Antifungal activity of aluminium‐containing salts against the development of carrot cavity spot and potato dry rot

Kolaei, E.A.; Cenatus, C.; Tweddell, Russell J.; Avis, Tyler J.

doi:10.1111/aab.12056

Cited by 35 publications

(25 citation statements)

References 31 publications

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“…The synergistic effect of alum with various extracts was phenomenal and apparently visible by enhancement of bioactivity which corroborates earlier studies on other medicinal plants (Bnyan et al, 2014;Amadi et al, 2016;. The properties of alum such as astringency and acidification in solution has potentiated its activity not only on bacteria but on fungi as well (Ahmed, 2011;Kolaei et al, 2013;Amadi and Ngerebara, 2017). The sensitivity of these pathogens to these extracts validates their use for traditional medicine and herbal medicinal products.…”

Section: Discussionsupporting

confidence: 85%

“…The relatively low MIC levels of the crude extracts (between < 0.05 and 0.2mg/ml) that caused growth inhibition of test bacteria underscores the need to further explore the antimicrobial potentials in G. latifolium. Bioactivity of alum on a variety of microorganisms and as drug has been well documented (Kolaei et al, 2013;Al-Talib et al, 2016;Amadi and Ngerebara, 2017;Ali et al, 2017). The synergistic effect of alum with various extracts was phenomenal and apparently visible by enhancement of bioactivity which corroborates earlier studies on other medicinal plants (Bnyan et al, 2014;Amadi et al, 2016;.…”

Section: Discussionmentioning

confidence: 99%

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Profilistic Study of Bioactivities of Extracts of Gongronema latifolium Incorporated with Alum on some Clinical Bacteria

2018

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Profilistic study of bioactivities of aqueous, ethanolic and methanolic leaf extracts of Gongronema latifolium in combination with potassium aluminium sulphate (Alum) against some clinical bacterial pathogens were investigated by disc diffusion (DD) and Agar well diffusion (AWD) methods respectively. The leaf extracts at concentrations of 0.1-0.3g were reconstituted in sterile distilled water as well as 1.0-3.0g of alum prior to application. In-vitro bioactivity of various concentrations of the extracts and in combination with alum were evaluated by measuring diameter of inhibition zones (DIZs) respectively. Methanolic leaf extract (MLE) had the largest mean DIZs of 14.5±0.5 and 11.5±0.0mm on Escherichia coli and Salmonella typhi, with enhanced bioactivity of 19.5±0.7 and 17.5±0.7mm with alum against Bacillus subtilis, Sal. typhi and Pseudomonas aeruginosa by DD and AWD methods respectively. However, aqueous leaf extract (ALE) and ethanolic leaf extract (ELE) and their combinations depicted appreciable antibacterial activity on the pathogens but incomparable to MLE. Generally, there was enhancement of bioactivties with the incorporation of Alum to the leaf extracts (irrespective of solvent of extraction) on a dose response fashion particularly by AWD method. Furthermore, the low MIC values of <0.05 to 0.2mg/ml on the bacteria with MLE and ALE, validates their potency and broad spectrum activity. In contrast, the very large DIZs of Ciprofloxacin (CP) reflects the beneficial impact of purified chemotherapeutics against pathogens. Thus, the improved efficacy of these extracts with alum would justify future application in ethnomedicine as well as in nutraceuticals/pharmaceuticals or in food systems as “green chemicals” or “biopreservatives”.International Current Pharmaceutical Journal, October 2018, 6(12): 92-98

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Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Profilistic Study of Bioactivities of Extracts of Gongronema latifolium Incorporated with Alum on some Clinical Bacteria

2018

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“…There is an increasing interest on the activity of allelopathic compounds isolated from plants and their use as alternatives to synthetic fungicides [7]. Such a shift in the research field came from the development of resistance of many pathogens to synthetic fungicides [8][9][10] and their negative effect on beneficial organisms [11].…”

