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LI Yue, XIE Shi, CHEN Zhong-lin, XU Su-nan, ZHANG Li-hong**
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Abstract: A hydroponic experiment was conducted to study the impacts of zinc (Zn), benzo\[a\]pyrene (B\[a\]P), and their combination on the growth and antioxidant enzymes activities of Triticum aestivum seedlings. As compared with CK, the biomass and plant height of the seedlings under the stresses of Zn, B\[a\]P, and their combination decreased. Under the combined stress of 300 mg·L-1 of Zn and 54 mg·L-1 of B\[a\]P, the above and underground dry mass decreased by 36.4% and 51.7%, respectively, and the decrements were obviously larger than those under single stress. In all treatments with Zn and/or B\[a\]P, the superoxide dismutase (SOD) activity presented a trend of increasedecreaseincrease and was lower than that in CK, whereas the peroxidase (POD) and catalase (CAT) activities decreased after an initial increase. Under combined stress, the POD activity was the highest, while the CAT activity was the lowest. Under the single and the combined stress, the seedling’s growth was inhibited, being most obvious under combined stress. The joint action of Zn and B\[a\]P was of synergistic effect.
LI Yue, XIE Shi, CHEN Zhong-lin, XU Su-nan, ZHANG Li-hong**. Impacts of zinc, benzo\[a\]pyrene, and their combination on the growth and antioxidant enzymes activities of wheat (Triticum aestivum L.) seedlings.[J]. cje.
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URL: https://www.cje.net.cn/EN/abstract/abstract17308.shtml
https://www.cje.net.cn/EN/Y2013/V32/I2/358