Regulation of proteinaceous effector expression in phytopathogenic fungi
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Effectors are molecules used by microbial pathogens to facilitate infection via effector-triggered susceptibility or tissue necrosis in their host. Much research has been focussed on the identification and elucidating the function of fungal effectors during plant pathogenesis. By comparison, knowledge of how phytopathogenic fungi regulate the expression of effector genes has been lagging. Several recent studies have illustrated the role of various transcription factors, chromosome-based control, effector epistasis, and mobilisation of endosomes within the fungal hyphae in regulating effector expression and virulence on the host plant. Improved knowledge of effector regulation is likely to assist in improving novel crop protection strategies.
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A functionally conserved Zn2 Cys6 binuclear cluster transcription factor class regulates necrotrophic effector gene expression and host-specific virulence of two major Pleosporales fungal pathogens of wheat.Rybak, K.; See, Pao Theen; Phan, Huyen Phan; Syme, Robert; Moffat, Caroline; Oliver, Richard; Tan, Kar-Chun (2017)The fungus Parastagonospora nodorum is the causal agent of Septoria nodorum blotch of wheat (Triticum aestivum). The interaction is mediated by multiple fungal necrotrophic effector-dominant host sensitivity gene interactions. ...
A specific fungal transcription factor controls effector gene expression and orchestrates the establishment of the necrotrophic pathogen lifestyle on wheatJones, Darcy; John, Evan ; Rybak, Kasia; Phan, Huyen T. T. ; Singh, Karam ; Lin, S.Y.; Solomon, P.S.; Oliver, Richard ; Tan, Kar-Chun (2019)The fungus Parastagonospora nodorum infects wheat through the use of necrotrophic effector (NE) proteins that cause host-specific tissue necrosis. The Zn Cys transcription factor PnPf2 positively regulates NE gene ...
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