Salicylic acid-mediated hydrogen peroxide accumulation and protection against Cd toxicity in rice leaves

Abstract

The role of H 2

Interaction of polyamine on oxidative stress induced by exogenously applied hydrogen peroxide in Salvinia natans Linn

“…The H 2 O 2 content was calculated with molar extinction coefficient 0.28 μmol cm -1 . Histochemical detection of H 2 O 2 : H 2 O 2 was detected histochemicaly in leaves by using 3,3-diaminobenzidine (DAB) as substrate (Chao et al 2010). In the present experiment, leaf tissue was dipped in DAB (1 mg mL This treatment decolorized the tissues, except for the brown colored polymerized product produced by DAB with H 2 O 2 .…”

Ethylene glycol tetra-acetic acid and salicylic acid improve anti-oxidative ability of maize seedling leaves under heavy-metal and polyethylene glycol 6000-simulated drought stress

“…In recent years, it has become clear that heavy metal ions (especially divalent ions) exert striking toxic effects on plant growth and seedling development (Shao et al 2008;Manchanda & Garg 2011;Radoglou et al 2011;Xiao et al 2011;Minutolo et al 2012;Rahman et al 2012;Song et al 2012Song et al , 2013 Guo et al 2007;Shao et al 2008;Chao et al 2010;Bajguz 2011;Baldantoni et al 2011;Basile et al 2011;Doganlar & Atmaca 2011;Ippolito et al 2011;Manchanda & Garg 2011;Xiao et al 2011;Fellet et T P 2 T P 3 T P 4 T P 5 T P 6 T P 7 T P 8 T P 9 T P 1 0 T P 1 1 T P 1 2 T 0 ( C K ) T P 1 T P 2 T P 3 T P 4 T P 5 T P 6 T P 7 T P 8 T P 9 T P 1 0 T P 1 1 T P 1 2 T 0 ( C K ) T P 1 T P 2 T P 3 T P 4 T P 5 T P 6 T P 7 T P 8 T P 9 T P 1 0 T P 1 1 T P 1 2 T 0 ( C K ) T P 1 T P 2 T P 3 T P 4 T P 5 T P 6 T P 7 T P 8 T P 9 T P 1 0 T P 1 1 T P 1 2 The effects of EGTA and SA on MDA contents in seedling leaves under PEG treatments. Note: The different small and capital letters indicate significant difference among treatments at P , 0.05 and P , 0.01 levels, respectively.…”

“…Soil is of vital importance to plant growth and development, providing all kinds of nutritious elements (Chao et al 2010;Cheng et al 2012;Mattana et al 2012;Simõ es et al 2012;Zhang et al 2012;Košir et al 2013;Lantieri et al 2013;Richter et al 2013;Zhang et al 2013). However, with the rapid industrial and agricultural development worldwide, soil pollution by heavy metals has become a serious issue.…”

“…Heavy metal elements as Cd (cadmium), Hg (mercury), and Pb (lead) have long been considered highly toxic elements, which are difficult to remove from the soil. Results of many scientific researchers showed that Cd 2þ , Hg 2þ , and Pb 2þ can inhibit photosynthesis and transpiration in plants, thus interfering with plant metabolism and accelerating plant aging (Aganchich et al 2007;Guo et al 2007;Shao et al 2008;Chao et al 2010;Bajguz 2011;Baldantoni et al 2011;Basile et al 2011;Doganlar & Atmaca 2011;Ippolito et al 2011;Manchanda & Garg, 2011;Xiao et al 2011;Fellet et al 2012;Kalavrouziotis & Koukoulakis 2012;Minutolo et al 2012;Rahman et al 2012;Song et al 2012Song et al , 2013Alaimo et al 2013;Baker et al 2013;Garg & Bhandari 2013).…”

“…The accumulation of MDA in leave and root cells has long been considered as a sign of reduced stress resistance or tolerance or even plant damage. Application of exogenous organic acids, such as ethylene glycol tetra-acetic acid (EGTA) and salicylic acid (SA), have been reported to exert certain alleviative effects on plant growth and development under heavy metal and drought stress (Aganchich et al 2007;Chao et al 2010;Ephrath et al 2011;Guan et al 2011;Cheng et al 2012;Encina et al 2012;Kalavrouziotis & Koukoulakis 2012;Baker et al 2013). The aim of this paper was to study the physiological responses of maize seedling to two different types of stress: (1) heavy metal stress by exposure to different concentrations Cd 2þ , Hg 2þ , and Pb 2þ ; and (2) drought stress induced by the application of PEG6000.…”