Section: Introductionmentioning

confidence: 99%

Mentha and Oregano Soil Amendment Induces Enhancement of Tomato Tolerance against Soilborne Diseases, Yield and Quality

et al. 2020

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Tomato is considered among the most important horticulture crops in both temperate and tropical regions, and two of the major biotic stresses include Fusarium oxysporun f.sp. lycopersici (Fol) and Verticillium dahliae (Vd). The effect of soil incorporated spearmint and oregano dried plant material on physiological, yield and quality parameters of tomato, along with their efficacy against soilborne fungal diseases, was studied in pot experiments conducted in a greenhouse environment. Tomato plants grown in soil amended with spearmint or oregano showed better agronomical characteristics (taller plants with thicker stems) and improved physiological ones (higher chlorophyll content index and photosynthetic rate). Yield was increased and the qualitative features of tomato fruits were enhanced. In addition, plants grown in soil amended with spearmint or oregano and inoculated with Fol or Vd had no visual disease symptoms 50 days from the inoculated tomato transplantation, except from plants grown in soil amended with oregano and inoculated with Fol, which showed symptoms of chlorosis and leaves loss. These enhancements on physiological parameters and on disease suppression resulted in increased fruit yields of plants–grown in soil amended with spearmint and oregano and inoculated with Fol or Vd–by 77%–95% compared with free-disease controls. GC-MS analysis of volatiles derived from soils amended of either spearmint or oregano indicated that several constituents remained in the soil environment long after incorporation of plant material, although, at lower concentrations and considerable modified. The current study reveals that direct incorporation of spearmint or oregano plant material into the soil could improve tomato tolerance against soilborne fungi, soil fertility and consequently increase yield and product quality.

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“…Soil acidity and associated Al toxicity and low concentrations of exchangeable bases are usually the most important limiting factors for agricultural yield in wet tropical regions (Ryan et al 2011;Ding et al 2014). Al-containing salts have also been tested as an alternative to the use of synthetic chemical fungicides to control plant disease (Kolaei et al 2013). Most Al in soils is in the mineral form and only a relatively small portion is released into the soil solution.…”

Section: Introductionmentioning

confidence: 99%

Tropical soils cultivated with tomato: fractionation and speciation of Al

Nogueirol

Monteiro

Azevedo

2015

Environ Monit Assess

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Soil acidity and the associated problems of aluminum (Al) toxicity and scarce exchangeable bases are typically the most important limiting factors of agricultural yield in wet tropical regions. The goals of this study were to test how soil lime rates affect the forms and distribution of Al in the soil fractions and how different levels of bioavailable Al affect two tomato genotypes grown in wet tropical soils. The tomato genotypes CNPH 0082 and Calabash Rouge were grown in two wet tropical soils in a greenhouse. Soil lime rates of 0, 560, and 2240 mg kg(-1) soil (clay soil) and 0, 280, and 1120 mg kg(-1) soil (sandy soil) were applied to modify Al concentrations. Dry mass production and Al concentrations were determined in shoots and roots. Al was fractionated in the soil, and the soil solution was speciated after cultivation. The Calabash Rouge genotype possesses mechanisms to tolerate Al3+, absorbed less Al, exhibited smaller reduction in growth, and lower Al concentrations in plant parts than the CNPH 0082. Increased soil pH reduced the exchangeable Al fraction and increased the fraction mainly linked to organic matter. Al in the soil in the form of complexes with organic compounds and Al(SO4)+ (at the highest lime rate) did not affect plant development. Soil acidity can be easily neutralized by liming the soil, which transforms toxic Al3+ in the soil into forms that do not harm tomato plants, thereby avoiding oxidative stress in the plants. Al-induced stress in tomatoes varies with genotypes and soil type.

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Antifungal activity of aluminium‐containing salts against the development of carrot cavity spot and potato dry rot

Cited by 35 publications

References 31 publications

Profilistic Study of Bioactivities of Extracts of Gongronema latifolium Incorporated with Alum on some Clinical Bacteria

Profilistic Study of Bioactivities of Extracts of Gongronema latifolium Incorporated with Alum on some Clinical Bacteria

Mentha and Oregano Soil Amendment Induces Enhancement of Tomato Tolerance against Soilborne Diseases, Yield and Quality

Tropical soils cultivated with tomato: fractionation and speciation of Al

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