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Effects of lanthanum nitrate on growth and chlorophyll fluorescence characteristics of Alternanthera philoxeroides under perchlorate stress
Xie Yinfeng1; Cai Xianlei1; Liu Weilong2; Tao Gongsheng1; Chen Qian1; Zhang Qiang1
Corresponding AuthorXie Yinfeng
2013-08-01
Source PublicationJOURNAL OF RARE EARTHS
ISSN1002-0721
Volume31Issue:8Pages:823-829
SubtypeArticle
AbstractTo investigate the effects of exogenous lanthanum (La) on Alternanthera philoxeroides (Mart.) Griseb under perchlorate stress, changes in the growth and physiological parameters were investigated in solution culture experiments under controlled conditions. Different concentrations of La (NO3)(3) were used in our study. It was shown that 0.1 and 0.5 mg/L La3+ alleviated the inhibition effect of perchlorate on A. philoxeroides, including relative growth yield, dry weight of different organs, leaf area and root activity. And La3+ prevented decline in the relative chlorophyll content and chlorophyll fluorescence parameters including F-v/Fm,Fv'/F-m',Phi(PSII) and ETR induced by perchlorate stress. Moreover, 0.5 mg/L La3+ showed an optimal mitigative effect, while excess La3+ (5.0 mg/L) led to synergistic effect on stress. Correlation analysis revealed a significant positive relationship between growth indexes and the chlorophyll fluorescence parameters, root activity and relative chlorophyll content (p<0.05). The results suggested that appropriate concentration of La3+ could effectively alleviate growth inhibition and injury of A. philoxeroides caused by perchlorate stress, and the mitigative effect of La3+ might be achieved by improving root activity, maintaining chlorophyll content and promoting photochemical efficiency of photosystem II of A. philoxeroides under perchlorate stress.
KeywordLanthanum Perchlorate Alternanthera Philoxeroides Growth Chlorophyll Fluorescence Rare Earths
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/S1002-0721(12)60365-2
WOS Subject ExtendedChemistry
Indexed BySCI
WOS KeywordTOBACCO SEEDLINGS ; ION ; PHOTOSYNTHESIS ; ACCUMULATION ; RESPONSES ; LEAVES
Language英语
WOS SubjectChemistry, Applied
WOS IDWOS:000324660500015
Funding OrganizationNanjing Forestry University(CX2011-23)
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6562
Collection山地灾害与地表过程重点实验室
山地表生过程与生态调控重点实验室
Affiliation1.Nanjing Forestry Univ, Coll Forest Resources & Environm, Nanjing 210037, Jiangsu, Peoples R China
2.Chinese Acad Sci, Chengdu Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
Recommended Citation
GB/T 7714
Xie Yinfeng,Cai Xianlei,Liu Weilong,et al. Effects of lanthanum nitrate on growth and chlorophyll fluorescence characteristics of Alternanthera philoxeroides under perchlorate stress[J]. JOURNAL OF RARE EARTHS,2013,31(8):823-829.
APA Xie Yinfeng,Cai Xianlei,Liu Weilong,Tao Gongsheng,Chen Qian,&Zhang Qiang.(2013).Effects of lanthanum nitrate on growth and chlorophyll fluorescence characteristics of Alternanthera philoxeroides under perchlorate stress.JOURNAL OF RARE EARTHS,31(8),823-829.
MLA Xie Yinfeng,et al."Effects of lanthanum nitrate on growth and chlorophyll fluorescence characteristics of Alternanthera philoxeroides under perchlorate stress".JOURNAL OF RARE EARTHS 31.8(2013):823-829.
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