Natural Fungicides Obtained from Plants

Martı́nez, Juan Antonio

doi:10.5772/26336

Cited by 13 publications

(6 citation statements)

References 42 publications

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“…4-CQA, MQG, and CA might be the main active components in H. tuberosus leaves against P. capsici Leonian. These results are consistent with those reported in previous studies [19,20,21].…”

Section: Resultssupporting

confidence: 94%

“…Besides, CA and chlorogenic acid have also been used to inhibit zoonotic pathogens such as Listeria monocytogenes [30]. In addition, some phenolic acids, including CA, chlorogenic, isochlorogenic, ferulic, and p-coumaric acids, have also been found to inhibit Sclerotinia sclerotiorum, P. capsici , and other phytopathogenic fungi [19,20,21]. Although these compounds can be employed either individually or in combination to effectively inhibit phytopathogenic fungi [31], their combined usage might be more effective against P. capsici , when compared with their individual application.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of Antifungal Phenolics from Helianthus tuberosus L. Leaves against Phytophthora capsici Leonian by Chemometric Analysis

Chen

Long

2019

Molecules

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Phytophthora capsici Leonian causes destructive economical losses in pepper production, and a promising source of natural fungicides- Helianthus tuberosus leaves was reported. The antifungal activities of different extracts and compounds from H. tuberosus leaves against the phytopathogen, P. capsici Leonian, were examined by chemometric analysis, including HPLC-MS/MS and multivariate data analyses. Principal component analysis and orthogonal partial least squares-discriminate analysis were applied to examine the four groups of H. tuberosus leaves samples, including crude extracts obtained by different methods, including refluxing, macerating, and refluxing under vacuum; four fractions, namely, petroleum ether (PE), chloroform (Chl), ethyl acetate (EA), and n-butanol (NB) fractions; the samples of three H. tuberosus cultivars; and the samples at three growth stages of cultivar Nan Yu. The phenolics contents were categorized based on 3,5-Dicaffeoylquinic acid (3,5-DiCQA), 1,5-Dicaffeoylquinic acid (1,5-DiCQA), 3-O-Caffeoylquinic acid (3-CQA), and 4,5-Dicaffeoylquinic acid (4,5-DiCQA), which were predominant in all the samples. Antifungal activity assay revealed that Chl and NB fractions were more active against P. capsici Leonian with lower IC50(half of maximal inhibitory concentration) values, whereas partial least squares-discriminate analysis suggested caffeoylquinic acid isomer(4-CQA), methyl-quercetin glycoside(MQG), and caffeic acid(CA) might be the main active components in H. tuberosus leaves against P. capsici Leonian. Furthermore, microscopic evaluation demonstrated structural deformities in P. capsici Leonian treated with Chl and NB fractions, indicating the antifungal effects of H. tuberosus leaves. These results imply that H. tuberosus leaves with a high concentration of phenolics might be a promising source of natural fungicides.

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“…4-CQA, MQG, and CA might be the main active components in H. tuberosus leaves against P. capsici Leonian. These results are consistent with those reported in previous studies [19,20,21].…”

Section: Resultssupporting

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Evaluation of Antifungal Phenolics from Helianthus tuberosus L. Leaves against Phytophthora capsici Leonian by Chemometric Analysis

Chen

Long

2019

Molecules

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“…Extracts and essential oils from plant origin contain secondary metabolite; phenolic, steroid and terpenoids compounds which are toxic in nature and are stored in the plant cells and bears bio-pesticidal properties against pathogens and insect pests. Moreover, they are easily biodegradable, bene ting their existence without causing severe damage to the environment and humans [33][34][35] . Literature review showed that there are several examples of plant products used in plant protection measures as a broad spectrum of plant pathogenic fungi, for instance, thymol and carvacrol have antifungal activity against Botrytis cinerea and Fusarium spp.…”

Section: Correlation Of Antioxidant Activity Versus Antifungal and Insecticidal Activitymentioning

confidence: 99%

Antioxidant, Antifungal and Aphicidal Activity of Triterpenoids Spinasterol, 22,23-Dihydrospinasterol From Colocynthis (Citrullus Colocynthis L.) Leaves

