Control of table grape storage rots by pre-harvest applications of salts

Nigro, Franco; Schena, Leonardo; Ligorio, Angela; Pentimone, Isabella; Ippolito, Antonio; Salerno, M.

doi:10.1016/j.postharvbio.2006.06.005

Cited by 113 publications

(82 citation statements)

References 35 publications

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“…DePasquale and reported that elevated extracellular pH alone, was not responsible for the antifungal activity of ammonium bicarbonate against F. graminearum. Previous studies on other plant-pathogen interactions indicated that pH of salt solutions has a minor role in the mode of action (Mecteau et al 2002;Nigro et al 2006).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of antifungal activity of food additives against soilborne phytopathogenic fungi

Arslan

İlhan

Vardar

et al. 2008

World J Microbiol Biotechnol

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The efficacy of eight food additives as possible alternatives to synthetic fungicides for the control of soilborne pathogens, Fusarium oxysporum f. sp. melonis, Macrophomina phaseolina, Rhizoctonia solani, and Sclerotinia sclerotiorum was evaluated in this study. A preliminary selection of food additives was performed through in vitro tests. The ED 50 , minimum inhibition concentration (MIC), and minimum fungicidal concentration (MFC) values showed that ammonium bicarbonate and potassium sorbate were more toxic to soilborne pathogens compared to other food additives with few exceptions and, therefore selected for further testing in soil. The inhibitory and fungistatic efficacy potassium sorbate were higher than that of ammonium bicarbonate in in vitro tests. Potassium sorbate completely inhibited F. oxysporum f. sp. melonis, M. phaseolina, and R. solani at 0.6% in soil tests. In contrast ammonium bicarbonate at 0.6% was inferior compared to potassium sorbate. Ammonium bicarbonate achieved to control all fungi at 2% that is the highest concentration used in this study. Potassium sorbate showed higher toxicity to all fungi compared to ammonium bicarbonate in soil tests. Both ammonium bicarbonate and potassium sorbate increased the pH of soil. The rate of pH increase was higher in ammonium bicarbonate.

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Section: Resultsmentioning

confidence: 99%

Evaluation of antifungal activity of food additives against soilborne phytopathogenic fungi

Arslan

İlhan

Vardar

et al. 2008

World J Microbiol Biotechnol

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“…Thus accumulation of endogenous and cisgenic VVTL-1 in berries during the developmental phase may result in a high degree of rot resistance against fungal pathogens. Fruit rots are an important problem in grape storage and marketing (Nigro et al 2006). Development of rot resistant berries offers a practical alternative for extending shelf-life where field applications of fungicides are ineffective and post-harvest treatment is not adequate (Nigro et al 2006).…”

Section: Discussionmentioning

confidence: 99%

Grapevines engineered to express cisgenic Vitis vinifera thaumatin-like protein exhibit fungal disease resistance

Dhekney

Gray

2011

In Vitro Cell.Dev.Biol.-Plant

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Cisgenic engineering involves isolation and modification of genetic elements from the host genome, which are reinserted to develop plant varieties with improved characteristics. As a first step toward production of fungal-disease resistant cisgenic grapevines, the Vitis vinifera thaumatin-like protein (vvtl-1) gene was isolated from "Chardonnay" and reengineered for constitutive expression. Embryogenic cultures of "Thompson Seedless" were initiated from leaves and transformed with Agrobacterium to regenerate cisgenic VVTL-1 plants. Cisgene presence and copy number were confirmed by PCR and quantitative real-time PCR. Protein expression was measured using ELISA. Among the plant lines tested, two exhibited a 7-10 day delay in powdery mildew disease development during greenhouse screening and decreased severity of black rot disease in field tests. Berries exhibited a 42.5% reduction in sour-bunch rot disease incidence compared to non-transformed controls after 3 wk of storage at room temperature. Although plants recovered in this study contain viral promoters and reporter/ marker genes, this is the first report of a cisgenic approach to obtain broad-spectrum fungal-disease resistance in genetically engineered grapevine.

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“…These results are consistent with other studies demonstrating that suppression of microbial strains varies in response to different organic and inorganic salts Olivier et al and Fagundes et al, [17,35] show that the percentage of fungal inhibition in amended PDA medium was dependent on concentration used, and that the most significant decrease in mycelial growth was obtained with the highest concentration of salt tested. In fact, the effectiveness of potassium salts in controlling various plant pathogens have been previously reported [18,[36][37][38][39][40]. The mode of action of most salts is postulated to consist in a reduction of fungal turgor pressure that results in the collapse and shrinkage of fungal hyphae causing subsequent inhibition of mycelia growth and sporulation [23,41].…”

Section: Discussionmentioning

confidence: 99%

“…However, PB was found to be ineffective against most tomato fruit rot pathogens even though bicarbonates were reported possess wide-spectrum antimicrobial properties; their efficacy in controlling postharvest fungal phytopathogens has been widely reported [17,[20][21][22]35,37,41,80].…”

Section: Vd Fol Forlmentioning

confidence: 99%

Comparative Efficacy of Potassium Salts Against Soil-borne and Air-borne Fungi and Their Ability to Suppress Tomato Wilt and Fruit Rots

Jabnoun‐Khiareddine¹,

Abdallah²,

El-Mohamedy³

et al. 2016

J Microb Biochem Technol

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Control of table grape storage rots by pre-harvest applications of salts

Cited by 113 publications

References 35 publications

Evaluation of antifungal activity of food additives against soilborne phytopathogenic fungi

Evaluation of antifungal activity of food additives against soilborne phytopathogenic fungi

Grapevines engineered to express cisgenic Vitis vinifera thaumatin-like protein exhibit fungal disease resistance

Comparative Efficacy of Potassium Salts Against Soil-borne and Air-borne Fungi and Their Ability to Suppress Tomato Wilt and Fruit Rots

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