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	Differential responses in two varieties of winter wheat to elevated ozone concentration under fully open-air field conditions
	Feng, Zhaozhong1; Pang, Jing1,2; Kobayashi, Kazuhiko1; Zhu, Jianguo3; Ort, Donald R.4,5
刊名	GLOBAL CHANGE BIOLOGY
	2011
卷号	17期号:1页码:580-591
关键词	chlorophyll fluorescence gas exchange ozone ozone uptake variety winter wheat
ISSN号	1354-1013
DOI	10.1111/j.1365-2486.2010.02184.x
通讯作者	Kobayashi, Kazuhiko(aclasman@mail.ecc.u-tokyo.ac.jp)
英文摘要	Two modern cultivars [Yangmai16 (Y16) and Yangfumai 2 (Y2)] of winter wheat (Triticum aestivum L.) with almost identical phenology were investigated to determine the impacts of elevated ozone concentration (E-O(3)) on physiological characters related to photosynthesis under fully open-air field conditions in China. The plants were exposed from the initiation of tillering to final harvest, with E-O(3) of 127% of the ambient ozone concentration (A-O(3)). Measurements of pigments, gas exchange rates, chlorophyll a fluorescence and lipid oxidation were made in three replicated plots throughout flag leaf development. In cultivar Y2, E-O(3) significantly accelerated leaf senescence, as indicated by increased lipid oxidation as well as faster declines in pigment amounts and photosynthetic rates. The lower photosynthetic rates were mainly due to nonstomatal factors, e.g. lower maximum carboxylation capacity, electron transport rates and light energy distribution. In cultivar Y16, by contrast, the effects of E-O(3) were observed only at the very last stage of flag leaf ageing. Since the two cultivars had almost identical phenology and very similar leaf stomatal conductance before senescence, the greater impacts of E-O(3) on cultivars Y2 than Y16 cannot be explained by differential ozone uptake. Our findings will be useful for scientists to select O(3)-tolerant wheat cultivars against the rising surface [O(3)] in East and South Asia.
收录类别	SCI
WOS关键词	TRITICUM-AESTIVUM L. ; IN-VIVO ANALYSIS ; CHLOROPHYLL-A FLUORESCENCE ; GAS-EXCHANGE ; SPRING WHEAT ; ANTIOXIDANT SYSTEMS ; LEAF SENESCENCE ; ASCORBIC-ACID ; STOMATAL CONDUCTANCE ; CO2 ASSIMILATION
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
语种	英语
出版者	WILEY-BLACKWELL PUBLISHING, INC
WOS记录号	WOS:000284851500047
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2559062
专题	南京土壤研究所
通讯作者	Kobayashi, Kazuhiko
作者单位	1.Univ Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, Tokyo 1138657, Japan 2.Hubei Univ, Acad Resource & Environm, Wuhan 430064, Peoples R China 3.Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Peoples R China 4.USDA ARS, Photosynth Res Unit, Urbana, IL 61801 USA 5.Univ Illinois, Inst Genom Biol, Urbana, IL 61801 USA
推荐引用方式 GB/T 7714	Feng, Zhaozhong,Pang, Jing,Kobayashi, Kazuhiko,et al. Differential responses in two varieties of winter wheat to elevated ozone concentration under fully open-air field conditions[J]. GLOBAL CHANGE BIOLOGY,2011,17(1):580-591.
APA	Feng, Zhaozhong,Pang, Jing,Kobayashi, Kazuhiko,Zhu, Jianguo,&Ort, Donald R..(2011).Differential responses in two varieties of winter wheat to elevated ozone concentration under fully open-air field conditions.GLOBAL CHANGE BIOLOGY,17(1),580-591.
MLA	Feng, Zhaozhong,et al."Differential responses in two varieties of winter wheat to elevated ozone concentration under fully open-air field conditions".GLOBAL CHANGE BIOLOGY 17.1(2011):580-591.

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