The antifungal effects of Citrullus colocynthis extract (Hexane, chloroform, methanol, and water) were tested in vitro on Fusarium oxysporum f. sp. lycopersici (Sacc.) W. C. Snyder & H. N. Hans (FOL), the causal agent of Fusarium wilt. Of these, methanol and water extract at 10% showed the highest inhibition of mycelial growth of FOL by 12.32 and 23.61 mm respectively. The antifungal compounds were identified through Fourier transform infrared (FT-IR) spectroscopy and gas chromatography-mass spectroscopy (GC-MS). The methanol extract was compatible with the biocontrol agent Trichoderma viride. The antagonistic fungi were mass-cultured under laboratory conditions using sorghum seeds. Both T. viride and C. colocynthis methanol extract was also tested alone and together against FOL under both in vitro and in vivo conditions. The combination of T. viride and C. colocynthis showed the highest percentage of antifungal activity (82.92%) against FOL under in vitro conditions. This study revealed that induced systemic resistance (ISR) in enhancing the disease resistance in tomato plants against Fusarium wilt disease. The combined treatment of T. viride and C. colocynthis significantly reduced the disease incidence and index by 21.92 and 27.02% in greenhouse conditions, respectively. Further, the induction of defense enzymes, such as peroxidase (PO), polyphenol oxidase (PPO), β-1,3-glucanase, and chitinase were studied. The accumulation of defense enzyme was greater in plants treated with a combination of T. viride and C. colocynthis compared to the control. Reduction of wilt disease in tomato plants due to the involvement of defense-related enzymes is presumed through this experiment.
Kidney stone is a major global menace that demands research on nonsurgical treatment involving biological compounds for the benefit of the patients. Among the biological extracts, citric acid is traditionally used to dissolve kidney stones. The current research focuses on evaluating the in vitro anti‐urolithiatic activity and in silico study of ethanolic extract of Citrus sinensis (ECS) peel against c: phosphoethanolamine cytidylyltransferase (PCYT). The diuretic activity was evaluated using in vitro model against the synthesized calcium oxalate crystals and cytotoxicity study in Madin–Darby canine kidney cell lines. The phytochemicals were identified using gas chromatography–mass spectroscopy. The interaction mechanism was studied using computational docking studies to confirm their involvement in the dissolution of calcium oxalate kidney stones. Further molecular properties, drug‐likeness, ADME (absorption, distribution, metabolism, and excretion), and toxicity analysis were followed for the ligands using software tools. 5‐Hydroxymethylfurfural, 2,4‐di‐tert‐butylphenol, 2‐methoxy‐4‐vinylphenol, 6‐octen‐1‐ol, 3,7‐dimethyl‐, acetate (citronellyl acetate), 3′,5′‐dimethoxyacetophenone, and ethyl alpha‐d‐glucopyranoside showed good binding affinities against PCYT. Moreover, the docking studies showed the ligand 3′,5′‐dimethoxyacetophenone has the highest binding energy (−6.68 kcal/mol) for human CTP. The present investigation concludes that these compounds of C. sinensis peel extract compounds are responsible as novel inhibitors against human CTP and extend their use in the pharmaceutical drug development process.
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