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Updated: Nov 8, 2025

Plant-Microbe Interaction: Transcriptional Response of Bacillus Mycoides to Potato Root Exudates
Published on: July 2, 2018
Identification of laccase-like genes in ectomycorrhizal basidiomycetes and transcriptional regulation by nitrogen in
David M Chen1, Brigitte A Bastias1, Andrew F S Taylor2
1Mycorrhiza Research Group, Centre for Horticulture and Plant Sciences, Parramatta Campus, University of Western Sydney, Locked Bag 1797, Penrith South and NSW 1797, Australia.
Abstract:
• Ectomycorrhizal (ECM) fungi were screened for laccase-like genes by polymerase chain reaction (PCR) using primers for white rot fungal laccase genes, and expression of the genes was examined by reverse transcriptase polymerase chain reaction (RT-PCR) for Piloderma byssinum in axenic culture under different nutrient conditions. • Laccase-like genes were present in Rhizopogon roseolus along with several Russulales and Atheliaceae taxa, and showed strong nucleotide sequence similarity to laccase genes in white rot fungi. Multiple laccase-like genes were only identified in Piloderma spp. • Laccase-like genes were expressed in Piloderma spp., with transcript levels some six times higher under high nitrogen conditions in P. byssinum than when nitrogen availability was lower. • The potential roles of laccases in nutrient mobilization and/or differentiation of multihyphal ECM fungal structures are discussed.
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