Phenotypic and molecular characterization of resistance induction by single and combined application of chitosan and silicon in tomato against Ralstonia solanacearum

Kiirika, Leonard Muriithi; Stahl, Frank; Wydra, Kerstin

doi:10.1016/j.pmpp.2012.11.002

Cited by 69 publications

(53 citation statements)

References 50 publications

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“…They concluded that the application of nanoscale fertilizers was found to be superior to bulk silica as soil amendment. Recently, Kiirika et al (2013) reported for the first time the synergistic effect of mixture of chitosansilica induced resistance in tomato against bacterial wilt caused by Ralstonia solanacearum [16]. To the best of our knowledge, no research on the effect of mixture of oligochitosannanosilica for plants has been reported yet.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Foliar Application of Oligochitosan - Nanosilica on the Enhancement of Soybean Seed Yield

Phú¹,

Du²,

Tuan³

et al. 2017

IJEAB

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Section: Introductionmentioning

confidence: 99%

Preparation and Foliar Application of Oligochitosan - Nanosilica on the Enhancement of Soybean Seed Yield

Phú¹,

Du²,

Tuan³

et al. 2017

IJEAB

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“…Silicon amendments were also reported to reduce the disease incidence in tomato when applied to soil (Dannon and Wydra, 2004;Diogo and Wydra, 2007;Kiirika et al, 2013). However, dual application of silicon and a rhizobacteria strain Bacillus pumilis against the disease was not effective as same as application of silicon alone in tomato (Kurabachew and Wydra, 2014).…”

Section: Silicon and Wilt Disease Bacterial Wiltmentioning

confidence: 99%

Role of Silicon on Enhancing Disease Resistance in Tropical Fruits and Vegetables: A Review

Weerahewa

Somapala

2016

OUSL Jnl

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Silicon (Si) has proven to enhance disease resistance in a wide range of tropical fruits and vegetables. It has been used in controlling various diseases: mildews, rots, moulds, wilt, blight, anthracnose and leaf spots. However, the highest number of records was available on reducing diseases of powdery mildews on fruits and vegetables belonging to the family Cucurbitaceae. Siliconmediated defense responses in plant pathosystems are mainly attributed to the physical resistance, which involves reduced penetrability and/or increased hardness and abrasiveness of plant tissues because of silica deposition. The main mechanism is the chemical resistance, which involves chemical defenses to pathogen attack through the enhanced production of defensive enzymes and the production of antifungal compounds such as phenolic metabolism products, phytoalexins and pathogenesis related proteins. Silicon has been applied as soluble silicates to the substrate or to soilless media at pre-harvest level on reducing disease susceptibility. Post-harvest dips of fresh produce in silicate solutions and use of Si combined with a biocontrol agent are other aspects of silicon application in controlling diseases in fruits and vegetables.

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“…The powder (100 mg) was homogenized and centrifuged at 12, 000 rpm for 10 min in 1 ml of TRIzol@ reagent (Sigma, Bangalore, India). The supernatant was again centrifuged in 200 µl of chloroform and treated with 1 ml of isoamyl alcohol and finally RNA was precipitated with ethanol [34]. cDNA was synthesized by reverse transcription reaction by following the manufacturer's instruction using cDNA synthesis kit (Thermo Scientific, Bangalore, India).…”

Section: Rt-pcr Studiesmentioning

confidence: 99%

Biochemical and Molecular Variations of Guaiacol Peroxidase and Total Phenols in Bacterial Wilt Pathogenesis of Solanum melongena

Prakasha¹,

Umesha²

2016

Biochem Anal Biochem

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Plants respond to bacterial pathogen attack by activating various defense responses, which are associated with the accumulation of several factors like defense-related enzymes and inhibitors which serve to prevent pathogen infection. The present study focused on the role of the defense-related enzyme and gene expression of Guaiacol preroxidase and Total phenol content in imparting activities was analyzed by selecting three different eggplant cultivars against bacterial wilt pathogen Ralstonia solanacearum. The temporal pattern of induction of these enzymes showed (42.72 U) maximum activity at 21 h after the pathogen inoculation (hpi) in resistant cultivars. The expressions of defense genes increased 5.5 folds in resistant eggplant cultivars after pathogen inoculation. The total phenol content increased significantly (P<0.05) in resistant cultivars upon pathogen inoculation compared to susceptible and highly susceptible cultivars. The biochemical and molecular markers provided an insight to understand the first line of defense responses in eggplant cultivars upon inoculation with the pathogen.

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Phenotypic and molecular characterization of resistance induction by single and combined application of chitosan and silicon in tomato against Ralstonia solanacearum

Cited by 69 publications

References 50 publications

Preparation and Foliar Application of Oligochitosan - Nanosilica on the Enhancement of Soybean Seed Yield

Preparation and Foliar Application of Oligochitosan - Nanosilica on the Enhancement of Soybean Seed Yield

Role of Silicon on Enhancing Disease Resistance in Tropical Fruits and Vegetables: A Review

Biochemical and Molecular Variations of Guaiacol Peroxidase and Total Phenols in Bacterial Wilt Pathogenesis of Solanum melongena

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