Mycelia promote active transport and spatial dispersion of polycyclic aromatic hydrocarbons

Environmental Science & Technology
Shoko FurunoLukas Y Wick

Abstract

To cope with heterogeneous subsurface environments mycelial microorganisms have developed a unique ramified growth form. By extending hyphae, they can obtain nutrients from remote places and transport them even through air gaps and in small pore spaces, repectively. To date, studies have been focusing on the role that networks play in the distribution of nutrients. Here, we investigated the role of mycelia for the translocation of nonessential substances, using polycyclic aromatic hydrocarbons (PAHs) as model compounds. We show that the hyphae of the mycelial soil oomycete Pythium ultimum function as active translocation vectors for a wide range of PAHs. Visualization by two-photon excitation microscopy (TPEM) demonstrated the uptake and accumulation of phenanthrene (PHE) in lipid vesicles and its active transport by cytoplasmic streaming of the hyphae ('hyphal pipelines'). In mycelial networks, contaminants were translocated over larger distances than by diffusion. Given their transport capacity and ubiquity, hyphae may substantially distribute remote hydrophobic contaminants in soil, thereby improving their bioavailability to bacterial degradation. Hyphal contaminant dispersal may provide an untapped potential for future bior...Continue Reading

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Citations

Mar 5, 2013·Environmental Science & Technology·Susan SchamfußLukas Y Wick
Nov 26, 2013·Environmental Science and Pollution Research International·Antoine FayeulleCatherine Rafin
Apr 16, 2013·Environmental Microbiology Reports·Thomas BanitzKarin Frank
Sep 10, 2015·Environmental Science & Technology·Abdelhak El AmraniRichard Berthomé
Jul 16, 2013·Environmental Pollution·Berith Elkær KnudsenJens Aamand
Aug 19, 2016·Frontiers in Microbiology·Anja WorrichMatthias Kästner
Oct 8, 2016·Environmental Science and Pollution Research International·Sergey M ShishlyannikovAlexander G Gorshkov
Dec 5, 2016·FEMS Microbiology Ecology·Sally OttoLukas Y Wick
Feb 23, 2018·FEMS Microbiology Reviews·Aurélie DeveauLukas Y Wick
Jul 11, 2019·The ISME Journal·Ruth SchmidtPaolina Garbeva
Sep 18, 2020·Applied Microbiology and Biotechnology·Qianwei LiGeoffrey Michael Gadd
Dec 14, 2019·Movement Ecology·Miloš BielčikMatthias C Rillig
Feb 2, 2021·Marine Pollution Bulletin·Joyce Álvarez-BarragánRobert Duran
Sep 19, 2017·Environmental Science & Technology·Rungroch SungthongJose Julio Ortega-Calvo

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