Antifungal activity of plants extracts against<i>Alternaria solani</i>, the causal agent of early blight of tomato

Ravikumar, Madhusudan; Garampalli, Rajkumar H.

doi:10.1080/03235408.2013.780350

Cited by 21 publications

(8 citation statements)

References 10 publications

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“…It was also reported that the ethyl acetate fraction had less antifungal activity than the chloroform fraction and n-hexane, n-butanol, aqueous fractions did not show antifungal activity. In the study conducted by Ravikumar and Garampalli [65] , it was determined that the antifungal activity ratio of Datura metel L. 4% aqueous extract was 21.30% and the antifungal activity rate of 2% aqueous extract was 6.66% against Alternaria solani. Anwar et al [66] determined that the aqueous extract of the devil's apple (Datura metel L.) decreased the growth of Alternaria alternata fungus by 9.41%.…”

Section: Resultsmentioning

confidence: 99%

THE ANTIFUNGAL EFFECTS OF DATURA STRAMONIUM L., D. METEL L. , D. INNOXIA Mill. IN FLORA OF TURKEY

Arık

2017

Mugla Journal of Science and Technology

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Section: Resultsmentioning

confidence: 99%

THE ANTIFUNGAL EFFECTS OF DATURA STRAMONIUM L., D. METEL L. , D. INNOXIA Mill. IN FLORA OF TURKEY

Arık

2017

Mugla Journal of Science and Technology

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“…Many plant and plant extracts have been reported to have antimicrobial properties against plant pathogenic fungi (Sharmin et al, 2013;Vergnes, 2014;Akladious et al, 2015;Santos et al, 2015). Allamanda species extract has been proved as effective in controlling plant pathogenic fungi (Islam, 2004;Ravikumar et al, 2013;Basar et al, 2011;Mone et al, 2013;Barros et al, 2015;Brito et al, 2018). However, there is a small report available in the studies on detailed analyzes of leaf extract and its antifungal activity against plant pathogens.…”

Section: Discussionmentioning

confidence: 99%

Extracts From Leaves of Allamanda blanchetti Inducing Mechanism of Defense to Diseases in Sugarcane

Oliveira¹,

Almeida²,

Silva³

et al. 2019

JAS

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This research aims to analyze the effect of the extract from a native plant from Caatinga, Allamanda blanchetti, in the induction of resistance mechanisms in a sugarcane variety smut-susceptible. Initially, it carried out a phytochemical analysis to know the main plant compounds used in this study. Diverse chemicals content in ethanolic extract from A. blanchetii were detected by thin-layer chromatography (TLC). Flavonoids, were more abundant compounds following by terpenes, stereroids and saponins. Under greenhouse conditions the sugarcane plants, SP-791011 (smut-susceptible), were sprayed with extracts from A. blanchetti extracted at cold at concentrations of 1000 ppm and acilbenzolar-S-metil (ASM) (100 mg/L). Leaves were collected at 0, 24 and 48 hours after spraying and used in the RT-PCR analysis for to identify the defense gene expression. Change in gene expression were observed in the different treatments, especially in the expression of pathogenesis-related (PR) genes. The extract of A. blanchetti induced an increase in the glucanase expression and was more effective than ASM inducer. SNPR1 gene show increased in the two treatment. The results indicate that A. blanchetti extracts was able to activate the resistance mechanism as observed in resistant plants. This paper is the first report about the use of Caatinga natural plant extracts inducing resistance genes against Sporisorium scitamineum in sugarcane susceptible genotype.

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“…Several Crotalaria species have been reported to display antimicrobial properties. For example, Crotalaria madurensis is active against Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Candida albicans (Bhakshu et al, 2008), Crotalaria capensis against Salmonella typhimurium (Dzoyem et al, 2014), Crotalaria burhia against B. subtilis and S. aureus (Sandeep et al, 2010;Mansoor et al, 2011), Crotalaria juncea against S. aureus (Chouhan and Sushil, 2010), Crotalaria pallida against E. coli and Pseudomonas sp (Pelegrini et al, 2009), and Cladophora trichotoma against Alternaria solani (Ravikumar and Rajkumar, 2013). The purpose of this study was to assess the antimicrobial activity of C. bernieri by testing plant part's extracts obtained in different methods on pathogen bacteria and molds.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of extracts from Crotalaria bernieri Baill. (Fabaceae)

Andriamampianina¹,

Rakoto²,

Petit³

et al. 2016

Afr. J. Microbiol. Res.

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This work was designed to study the antimicrobial activity of Crotalaria bernieri Baill. (Fabaceae). Extracts from leaf, root, pod and seed using hexane, ethyl acetate and methanol were tested in vitro for their activity against 17 bacteria, 5 fungi (3 yeasts and 2 molds) using disc diffusion and micro dilution methods. At the concentration of 1 mg/disc, all the extracts exhibited antimicrobial activity depending on the plant part and the extraction method used. The most sensitive germs were Salmonella enteridis, Streptococcus pyogenes and Candida guilliermondii with inhibition zone diameter (IZD) of 11 mm, 15 mm and 13 mm respectively. Most of extracts showed, broad activity spectrum varying from one extract to another. Minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC) and minimum fungicidal concentration (MFC) of all extracts were recorded. Ten extracts displayed an excellent effect (MIC < 100 µg/ml), 8 a moderate effect (MIC from 100 to 500 µg/ml), 5 a weak effect (MIC from 500 to 1000 µg/ml) and the others were ineffective (MIC > 1000 µg/ml). Leaf methanol extracts were the most efficient and Gram positive bacteria the most sensitive. All extracts had bactericidal (MBC/MIC ≤ 4) or fungicidal action (MFC/MIC ≤ 4) in certain microorganisms and bacteriostatic (MBC/MIC > 4) or fungistatic action (MFC/MIC > 4) in others. Antimicrobial activity might be due to tannins, polyphenols, steroids, triterpenes and flavonoids that were present in most of the plant organs, but alkaloids in leaf and pod and saponosides in root might also be involved. C. bernieri with the effectiveness of all its parts, the variety of its secondary metabolites, the great number of sensitive pathogen microorganisms and its ubiquity make this plant species an interesting source of antimicrobial agents.

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Antifungal activity of plants extracts againstAlternaria solani, the causal agent of early blight of tomato

Cited by 21 publications

References 10 publications

THE ANTIFUNGAL EFFECTS OF DATURA STRAMONIUM L., D. METEL L. , D. INNOXIA Mill. IN FLORA OF TURKEY

THE ANTIFUNGAL EFFECTS OF DATURA STRAMONIUM L., D. METEL L. , D. INNOXIA Mill. IN FLORA OF TURKEY

Extracts From Leaves of Allamanda blanchetti Inducing Mechanism of Defense to Diseases in Sugarcane

Antimicrobial activity of extracts from Crotalaria bernieri Baill. (Fabaceae)

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