Exogenous Salicylate Application Affects the Lead and Copper Accumulation Characteristics of Lemna gibba L.

Abstract

Previous studies have shown that salicylates can change the ion permeability of root cells. Therefore the possible effects of exogenous salicylate application on lead (Pb) and copper (Cu) accumulation and its protective role against DNA damage due to metal exposure in Lemna gibba were studied. L. gibba was exposed to 5, 10, and 25 μM Pb and Cu for six days in the presence and absence of sodium salicylate (SA) (0.1, 0.5, and 1 mM). At all concentrations tested, SA application decreased Pb accumulation. On the other hand, application of 0.5 mM SA increased Cu accumulation. SA did not reduce DNA damage resulting from Pb and Cu toxicity. In summary, SA may be useful for reducing Pb accumulation, and application of SA at 0.5 mM may be useful for the phytoextraction of Cu

Influence of Sodium Salicylate on Adventitious Organogenesis of a Commercial Cucumber Cultivar

“…Applied NaSA attenuated the adverse effects of salt stress on wheat (Triticum aestivum L.) and stimulated growth by increasing photosynthetic rate and retarding dark respiration (Al-Hakimi 2001). The toxicity of the heavy metals Pb and Cu in duckweed ( Lemna gibba L.) and cadmium (Cd) in maize ( Zea mays L.) were reduced by exogenous NaSA (Duman et al 2010; Gondor et al 2016).…”

Accumulation potential of Indian mustard (Brassica juncea var. arawali) and fenugreek (Trigonella foenum-graecum L.) planted on lead and nickel contaminated soil

“…EDTA has drawback of its persistence in environment due to which another chelating agents have been used such as the use of organic acids or more degradable aminopolycarboxylic acids. Salicylic acid (SA) has also been used as chelating agents for phytoextraction of heavy metals (Meng et al 2009, Duman et al 2010, Khan et al 2015, Elhassan et al 2016.…”