BIOLOGICAL CONTROL OF F. OXYSPORUM f. sp. LYCOPERSICI CAUSING WILT OF TOMATO BY PSEUDOMONAS FLUORESCENS

BB, ASHA; S, CHANDRA NAYAKA; AC, UDAYA SHANKAR; Srinivas, C.; SR, NIRANJANA

doi:10.9735/0975-5276.3.2.79-84

Cited by 21 publications

(1 citation statement)

References 24 publications

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“…However, owing to the long cultivation cycle of banana and the rapid evolution of Foc , few resistant cultivars have been used in the field to date (Ploetz, 2015). Considerable interest is therefore focused on the exploitation of naturally occurring organisms, such as nonpathogenic F. oxysporum, Burkholderia cenocepacia, Bacillus amyloliquefaciens , and Streptomyces albospinus for the control of crop diseases including FWB (Postma and Rattink, 1992; Raguchander et al, 1997; Butt et al, 2001; Fravel et al, 2003; Cao et al, 2005; Asha et al, 2011a,b; Wang et al, 2013; Ho et al, 2015). Furthermore, many antifungal secondary metabolites have been identified from plants and microorganism (Paiva et al, 2010; Coleman et al, 2011), and the identification of novel antifungal targets for use as control agents is currently becoming an important strategy (De Backer and Van Dijck, 2003; Walsh et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

RNA Sequencing Reveals that Endoplasmic Reticulum Stress and Disruption of Membrane Integrity Underlie Dimethyl Trisulfide Toxicity against Fusarium oxysporum f. sp. cubense Tropical Race 4

et al. 2017

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Fusarium wilt of banana, a destructive disease that affects banana production, is caused by Fusarium oxysporum f. sp. cubense tropical race 4 (Foc TR4). In a previous study, we confirmed the strong inhibitory effects of Chinese leek (Allium tuberosum) on the incidence of this disease. Sulfur compounds are the primary antifungal constituents of Chinese leek. Among these, dimethyl trisulfide (DT) was the most abundant and exhibited the strongest inhibition of Foc TR4 growth and development. In the present study, the global gene expression profiles of Foc TR4 isolates treated with DT at 4,000-folds dilution (concentration of 1/4,000, v/v) for 1.5, 6, and 12 h were investigated by using RNA sequencing. The expression patterns of 15 DEGs were validated based on quantitative real-time PCR (qRT-PCR) assay. Untreated sample presented 2,556, 1,691, and 1,150 differentially expressed genes (DEGs) at 1.5, 6, and 12 h after the onset of the experiment, respectively, whereas DT-treated isolates presented 2,823, 3,546, and 6,197 DEGs. Based on Gene Ontology (GO) annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis, DEGs involved in endoplasmic reticulum (ER), glycosylation, and steroid biosynthesis were significantly inhibited by DT exposure. The similar expressional patterns of 15 DEGs between RNA-seq and qRT-PCR assays indicated the reliability of the RNA-seq data. In conclusion, ER stress related to glycosylation inhibition and damage to cell membrane integrity might contribute to the toxicity of DT against Foc TR4. As the results presented here evidenced changes in gene expression associated with DT exposure, which might be used to develop new approaches for controlling FWB.

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Section: Introductionmentioning

confidence: 99%

RNA Sequencing Reveals that Endoplasmic Reticulum Stress and Disruption of Membrane Integrity Underlie Dimethyl Trisulfide Toxicity against Fusarium oxysporum f. sp. cubense Tropical Race 4

et al. 2017

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Seed treatments to control seedborne fungal pathogens of vegetable crops

2013

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Vegetable crops are frequently infected by fungal pathogens, which can include seedborne fungi. In such cases, the pathogen is already present within or on the seed surface, and can thus cause seed rot and seedling damping-off. Treatment of vegetable seeds has been shown to prevent plant disease epidemics caused by seedborne fungal pathogens. Furthermore, seed treatments can be useful in reducing the amounts of pesticides required to manage a disease, because effective seed treatments can eliminate the need for foliar application of fungicides later in the season. Although the application of fungicides is almost always effective, their non-target environmental impact and the development of pathogen resistance have led to the search for alternative methods, especially in the past few years. Physical treatments that have already been used in the past and treatments with biopesticides, such as plant extracts, natural compounds and biocontrol agents, have proved to be effective in controlling seedborne pathogens. These have been applied alone or in combination, and they are widely used owing to their broad spectrum in terms of disease control and production yield. In this review, the effectiveness of different seed treatments against the main seedborne pathogens of some important vegetable crops is critically discussed.

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Combination of endophytic Bacillus and Beauveria for the management of Fusarium wilt and fruit borer in tomato

2014

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BIOLOGICAL CONTROL OF F. OXYSPORUM f. sp. LYCOPERSICI CAUSING WILT OF TOMATO BY PSEUDOMONAS FLUORESCENS

Cited by 21 publications

References 24 publications

RNA Sequencing Reveals that Endoplasmic Reticulum Stress and Disruption of Membrane Integrity Underlie Dimethyl Trisulfide Toxicity against Fusarium oxysporum f. sp. cubense Tropical Race 4

RNA Sequencing Reveals that Endoplasmic Reticulum Stress and Disruption of Membrane Integrity Underlie Dimethyl Trisulfide Toxicity against Fusarium oxysporum f. sp. cubense Tropical Race 4

Seed treatments to control seedborne fungal pathogens of vegetable crops

Combination of endophytic Bacillus and Beauveria for the management of Fusarium wilt and fruit borer in tomato

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