Antifungal activity of extracts from Brazilian Cerrado plants on Colletotrichum gloeosporioides and Corynespora cassiicola

Naruzawa, Erika Sayuri; Papa, M. F. S.

doi:10.1590/s1516-05722011000400006

Cited by 11 publications

(6 citation statements)

References 16 publications

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“…On the other hand, methanolic extracts of leaves of M. splendens did not exhibit any inhibitory activity in Candida albicans and Cryptococcus neoformans (Scio et al, 2012). In a research on the antifungal activity of aqueous and hydroethanolic extracts of Cerrado species, Naruzawa and Papa (2011) observed that extracts of Aristolochia esperanzae and Byrsonima verbascifolia stimulated the growth of the phytopathogenic fungus Corynespora cassiicola, while extracts of Lafoensia pacari and Myracrodruon urundeuva inhibited 100% of the mycelial growth of the same fungus.…”

Section: Resultsmentioning

confidence: 99%

Antifungal and antioxidant activities of mature leaves of Myrcia splendens (Sw.) DC.

et al. 2019

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In recent years, natural products with antifungal and antioxidant activities are being increasingly researched for a more sustainable alternative to the chemicals currently used for the same purpose. The plant pathogenic fungus Alternaria alternata is a causative agent of diseases in citrus, leading to huge economic losses. Antioxidants are important for the production of medicines for various diseases that may be related to the presence of free radicals, such as cancer, and in the cosmetic industry as an anti-aging agent and the food industry as preservatives. This study evaluated the antifungal and antioxidant potential of extracts of mature leaves of Myrcia splendens, a tree species that occurs in the Brazilian Cerrado. The antioxidant potential was analyzed by an assay of 1,1-diphenyl-2-picrylhydrazyl radical-scavenging method, and the antifungal activity was assessed through the evaluation of mycelial growth. Majority of the extracts exhibited a strong antioxidant activity, especially the acetonic extract (4A). The antioxidant activity may be related to the presence of phenolic compounds. However, the extracts showed no inhibitory activity of mycelial growth of the fungus tested, with the exception of dichloromethanic extract (2B), which had an inhibitory effect (10.2%) at the end of testing.

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Section: Resultsmentioning

confidence: 99%

Antifungal and antioxidant activities of mature leaves of Myrcia splendens (Sw.) DC.

et al. 2019

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“…Those in vivo tests as well as their phitochemical analysis allows to evaluate some mechanism evolved in the control of micro-organisms that are plant pathogenic, whose in many times can remain alive in in vivo conditions as related by Rodrigues et al (2007), using ginger (Zingiber officinalis Roscoe) crude extract applied to lettuce leaves, reducing mycelial growth of S. sclerotiorum in 93%, There are few studies using B. crassifolia extracts in plant pathogens, however Guilhon-Simplicio and Pereira (2011) pointed antifungal properties of the bark, leaves, flowers, fruits and roots of this specie in several pathogens that affect human health. Naruzawa and Papa (2011) observed that the hydro ethanol extract from barks of B. verbascifolia Rich ex. Juss had antifungal activity, affecting mycelial growth and spore germination of Corynespora cassiicola (Berk.…”

Section: Resultsmentioning

confidence: 99%

Phytochemistry, antioxidant potential and antifungal of Byrsonima crassifolia on soil phytopathogen control

et al. 2017

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The use of chemical defensives to control fungal diseases has by consequence to impact negatively over the environment and human health, this way, the use of plant extracts with antifungal properties along with proper cultural management makes viable an alternative plant production control, specially for familiar and organic cultures. The objective of this study was to perform phytochemical and antioxidant analysis of Byrsonima crassifolia (canjiqueira) barks and evaluate its antifungal potential over Fusarium solani and Sclerotinia sclerotiorum mycelial growth. The ethanol extract from plants collected in Pantanal, Mato Grosso do Sul, Brazil was submitted to phytochemical prospection, total phenol and flavonoids quantification and antioxidant activiy determination (DPPH). To evaluate antifungal activity concentrations of 800, 1200, 1600, 2000 and 2400 µg 100 mL -1 of ethanol extract were used. Which concentration was separately incorporated in agar (PDA) and shed in Petri dishes, followed by the fungi mycelial disc where the colonies diameter was measured daily. Negatives control with agar without extract and agar with an ethanol solution were used. The B. crassifolia ethanol extract presented inhibitory activity over the fungi studied where concentrations of 800 and 1600 µg 100 mL -1 , inhibited 38% of the mycelial growth of F. solani; to S. sclerotiorum the best concentration was 2400 µg 100 mL 1 , reducing 37.5%. The antifungal bark extract potential of this specie is attributed to phenolic compounds and to triterpenes derivatives.

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“…The total inhibition of the mycelial growth occurred at the concentration of 8% of In general, the extracts with ethanol as solvent proportioned a higher inhibition of mycelial growth. According to Naruzawa and Papa [20], hydroethanolic extracts were more efficient at inhibiting both mycelial growth and spore germination. For the authors, ethanol is a better extractor of substances with antifungal characteristics.…”

Section: Effect In Vitro Of the Extracts Upon The Mycelial Growth Andmentioning

confidence: 99%

Effect of Alcoholic Extracts of Cymbopogon citratus upon the Control of Colletotrichum gloeosporioides in vitro and upon the Post-harvest Quality of Guavas

Santos

Mattos

Itako

et al. 2019

EJMP

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Aims: This work aimed at evaluating the effects of ethanolic and methanolic extracts of lemongrass upon the control in vitro of Colletotrichum gloeosporioides and upon the post-harvest quality of guavas “Paluma”. Methodology: We analyzed the inhibition of mycelial growth and sporulation of the pathogen at different concentrations of the extracts (8%; 5%; 3%; 1.5% and 0.5%). In the post-harvest assay, the guavas were treated by immersion in distilled water, ethanolic and methanolic extracts (1%; 0.5% and 0.25%) and stored at 25ºC ± 2ºC for eight days. We evaluated mass loss, total soluble solids, total titratable acidity, ratio, reducing and non-reducing sugars, ascorbic acid and pH and the incidence of anthracnose. Results: In the test in vitro, the pathogen growth inhibition was dose-dependent and the sporulation was completely inhibited upon higher concentrations of extract. At post-harvest, the fruits maintained their physicochemical characteristics, and the treatments were not efficient at retarding fruit ripening. Although the tested treatments inhibited the plant pathogen C. gloesporioides in vitro, they were not efficient at controlling the disease in vivo. Conclusion: The extracts showed control in vitro of C. gloeosporioides at 8%. However, the extracts were not effective at controlling the disease after harvest.

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Antifungal activity of extracts from Brazilian Cerrado plants on Colletotrichum gloeosporioides and Corynespora cassiicola

Cited by 11 publications

References 16 publications

Antifungal and antioxidant activities of mature leaves of Myrcia splendens (Sw.) DC.

Antifungal and antioxidant activities of mature leaves of Myrcia splendens (Sw.) DC.

Phytochemistry, antioxidant potential and antifungal of Byrsonima crassifolia on soil phytopathogen control

Effect of Alcoholic Extracts of Cymbopogon citratus upon the Control of Colletotrichum gloeosporioides in vitro and upon the Post-harvest Quality of Guavas

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