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Soil salinity alters the sexual responses to elevated CO2 and temperature in growth and leaf traits of a dioecious plant
Li, Ling1,2; Duan, Baoli1; Deng, Dongzhou3; Tu, Weiguo2; Zhang, Yuanbin1
Corresponding AuthorYuanbin Zhang
2014
Source PublicationCANADIAN JOURNAL OF FOREST RESEARCH
ISSN0045-5067
EISSN1208-6037
Volume44Issue:10Pages:1292-1301
SubtypeArticle
AbstractThis study elucidated whether the adverse effect of soil salinity is different between Populus yunnanensis Dode males and females under climate change. We hypothesized that the magnitude and direction of sexual responses to elevated CO2 and warming will be modified by soil salinity in dioecious plants. Populus yunnanensis was employed as a model species to study sexual responses in growth, photosynthesis, carbohydrate accumulation, and C and N allocation to elevated CO2 and temperature under soil salinity. Cuttings were divided into control and salt groups and were exposed to two CO2 regimes (ambient CO2 and double ambient CO2) and two temperature regimes (ambient temperature and ambient temperature + 2.2 degrees C) in growth chambers. Males exhibited a greater down-regulation of the net photosynthesis rate (Anet) than did females at elevated CO2, primarily due to their poorer carbon sink-source balance and lower N availability. In the salt group, unlike in the control group, warming showed a positive effect on the growth of both females and males, and elevated CO2 and temperature had a positive synergistic effect on the growth of both sexes. Sexual growth differences under soil salinity were reduced by elevated CO2, temperature, and a combination of both. These results provide evidence for sexually different responses to environmental changes in dioecious plants and support the idea that sex ratios will shift under climate change.
KeywordDioecy Photosynthetic Acclimation Elevated Co2 Elevated Temperature Soil Salinity
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1139/cjfr-2013-0453
URL查看原文
WOS Subject ExtendedForestry
Indexed BySCI
WOS KeywordPHOTOSYNTHETIC DOWN-REGULATION ; POPULUS-CATHAYANA ; ATMOSPHERIC CO2 ; CARBON-DIOXIDE ; C-3 PLANTS ; NITROGEN CONCENTRATION ; LOBLOLLY-PINE ; SCOTS PINE ; ACCLIMATION ; SEEDLINGS
Language英语
WOS SubjectForestry
WOS IDWOS:000343114300016
Funding OrganizationNational Key Basic Research Program of China(2012CB416901) ; Key Program of the National Natural Science Foundation of China(30930075) ; Young Talent Team Program of Institute of Mountain Hazards and Environment(SDSQB-2012-01)
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7527
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
2.Sichuan Prov Inst Nat Resource Sci, Chengdu 610015, Peoples R China
3.Sichuan Acad Forestry, Chengdu 610081, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Li, Ling,Duan, Baoli,Deng, Dongzhou,et al. Soil salinity alters the sexual responses to elevated CO2 and temperature in growth and leaf traits of a dioecious plant[J]. CANADIAN JOURNAL OF FOREST RESEARCH,2014,44(10):1292-1301.
APA Li, Ling,Duan, Baoli,Deng, Dongzhou,Tu, Weiguo,&Zhang, Yuanbin.(2014).Soil salinity alters the sexual responses to elevated CO2 and temperature in growth and leaf traits of a dioecious plant.CANADIAN JOURNAL OF FOREST RESEARCH,44(10),1292-1301.
MLA Li, Ling,et al."Soil salinity alters the sexual responses to elevated CO2 and temperature in growth and leaf traits of a dioecious plant".CANADIAN JOURNAL OF FOREST RESEARCH 44.10(2014):1292-1301.
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