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Entomotoxicity properties of eco-friendly methanol extract fractions from Phyla nodiflora (L.) Greene leaf exhibits mosquito larvicidal, pupicidal and antimicrobial activity

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Irrusappan H., Gokulakrishnan J., Elumalai K., Senthilmurugan S., Vijayan P., Baranitharan M.
World News of Natural Sciences
|
2022
|
vol. 42
107-122
EN
Mosquitocidal activity of Phyla nodiflora methanol leaf extract fractions (Pn-MLEFr) was controlled and using main components on malarial vector, Anopheles stephensi (An. stephensi). Pn-MLE were characterized utilizing tools containing TLC, CC, FTIR and GCMS, and it against 3rd instars larvae of An. stephensi, followed by pupicidal activity was determined to concentration of 1, 3, 5 ppm. In phytochemical, characterized by GCMS analysis was carried out to be eligible for the constituents of the MLE. Pn-MLE Fr-6 showed the highest LC50 and LC90 values of 25.80 and 68.45 ppm, respectively. Fr-6 was found to be most effective for this activity provided pupa stage at death and stage of non-mortality values were 22.85 (NDP), 76.1 (TDP), 1.2 (DP), 0.7 (DA), 78% (TM%) and 6.6 (NAE), 22 (AE%) at 1 ppm against An. stephensi. Moreover, 3 and 5 ppm were provided TM% and AE% values of 94.43% and 5.57%; 100% and no adults emerged. In GC-MS analyzes, a total of 21 compounds were identified in the Pn-MLE, the main component was Ergosta-5,22-dien-3-ol, acetate, (3á,22E)-. Further, the AgNPs synthesized using Fm-ALE showed enhanced anti-bacterial activity. The reports revealed the Ergosta-5,22-dien-3-ol, acetate, (3á,22E)- was the most one of the important a compound provides malarial vector control from Pn-MLEFr.
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