Henriksson, E/ Pearson, LC 1981: Nitrogen fixation rate and chlorophyll content of the lichen Peltigera canina exposed to sulfur dioxide. - American Journal of Botany68: 680-684. [RLL List # 111-35 / Rec.# 8263] Keywords: PELTIGERA/ NITROGEN FIXATION/ SO2/ AIR POLLUTION/ PHYCOBIONT/ CHLOROPHYLL
Abstract: 3 tables. 1 figure. ["This study has demonstrated that gaseous sulfur dioxide inhibits activities of vital importance to the phycobiont of Peltigera canina. Such inhibition likely interferes with the balance between the algal and fungal partners of the lichen and may be one reason why lichens, as compared to other plants, are especially sensitive to air pollution."]