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    Author(s): Elena Fernandez-Fueyo; Francisco J. Ruiz-Dueñas; Patricia Ferreira; Dimitrios Floudas; David S. Hibbett; Paulo Canessa; Luis F. Larrondo; Tim Y. James; Daniela Seelenfreund; Sergio Lobos; Rubén Polanco; Mario Tello; Yoichi Honda; Takahito Watanabe; Takashi Watanabe; Jae San Ryu; Christian P. Kubicek; Monika Schmoll; Jill Gaskell; Kenneth E. Hammel; Franz J. St. John; Amber Vanden Wymelenberg; Grzegorz Sabat; Sandra Splinter BonDurant; Khajamohiddin Syed; Jagjit S. Yadav; Harshavardhan Dodapaneni; Venkataramanan Subramanian; José L. Lavin; José A. Oguiza; Gumer Perez; Antonio G. Pisabarro; Lucia Ramirez; Francisco Santoyo; Emma Master; Pedro M. Coutinho; Bernard Henrissat; Vincent Lombard; Jon Karl Magnuson; Ursula Kües; Chiaki Hori; Kiyohiko Igarashi; Masahiro Samejima; Benjamin W. Held; Kerrie W. Barry; Kurt M. LaButti; Alla Lapidus; Erika A. Lindquist; Susan M. Lucas; Robert Riley; Asaf A. Salamov; Dirk Hoffmeister; Daniel Schwenk; Yitzhak Hadar; Oded Yarden; Ronald P. de Vries; Ad Wiebenga; Jan Stenlid; Daniel Eastwood; Igor V. Grigoriev; Randy M. Berka; Robert A. Blanchette; Phil Kersten; Angel T. Martinez; Rafael Vicuna; Daniel Cullen
    Date: 2012
    Source: PNAS , April 3, 2012, volume 109, number 14;2012
    Publication Series: Scientific Journal (JRNL)
    Station: Forest Products Laboratory
    PDF: Download Publication  (441.13 KB)


    Efficient lignin depolymerization is unique to the wood decay basidiomycetes, collectively referred to as white rot fungi. Phanerochaete chrysosporium simultaneously degrades lignin and cellulose, whereas the closely related species, Ceriporiopsis subvermispora, also depolymerizes lignin but may do so with relatively little cellulose degradation. To investigate the basis for selective ligninolysis, we conducted comparative genome analysis of C. subvermispora and P. chrysosporium. Genes encoding manganese peroxidase numbered 13 and five in C. subvermispora and P. chrysosporium, respectively. In addition, the C. subvermispora genome contains at least seven genes predicted to encode laccases, whereas the P. chrysosporium genome contains none. We also observed expansion of the number of C. subvermispora desaturase-encoding genes putatively involved in lipid metabolism. Microarray-based transcriptome analysis showed substantial upregulation of several desaturase and MnP genes in wood-containing medium. MS identified MnP proteins in C. subvermispora culture filtrates, but none in P. chrysosporium cultures. These results support the importance of MnP and a lignin degradation mechanism whereby cleavage of the dominant nonphenolic structures is mediated by lipid peroxidation products. Two C. subvermispora genes were predicted to encode peroxidases structurally similar to P. chrysosporium lignin peroxidase and, following heterologous expression in Escherichia coli, the enzymes were shown to oxidize high redox potential substrates, but not Mn2+. Apart from oxidative lignin degradation, we also examined cellulolytic and hemicellulolytic systems in both fungi. In summary, the C. subvermispora genetic inventory and expression patterns exhibit increased oxidoreductase potential and diminished cellulolytic capability relative to P. chrysosporium.

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    Fernandez-Fueyo, Elena; Ruiz-Dueñas, Francisco J.; Ferreira, Patricia; Floudas, Dimitrios; Hibbett, David S.; Canessa, Paulo; Larrondo, Luis F.; James, Tim Y.; Seelenfreund, Daniela; Lobos, Sergio; Polanco, Rubén; Tello, Mario; Honda, Yoichi; Watanabe, Takahito; Watanabe, Takashi; Ryu, Jae San; Kubicek, Christian P.; Schmoll, Monika; Gaskell, Jill; Hammel, Kenneth E.; St. John, Franz J.; Wymelenberg, Amber Vanden; Sabat, Grzegorz; BonDurant, Sandra Splinter; Syed, Khajamohiddin; Yadav, Jagjit S.; Dodapaneni, Harshavardhan; Subramanian, Venkataramanan; Lavin,José L.; Oguiza, José A.; Perez, Gumer; Pisabarro, Antonio G.; Ramirez, Lucia; Santoyo, Francisco; Master, Emma; Coutinho, Pedro M.; Henrissat, Bernard; Lombard, Vincent; Magnuson, Jon Karl; Kües, Ursula; Hori, Chiaki; Igarashi, Kiyohiko; Samejima, Masahiro; Held, Benjamin W.; Barry, Kerrie W.; LaButti, Kurt M.; Lapidus, Alla; Lindquist, Erika A.; Lucas, Susan M.; Riley, Robert; Salamov, Asaf A.; Hoffmeister, Dirk; Schwenk, Daniel; Hadar, Yitzhak; Yarden, Oded; de Vries, Ronald P.; Wiebenga, Ad; Stenlid, Jan; Eastwood, Daniel; Grigoriev, Igor V.; Berka, Randy M.; Blanchette, Robert A.; Kersten, Phil; Martinez, Angel T.; Vicuna, Rafael; Cullen, Daniel. 2012. Comparative genomics of Ceriporiopsis subvermispora and Phanerochaete chrysosporium provide insight into selective ligninolysis. Proceedings of the National Academy of Sciences. 109(14): 5458-5463.

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