scholarly journals Survival of Passalora fulva during winter in tomato cultivation under rain shelter

2017 ◽  
Vol 59 (0) ◽  
pp. 67-69
Author(s):  
Hideki Watanabe ◽  
Yasunori Muramoto ◽  
Hirotsugu Tsueda ◽  
Akio Futamura
Keyword(s):  
Passalora Fulva

Leaf mold of tomato caused by races 4 and 4.11 of Passalora fulva in Japan

2005 ◽  
Vol 71 (6) ◽  
pp. 436-437 ◽  
Author(s):  
Mamoru Satou ◽  
Tsuyoshi Shinozaki ◽  
Kazufumi Nishi ◽  
Masaharu Kubota
Keyword(s):  
Leaf Mold ◽  
Passalora Fulva

scholarly journals Detection of Passalora fulva, the pathogen of tomato leaf mold using PCR with specific primers

2014 ◽  
Vol 56 (0) ◽  
pp. 91-93
Author(s):  
Hideki Watanabe ◽  
Yasunori Muramoto ◽  
Masatoshi Adachi ◽  
Motoyuki Yajima
Keyword(s):  
Tomato Leaf ◽  
Specific Primers ◽  
Leaf Mold ◽  
Passalora Fulva ◽  
Tomato Leaf Mold

The first occurrence of leaf mold of tomato caused by races 4.9 and 4.9.11 of Passalora fulva (syn. Fulvia fulva) in Japan

2008 ◽  
Vol 75 (1) ◽  
pp. 76-79 ◽  
Author(s):  
Junichiro Enya ◽  
Kentaro Ikeda ◽  
Taeko Takeuchi ◽  
Norio Horikoshi ◽  
Takahiko Higashi ◽  
...  
Keyword(s):  
Leaf Mold ◽  
Passalora Fulva ◽  
First Occurrence ◽  
Fulvia Fulva

scholarly journals Extracellular proteolytic cascade in tomato activates immune protease Rcr3

2020 ◽  
Vol 117 (29) ◽  
pp. 17409-17417 ◽  
Author(s):  
Judith K. Paulus ◽  
Jiorgos Kourelis ◽  
Selva Ramasubramanian ◽  
Felix Homma ◽  
Alice Godson ◽  
...  
Keyword(s):  
Fungal Pathogen ◽  
Low Ph ◽  
General Mechanism ◽  
Cladosporium Fulvum ◽  
Basal Resistance ◽  
Passalora Fulva ◽  
Proteolytic Cascade ◽  
Late Blight Disease ◽  
Blight Disease ◽  
Solanaceous Plants

Proteolytic cascades regulate immunity and development in animals, but these cascades in plants have not yet been reported. Here we report that the extracellular immune protease Rcr3 of tomato is activated by P69B and other subtilases (SBTs), revealing a proteolytic cascade regulating extracellular immunity in solanaceous plants. Rcr3 is a secreted papain-like Cys protease (PLCP) of tomato that acts both in basal resistance against late blight disease (Phytophthora infestans) and in gene-for-gene resistance against the fungal pathogenCladosporium fulvum (syn.Passalora fulva). Despite the prevalent model that Rcr3-like proteases can activate themselves at low pH, we found that catalytically inactive proRcr3 mutant precursors are still processed into mature mRcr3 isoforms. ProRcr3 is processed by secreted P69B and other Asp-selective SBTs in solanaceous plants, providing robust immunity through SBT redundancy. The apoplastic effector EPI1 ofP. infestanscan block Rcr3 activation by inhibiting SBTs, suggesting that this effector promotes virulence indirectly by preventing the activation of Rcr3(-like) immune proteases. Rcr3 activation inNicotiana benthamianarequires a SBT from a different subfamily, indicating that extracellular proteolytic cascades have evolved convergently in solanaceous plants or are very ancient in the plant kingdom. The frequent incidence of Asp residues in the cleavage region of Rcr3-like proteases in solanaceous plants indicates that activation of immune proteases by SBTs is a general mechanism, illuminating a proteolytic cascade that provides robust apoplastic immunity.

Characterization of tomato leaf mould pathogen, Passalora fulva, in Croatia

2021 ◽  
Author(s):  
Adrijana Novak ◽  
Jasenka Ćosić ◽  
Karolina Vrandečić ◽  
Draženka Jurković ◽  
Jelena Plavec ◽  
...  
Keyword(s):  
Tomato Leaf ◽  
Passalora Fulva ◽  
Tomato Leaf Mould

scholarly journals The Chitin-Binding Cladosporium fulvum Effector Protein Avr4 Is a Virulence Factor

2007 ◽  
Vol 20 (9) ◽  
pp. 1092-1101 ◽  
Author(s):  
H. Peter van Esse ◽  
Melvin D. Bolton ◽  
Ioannis Stergiopoulos ◽  
Pierre J. G. M. de Wit ◽  
Bart P. H. J. Thomma
Keyword(s):  
Cell Walls ◽  
Fungal Pathogens ◽  
Cladosporium Fulvum ◽  
Fungal Cell ◽  
Pathogen Virulence ◽  
Passalora Fulva ◽  
Tomato Leaf Mold ◽  
Defensive Activity ◽  
Plant Chitinases ◽  
Intrinsic Function

The biotrophic fungal pathogen Cladosporium fulvum (syn. Passalora fulva) is the causal agent of tomato leaf mold. The Avr4 protein belongs to a set of effectors that is secreted by C. fulvum during infection and is thought to play a role in pathogen virulence. Previous studies have shown that Avr4 binds to chitin present in fungal cell walls and that, through this binding, Avr4 can protect these cell walls against hydrolysis by plant chitinases. In this study, we demonstrate that Avr4 expression in Arabidopsis results in increased virulence of several fungal pathogens with exposed chitin in their cell walls, whereas the virulence of a bacterium and an oomycete remained unaltered. Heterologous expression of Avr4 in tomato increased the virulence of Fusarium oxysporum f. sp. lycopersici. Through tomato GeneChip analyses, we demonstrate that Avr4 expression in tomato results in the induced expression of only a few genes. Finally, we demonstrate that silencing of the Avr4 gene in C. fulvum decreases its virulence on tomato. This is the first report on the intrinsic function of a fungal avirulence protein that has a counter-defensive activity required for full virulence of the pathogen.

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