<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Orús, M Isabel</style></author><author><style face="normal" font="default" size="100%">Estévez, M Filar</style></author><author><style face="normal" font="default" size="100%">Vicente, Carlos</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Manganese depletion in chloroplasts of Quercus rotundifolia during chemical simulation of lichen epiphytic states</style></title><secondary-title><style face="normal" font="default" size="100%">Physiologia Plantarum</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Evernla prunaslri</style></keyword><keyword><style  face="normal" font="default" size="100%">lichen acids</style></keyword><keyword><style  face="normal" font="default" size="100%">manganese chelation</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus roiundifolia</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1981</style></year></dates><publisher><style face="normal" font="default" size="100%">Blackwell Publishing Ltd</style></publisher><volume><style face="normal" font="default" size="100%">52</style></volume><pages><style face="normal" font="default" size="100%">263-266</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Incubation of Quercus rotundifolia branches in culture media containing lichen substances isolated from Evernia prunastri thallus produces inhibition of Hill reaction in chloroptasts isolated from the leaves of the branches. Incubation with lichen substances diminishes the amount of chloroplastic manganese through a chelation process. This decrease causes the loss of photosynthetic activity because the Hill reaction is restored upon addition of exogenous manganese to the chloropiasts.</style></abstract></record></records></xml>