J. Bud'ová, M. Bačkor, M. Bačkorová and J. Židzik 2006: Usnic acid and copper toxicity in aposymbiotically grown lichen photobiont Trebouxia erici. - Symbiosis42: 169-174. [RLL List # 215 / Rec.# 30593] Keywords: TREBOUXIA/ PHOTOBIONTS/ COPPER TOXICITY/ CULTURE/ USNIC ACID/ CHLOROPHYLL A FLUORESCENCE/ ASSIMILATION PIGMENTS/ GROWTH INHIBITION/ HEAVY METALS/ VIABILITY
Abstract: ["Although usnic acid and increased copper were not synergistic, usnic acid did not significantly protect photobionts from negative physiological effects of copper."]