The TOR signaling pathway regulates vegetative development and virulence in Fusarium graminearum

© 2014 The Authors. New Phytologist © 2014 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 203(2014), 1 vom: 30. Juli, Seite 219-32
1. Verfasser: Yu, Fangwei (VerfasserIn)
Weitere Verfasser: Gu, Qin, Yun, Yingzi, Yin, Yanni, Xu, Jin-Rong, Shim, Won-Bo, Ma, Zhonghua
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Fusarium graminearum Fusarium head blight (FHB) hyphal growth secondary metabolism sexual and asexual development target of rapamycin (TOR) pathway virulence Trichothecenes mehr... TOR Serine-Threonine Kinases EC 2.7.11.1 Tacrolimus Binding Protein 1A EC 5.2.1.- deoxynivalenol JT37HYP23V Sirolimus W36ZG6FT64
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520 |a The target of rapamycin (TOR) signaling pathway plays critical roles in controlling cell growth in a variety of eukaryotes. However, the contribution of this pathway in regulating virulence of plant pathogenic fungi is unknown. We identified and characterized nine genes encoding components of the TOR pathway in Fusarium graminearum. Biological, genetic and biochemical functions of each component were investigated. The FgFkbp12-rapamycin complex binds to the FgTor kinase. The type 2A phosphatases FgPp2A, FgSit4 and FgPpg1 were found to interact with FgTap42, a downstream component of FgTor. Among these, we determined that FgPp2A is likely to be essential for F. graminearum survival, and FgSit4 and FgPpg1 play important roles in cell wall integrity by positively regulating the phosphorylation of FgMgv1, a key MAP kinase in the cell wall integrity pathway. In addition, the FgPpg1 interacting protein, FgTip41, is involved in regulating mycelial growth and virulence. Notably, FgTip41 does not interact with FgTap42 but with FgPpg1, suggesting the existence of FgTap42:FgPpg1:FgTip41 heterotrimer in F. graminearum, a complex not observed in the yeast model. Collectively, we defined a genetic regulatory framework that elucidates how the TOR pathway regulates virulence and vegetative development in F. graminearum 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Fusarium graminearum 
650 4 |a Fusarium head blight (FHB) 
650 4 |a hyphal growth 
650 4 |a secondary metabolism 
650 4 |a sexual and asexual development 
650 4 |a target of rapamycin (TOR) pathway 
650 4 |a virulence 
650 7 |a Trichothecenes  |2 NLM 
650 7 |a TOR Serine-Threonine Kinases  |2 NLM 
650 7 |a EC 2.7.11.1  |2 NLM 
650 7 |a Tacrolimus Binding Protein 1A  |2 NLM 
650 7 |a EC 5.2.1.-  |2 NLM 
650 7 |a deoxynivalenol  |2 NLM 
650 7 |a JT37HYP23V  |2 NLM 
650 7 |a Sirolimus  |2 NLM 
650 7 |a W36ZG6FT64  |2 NLM 
700 1 |a Gu, Qin  |e verfasserin  |4 aut 
700 1 |a Yun, Yingzi  |e verfasserin  |4 aut 
700 1 |a Yin, Yanni  |e verfasserin  |4 aut 
700 1 |a Xu, Jin-Rong  |e verfasserin  |4 aut 
700 1 |a Shim, Won-Bo  |e verfasserin  |4 aut 
700 1 |a Ma, Zhonghua  |e verfasserin  |4 aut 
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773 1 8 |g volume:203  |g year:2014  |g number:1  |g day:30  |g month:07  |g pages:219-32 
856 4 0 |u http://dx.doi.org/10.1111/nph.12776  |3 Volltext 
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