. 2004. Sectio Biologiae. (Acta Academiae Paedagogicae Agriensis : Nova series ; Tom. 25)

Marschall, M. and Proctor M. C. F.: Aspects of stress tolerance in bryophytes

Aspects of Stress Tolerance in Bryophytes 125 Figure 8: PPFD response curves of relative electron flow (REFR), NPQ and 1—qP, from chlorophyll-fluorescence measurements for two contrasting species in various gas mixtures Plagiomnium undulatum, 2-3-00 N, + 1% CO 500 1000 1500 PPFD (iimol <. ') Schistidium apocarpum, 10-3-00 <v o •O Nj + 1%00, • • Ambient air A CO, Free air O N, O N

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1%C0, • Ambienl aif A CO,-iree air O N, 200 -»00 600 300 PPFD 0>mol m* $ ') O N, » 1% CO, A C0

2-free air O N, . o~ o - <5 ° Acknowledgements M. M. is grateful to the Hungarian postdoctoral (Békésy György) fellowship (No: 180/2001) for financial support and also acknowledge the support of the South African-Hungarian Science and Technology Programme (DAK-8/01). .. A A O-O O- O o —! 1 1 r—

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