“…The AR has been observed in bacteria (Assis et al, 2002;Sedgwick & Lindahl, 2002;Rohankhedkar et al, 2006), yeast (Boreham & Mitchel, 1991;Gajendiran & Jeevanram, 2002), algae (Chankova & Bryant, 2001;Rubinelli et al, 2002;Chankova et al, 2007), insect cells (Savina et al, 2003), mammalian cells (Wang & Cai, 2000;Tiku & Kale, 2001;Ulsh et al, 2004;Zhou et al, 2004), human cells (Schlade-Bartusiak et al, 2002;Atanasova et al, 2005;Coleman et al, 2005;Friesner et al, 2005;Lanza et al, 2005;Seo et al, 2006) and higher plants models (Rieger et al, 1993;Panda et al, 1997;Jovtchev & Stergios, 2003;Patra et al, 2003). A study of the conditions essential for the induction of an adaptive response is of critical importance to understanding the novel biological defense mechanisms against the hazardous effects of radiation.…”