Full TGIF Record # 270957
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DOI:10.11686/cyxb20140339
Web URL(s):http://cyxb.lzu.edu.cn/EN/article/downloadArticleFile.do?attachType=PDF&id=2073
    Last checked: 04/15/2016
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Publication Type:
i
Report
Author(s):Chen, Wei; Zhang, Miao-miao; Song, Yang-yang; Chen, Jian-gang; Zhang, De-gang
Author Affiliation:Wei Chen, Song, Jian-gang Chen, and De-gang Zhang: College of Pratacultural Science, Key Laboratory of Grassland Ecosystem, Ministry of Education, Sino-U. S. Centers for Grazingland Ecosystem Sustainability; Miao-miao Zhang: College of Forestry, Gansu Agricultural University; Wei Chen: Lanzhou City University, Lanzhou, China
Title:Impacts of heavy metals on the fluorescence characteristics and root morphology of 2 turfgrass species
Source:[Caoye Xuebao] [Acta Prataculturae Sinica]. Vol. 23, No. 3, June 20 2014, p. 333-342.
# of Pages:10
Publishing Information:[Lanzhou Shi, China]: ["Cao Ye Xue Bao" Bian Ji Wei Yuan Hui]
Keywords:TIC Keywords: Comparisons; Evaluations; Festuca arundinacea; Heavy metals; Poa pratensis; Root morphology; Stress response; Stress tolerance
Abstract/Contents:"The impacts of Cu2+, Zn2+, Pb2+ and Cd2+ stresses on fluorescence characteristics and root morphology of tall fescue (Festuca elata) and perennial ryegrass (Poa pratensis) were studied. The Fv/Fm of tall fescue under Cu2+, Zn2+, Pb2+ and Cd2+ stresses were lower than that in the controls suggesting that the activity of PS II was weakened. However, it was quite different for perennial ryegrass. The Fv/Fm under Cd2+ stress was slightly higher than that in the controls indicating that the impact of Cd2+ was not significant. However, it was significantly reduced when the concentrations of Cu2+ and Zn2+ reached 500 mg/kg or more. Meanwhile, the lower concentrations of Zn2+ resulted in an improving effect on the PS? system. The qP and ETR of both species under the stresses of 4 heavy metals were lower than those in the controls suggesting that the photosynthetic activity and electron transformation efficiency were inhibited. Except at low concentrations, the root length, root area, numbers of root forks and tips of tall fescue were significantly lower than those in the controls when under stress from four heavy metals: there was a decreasing trend with increasing stress concentration. Perennial ryegrass showed a strong resistance to the stresses when heavy metals were at low concentrations and vice versa."
Language:Chinese
References:23
Note:Abstract also appears in English
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Chen, W., M.-m. Zhang, Y.-y. Song, J.-g. Chen, and D.-g. Zhang. 2014. Impacts of heavy metals on the fluorescence characteristics and root morphology of 2 turfgrass species. (In Chinese) [Caoye Xuebao] [Acta Prataculturae Sinica]. 23(3):p. 333-342.
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DOI: 10.11686/cyxb20140339
Web URL(s):
http://cyxb.lzu.edu.cn/EN/article/downloadArticleFile.do?attachType=PDF&id=2073
    Last checked: 04/15/2016
    Requires: PDF Reader
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