ABA Arabidopsis Arabidopsis thaliana mutant H2O2 PA acetylation PA back-conversion PA oxidation ROS Ranunculus biternatus Ranunculus moseleyi Ranunculus pseudotrullifolius Selaginella lepidophylla abiotic and biotic stress amines antioxidant machinery back conversion pathway bic Book Industry Communication::G Reference, information & interdisciplinary subjects::GP Research & information: general bic Book Industry Communication::P Mathematics & science::PS Biology, life sciences cell division cell expansion copper amine oxidase copper amine oxidases environment fruit shape heat shock proteins heat stress hydrogen peroxide natural populations nitrogen metabolism no-go decay