title: A chromium-tolerant plant growing in Cr-contaminated land.
abstract: In this paper, a kind of Typhaceae plant species, Typha angustifolia L, with a high tolerance to Cr is described. Experiments were carried out to examine its ability to tolerant Cr and its physiological response. The results showed that there was no difference in growth, plant height, and biomass response to external Cr (VI) between the plants exposed to 100 microM Cr (VI) and control (0 microM), while increasing Cr levels to 200-800 microM induced a significant decrease in plant height and biomass, but no significant injury was detected, even for the plants exposed to 800 microM Cr. Chromium induced significant increases in superoxide dismutase (SOD) and peroxidase (POD) activities. Meanwhile, a significantly positive correlation was found between Cr and Mn or Cu in leaves and roots, respectively. The Cr tolerance of the plant appeared to be associated with the enhancement of SOD and POD activities and the improvement in uptake and translocation of the essential microelements.
authors.affiliation: Department of Agronomy, Huajiachi Campus, Zhejiang University, Hangzhou, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Dong
authors.forename: Feibo
authors.initials: F
authors.lastname: Wu
authors.forename: Rgui
authors.initials: R
authors.lastname: Huang
authors.forename: Guoping
authors.initials: G
authors.lastname: Zang
mesh_terms: D018533:Biomass; D002857:Chromium / Q000378:metabolism*; D003300:Copper / Q000378:metabolism; D018527:Hydroponics; D007501:Iron / Q000378:metabolism; D007700:Kinetics; D008345:Manganese / Q000378:metabolism; D018515:Plant Leaves / Q000378:metabolism; D018517:Plant Roots / Q000378:metabolism; D012989:Soil Pollutants / Q000378:metabolism*; D032401:Typhaceae / Q000254:growth & development* / Q000378:metabolism*; D015032:Zinc / Q000378:metabolism
chemical_list: D012989:Soil Pollutants; D002857:Chromium; D008345:Manganese; D003300:Copper; D007501:Iron; D015032:Zinc