naa a22 4500 510752160 CHVBK 20180411083108.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11270-013-1553-x doi (NATIONALLICENCE)springer-10.1007/s11270-013-1553-x Phytotoxicity of Long-Term Total Petroleum Hydrocarbon-Contaminated Soil—A Comparative and Combined Approach [Elektronische Daten] [Kanaji Masakorala, Jun Yao, Huan Guo, Radhika Chandankere, Jingwei Wang, Minmin Cai, Haijun Liu, Martin Choi] Petroleum hydrocarbon contamination of soil is an emerging environmental threat on the Earth due to possible toxic impact on different ecological receptors. The present study was mainly carried out to evaluate the phytotoxicity of long-term total petroleum hydrocarbon-contaminated soils by the toxicity end points obtained from three plant species Zea mays, Lactuca sativa L., and Cucumis sativus. The tested soil exerted phytotoxicity for all the evaluated end points of plants with dose-dependent relationship. The determined IC50 indicates inhibition in root elongation as the most sensitive toxicity end point for L. sativa L., while inhibition in cross-section area of meristematic zone as the most susceptible and inhibition in seed germination as the least susceptible end points for both Z. mays and C. sativus. The tested root morphometric parameters confirm their applicability as novel toxicity end points. In addition, microcalorimetric analysis confirmed the applicability of inhibition in metabolic heat emission rate as a toxicity end point. Microcalorimetry can be applied to determine the exerted phytotoxic effect on seedlings. The present combined approach concludes that the phytotoxicity of the tested soil is species-specific and varies as follows: Z. mays < C. sativus < L. sativa L. The findings of this study may have implications in planning comprehensive phytotoxicity assessment for hydrocarbon-contaminated soils or screening plant species for phytoremediation program. Springer Science+Business Media Dordrecht, 2013 Total petroleum hydrocarbon nationallicence Phytotoxicity nationallicence Morphometric parameters nationallicence Metabolic heat nationallicence Masakorala Kanaji School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut Yao Jun School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut Guo Huan School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut Chandankere Radhika School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut Wang Jingwei School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut Cai Minmin School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut Liu Haijun School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut Choi Martin Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong, SAR, People's Republic of China aut Water, Air, & Soil Pollution Springer Netherlands 224/5(2013-05-01), 1-12 0049-6979 224:5<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1553-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1553-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Masakorala Kanaji School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Yao Jun School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Guo Huan School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Chandankere Radhika School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Wang Jingwei School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Cai Minmin School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Liu Haijun School of Civil and Environmental Engineering, and National "International Cooperation Based on Environment and Energy”, University of Science and Technology Beijing, 100083, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Choi Martin Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong, SAR, People's Republic of China aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/5(2013-05-01), 1-12 0049-6979 224:5<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer