SGEM GeoConferences Library

CONCENTRATION OF METALS IN MUSHROOMS WITH POTENTIAL MYCOREMEDIATION OF SOIL

AUTHOR/S: E. BUTNARU, L. AGOROAEI, C. MIRCEA, F. CRIVOI, V. CHINAN, C. TANASE
Sunday 1 August 2010 by Libadmin2008

8th International Scientific Conference - SGEM2008, www.sgem.org, SGEM2008 Conference Proceedings/ ISBN: 954-918181-2, June 16-20, 2008, Vol. 2, 91-98 pp

ABSTRACT

The mushrooms are able of cumulating metals from environment depending on specie,
harvesting place, type of soil, degree of development and other environment conditions.
The paper presents the results of the study on levels of copper, zinc, iron, manganese,
chromium and calcium in mushroom harvests from Calimani site where the soil is
degraded by mining work. The mycological material (19 samples of mushrooms) was
harvested from 6 places of Calimani site: Ilva Dump, Dumitrelul Dump, near Dump of
Pin, Dump of Pin, Pinus cembra Reservation and the Calimani Mountains, in summerautumn
(July, August and October) 2007.

There were identified 8 species, as follows: Suillus luteus, Laccaria laccata, Inocybe
lacera, Suillus grevillei, Suillus variegatus, Leccinum piceinum, Fomitopsis pinicola,
Hebeloma subsaponaceum.

The metals were determined by spectrophotometry with atomic absorption, after a
previous wet mineralization with hot nitric acid. The results were expressed in μg/g
dried mushrooms at 105ºC. Highest values of copper (69.67), zinc (241.98) and
chromium (28.30) were registered in Laccaria laccata harvested from Pinus cembra
Reservation.

The highest value for manganese was in Hebeloma subsaponaceum (46.91) harvested
from the same place as Laccaria laccata (Pinus cembra Reservation). The sample
Inocybe lacera from near Dump of Pin had high values of iron (1602.42) and calcium
(6526.28). The species of mushroom studied in this research accumulated high
concentrations of copper, zinc, iron, manganese and chromium; they may be considered
very important for evaluating the process of mycoremediation of degraded soil by
mining activities.

Keywords: soil, metal, mushroom, mycoremediation