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Effects of indole‐3‐butytric acid (IBA) on growth and cadmium accumulation in the accumulator plant Stellaria media
Author(s) -
Lin Lijin,
Ma Qianqian,
Wang Jin,
Lv Xiulan,
Liao Ming'an,
Xia Hui,
Chen Shengxiang,
Lai Yunsong,
Chen Cheng,
Wang Xun,
Tang Yi,
Liang Dong
Publication year - 2018
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12746
Subject(s) - stellaria media , shoot , cadmium , chemistry , horticulture , gibberellic acid , extraction (chemistry) , hyperaccumulator , brewing , botany , heavy metals , food science , germination , biology , phytoremediation , chromatography , environmental chemistry , weed , fermentation , organic chemistry
The aim of this study was to determine the effects of exogenous indole‐3‐butyric acid (IBA) on the growth and cadmium (Cd) accumulation in the Cd‐accumulator plant Stellaria media . Exogenous IBA was applied as a foliar spray to S. media sddelings growing in Cd‐contaminated soil. Statistical analyses of data were conducted using SPSS 13.0 (SPSS, Chicago, IL). Treatment with IBA (50, 75, and 100 mg L −1 ) increased the root, shoot, and whole plant biomasses of S. media , and also increased the photosynthetic pigment content, antioxidant enzyme activity, soluble protein content, and soluble sugar content of S. media , compared with their respective levels in controls. The maximum values for these parameters were at the 75 mg L −1 IBA treatment. Treatment with 50 mg L −1 IBA increased the Cd content in the roots and shoots of S. media compared with the control. Treatment with 75 mg L −1 IBA increased the amount of Cd extracted by roots and shoots compared with controls. The maximum Cd extraction by roots and shoots was in the 75 mg L −1 IBA treatment. These findings indicated that IBA could promote the growth of S. media , and treatment with 75 mg L −1 IBA effectively could enhance Cd extraction from soil by S. media . © 2017 American Institute of Chemical Engineers Environ Prog, 37: 733–737, 2018