Antifungal Evaluation and Phytochemical Analysis of Plant Leaf Extracts Against Plant Pathogenic Fungi

2012 ◽  
Vol 2 (4) ◽  
pp. 19-21
Author(s):  
Shaikh Farah .T ◽  
◽  
Sahera Nasreen
Keyword(s):  
Pathogenic Fungi ◽  
Phytochemical Analysis ◽  
Plant Pathogenic Fungi ◽  
Leaf Extracts ◽  
Plant Leaf

scholarly journals Evaluation of Fungicides and Plant Extracts Against Pathogenic Fungi Associated With Basella Spp.

2021 ◽  
Vol 46 (1) ◽  
pp. 81-89
Author(s):  
Nusrat Jahan Shova ◽  
Sarowar Hosen ◽  
MA Bashar
Keyword(s):  
Growth Inhibition ◽  
Pathogenic Fungi ◽  
Colletotrichum Lindemuthianum ◽  
Complete Inhibition ◽  
Leaf Extracts ◽  
Plant Leaf ◽  
Lippia Alba ◽  
Fusarium Semitectum ◽  
Heliotropium Indicum ◽  
Michelia Champaca

Five fungicides viz., CM 75, Dithane M 45, Knowin 50 WP, Nativo 75 WG and Rovral 50 WP were evaluated against Colletotrichum lindemuthianum, Drechslera sacchari and Fusarium semitectum following poisoned food technique. Out of five fungicides complete inhibition of radial growth of C. lindemuthianum was observed in Nativo 75 WG at 100 ppm. On the other hand, the complete inhibition of the growth of D. sacchari was observed with Rovral 50 WP at 400 ppm, whereas Nativo 50 WP showed complete growth inhibition at 500 ppm. CM 75 WP, Knowin 50 WP and Nativo 75 WG showed complete growth inhibition of F. semitectum at 100 ppm. Five different plant leaf extracts viz., Azadirachta indica A. Juss., Heliotropium indicum L., Lippia alba L., Michelia champaca L. and Thuja occidentalis L. were tested against the test pathogens. Of the five plant leaf extracts, Lippia alba showed the highest growth inhibition in C. lindemuthianum, D. sacchari and F. semitectum at 20% concentration. Asiat. Soc. Bangladesh, Sci. 46(1): 81-89, June 2020

scholarly journals PHYTOCHEMICAL ANALYSIS AND ANTIBACTERIAL ACTIVITY OF IPOMOEA INDICA PLANT LEAF EXTRACTS

2018 ◽  
Vol 10 (2) ◽  
pp. 86
Author(s):  
Seenu Yuvarani ◽  
Selvam .
Keyword(s):  
Antibacterial Activity ◽  
Aqueous Extract ◽  
Salmonella Typhi ◽  
Diffusion Method ◽  
Phytochemical Analysis ◽  
Plant Leaves ◽  
Bacterial Strains ◽  
Zone Of Inhibition ◽  
Leaf Extracts ◽  
Plant Leaf

Objective: The objective of this study was to phytochemical analysis and antibacterial activity of the Ipomoea indica plant leaves extracts.Methods: The crude powder of the plant leaf samples of I. indica was extracted using methanol and aqueous solvents and subjected to qualitative phytochemical analysis. The antibacterial activity of the aqueous and methanol extracts was tested at different for concentrations. The extract was tested against bacterial strains like Staphylococcus aureus, Enterococcus faecalis, Salmonella typhi, and Escherichia coli.Results: The phytochemical screening revealed the presence of alkaloids, flavonoids, terpenoids, glycoside, reducing sugars, saponins, steroids and tannins in the solvent extract. The antibacterial activity was performed by using the disc diffusion method, where the largest zone of inhibition was obtained with aqueous extract 75µ concentration against Salmonella typhi (26 mm). The antibacterial activity was compared with the standard antibiotics like Streptomycin.Conclusion: This study suggests that the aqueous extract of the I. indica leaves possesses bioactive compounds with antibacterial activity against the bacterial strains, which can be used to formulate new antibacterial drugs for disease control.

Phytochemical analysis and salivary amylase inhibition activities of Carica papaya leaf and Garcinia mangostana pericarp extracts and partially purified fractions

2017 ◽  
Vol 6 (1) ◽  
pp. 34
Author(s):  
Michael Russelle Alvarez ◽  
Paolo Robert Bueno ◽  
Raymond Oliver Cruz ◽  
Richard Macapulay ◽  
Francis Jayson Vallesfin ◽  
...  
Keyword(s):  
Crude Extract ◽  
Carica Papaya ◽  
Uv Light ◽  
Digestive Enzyme ◽  
Phytochemical Analysis ◽  
Phytochemical Screening ◽  
Salivary Amylase ◽  
Garcinia Mangostana ◽  
Leaf Extracts

