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Elevated CO₂ ameliorated the adverse effect of elevated O₃ in previous-year and current-year needles of Pinus tabulaeformis in urban area.
Bull Environ Contam Toxicol 2014; 92(6):733-7BE

Abstract

The effects of elevated CO2 (700 ppm) and/or elevated O3 (80 ppb) on different-age needles of Pinus tabulaeformis were studied in open top chambers. Elevated CO2 increased needle dry weight, net photosynthetic rate, and maximum quantum yield of photosystem II in previous and current-year needles. Elevated O3 significantly decreased dry weight, net photosynthetic rate, and maximum quantum yield of photosystem II only in previous-year needles. Elevated O3 increased hydrogen and malondialdehyde content in previous-year needles, but did not significantly increase hydrogen peroxide content in current-year needles, which indicated that oxidative stress induced by elevated O3 was more severe in previous-year needles than in current-year needles. Our results showed that the adverse effect of elevated O3 in needles of P. tabulaeformis was ameliorated by elevated CO2.

Authors+Show Affiliations

State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, People's Republic of China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24615505

Citation

Xu, Sheng, et al. "Elevated CO₂ Ameliorated the Adverse Effect of Elevated O₃ in Previous-year and Current-year Needles of Pinus Tabulaeformis in Urban Area." Bulletin of Environmental Contamination and Toxicology, vol. 92, no. 6, 2014, pp. 733-7.
Xu S, He X, Chen W, et al. Elevated CO₂ ameliorated the adverse effect of elevated O₃ in previous-year and current-year needles of Pinus tabulaeformis in urban area. Bull Environ Contam Toxicol. 2014;92(6):733-7.
Xu, S., He, X., Chen, W., Su, D., & Huang, Y. (2014). Elevated CO₂ ameliorated the adverse effect of elevated O₃ in previous-year and current-year needles of Pinus tabulaeformis in urban area. Bulletin of Environmental Contamination and Toxicology, 92(6), pp. 733-7. doi:10.1007/s00128-014-1246-1.
Xu S, et al. Elevated CO₂ Ameliorated the Adverse Effect of Elevated O₃ in Previous-year and Current-year Needles of Pinus Tabulaeformis in Urban Area. Bull Environ Contam Toxicol. 2014;92(6):733-7. PubMed PMID: 24615505.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Elevated CO₂ ameliorated the adverse effect of elevated O₃ in previous-year and current-year needles of Pinus tabulaeformis in urban area. AU - Xu,Sheng, AU - He,Xingyuan, AU - Chen,Wei, AU - Su,Daoyan, AU - Huang,Yanqing, Y1 - 2014/03/11/ PY - 2013/05/10/received PY - 2014/03/01/accepted PY - 2014/3/12/entrez PY - 2014/3/13/pubmed PY - 2014/7/16/medline SP - 733 EP - 7 JF - Bulletin of environmental contamination and toxicology JO - Bull Environ Contam Toxicol VL - 92 IS - 6 N2 - The effects of elevated CO2 (700 ppm) and/or elevated O3 (80 ppb) on different-age needles of Pinus tabulaeformis were studied in open top chambers. Elevated CO2 increased needle dry weight, net photosynthetic rate, and maximum quantum yield of photosystem II in previous and current-year needles. Elevated O3 significantly decreased dry weight, net photosynthetic rate, and maximum quantum yield of photosystem II only in previous-year needles. Elevated O3 increased hydrogen and malondialdehyde content in previous-year needles, but did not significantly increase hydrogen peroxide content in current-year needles, which indicated that oxidative stress induced by elevated O3 was more severe in previous-year needles than in current-year needles. Our results showed that the adverse effect of elevated O3 in needles of P. tabulaeformis was ameliorated by elevated CO2. SN - 1432-0800 UR - https://www.unboundmedicine.com/medline/citation/24615505/Elevated_CO₂_ameliorated_the_adverse_effect_of_elevated_O₃_in_previous_year_and_current_year_needles_of_Pinus_tabulaeformis_in_urban_area_ L2 - https://dx.doi.org/10.1007/s00128-014-1246-1 DB - PRIME DP - Unbound Medicine ER -