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Cloning and expression analysis of a new hydrophobin cDNA from the ectomycorrhizal basidiomycete Pisolithus

Abstract : Hydrophobins are fungal cell wall proteins which play a crucial role in cell adhesion and aggregative processes. We have identi®ed a new hydrophobin cDNA (hydPt-3) in the symbiotic mycelium of Pisolithus tinctorius (putative P. albus) during the formation of ectomycorrhizae around eucalypt roots. This sequence is highly divergent from two other previously identi®ed Pisolithus symbiosis-regulated hydrophobins, hydPt-1 and hydPt-2. Also, expression analyses demonstrated that hydPt-3 is up-regulated during the formation of ectomycorrhizae. In contrast to phytopathogenic fungi, changes in glucose or ammonium concentrations in the growth medium did not in¯uence the accumulation of any Pisolithus hydrophobin mRNAs. This suggests that other factors act as regulators of hydrophobin gene expression in ectomycorrhizae.
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https://hal.inrae.fr/hal-02915287
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Submitted on : Friday, August 14, 2020 - 9:29:29 AM
Last modification on : Thursday, January 7, 2021 - 3:40:30 PM

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Sébastien Duplessis, Céline Sorin, Catherine Voiblet, Béatrice Palin, Francis Martin, et al.. Cloning and expression analysis of a new hydrophobin cDNA from the ectomycorrhizal basidiomycete Pisolithus. Current Genetics, Springer Verlag, 2001, ⟨10.1007/s002940100224⟩. ⟨hal-02915287⟩

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