Plant-derived digestive enzyme inhibitors particularly those targeted to carbohydrate metabolism has been the focus of recent studies as natural supplements for weight control and diabetes. The present study explores the salivary amylase inhibition activity of Garcinia mangostana (Linn.) pericarp extracts and Carica papaya (Linn.) leaf extracts and fractions, as well as perform phytochemical screening and quantification, and thin layer – and high performance liquid chromatographic profiling. ­Results show that crude extracts and purified fractions were able to inhibit salivary amylase, with C. papaya fraction 1 being the most active at 30.89% inhibition. Phytochemical screening of all extracts tested ­positive for tannins, glycosides, phenolics, flavonoids and alkaloids. Quantification of phenolics showed that extracts contained high levels of phenolics, with C. papaya crude extract having the highest content with 219.0±12.7 mg GAE/g extract followed by G. mangostana crude extract with 247.1±18.0 mg GAE/g extract. Quantification of total flavonoids also showed C. papaya crude extract to contain the highest content with 55.12±0.679 mg QE/g extract. All extracts contained negligible alkaloid content, though. HPLC and TLC profiling showed several peaks and bands, when viewed in 210 nm and UV light, respectively. These results demonstrate in vitro the salivary amylase inhibitory activity of both plants and their potential as antidiabetic drug candidates; however, further studies need to be done, like isolation and structure elucidation of active components and toxicity assays. Keywords: Amylase inhibition, phytochemical quantification, Carica papaya, Garcinia mangostana

Fungal Phytotoxins in Sustainable Weed Management

2018 ◽  
Vol 25 (2) ◽  
pp. 268-286 ◽  
Author(s):  
Maurizio Vurro ◽  
Angela Boari ◽  
Francesca Casella ◽  
Maria Chiara Zonno
Keyword(s):  
Weed Management ◽  
Pathogenic Fungi ◽  
Mechanisms Of Action ◽  
Limiting Factors ◽  
Integrated Weed Management ◽  
Plant Pathogenic Fungi ◽  
Design Strategies ◽  
Disease Etiology ◽  
Chemical Structures ◽  
Toxic Metabolites

Fungal phytotoxins are natural secondary metabolites produced by plant pathogenic fungi during host–pathogen interactions. They have received considerable particular attention for elucidating disease etiology, and consequently to design strategies for disease control. Due to wide differences in their chemical structures, these toxic metabolites have different ecological and environmental roles and mechanisms of action. This review aims at summarizing the studies on the possible use of these metabolites as tools in biological and integrated weed management, e.g. as: novel and environmentally friendly herbicides; lead for novel compounds; sources of novel mechanisms of action. Moreover, the limiting factors for utilizing those metabolites in practice will also be briefly discussed.

First record of Pestalotiopsis spp. from affected leaves of mastic shrubs (Pestacia lentiscus L.) in northeastern of Libya.

2016 ◽  
Vol 5 (08) ◽  
pp. 4744
Author(s):  
Zahra Ibrahim El-Gali
Keyword(s):  
Signs And Symptoms ◽  
Pathogenic Fungi ◽  
First Record ◽  
Plant Pathogenic Fungi ◽  
Pistacia Lentiscus ◽  
Plant Materials ◽  
Al Jabal Al Akhdar ◽  
First Time

This study was carried out to identify the unknown different symptoms and their causes as plant pathogenic fungi from Al-Jabal Al-Akhdar District. Plant materials with fungal signs and symptoms were collected and examined. The main fungi consistently isolated from symptomatic leaves and twigs were Pestalotiopsis spp. Morphology, colony characteristics, and pathogenicity of the isolates were examined. My report the occurrence of Pestalotiopsis spp. on leaves of mastic (Pistacia lentiscus) for the first time in Libya.

Phytochemical evaluation of leaf extracts of Naringi crenulata (roxb.) Nicolson

2016 ◽  
Vol 5 (11) ◽  
pp. 5110
Author(s):  
Sartaj Ahmad Allayie ◽  
Mushtaq Ahmed Parray* ◽  
Bilal Ahmad Bhat ◽  
S. Hemalatha
Keyword(s):  
Quantitative Analysis ◽  
Solvent System ◽  
Great Promise ◽  
Phytochemical Analysis ◽  
Bioactive Constituents ◽  
Leaf Extracts ◽  
Traditional Medicines ◽  
The People ◽  
Wide Range ◽  
Rf Values

The use of traditional medicines holds a great promise as an easily available source as effective medicinal agents to cure a wide range of ailments among the people particularly in tropical developing countries like India. The present study investigates the qualitative and quantitative analysis of the major bioactive constituents of N. crenulata leaf extracts. The extractive values of aqueous, acetone and chloroform extracts were found to be 11.34, 4.24 and 6.06 respectively. Qualitative phytochemical analysis of these three solvent extracts confirm the presence of Alkaloids, Saponins, Flavonoids and Phenolic compounds in all the three extracts; however, these phytochemicals were more significant in aqueous extract. Quantitative analysis was carried out using TLC method by different solvent system. Amongst various solvent systems, Butanol: acetic acid: water (9: 0.9: 0.1 v/v/v) shows maximum resolution and number of spots produced at long UV (365 nm) and under iodine vapours. The TLC chromatograms constituted different coloured phytochemical compounds with different Rf values. It can be conveniently used to evaluate the quality of different area samples. This indicates that the leaves can be useful for treating different diseases because the therapeutic activity of a plant is due to the presence of particular class of compounds and thus can serve as potential sources of useful drugs in future.

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