Hydrocarbon stress response of four tropical plants in weathered crude oil contaminated soil in microcosms

被引：13

作者：

Adieze, Ifechukwu E. ^{[1
]}

Orji, Justina C. ^{[1
]}

Nwabueze, Rose N. ^{[1
]}

Onyeze, G.O.C. ^{[2
]}

机构：

[1] Microbiology Department, Federal University of Technology, Owerri

[2] Biochemistry Department, Federal University of Technology, Owerri

来源：

International Journal of Environmental Studies | 2012年 / 69卷 / 03期

关键词：

Hydrocarbon contaminant stress; Phytoremediation; Phytotoxicity susceptibility;

D O I：

10.1080/00207233.2012.665785

中图分类号：

学科分类号：

摘要：

Responses to hydrocarbon stress of four tropical plants Panicum maximum, Zea mays, Centrosema sp. and Pueraria sp. grown in crude oil contaminated soils (1%, 5% and 10% w/w) were evaluated in a green house. Plants' percentage survival, shoot heights, biomass development, and phytotoxicity susceptibility were used as indicators of growth, stress response and hydrocarbon tolerance. Relative to control, shoot heights and biomass of plants reduced with increasing hydrocarbon concentration, but 1% w/w oil-in-soil, stimulated shoot heights (5.9% and 6.4%) and weights (21.9% and 2.3%) in P. maximum and Centrosema sp. respectively. P. maximum tolerated the contaminant stress with biomass yields of 113% and 57% of control respectively in 1% and 10% w/w oil-in-soil. All the plants had 100% survival in 1% w/w, but considerably reduced survival in 10% w/w oil-in-soil. These results show that P. maximum has great potential for phytoremediation of petroleum contaminated soil. © 2012 Copyright Taylor and Francis Group, LLC.

引用

页码：490 / 500

页数：10

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