Hallbom, L/ Bergman, B 1979: Influence of certain herbicides and a forest fertilizer on nitrogen fixation by the lichen Peltigera praetextata. - Oecologia [Berlin]40: 19-27. [RLL List # 104-40 / Rec.# 7536] Keywords: NITROGEN FIXATION/ NOSTOC/ HERBICIDES/ FERTILIZER/ NITROGENASE/ MYCOBIONT/ PHYCOBIONT
Abstract: 3 figures. 2 tables. [The isolated phycobiont (Nostoc) is negatively effected by herbicide and fertilizer; however, in the lichenized state there is no apparent effect by herbicide on nitrogen fixation. Treatment of intact lichens with fertilizer (NH4NO3) "...led to depression of nitrogenase activity and serious disturbance of the symbiosis, the latter effect due to the fertilizer's lethal effects on the mycobiont (electron microscopy)."]
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