The Effects of Temperature and Moisture on CO2Uptake and Total Resistance to Water Loss in the Antarctic Foliose Lichen Umbilicaria antarctica

Maximum net photosynthesis of field-fresh thalli, illuminated at 200 μmol photons m-2s-1(PAR), was attained at 13⚬C and 1.10 g g-1water content. Small but significant rates of photosynthesis were measured at -5.5⚬C. Depression of net photosynthesis at high thallus water contents is explained in term...

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Veröffentlicht in:	The New phytologist 1989-04, Vol.111 (4), p.673-682
Hauptverfasser:	Harrisson, P. M., Walton, D. W. H., Rothery, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antarctic regions Carbon dioxide Chlorophylls Lichens Moisture content Photosynthesis Respiration Thallus Water loss Water temperature
Online-Zugang:	Volltext
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