“…Peroxisomes are subcellular organelles bound by a single membrane with an essentially oxidative metabolism (del Río et al ., 2002a(del Río et al ., ,b, 2003. These organelles with their intricate ROS-machinery and antioxidants, including GR, have been demonstrated to be involved in leaf senescence Jiménez et al ., 1998) and in the response to several abiotic stresses (Romero-Puertas et al ., 1999;McCarthy et al ., 2001a,b;del Río et al ., 2002bdel Río et al ., , 2003Mittova et al ., 2003Mittova et al ., , 2004. In this work, the purification of peroxisomal GR was carried out for the first time and some of its molecular properties are reported.…”