title: Silicon alleviates simulated acid rain stress of Oryza sativa L. seedlings by adjusting physiology activity and mineral nutrients.
abstract: Silicon (Si) has been a modulator in plants under abiotic stresses, such as acid rain. To understand how silicon made an effect on rice (Oryza sativa L.) exposed to simulated acid rain (SAR) stress, the growth, physiologic activity, and mineral nutrient content in leaves of rice were investigated. The results showed that combined treatments with Si (1.0, 2.0, or 4.0 mM) and SAR (pH 4.0, 3.0, or 2.0) obviously improved the rice growth compared with the single treatment with SAR. Incorporation of Si into SAR treatment decreased malondialdehyde (MDA) content; increased soluble protein and proline contents; promoted CAT, POD, SOD, and APX activity; and maintained the K, Ca, Mg, Fe, Zn, Cu content balance in leaves of rice seedlings under SAR stress. The moderate concentration of Si (2.0 mM) was better than the low and high concentration of Si (1.0 and 4.0 mM). Therefore, application of Si could be a better strategy for maintaining the crop productivity in acid rain regions.
authors.affiliation: School of Environment and Spatial Informatics, China University of Mining & Technology, No.1, Daxue Road, Xuzhou, Jiangsu, 221116, China.|Xuzhou Institute of Technology, Xuzhou, 221111, China.
authors.forename: Shuming
authors.initials: S
authors.lastname: Ju
authors.affiliation: School of Environment and Spatial Informatics, China University of Mining & Technology, No.1, Daxue Road, Xuzhou, Jiangsu, 221116, China. qusm2010@163.com.
authors.forename: Liping
authors.initials: L
authors.lastname: Wang
authors.affiliation: School of Environment and Spatial Informatics, China University of Mining & Technology, No.1, Daxue Road, Xuzhou, Jiangsu, 221116, China.
authors.forename: Ningning
authors.initials: N
authors.lastname: Yin
authors.affiliation: School of Environment and Spatial Informatics, China University of Mining & Technology, No.1, Daxue Road, Xuzhou, Jiangsu, 221116, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Li
authors.affiliation: Xuzhou Institute of Technology, Xuzhou, 221111, China.
authors.forename: Yukun
authors.initials: Y
authors.lastname: Wang
authors.affiliation: School of Environment and Spatial Informatics, China University of Mining & Technology, No.1, Daxue Road, Xuzhou, Jiangsu, 221116, China.|Xuzhou Institute of Technology, Xuzhou, 221111, China.
authors.forename: Cuiying
authors.initials: C
authors.lastname: Zhang
mesh_terms: D015258:Acid Rain; D060387:Ascorbate Peroxidases / Q000378:metabolism; D002374:Catalase / Q000378:metabolism; D008315:Malondialdehyde / Q000378:metabolism; D012275:Oryza / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism; D018384:Oxidative Stress; D009195:Peroxidase / Q000378:metabolism; D018515:Plant Leaves / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism; D010940:Plant Proteins / Q000378:metabolism; D011392:Proline / Q000378:metabolism; D036226:Seedlings / Q000187:drug effects / Q000254:growth & development*; D012825:Silicon / Q000494:pharmacology*; D013482:Superoxide Dismutase / Q000378:metabolism; D014131:Trace Elements / Q000378:metabolism
chemical_list: D015258:Acid Rain; D010940:Plant Proteins; D014131:Trace Elements; D008315:Malondialdehyde; D011392:Proline; D060387:Ascorbate Peroxidases; D002374:Catalase; D009195:Peroxidase; D013482:Superoxide Dismutase; D012825:Silicon
keywords: Antioxidative enzyme; Mineral nutrient; Plant growth; Rice; Silicon; Simulated acid rain