title: Engineering expression of polyphosphate confers cadmium resistance in tobacco.
abstract: The feasibility of transgenic tobacco, genetically engineered to express bacterial polyphosphate (polyP) for phytoremediation of cadmium pollution was examined. The transgenic tobacco showed more resistance to Cd2+ and accumulated more Cd2+ than its wild-type progenitors. These results suggest that polyP has abilities to reduce Cd2+ toxicity, probably via a chelation mechanism, and to accumulate cadmium in the transgenic tobacco. Based on the results obtained in this study, polyP-mediated Cd2+ accumulation may serve as a useful strategy for Cd2+ phytoremediation.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Nagata
authors.forename: Tomoki
authors.initials: T
authors.lastname: Kimura
authors.forename: Hidemitsu
authors.initials: H
authors.lastname: Pan-Hou
mesh_terms: D001673:Biodegradation, Environmental; D002104:Cadmium / Q000633:toxicity*; D008628:Mercury / Q000633:toxicity; D011122:Polyphosphates / Q000378:metabolism*; D014026:Nicotiana / Q000187:drug effects* / Q000235:genetics
chemical_list: D011122:Polyphosphates; D002104:Cadmium; D008628:Mercury