Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.ejsobi.2008.06.004
Titel (primär) Arbuscular mycorrhizal abundance in contaminated soils around a zinc and lead deposit
Autor Zarei, M.; Saleh-Rastin, N.; Salehi Jouzani, G.; Savaghebi, G.; Buscot, F.
Quelle European Journal of Soil Biology
Erscheinungsjahr 2008
Department BOOEK
Band/Volume 44
Heft 4
Seite von 381
Seite bis 391
Sprache englisch
Keywords Arbuscular mycorrhizal symbiosis; Mycorrhizal colonization parameters; Soil pollution; Spore numbers; Physico-chemical soil properties
Abstract In order to study the variations in spore abundance and root colonization parameters of arbuscular mycorrhizal (AM) fungi in a naturally heavy metals polluted site and their relationships with soil properties, 35 plots in the Anguran Zn and Pb mining region were selected along a transect from the mine to 4500 m away. Within each plot, a composite sample of root and rhizospheric soil from a dominant indigenous plant was collected. The soil samples were analyzed for their physico-chemical characteristics. Spores were extracted, counted and identified at genus level. The roots were examined for colonization, arbuscular abundance, mycorrhizal frequency and intensity. Along the transect, the total and available (DTPA-extractable) concentration of Zn decreased from 6472 to 45 mg kg-1 and 75 to 5 mg kg-1, respectively. For Pb the values varied from 5203 to 0 mg kg-1 and 32 to 0 mg kg-1, respectively. In parallel, root colonization rate in the dominant native plants (except Alyssum sp.) varied from 35% to 85% and the spore numbers from 80 to 1306 per 200 g dry soil along the transect. Spores of Glomus were abundantly found in all plots as dominant, while Acaulospora spores were observed only in some moderately polluted and in control plots. AM fungal propagules never disappeared completely even in soils with the highest rates of both heavy metals. Spore numbers were more affected by Zn and Pb concentrations than root colonization. The variations of AM fungi propagules were better related to available than to total concentration of both metals. Spore numbers were positively correlated with mycorrhizal colonization parameters, particularly with arbuscular abundance.
dauerhafte UFZ-Verlinkung
Zarei, M., Saleh-Rastin, N., Salehi Jouzani, G., Savaghebi, G., Buscot, F. (2008):
Arbuscular mycorrhizal abundance in contaminated soils around a zinc and lead deposit
Eur. J. Soil Biol. 44 (4), 381 - 391 10.1016/j.ejsobi.2008.06.004