NDLI: Physiological Responses of Radish (Raphanus Sativus L.) to Lead Stress

Content Provider	IEEE Xplore Digital Library
Author	Ling-Li He Li-Wang Liu Yi-Qin Gong Xi-Lin Hou Xian-Wen Zhu Jin-Lan Yang Bin Wu
Copyright Year	2008
Description	Author affiliation: Nat. Key Lab. of Crop Genetics & Germplasm Enhancement, Nanjing Agric. Univ., Nanjing (Ling-Li He; Li-Wang Liu; Yi-Qin Gong; Xi-Lin Hou)
Abstract	To investigate the phytotoxicity and tolerance responses of radish (Raphanus sativus L.) to Lead (Pb), plants of two genotypes were exposed to various concentrations of Pb (0, 100, 400 and 800 mg $L^{-1})$ for up to 8 days by hydroponics culture. The plant growth was inhibited under Pb stress, with the decrease of root length, fresh and dry weights. Excess Pb induced MDA contents increasing significantly and MDA in shoot was much higher than that in root, while the content of MDA in Nau-Rg05 was higher than that in Nau-Zdcb05. The antioxidant activities (SOD, POD, CAT and APX) increased in the roots at 100 mg $L^{-1}$ Pb compared to control and followed by decreasing with the increasing Pb concentrations, indicating a direct correlation with Pb accumulation. Moreover, the antioxidant activities in root of Nau-Rg05 were higher than that in Nau-Zdcb05. It can be suggested that Pb induces oxidative stress in growing radish plants and the SOD, POD, CAT and APX could serve as important components of antioxidative defense mechanism against Pb stress in radish.
Starting Page	4602
Ending Page	4605
File Size	119884
Page Count	4
File Format	PDF
ISBN	9781424417476
DOI	10.1109/ICBBE.2008.310
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Environmentally friendly manufacturing techniques Laboratories Crops Human factors Lead Soil Lipidomics Biochemistry Industrial pollution Stress
Content Type	Text
Resource Type	Article

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