Avtor/Urednik | Vogel-Mikuš, Katarina; Drobne, Damjana; Regvar, Marjana | |
Naslov | Zn, Cd and Pb accumulation and arbuscular mycorrhizal colonisation of pennycress Thlaspi praecox Wulf. (Brassicaceae) from the vicinity of a lead mine and smelter in Slovenia | |
Tip | članek | |
Vir | Environ Pollut | |
Vol. in št. | Letnik 133 | |
Leto izdaje | 2005 | |
Obseg | str. 233-42 | |
Jezik | eng | |
Abstrakt | Significant hyperaccumulation of Zn, Cd and Pb in field samples of Thlaspi praecox Wulf. collected from a heavy metal polluted area in Slovenia was found, with maximal shoot concentrations of 14 590 mg kg-1 Zn, 5960 mg kg-1 Cd and 3500 mg kg-1 Pb. Shoot/root ratios of 9.6 for Zn and 5.6 for Cd show that the metals were preferentially transported to the shoots. Shoot bioaccumulation factors exceeded total soil Cd levels 75-fold and total soil Zn levels 20-fold, further supporting the hyperaccumulation of Cd and Zn. Eighty percent of Pb was retained in roots, thus indicating exclusion as a tolerance strategy for Pb. Low level colonisation with arbuscular mycorrhizal fungi (AMF) of a Paris type was observed at the polluted site, whereas at the non-polluted site Arum type colonisation was more common. To our knowledge this is the first report of Cd hyperaccumulation and AMF colonisation in metal hyperaccumulating T. praecox. | |
Deskriptorji | SOIL POLLUTANTS ZINC CADMIUM LEAD PLANT SHOOTS PLANT ROOTS MINING |