Role of ethylene in the protection of tomato plants against soil-borne fungal pathogens conferred by an endophytic Fusarium solani strain

Kavroulakis, Nektarios; Ntougias, Spyridon; Zervakis, Georgios I.; Ehaliotis, Constantinos; Haralampidis, Kosmas; Papadopoulou, Kalliope Κ.

doi:10.1093/jxb/erm230

Cited by 145 publications

(91 citation statements)

References 66 publications

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“…In fact, many fungal endophytes are shown capable to produce a variety of extracellular metabolites responsible for the protection of their host plants from their associated pathogens (Meng et al, 2011;Zhang et al, 2014). Other previous studies demonstrated the ability of endophytic Fusarium species (such as F. solani and F. equiseti), isolated from healthy tomato root tissues, to colonize root tissues of cultivated tomato seedlings and to protect them from FORL infections (Horinouchi et al, 2007;Kavroulakis et al, 2007). Moreover F. proliferatum culture filtrates have significantly reduced lesion diameter on detached leaves of B. napus caused by Sclerotinia sclerotiorum (Zhang et al, 2014).…”

Section: Discussionmentioning

confidence: 98%

“…However, the exploration of endophytic fungi as biocontrol agents against this disease is rarely considered (Kavroulakis et al, 2007). Interestingly, some wild Solanum species have been explored as potential sources of bioactive molecules and biocontrol agents (Khan et al, 2015;Aydi Ben Abdallah et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…They are able to protect their associated host plants against various bio-aggressors and abiotic stresses (Backman and Sikora, 2008). In fact, such plant protection may be achieved by activation of its defense mechanisms (Kavroulakis et al, 2007) or by the inhibition of the pathogens, hence reducing the severity of incited diseases (Kuldeau and Bacon, 2008). These effects may be accomplished by various bioactive secondary metabolites including auxins (Vadassery et al, 2008) and indole derivatives (Strobel et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…Penicillium species EU0013 significantly decreased Fusarium wilt incidence (Alam et al, 2010) and F. equiseti GF191 successfully controlled FCRR disease by the secretion of antifungal compounds (Horinouchi et al, 2007). Endophytic Fusarium solani significantly limited root infection by FORL and subsequent disease development (Kavroulakis et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Investigation on biosuppression of Fusarium crown and root rot of tomato (Solanum lycopersicum L.) and growth promotion using fungi naturally associated to Solanum linnaeanum L.

Nefzi¹,

Abdallah²,

Jabnoun‐Khiareddine³

et al. 2018

Afr. J. Microbiol. Res.

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Fusarium crown and root rot (FCRR) is a serious tomato disease in Tunisia which is difficult to control due to its soilborne nature and to the luck of genetic resistance. In the current study, native Solanum linnaeanum was explored as potential source of effective fungal agents for disease biocontrol. Eight fungal isolates, recovered from S. linnaeanum plants growing in the Tunisian Centre-East and shown able to colonize roots, crowns and stems of tomato (Solanum lycopersicum L.) seedlings, were tested for their ability to inhibit Fusarium oxysporum f. sp. radicis-lycopersici (FORL), the causal agent of this disease, and to promote plant growth. Tomato seedlings inoculated or not with FORL and treated using tested fungal isolates, exhibited significant increments in their growth parameters. Tested as conidial suspensions or cell-free culture filtrates, I74 and I92 isolates were the most active leading to 92.8% decrease in FCRR severity and 89.3 to 95.2% lowered vascular browning extent as compared to FORLinoculated and untreated controls. These two isolates were microscopically and macroscopically described and identified using rDNA sequencing gene as being Penicillium crustosum I74 (MF188258) and Fusarium proliferatum I92 (MF188256). Pathogen mycelial growth was inhibited by 29.4 to 78.1% using their conidial suspensions and by 67.5 to 82% with their cell-free culture filtrates. P. crustosum I74 and F. proliferatum I92 showed chitinolytic, proteolytic and amylase activities. Only I92 isolate exhibited a lipolytic activity. Our study clearly demonstrated that I74 and I92 isolates were promising candidates for suppressing FCRR severity and promoting tomato growth. Further investigations are required for elucidating their mechanisms of action involved in disease suppression and plant growth promotion.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation on biosuppression of Fusarium crown and root rot of tomato (Solanum lycopersicum L.) and growth promotion using fungi naturally associated to Solanum linnaeanum L.

Nefzi¹,

Abdallah²,

Jabnoun‐Khiareddine³

et al. 2018

Afr. J. Microbiol. Res.

View full text Add to dashboard Cite

show abstract

“…Fungal endophytes induced ISR may also associate with the expression of pathogenesisrelated genes. F. solani, isolated from the root tissues of tomato elicited induced systemic resistance against the tomato foliar pathogen, Septoria lycopersici and triggered PR genes, PR5 and PR7 expression in the roots (Kavroulakis et al 2007). …”

Section: Mechanism Of Endophyte Mediated Plant Disease Resistance Indmentioning

confidence: 99%