Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1021/es061407s
Titel (primär) Effect of fungal hyphae on the access of bacteria to phenanthrene in soil
Autor Wick, L.Y.; Remer, R.; Würz, B.; Reichenbach, J.; Braun, S.; Schäfer, F.; Harms, H.
Quelle Environmental Science & Technology
Erscheinungsjahr 2007
Department UMB
Band/Volume 41
Heft 2
Seite von 500
Seite bis 505
Sprache englisch
Abstract The effect of fungal hyphae on the mobilization of soil-dwelling bacteria and their access to hydrophobic phenanthrene in soil was tested in columns containing air-filled agricultural soil. The experimental design included a spatial separation between zones of bacterial inoculation and contamination. Motile Pseudomonas putida PpG7 (NAH7) and fast-growing, hydrophilic Pythium ultimum were used as the model phenanthrene-degrading and vector organisms, respectively. Efficient translocation of strain PpG7 in the range of centimetres in presence of P. ultimum indicated that the fungal mycelia bridged air-filled pores and thereby provided a continuous network of water-paths that enabled bacteria to spread in the soil. Biodegradation of the soil-associated phenanthrene was found only in the presence of the fungal mycelia, hence proving that the fungal network facilitated the access of the bacteria to the contaminant. Our data suggest that the specific stimulation of indigenous fungi is a promising method to mobilize pollutant degrading bacteria and thereby improve soil bioremediation in-situ.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=2420
Wick, L.Y., Remer, R., Würz, B., Reichenbach, J., Braun, S., Schäfer, F., Harms, H. (2007):
Effect of fungal hyphae on the access of bacteria to phenanthrene in soil
Environ. Sci. Technol. 41 (2), 500 - 505 10.1021/es061407s