antifungal properties
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Antibiotics ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 72
Author(s):  
Laura Mena ◽  
Muriel Billamboz ◽  
Rogatien Charlet ◽  
Bérangère Desprès ◽  
Boualem Sendid ◽  
...  

Candidiasis, caused by the opportunistic yeast Candida albicans, is the most common fungal infection today. Resistance of C. albicans to current antifungal drugs has emerged over the past decade leading to the need for novel antifungal agents. Our aim was to select new antifungal compounds by library-screening methods and to assess their antifungal effects against C. albicans. After screening 90 potential antifungal compounds from JUNIA, a chemical library, two compounds, 1-(4-chlorophenyl)-4-((4-chlorophenyl)amino)-3,6-dimethylpyridin-2(1H)-one (PYR) and (Z)-N-(2-(4,6-dimethoxy-1,3,5-triazin-2-yl)vinyl)-4-methoxyaniline (TRI), were identified as having potential antifungal activity. Treatment with PYR and TRI resulted in a significant reduction of C. albicans bioluminescence as well as the number of fungal colonies, indicating rapid fungicidal activity. These two compounds were also effective against clinically isolated fluconazole- or caspofungin-resistant C. albicans strains. PYR and TRI had an inhibitory effect on Candida biofilm formation and reduced the thickness of the mannan cell wall. In a Caenorhabditis elegans infection model, PYR and TRI decreased the mortality of nematodes infected with C. albicans and enhanced the expression of antimicrobial genes that promote C. albicans elimination. Overall, PYR and TRI showed antifungal properties against C. albicans by exerting fungicidal activities and enhancing the antimicrobial gene expression of Caenorhabditis elegans.


2021 ◽  
Author(s):  
Muhammad Talib Kalhoro ◽  
Hong Zhang ◽  
Ghulam Mujtaba Kalhoro ◽  
Yahya Faqir ◽  
Fukai Wang ◽  
...  

Abstract Recently Microbicidal and micro-static activities of naturally obtained botanicals have been extensively explored, generally in response to the devastating apprehension of consumers towards the safety of edible products. However, scientists are paying more interest in using bio pesticides and phytochemicals that constitute environmentally favorable, non-toxic, long-lasting, and productive substitutes for preventing many hazardous plant pathogens. This research aimed to investigate the antifungal capabilities of sage and tea tree essential oils towards taro leaf blight, the most important cause of worldwide production losses. Using synthetic fungicides is a rapid and effective approach for controlling plant diseases, but it also creates human health risks, environmental threats, and chances of pathogen resistance. The essential oils of sage and tea tree were obtained by microwave-assisted hydro-distillation, and their chemical components were analyzed using FTIR spectroscopy. The main components of the oil were Thujone and Terpinen-4-ol, in sage and tea, respectively. A casual disease agent isolated from symptomatic taro leaves is used as a test fungus and identified as Phytophthora colocasiae. The antifungal properties of both essential oils were evaluated against mycelium, sporangium, zoospores, leaf necrosis, and corm lesions. Repeated experiments showed that the minimum concentrations for obtaining 100% inhibition of mycelium, zoospore germination, sporangia formation, and leaf necrosis were estimated at 2.5 and 5.0 mg/mL of sage and tea tree oils, respectively. Outcomes of this study provide an allusion for the prevention and curation of plant diseases promptly, economically, and environmentally by using phytochemicals and plant essential oil derivatives.


Toxin Reviews ◽  
2021 ◽  
pp. 1-11
Author(s):  
Samira Enayati ◽  
Mahdi Davari ◽  
Aziz Habibi-Yangjeh ◽  
Asgar Ebadollahi ◽  
Solmaz Feizpoor

Author(s):  
. Harshita ◽  
Reena Sharma

Terminalia arjuna also known as arjun or arjuna, is a member of Combretaceae family. Medicinal or therapeutic plant plays a crucial role to cure various diseases and Terminalia arjuna is one such therapeutic plant. This comprehensive review helps in studying various aspects like phytochemical, pharmacological, ethnomedical, phytological and clinical significance. Alkaloids, flavonoids, triterpenoids, glycosides and mineral ions present in different parts of the plant are discussed. Terminalia arjuna is used mainly in cardiovascular treatment, shows antibacterial, antimicrobial and antifungal properties.


Food Control ◽  
2021 ◽  
pp. 108766
Author(s):  
Quetzali Nicte Morales-Rabanales ◽  
Wendy Abril Coyotl Pérez ◽  
Efraín Rubio-Rosas ◽  
Georgina Salud Cortes-Ramírez ◽  
José Francisco Sánchez Ramírez ◽  
...  

2021 ◽  
Vol 21 (12) ◽  
pp. 5896-5905
Author(s):  
Radha Ahuja ◽  
Anjali Sidhu ◽  
Anju Bala

Nanotechnology has the ability to produce novel nano-sized materials with excellent physical and chemical properties to act against phytopathogenic diseases, essential for revolution of agriculture and food industry. The development of facile, reliable and eco-friendly processes for the synthesis of biologically active nanomaterials is an important aspect of nanotechnology. In the present paper, we attempted to compare sonochemical and co-precipitation method for the synthesis of metal sulfide nanoparticles (MS-NPs) for their structural and antifungal properties against various phytopathogenic fungi of rice. The preparation of nanospheres (NSs) and nano rods (NRs) of CuS, FeS and MnS was monitored by UV-Visible spectroscopy complemented by transmission electron microscope (TEM), scanning electron microscope (SEM), atomic force microscopy (AFM), dynamic light scattering (DLS) and Zeta potential analyser. Sonochemical method resulted in formation of spherical shaped nanoparticles of size (7–120 nm), smaller than those of nanorods (50–200 nm) prepared by co-precipitation produced. It was observed that the metal sulfide nanospheres exhibited a better antifungal potential against D. oryzae, C. lunata and S. oryzae as compared to rod shaped metal sulfide nanoparticles. Smaller size and large surface area of spherical shaped particles opens up an important perspective of the prepared MS-NPs.


Author(s):  
On-Uma Ruangwong ◽  
Kaewalin Kunasakdakul ◽  
Wilailuck Daengsuwan ◽  
Prisana Wonglom ◽  
Kitsada Pitija ◽  
...  

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