Ahmed

Sajid

Ahsan

et al. 2021

Preprint

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Terpenoids from natural plants resources are valuable for diverse biological activities which exhibited important part in medical and agrochemicals industry. This study aimed to assess the antioxidant, antifungal and aphicidal activity of a mixture of Spinasterol, 22,23-dihydrospinasterol from Citrullus colocynthis leaves. 1, 1-diphenyl-2-picrylhydrazyl (DPPH) was used to assess the antioxidant activity whereas, antifungal activity was tested by mycelium growth inhibition assay on three pathogenic fungi Magnaporthe grisea, Rhizoctonia solani and Phytophthora infestans. Aphicidal activity against adults of Myzus persicae was also determined via In-vitro and In-vivo assays. The outcome of the study exposed that Spinasterol, 22, 23-dihydrospinasterol afforded moderate antioxidant activity even at lower concentrations i.e. 19.98, 31.52, 36.61 and 49.76% at 0.78, 3.0, 12.5 and 50µgmL− 1 respectively. However, reasonable fungicidal activity of Spinasterol, 22; 23-dihydrospinasterol was recorded as being EC50 values 129.5 and 206.1µgmL− 1 against R. solani and M. grisea respectively. On the other hand, Boscalid and Carbendazim being a positive control proved highly effective against all fungi except for M. grisea and P. infestans with EC50 values 868 and 272109µgmL− 1 respectively. The significant insecticidal activity was afforded via residual as well as greenhouse assay being LC50 values as 42.46, 54.86, 180.9 µgmL− 1 and 32.71, 42.46 and 173.8µgmL− 1 at 72, 48 and 24 h respectively. Moreover, antioxidant activity of Spinasterol, 22,23-dihydrospinasterol presented strong positive correlation versus antifungal and insecticidal activity. Spinasterol, 22,23-dihydrospinasterol possess good antioxidant and aphicidal activity with moderate fungicidal activity which could be a suitable candidate as an alternative to synthetic pesticidal agents.

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“…United States National Research Council (USNRC) referred the term biological control as the use of natural or modified organisms, genes, or gene products, to reduce the effects of undesirable organisms and to favor desirable organisms such as crops, beneficial insects and microorganisms [7]. Bio control agents that exhibit antifungal properties have the potential to be a substitute for fungicides and are environment friendly [8]. Bio pesticides are less toxic, and effective at small doses and are known to decompose easily with less toxic to health [9].…”

Section: Introductionmentioning

confidence: 99%

Antifungal Activity of Senna alata, Senna bicapsularis and Pityrogramma calomelanos

Guerra

Ansari

Kurup

et al. 2020

JOCAMR

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Aims: Senna alata (Carrion crow bush), Senna bicapsularis (Money bush) and Pityrogramma calomelanos (Wild maran) are known for their value in traditional medicine. The study was an effort to identify, environment friendly antifungal compounds from these locally available plants against fungal pathogen Curvularia lunata. Study Design: An experiment based study done to identify antifungal property and phytochemical identification of C. lunata. Place and Duration of Study: Plants were collected from the coastal areas of Guyana and identified at the Biodiversity Center, University of Guyana, Guyana between January 2017- May 2017. Methodology: Phytochemical extraction was conducted using soxhlet and rotovap apparatus. Hexane, methanol and aqueous extracts of plants were analyzed for antifungal properties. Antifungal activity was tested using the poisoned food and well diffusion technique. Data analysis of the study was done using R-Studio Program for statistical computing and graphics. A Tukey test was done along with ANOVA and Boxplots. Results: Methanol extract of P. calomelanos showed maximum antifungal activity with an inhibition percentage of 60.3% at 400 µl, with poison food technique. With well diffusion method, P. calomelanos showed an inhibition zone of 54 mm at 500 µl. Saponins, steroids and glycosides were identified with methanol extract of P. calomelanos. Conclusion: The finding of this study indicates, the possible use of P. calomelanos extract as an antifungal agent against C. lunata and its potential to control fungal plant diseases.

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Natural Fungicides Obtained from Plants

Cited by 13 publications

References 42 publications

Evaluation of Antifungal Phenolics from Helianthus tuberosus L. Leaves against Phytophthora capsici Leonian by Chemometric Analysis

Evaluation of Antifungal Phenolics from Helianthus tuberosus L. Leaves against Phytophthora capsici Leonian by Chemometric Analysis

Antioxidant, Antifungal and Aphicidal Activity of Triterpenoids Spinasterol, 22,23-Dihydrospinasterol From Colocynthis (Citrullus Colocynthis L.) Leaves

Antifungal Activity of Senna alata, Senna bicapsularis and Pityrogramma calomelanos

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