Eco-toxicity effects of phenanthrene and pyrene on the inhibition of root elongation of plants in soils

Abstract

Abstract: The inhibition rates of phenanthrene, pyrene on wheat, Chinese cabbages and tomatoes were determined in the meadow brown soils. The toxicity effects of combined pollution were tested. Results indicated that there was a significant line or logarithmic relationship between the concentration of phenanthrene and pyrene, and the inhibition rates of plants(P =0.05). Inhibition of these two chemicals on plant elongation was phenanthrene >pyrene, which was closely related with the water solubility of these chemicals tested. For the toxicity of phenthanthrene and pyrene, root elongation was more sensitive than the activeness of soil dehydrogen and the MCN. Wheat was found to be the most sensible indicative plant. When phenanthrene and pyrene were combined, an obvious synergism effect was observed.

Key words: Calcium, Plant, Soil fertility, Stress, Stress tolerance

CLC Number:

X171.5

SONG Yufang, ZHOU Qixing, SONG Xueying, GONG Ping, SUN Tieheng. Eco-toxicity effects of phenanthrene and pyrene on the inhibition of root elongation of plants in soils[J]. cje, 2003, (5): 6-9.

References

[1]任丽萍.1997.超声波提取土壤样品中1,2,4-三氯苯和GC的测定[J].环境科技,17(2):62～63.
[2]宋玉芳,许华夏,任丽萍,等.2002.重金属对土壤中小麦种子发芽与根伸长抑制的生态毒性[J].应用生态学报,13(2):459～462.
[3]杨辉.1997.蚕豆根尖微核实验法检测土壤污染的研究[J].农村环境保护,18(1):20～23.
[4]宋玉芳,许华夏,任丽萍,等.2001.重金属对土壤中萝卜种子发芽与根伸长抑制的生态毒性[J].生态学杂志,4(2);4～8.
[5]刘婉,宋玉芳,周启星,等.2001.氯苯胁迫对小麦发芽与幼苗生长的影响[J].农业环境保护,20(2):65～68.
[6]许光辉,郑洪元.1986.土壤微生物分析方法手册[M].北京:农业出版社,251 254.
[7]Ince NH, et al. 1999. Assessment of toxic interactions of heavy metals in binary mixtures:A statistical approach[J]. Arch. Environ. Contamn . Toxicol . , 36: 365～372.
[8]Kjaer C, et al. 1998. Effects of soil copper on black bindweed(Fallopia convovulus)in the laboratory and in the field[J].Arch. Environ. Contamn . Toxicol , 35 : 14～19.
[9]OECD(Organization for Economic Cooperation and Development). 1984. OECD guidelines for testing of chemicals[S].Paris: European Committee, 208～209.
[10]Greene JC, et al. 1998. Protocols for short-term toxicity screening of hazardous waste sites[S]. US Environmental Protection Agency, EPA/600/3 - 88/029.
[11]International Organization for Standardization(ISO). 1993. Soil Quality-Determination of the Effects of Pollutants on Soil Flora[S].Part 1:Method for the Measurement of Inhibition of Root Growth. ISO, 11269～1.
[12]International Organization for Standardization(ISO). 1993. Soil Quality-Determination of the Effects of Pollutants on Soil Flora[S]. Part 2:Effects of Chemicals on the Emergence and Growth of Higher Plants. ISO, 11269～2.
[13]Knoke K, et al. 1999. A comparison of five bioassays to monitor toxicity during bioremediation of pentachlorophenol-contaminated soil[J]. Water Air Soil Poll., 110:157～169.
[14]Mishra A, Choudhurt MA. 1999. Monitoring of phytotoxicity of lead and mercury from germination and early seeding growth indices in two rice cultivators[J]. Water Air Soil Poll., 110:340～345.
[15]Gong P, et al. 2001. Evaluation and refinement of a continues seed germination and early seedling growth test for the use in the eco-toxicological assessment of soils[J]. Chemosphere, 44: 491～500.