Lead-tolerance in Deschampsia flexuosa from a naturally lead polluted area in S Norway [grass]
1980
Hoeiland, K. | Oftedal, P. (Oslo Univ. (Norway). Botanical Garden and Museum)
Near the town Gjoevik in S Norway, there are small areas with natural lead pollution. These areas are covered with the grass Deschampsia flexuosa which has developed lead tolerance. Clones of D. flexuosa from the lead polluted areas, from natural vegetation in the vicinity of the lead areas, and from normal soil were cultivated to study the lead tolerance. The growth of different clones was tested in different lead solutions. Most of the clones from the lead polluted areas exhibited lead tolerance when compared with the control clones from normal soil. Even the clones from natural vegetation in the vicinity of the lead polluted areas exhibited some lead tolerance. The most lead tolerant clones accumulated about twice as much lead in the roots as the control clones.
显示更多 [+] 显示较少 [-]