Involvement of the Salicylic Acid Signaling Pathway in the Systemic Resistance Induced in Arabidopsis by Plant Growth-Promoting Fungus Fusarium equiseti GF19-1

Kojima, Hanae; Hossain, Md. Motaher; Kubota, Mayumi; Hyakumachi, Mitsuro

doi:10.5650/jos.62.415

Cited by 22 publications

(14 citation statements)

References 37 publications

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“…Thus, the protective effect of GP15-1 against C. orbiculare seems to be plant-mediated. Studies have shown that PGPF and their CFs are highly effective in reducing the severity of a number of plant diseases by the induction of systemic resistance 12,21,40,41 . This indicates that PGPF secrete elicitor substances in their CFs.…”

Section: Discussionmentioning

confidence: 99%

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The Plant Growth-promoting Fungus Penicillium spp. GP15-1 Enhances Growth and Confers Protection against Damping-off and Anthracnose in the Cucumber

et al. 2014

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Section: Discussionmentioning

confidence: 99%

“…Plants were carefully uprooted from the potting medium at 0, 7, 14, and 21 d after planting. The collected root systems were thoroughly washed and cut into approximately 1-cm-long segments 21 . Root pieces were surface-sterilized with 0.25…”

Section: Testing For Root Colonization By Gp15-1mentioning

confidence: 99%

The Plant Growth-promoting Fungus Penicillium spp. GP15-1 Enhances Growth and Confers Protection against Damping-off and Anthracnose in the Cucumber

et al. 2014

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“…PGPF are non‐pathogenic, filamentous, saprophytic rhizosphere fungi that significantly enhance the growth of plants (Hyakumachi, ). PGPF from the genera of Fusarium , Penicillium , Phoma , Trichoderma and sterile fungi have been the subject of multiple studies because of their high protective abilities against a variety of plant diseases (Hossain & Sultana, ; Hossain, Sultana, Kubota, Koyama, & Hyakumachi, ; Kojima, Hossain, Kubota, & Hyakumachi, ; Shoresh et al., ; Sultana, Hossain, Kubota, & Hyakumachi, ). In recent years, several PGPF Penicillium spp.…”

Section: Introductionmentioning

confidence: 99%

Role of ethylene signalling in growth and systemic resistance induction by the plant growth‐promoting fungus Penicillium viridicatum in Arabidopsis

Hossain

Sultana

Hyakumachi

2017

Journal of Phytopathology

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The plant growth‐promoting fungi (PGPF) have long been known to improve plant growth and suppress plant diseases. The PGPF Penicillium viridicatum GP15‐1 elicited plant growth and induced systemic resistance (ISR) in Arabidopsis thaliana against Pseudomonas syringae pv. tomato DC3000 (Pst), leading to a restriction of pathogen growth and disease development. Examination of local and systemic genes indicated that GP15‐1 did not modulate the expression of any of the tested defence‐related marker genes involved in salicylic acid (SA), jasmonic acid (JA) and ethylene signalling pathways. Subsequent challenge of GP15‐1‐colonized plants with Pst bacterium primed Arabidopsis plants for enhanced activation of the JA‐inducible Atvsp (vegetative storage protein) gene at a later stage of infection. To assess the contribution of different signalling pathways in GP15‐1‐elicited plant growth and ISR, Arabidopsis genotypes implicated in SA signalling expressing the nahG transgene (NahG) or carrying disruption in NPR1 (npr1), JA signalling (jar1) and ethylene signalling (ein2) were tested. The GP15‐1‐induced plant growth and ISR were fully compromised in an ein2 mutation. Root colonization assay revealed that the inability of the ein2 mutant to express GP15‐1‐induced plant growth and ISR was not associated with reduced root colonization by GP15‐1. In conclusion, our results demonstrate the ethylene signalling pathway is involved in plant growth promotion and ISR elicitation by the PGPF P. viridicatum GP15‐1 in Arabidopsis. These results provide evidence that ethylene signalling has a substantial role in plant growth and disease resistance.

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“…This suggests a similarity in the temporal SA variation after an exogenous application and after a stress stimulus. Similarly, the inoculation of Fusarium equiseti in Arabidosis [28] and tobacco necrosis virus (TNV) [29], led to increments in the SA concentration in the leaves of seedlings. The peak SA concentration appeared 18 hours after the Fusarium inoculation and decreased on, while for TNV inoculation it showed up four days after inoculation, equaling the concentration of non inoculated plants eight days after inoculation, similarly to the observed in this assay.…”

Section: Change In the Concentration Over Time Of Salicylic Acid (Sa)mentioning

confidence: 99%

Concentration of Salicylic Acid in Tomato Leaves after Foliar Aspersions of This Compound

Guzman-Tellez¹,

Montenegro²,

Benavides-Mendoza³

2014

AJPS

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Increased plant tolerance to stress may be chemically induced with applications of salicylic acid (SA). The aim of this study was to determine the change in the SA leaf concentration over time in response to the SA spraying in leaves of greenhouse grown tomato. In sprayed leaves the SA concentration showed changes over time similar to the reported responses to environmental stress. Two days after the first application, the SA foliar concentration reached the maximum of 8 µg•g −1 , equivalent to twice the amount observed in the control plants. SA decreased until it reached the level of control plants eight days later. A second application showed actually the same response, but with a faster decline of SA in two days. According to the results of this assay, SA applications on tomato should be performed within a minimum interval of eight days in order to maintain the SA concentration related with the increase in plant tolerance to environmental stress.

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Involvement of the Salicylic Acid Signaling Pathway in the Systemic Resistance Induced in Arabidopsis by Plant Growth-Promoting Fungus Fusarium equiseti GF19-1

Cited by 22 publications

References 37 publications

The Plant Growth-promoting Fungus Penicillium spp. GP15-1 Enhances Growth and Confers Protection against Damping-off and Anthracnose in the Cucumber

The Plant Growth-promoting Fungus Penicillium spp. GP15-1 Enhances Growth and Confers Protection against Damping-off and Anthracnose in the Cucumber

Role of ethylene signalling in growth and systemic resistance induction by the plant growth‐promoting fungus Penicillium viridicatum in Arabidopsis

Concentration of Salicylic Acid in Tomato Leaves after Foliar Aspersions of This Compound

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