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Publication Type:
| Report |
Author(s): | Li, De-ming;
Zhang, Xiu-juan;
Li, Gai-hua;
Deng, Dan-feng;
Zou, Heng |
Author Affiliation: | College of Horticulture and Gardening, Yangtze University, Jinzhou, China |
Title: | Effects of heavy metal ions on germination and physiological activity of Festuca arundinacea seed |
Source: | [Caoye Kexue] [Pratacultural Science]. Vol. 25, No. 6, June 15 2008, p. 98-102. |
Publishing Information: | [Lanzhou Shi, China]: ["Cao Ye Ke Xue" Bian Jibu] |
# of Pages: | 5 |
Abstract/Contents: | "The effects of three heavy metal ions including Cd2+, Cu2+ and Hg2+ on seed germination, shoot cell membrane permeability and CAT enzyme activity of Festuca arundinacea were investigated. The result showed that 0.5 mg/L and 5 mg/L Hg2+ promoted seed germination, significantly (P<0.01), 50 mg/L Cu2+ significantly inhibited the germination (P<0.01), 500 mg/L concentration of these three ions significantly inhibited the germination significantly (P<0.05). With the increasing of ions concentrations, membrane permeability of tall fescue increased gradually. Under 0.5 mg/L Cd2+ or Hg2+ treatments, membrane permeability significantly decreased (P<0.05). Hg2+ caused the highest membrane permeability under 5 mg/L & 50 mg/L treatments. The membrane permeability of Cu2+ treatment was the highest under 500 mg/L concentration. With increasing concentrations of heavy metal ions, the catalase (CAT) activity increased gradually. Under 0.5 mg/L concentration, CAT activity of Cu2+ treatment was higher correspondingly. Under 5 mg/L concentration, CAT activity of Hg2+ treatment was higher. Under 50 mg/L concentration, CAT activities of Cu2+ and Hg2+ treatments were higher than that of Cd2+. CAT activity of Cu2+ treatment was higher under 500 mg/L concentration. Germination rate correlated to membrane permeability, both were negatively correlated to CAT activity. The toxicity of Cu2+ to seed germination was the lightest and the Cd2+ was the most serious." |
Language: | Chinese |
References: | 21 |
Note: | Abstract also appears in English "Sum No. 179" Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Li, D.-m., X.-j. Zhang, G.-h. Li, D.-f. Deng, and H. Zou. 2008. Effects of heavy metal ions on germination and physiological activity of Festuca arundinacea seed. (In Chinese) [Caoye Kexue] [Pratacultural Science]. 25(6):p. 98-102. |
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