Identification of weed plants excluding the uptake of heavy metals.
Using the field pot-culture and sample-analysis method, 54 weed species belonging to 20 families and 31 weed species belonging to 17 families were systematically examined as to whether they can exclude the uptake of heavy metals. After a systematic identification, it was determined that Oenothera biennis and Commelina communis were Cd-excluders and Taraxacum mongolicum was a Zn-excluder. O. biennis is a potential Cd-excluder, but also a potential Cu-excluder. The research raises the possibility of making a major breakthrough in the application of metal excluders for safe agro-production in the future.
Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
Shuhe
S
Wei
Qixing
Q
Zhou
Xin
X
Wang
D002104:Cadmium / Q000378:metabolism; D034822:Commelina; D019216:Metals, Heavy / Q000032:analysis*; D031664:Oenothera; D035261:Plant Components, Aerial / Q000737:chemistry / Q000378:metabolism; D018517:Plant Roots / Q000737:chemistry / Q000378:metabolism; D010944:Plants / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D012989:Soil Pollutants / Q000032:analysis*; D031205:Taraxacum; D015032:Zinc / Q000378:metabolism
D019216:Metals, Heavy; D012989:Soil Pollutants; D002104:Cadmium; D015032:Zinc