title: [Effects of elevated ozone on phenolic substances content and total antioxidative capacity of Quercus mongolica leaves].
abstract: An open-top chamber experiment was conducted to examine the effects of elevated atmospheric O3 (80 +/- 8 nmol x mol(-1)) on the total phenols, flavonoid, condensed tannin, and MDA contents, and the total antioxidative capacity of Quercus mongolica leaves. Elevated O3 increased the contents of total phenols and condensed tannin by 48.17% and 26.77% (P < 0.05), and the flavonoid and MDA contents by 24.66% and 5.26% (P > 0.05), respectively. The total antioxidant capacity of Q. mogonlica leaves determined by DPPH method was enhanced significantly (P < 0.05), and had an obvious linear relationship with the contents of total phenols and condensed tannin.
authors.affiliation: Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. guoyouzhang@163.com
authors.forename: Guo-you
authors.initials: GY
authors.lastname: Zhang
authors.forename: Xing-yuan
authors.initials: XY
authors.lastname: He
authors.forename: Ling
authors.initials: L
authors.lastname: Tang
authors.forename: Kun
authors.initials: K
authors.lastname: Yan
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.forename: Sheng
authors.initials: S
authors.lastname: Xu
authors.forename: Xiang
authors.initials: X
authors.lastname: Li
mesh_terms: D000393:Air Pollutants / Q000633:toxicity*; D005419:Flavonoids / Q000378:metabolism; D008315:Malondialdehyde / Q000378:metabolism*; D010126:Ozone / Q000633:toxicity*; D010636:Phenols / Q000378:metabolism*; D018515:Plant Leaves / Q000378:metabolism; D044945:Proanthocyanidins / Q000378:metabolism; D029963:Quercus / Q000378:metabolism*
chemical_list: D000393:Air Pollutants; D005419:Flavonoids; D010636:Phenols; D044945:Proanthocyanidins; D008315:Malondialdehyde; D010126:Ozone