Cadmium-induced ultramorphological and physiological changes in leaves of two transgenic cotton cultivars and their wild relative

Cadmium toxicity in Maize (Zea mays L.): consequences on antioxidative systems, reactive oxygen species and cadmium accumulation

“…The present indicated that with increasing Cd concentration, there was parallel increase in Cd uptake and accumulation irrespective of plant part. Our results are supported by the finding of Daud et al (2009) who reported that increasing concentration of Cd caused a linear enhancement of Cd uptake in different parts of cotton; however, its accumulation in roots was much higher than stem. Less Cd concentration in seeds of Wan Dan 13 (Fig.…”

Calcium invigorates the cadmium-stressed Brassica napus L. plants by strengthening their photosynthetic system

“…Toxic effects of Cd on plant growth and metabolism were explored by Shamsi et al (2008) and Daud et al (2009). The Cd toxicity stress inhibited growth of B.…”

“…Enhanced Cd pollution in agricultural lands is mostly through human interventions, e.g., use of phosphatic fertilizers, sewage sludge, untreated wastewater and pesticides (Qadir et al 2000), mining and smelting, and traffic (Karadaş and Kara 2010). Cadmium interferes different metabolic processes and causes diminished water and nutrient uptake in plants (Najeeb et al 2011), resulting in chlorosis, growth inhibition, browning of root tips, ultra-structural damage, and ultimately plant death (Daud et al 2009). Reduced plant biomass, chlorophyll fluorescence, and photosynthesis attributes under Cd stress (Küpper et al 2007) are related to effective index for evaluating Cd toxicity in plants (Sun and Shen 2007).…”

Citric acid enhances the phytoextraction of manganese and plant growth by alleviating the ultrastructural damages in Juncus effusus L.

“…Chloroplast is highly susceptible to oxidative stress caused by elevated oxygen levels, electron flux, and the presence of metal ions in their microenvironment [55]. Heavy metal stress was reported to change the morphology of chloroplast, increase the number and size of starch grains as well as plastoglobuli in plants [56]. The positive role of citric acid in the alleviation of Mn toxicity was, therefore, obvious from the reduced number of plastoglobuli in the chloroplast of citric acid treated plants.…”