Effects of salicylic acid and cold treatments on protein levels and on the activities of antioxidant enzymes in the apoplast of winter wheat leaves

Exogenous salicylic acid alleviates cold damage by regulating antioxidative system in two barley (Hordeum vulgareL.) cultivars

“…Our results show that the exogenous SA treatment changes the CAT activity in the barley cultivars under the cold treatment and plays a regulating role in plants during the oxidative burst caused by cold stress. Although Tasgin et al (2006) determined that the SA treatment caused a decrease in the CAT activity in the winter wheat under cold conditions, in the present study; CAT activities were induced by 0.1 mM SA application in tolerant cultivar. Zhang et al (2011b) also found that the exogenous application of SA increased the CAT activities in C. sativus, while the activity reduced in two rice cultivars under the cold condition (Wang et al 2009b).…”

“…These data suggest that the CAT activity can be significantly affected by cold stress. The stimulation of CAT activity by biotic and abiotic stresses is a phenomenon that occurs in many different kinds of plant species (Vanacker et al 1998;Hernandez et al 2000;Patykowski and Urbanek, 2003;Tasgin et al 2006;Mutlu et al 2009a). When the results of H 2 O 2 content and CAT activity obtained from the both cold-treated barley plants are connected, it is seen that the decrease in the H 2 O 2 content was parallel with the increase in the CAT activity (Figure 2 and 3).…”

“…Cold stress caused by low temperatures has important implications on the growth and development of crop plants (Janda et al 2003;Tasgin et al 2006). Although plants have different responses in their resistance mechanism to low temperatures (Lewitt 1980), coldsensitive plants suffer from metabolic decomposition when they are exposed to cold stress and characteristically exhibit structural injuries (Atici and Nalbantoglu 2003).…”

“…For example, exogenous SA treatment could improve chilling tolerance in maize (Janda et al 1999;Horvath et al 2002), tomato (Ding et al 2002), banana (Kang et al 2003), winter wheat (Tasgin et al 2006;Esim and Atici 2015), guayule (Sundar et al 2004), red globe grape (Li et al 2005), Brassica juncea (Setia et al 2006), radish (Biao, 2006), cucumber (Xia et al 2007;Lei et al 2010), grass (Wang et al 2009a) and barley (Mutlu et al 2013a(Mutlu et al , 2013b. Recently, some researchers carried out on winter wheat (Tasgin et al 2006) and watermelon (Yang et al 2008) demonstrated that exogenous SA treatment could be involved in cold tolerance by regulating the activities of antioxidant enzymes.…”

“…For example, exogenous SA treatment could improve chilling tolerance in maize (Janda et al 1999;Horvath et al 2002), tomato (Ding et al 2002), banana (Kang et al 2003), winter wheat (Tasgin et al 2006;Esim and Atici 2015), guayule (Sundar et al 2004), red globe grape (Li et al 2005), Brassica juncea (Setia et al 2006), radish (Biao, 2006), cucumber (Xia et al 2007;Lei et al 2010), grass (Wang et al 2009a) and barley (Mutlu et al 2013a(Mutlu et al , 2013b. Recently, some researchers carried out on winter wheat (Tasgin et al 2006) and watermelon (Yang et al 2008) demonstrated that exogenous SA treatment could be involved in cold tolerance by regulating the activities of antioxidant enzymes. The action mode of exogenous SA on the antioxidative system during response to cold and the time-dependent effect of SA when it was applied to a plant before cold exposure are still unclear although recent studies provide intensive data about the role of exogenous SA in the regulation of environmental stress response, including cold stress (Korkmaz, 2005;Shi et al 2006;Guo et al 2009;Mutlu et al 2009a;Xia et al 2009;Hu et al 2010;Dias et al 2011;Zhang et al 2011b;Luo et al 2012).…”