Influence of Aluminum and Cadmium Stresses on Mineral Nutrition and Root Exudates in Two Barley Cultivars*
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2021, Ecotoxicology and Environmental SafetyCitation Excerpt :They also may regulate the growth and reproduction of arsenic methylation microorganisms in the soil, thereby affecting arsenic volatilization in the soil-rice system. Additionally, the composition and concentration of root exudates can be changed in response to different growth and development stages or growth environments, including sugars, amino acids, organic acids, enzymes, and so on, in the growth process of rice (GUO et al., 2007; Zeng et al., 2008). Simultaneously, root exudates are the main source of nutrients for rhizosphere microbes, and the change of exudates composition ultimately affect the structure of rhizosphere microbes (Aulakh et al., 2001).
Cadmium toxicity in plants: Impacts and remediation strategies
2021, Ecotoxicology and Environmental SafetyCitation Excerpt :The uptake of P, K, S, Ca, Zn, Mn, and B in pea was strongly inhibited after exposure to Cd (Metwally et al., 2005). In barley (Hordeum vulgare L.), treatment of Cd at 1.0 µM significantly reduced the concentrations of P, K, Ca, Mg, Cu, Fe, Mn, Zn, Mo, and B in roots, while the concentration of these elements in the shoots was not decreased compared to the control (Guo et al., 2007). In saltbush (Atriplex halimus L.), a decreased uptake of Ca and K were found due to the toxicity of Cd (Kinay, 2018).
Biological mechanisms of cadmium accumulation in edible Amaranth (Amaranthus mangostanus L.) cultivars promoted by salinity: A transcriptome analysis
2020, Environmental PollutionCitation Excerpt :After 45 days’ growth (T45), plants were separated from rhizosphere soil and washed three times with deionized water. The roots were immersed into a 0.5 mmol L−1 calcium chloride (CaCl2) solution, and then they were sonicated for about 10 min to remove the attached metals (Guo et al., 2007). Roots and leaves from LY and QH cultivars were separated; meanwhile, some of tested materials were frozen using liquid nitrogen and stored at the temperature of −80 °C in a Haier freezer (DW-86L626, China) for RNA extraction.
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Project supported by the Chinese Ministry of Science and Technology (China-Australian Special Link Research Program) and the Grains Research and Development Corporation of Australia (No. UT-8)