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

Efficacy of Chemical Fungicides and Plant Extracts Against Anthracnose Pathogens of Capsicum Frutescens L.

2021 ◽  
Vol 50 (2) ◽  
pp. 437-440
Author(s):  
Md Abu Raihan Rony ◽  
Sarowar Hosen ◽  
MA Bashar
Keyword(s):  
Growth Inhibition ◽  
Plant Extracts ◽  
Capsicum Frutescens ◽  
Lippia Alba ◽  
Colletotrichum Dematium ◽  
Heliotropium Indicum ◽  
Chemical Fungicides ◽  
Acalypha Indica ◽  
In Vitro Antifungal Activity

To evaluate the in vitro antifungal activity of five fungicides viz., Capvit 50 WP, Contaf 5 EC, Greengel 72 WP, Knowin 72 WP and Score 250 EC as well as five plant extracts viz., Acalypha indica L., Azadirachta indica A. Juss., Heliotropium indicum L., Lippia alba L. and Magnolia champaca L. at different concentrations were selected against Colletotrichum dematium and C. gloeosporioides following poisoned food technique. Among the five fungicides, Capvit 50 and Score 250 showed the complete growth inhibition of C. dematium whereas Contaf 5 EC showed the complete growth inhibition of C. gloeosporioides at all the concentrations. Contaf 5 was found as the most effective inhibitor against C. dematium. On the other hand, Knowin 72 and Score 250 were found as the most effective fungicides against C. gloeosporioides. A. indica and L. alba showed highest radial growth inhibition of C. dematium and C. gloeosporioides at 20% concentration. Moreover, A. indica and M. champaca also showed desired growth inhibition of the test pathogens. This study paves the way for the management of C. dematium and C. gloeosporioides causing anthracnose disease of chilli. Bangladesh J. Bot. 50(2): 437-440, 2021 (June)

scholarly journals Effect of Thermal Treatment of Chamomile (Marticaria chamomella) Extract on the Growth Inhibition of Some Pathogenic Fungi

2020 ◽  
Vol 14 (4) ◽  
pp. 2683-2689
Author(s):  
Al-Meshal Areej Suliman
Keyword(s):  
Thermal Treatment ◽  
Growth Inhibition ◽  
Aspergillus Fumigatus ◽  
Aqueous Extract ◽  
Trichophyton Rubrum ◽  
Pathogenic Fungi ◽  
Complete Inhibition

This Study shows the effect of thermal treatment of chamomile (Marticaria chamomella) extract with different concentrations (5,10,15,20,25,30) mg / ml, on inhibition of some pathogenic fungi such as Trichophyton rubrum and Aspergillus fumigatus under the different temperature degrees (25,50,75, 100)°C. The aqueous extract of chamomile gave complete inhibition against the fungus Trichophyton rubrum at (20,25,30) mg/ml under temperatures of (25,50,75,100)°C While, the aqueous extract of chamomile gave complete inhibition against the fungus Aspergillus fumigatus at concentrations (25,30) mg/ml under the temperature degree of (75,100) °C.

scholarly journals Extraction and Fractionation Effects on Antiplasmodial Activity and Phytochemical Composition of Palicourea hoffmannseggiana

2021 ◽  
Vol 8 (01) ◽  
pp. e34-e42
Author(s):  
Leticia Hiromi Ohashi ◽  
Douglas Costa Gontijo ◽  
Maria Fernanda Alves do Nascimento ◽  
Luciano Ferreira Margalho ◽  
Geraldo Célio Brandão ◽  
...  
Keyword(s):  
Growth Inhibition ◽  
Scale Up ◽  
Indole Alkaloid ◽  
Ethanol Extract ◽  
Parasite Growth ◽  
In Vitro Activity ◽  
Acid Base ◽  
Leaf Extracts ◽  
Leaf Powder

AbstractThe present study on Palicourea hoffmannseggiana, which was collected at Marapanim, state of Pará, Brazil, comprises the preparation of different stem and leaf extracts and fractions. Ethanol, hydroethanol, and water extracts were prepared by several methods and evaluated for in vitro activity against resistant Plasmodium falciparum (W2 strain), disclosing a low parasite growth inhibition effect (< 50%). Dereplication by UPLC-DAD-ESI−MS of the leaf ethanol extract showed the presence of two known alkaloids, lyalosidic and strictosidinic acids, along with a sinapoyl ester of lyalosidic acid, with m/z 719.33 [M+H]+, which is possibly a new monoterpene indole alkaloid representative. Sequential liquid-liquid acid-base alkaloid separations from the leaf ethanol extract as well as directly from leaf powder afforded fractions of increased parasite growth inhibition, reaching up to 92.5±0.7%. The most bioactive fractions were shown to contain the β-carboline alkaloids harmane and 4-methyl-β-carboline, along with N-methyl-tryptamine and N-acetyl-tryptamine, while monoterpene indole alkaloids were detected in inactive fractions of these processes. The present results demonstrate that these preliminary fractionation methods can lead to significantly active fractions supporting an adequate scale-up to carrying out the isolation of anti-plasmodial compounds.

Sign in / Sign up

Export Citation Format

Share Document