Role of antioxidant systems in wild plant adaptation to salt stress

Pathways of ROS homeostasis regulation in Mesembryanthemum crystallinum L. calli exhibiting differences in rhizogenesis

“…3), which suggests that proline, in place of SOD, may function as a scavenger of the superoxide radical, The highest content of proline in CIM-NaCl DDTC callus might support this suggestion. A similar negative correlation was found between proline content and SOD activity in the halophyte Thellungiella halophila, and it was suggested that a high level of proline in this plant may compensate low SOD activity and contribute to salt resistance (Kartashov et al 2008). In our studies the addition of DDTC inhibiting SOD (Table 1) or AT inhibiting CAT (Fig.…”

Atividade de enzimas antioxidantes e inibição do crescimento radicular de feijão caupi sob diferentes níveis de salinidade

“…Assim sendo, é possível que a cultivar Pérola seja mais susceptível ao estresse salino no decorrer da germinação das sementes (Freitas 2006), superando esta susceptibilidade durante o estabelecimento das plântulas. Estes resultados indicam que a avaliação da resistência ao estresse salino deve ser conduzida com cautela, levando em conta o estádio fi siológico das plantas (Perez-Prat et al 1994;Kartashov et al 2008).…”

Priming of pathogenesis related-proteins and enzymes related to oxidative stress by plant growth promoting rhizobacteria on rice plants upon abiotic and biotic stress challenge

“…This ROS generation produces oxidative stress in plants (Cheeseman, 2007), because these ROS can damage DNA, protein, chlorophyll, and membrane functions. Following this argumentation, plant's ability to control ROS balance could be correlated with a high tolerance to these stresses (Kartashov et al, 2008). To mitigate and repair damage initiated by ROS, plants have developed a complex antioxidant system (Halliwell and Gutteridge, 2007).…”