scholarly journals Alterations in Root Exudation of Intercropped Tomato Mediated by the Arbuscular Mycorrhizal Fungus G lomus mosseae and the Soilborne Pathogen F usarium oxysporum f.sp. lycopersici

2013 ◽  
Vol 161 (11-12) ◽  
pp. 763-773 ◽  
Author(s):  
Karin Hage‐Ahmed ◽  
Anna Moyses ◽  
Andreas Voglgruber ◽  
Franz Hadacek ◽  
Siegrid Steinkellner
Keyword(s):  
Arbuscular Mycorrhizal Fungus ◽  
Root Exudation ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Soilborne Pathogen

An altered root exudation pattern through mycorrhization affecting microconidia germination of the highly specialized tomato pathogen Fusarium oxysporum f. sp. lycopersici (Fol) is not tomato specific but also occurs in Fol nonhost plants

2007 ◽  
Vol 85 (3) ◽  
pp. 347-352 ◽  
Author(s):  
Stephan Scheffknecht ◽  
Marc St-Arnaud ◽  
Thanasan Khaosaad ◽  
Siegrid Steinkellner ◽  
Horst Vierheilig
Keyword(s):  
Fusarium Oxysporum ◽  
Root Exudates ◽  
Glomus Mosseae ◽  
Arbuscular Mycorrhizal Fungus ◽  
Root Exudation ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Tomato Pathogen

The effect of root exudates from plants colonized or noncolonized by the arbuscular mycorrhizal fungus Glomus mosseae on microconidia germination of Fusarium oxysporum f. sp. lycopersici (Fol) was studied. Root exudates from the Fol-host tomato and root exudates from Fol nonhost plants were tested. Root exudates from all tested plants stimulated microconidia germination. Mycorrhization increased the stimulatory effect exhibited by the root exudates from the Fol host tomato and from all Fol nonhost plants, showing that similar changes occur in the root exudates of all plants after mycorrhization.

scholarly journals The methylome of the model arbuscular mycorrhizal fungus, Rhizophagus irregularis, shares characteristics with early diverging fungi and Dikarya

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Anurag Chaturvedi ◽  
Joaquim Cruz Corella ◽  
Chanz Robbins ◽  
Anita Loha ◽  
Laure Menin ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Plant Species ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal Fungus ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Rhizophagus Irregularis ◽  
Functional Differences ◽  
Phosphate Regulation ◽  
Very High

AbstractEarly-diverging fungi (EDF) are distinct from Dikarya and other eukaryotes, exhibiting high N6-methyldeoxyadenine (6mA) contents, rather than 5-methylcytosine (5mC). As plants transitioned to land the EDF sub-phylum, arbuscular mycorrhizal fungi (AMF; Glomeromycotina) evolved a symbiotic lifestyle with 80% of plant species worldwide. Here we show that these fungi exhibit 5mC and 6mA methylation characteristics that jointly set them apart from other fungi. The model AMF, R. irregularis, evolved very high levels of 5mC and greatly reduced levels of 6mA. However, unlike the Dikarya, 6mA in AMF occurs at symmetrical ApT motifs in genes and is associated with their transcription. 6mA is heterogeneously distributed among nuclei in these coenocytic fungi suggesting functional differences among nuclei. While far fewer genes are regulated by 6mA in the AMF genome than in EDF, most strikingly, 6mA methylation has been specifically retained in genes implicated in components of phosphate regulation; the quintessential hallmark defining this globally important symbiosis.

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