Comparative bioactive compounds and antifungal potential evaluation of Mentha longifolia (L.) Hudson (Lamiaceae) extracts against plant pathogenic fungi
Year: 2023
Type: article
Abstract: The present study was design to evaluate the Mentha longifolia stem, flower and leaves infusion, decoction and hydroalcoholic extracts to determine the bioactive molecules and antifungal activities by zone of inhibition technique, Minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) were assay by broth dilution technique and spore germination assay using Light Compound Microscope against plant pathogenic fungi (Fusarium oxysporum, Aspergillus parasiticus, Rhizoctonia solani and Alternaria alternata). The Mentha longifolia phytochemicals were found in the range flavonoids 3.8 - 2.4%, saponins were 5.6-3.4%, alkaloids 0.7-0.1% and total phenolic were 40-15 mg Gallic acid/g. The maximum zone of inhibition 23±1 mm and 22±1 mm were found by hydroalcoholic leaves extract against Fusarium oxysporum and Aspergillus parasiticus respectively. The MIC range of hydroalcoholic were 12.5-100 mg/mL, infusion were 25-100 mg/mL and decoction were 25-200 mg/mL. While MFC range of hydroalcoholic were 25-200 mg/mL, infusion were 50- 200 mg/mL and decoction were 50-200 mg/mL. Spore germination assay reaveled that increse in the extract concenetration decrese the spore germination. The results revealed that Mentha longifolia chemical composition might be build up as latent bio- fungicides against plant pathogenic fungi.
Authors: Javid Ali, Javed Abbas
Institution: Pakistan Council of Scientific & Industrial Research
Language: English
Subfield: Food Science
Domain: Life Sciences
Open Access status: diamond
OpenAlex ID: W4380049349