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Dimitrios Floudas

Researcher | PhD

I study mushroom foming fungi and their ability to break down organic matter (such as cellulose and lignin) produced by other organisms. The mechanisms involved in the decomposition of organic matter are complex involving enzymes but also other less understood agents such as secondary metabolites and metal ions. To understand these mechanisms in depth I have been developing new ways to look at the decomposition of organic matter using spectroscopic methods. Furthermore, I use genomic sequences to understand how decomposition mechanisms have been evolving the last 350 MY. 

Why is the understanding of evolution and function of decomposition mechanisms important? Fungal decomposition releases carbon trapped in plant tissues back into the atmosphere. At the same time, fungi transform part of the plant carbon into fungal biomass, which along with the byproducts of decomposition participates in the formation of soils. Therefore, fungi play tremendous role in carbon cycling in terrestrial ecosystems.

Additional interests in relation to fungi include systematics and biodiversity, applications of fungi in industry and green technologies and the popularization of the cryptic lifestyles of microbes to the general public.

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Merulius tremelosus
brown rot on conifer wood
Brown rot on conifer wood
Gloeophyllum
Gloeophyllum culture on cellulose
Genomic DNA- Dimitrios Floudas
Isolated genomic DNA from Agrocybe pediades

Selected publications:

  • Nicolás C, Martin-Bertelsen T, Floudas D, Bentzer J, Smits M, Johansson T, Troein C, Persson P, Tunlid A 2018. The soil organic matter decomposition mechanisms in ectomycorrhizal fungi are tuned for liberating soil organic nitrogen.The ISME Journal. doi.org/10.1038/s41396-018-0331-6. 
  • Björnerås C, Skerlep M, Floudas D, Persson P, Kritzberg ES 2019. High sulfate concentration enhances iron mobilization from organic soil to water. Biogeochemistry 144, 245-259.
  • Floudas D, Held BW, Riley R, Nagy LG, Gage Koehler G, Anthony S. Ransdell AS, Younus H, Chow J, Chiniquy J, Lipzen A, Tritt A, Sun H, Haridas S, LaButti K, Ohm RA, Kües U, Blanchette RA, Grigoriev IV, Minto RE, Hibbett DS 2015 Evolution of novel wood decay mechanisms in Agaricales revealed by the genome sequences of Fistulina hepatica and Cylindrobasidium torrendii Fungal Genet Biol, doi:10.1016/j.fgb.2015.02.002.
  • Floudas D & Hibbett DS 2015. Revisiting the taxonomy of the genus Phanerochaete(Polyporales, Basidiomycota) using a four genes dataset and extensive ITS sampling.Fungal Biol 119, 679-719.
  • Riley R, Salamov AA, Brown DW, Nagy LG, Floudas D, Held BW, Levasseur A, Lombard V, Morin E, Otillar R, Lindquist EA, Sun H, LaButti KM, Schmutz J, Jabbour D, Luo H, Baker SE, Pisabarro AG, Walton JD, Blanchette RA, Henrissat B, Martin F, Cullen D, Hibbett DS, Grigoriev IV 2014 Extensive sampling of basidiomycete genomes demonstrates inadequacy of the white-rot/brown-rot paradigm for wood decay fungi. Proc Natl Acad Sci doi/10.1073/pnas.1400592111.
  • Ruiz-Dueñas FJ, Lundell T, Floudas D, Nagy LG, Barrasa JM, Hibbett DS, Martinez AT 2013 Lignin-degrading peroxidases in Polyporales: an evolutionary survey based on 10 sequenced genomes. Mycologia 105(6): 1428-1444.
  • Floudas D, Binder M, Riley R, Barry K, Blanchette RA, Henrissat B, Martínez AT, Otillar R, Spatafora JW, Yadav JS, Aerts A, Benoit I, Boyd A, Carlson A, Copeland A, Coutinho PM, de Vries RP, Ferreira P, Findley K, Foster B, Gaskell J, Glotzer D, Górecki P, Heitman J, Hesse C, Hori C, Igarashi K, Jurgens JA, Kallen N, Kersten P, Kohler A, Kües U, Kumar TKA, Kuo A, LaButti K, Larrondo LF, Lindquist E, Ling A, Lombard V, Lucas S, Lundell T, Martin R, McLaughlin DJ, Morgenstern I, Morin E, Murat C, Nagy LG, Nolan M, Ohm RA, Patyshakuliyeva A, Rokas A, Ruiz-Dueñas FJ, Sabat G, Salamov A, Samejima M, Schmutz J, Slot JC, St. John F, Stenlid J, Sun H, Sun S, Syed K, Tsang A, Wiebenga A, Young D, Pisabarro A, Eastwood DC, Martin F, Cullen D, Grigoriev IV, Hibbett DS 2012 The paleozoic origin of enzymatic lignin decomposition reconstructed from 31 fungal genomes. Science 336, 1715-1719.

Publications

Retrieved from Lund University's publications database

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Publications

Retrieved from Lund University's publications database

Publications

Retrieved from Lund University's publications database

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