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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/19788

Title: Identification of genes differentially expressed during the interaction between the plant symbiont Suillus luteus and two plant pathogenic allopatric Heterobasidion species
Authors: Sillo, F.
Zampieri, E.
Giordano, L.
Lione, Gianni
Colpaert, Jan
Balestrini, R.
Gonthier, P.
Issue Date: 2015
Abstract: The effects of biological invasions by non-native species have been widely studied in terms of environmental, economic, and human health impacts. However, little is known about the consequences that non-native plant pathogens may determine on host plant symbionts, such as ectomycorrhizal (ECM) fungi. In this study, interactions between Suillus luteus, an ECM fungus of pine trees, and the allopatrically differentiated fungal pathogens of pines Heterobasidion irregulare and H. annosum were investigated in dual culture by morphological and gene expression analyses. Growth of S. luteus was inhibited by both Heterobasidion species, but based on statistical analysis, growth inhibition was due to the isolate rather than to the species. The expression analysis on genes related to cell wall hydrolytic enzymes and hydrophobins, putatively involved in the fungus-fungus interaction, allowed to identify significantly up- and down-regulated genes both in the symbiont and in the pathogens. Based on the transcript analysis, it was not possible to distinguish the impact of the two pathogenic species on the ECM fungus. The only exception was a S. luteus gene coding for a putative chitinase (SlGH18_8356) that was found to be differentially regulated during interaction with H. irregulare compared to H. annosum.
Notes: [Sillo, F.; Zampieri, E.; Giordano, L.; Lione, G.; Gonthier, P.] Univ Torino, Dept Agr Forest & Food Sci DISAFA, I-10095 Grugliasco, TO, Italy. [Colpaert, J. V.] Hasselt Univ, Ctr Environm Sci CMK, B-3590 Diepenbeek, Belgium. [Balestrini, R.] CNR, Torino Unit, Inst Sustainable Plant Protect, I-10125 Turin, Italy.
URI: http://hdl.handle.net/1942/19788
DOI: 10.1007/s11557-015-1130-3
ISI #: 000362951900009
ISSN: 1617-416X
Category: A1
Type: Journal Contribution
Validation: ecoom, 2016
Appears in Collections: Research publications

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