Lange, OL/ Büdel, B/ Meyer, A/ Kilian, E 1993: Further evidence that activation of net photosynthesis by dry cyanobacterial lichens requires liquid water. - Lichenologist25(2): 175-189. [RLL List # 152 / Rec.# 11007] Keywords: CYANOBACTERIA/ PHOTOSYNTHESIS/ WATER RELATIONS
Abstract: 5 fig. 1 tab. ["In contrast to green algal lichens, cyanobacterial species of different families, growth forms and habitats proved to be unable to attain positive net CO2 assimilation when the dry thalli were treated with air of high relative humidity; they needed liquid water for the reactivation of their photosynthetic apparatus. Identical behaviour is shown by all of the 47 lichen species with cyanobacterial photobionts, from six different genera, studied so far."]