Author/Editor		Vogel-Mikuš, Katarina; Drobne, Damjana; Regvar, Marjana
Title		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
Type		članek
Source		Environ Pollut
Vol. and No.		Letnik 133
Publication year		2005
Volume		str. 233-42
Language		eng
Abstract		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.
Descriptors		SOIL POLLUTANTS ZINC CADMIUM LEAD PLANT SHOOTS PLANT ROOTS MINING