Gardner, CR/ Mueller, DMJ 1981: Factors affecting the toxicity of several lichen acids: effect of pH and lichen acid concentration. - American Journal of Botany68: 87-95. [RLL List # 109-23 / Rec.# 6409] Keywords: ALLELOPATHY/ CHEMISTRY/ FUNARIA/ GERMINATION/ SPORES/ PH/ BRYOPHYTES
Abstract: 6 figures. 4 tables. [Studies on 8 lichen acids on the germination and sporeling growth of Funaria hygrometrica. "The order of relative toxicity for lichen acids is different, depending on the pH and concentration at which they are tested and depending on the parameter measured. Thus, in an ecological sense, it is difficult to evaluate the adaptive signficance of a particular compound or group of compounds without knowing what factors influence toxicity of those compounds and how these factors vary in the organism's habitat."]