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Pesticidal Activity of Sundarban Mangrove Plant Extracts against Sitophilus Pests and Identification of Active Constituents Using LC-MS

Authors :
Md. Abdur Rahman
Rinku Rani Paul
Chaina Biswas
Hakima Akter
Razina Rouf
Sushmita Nath
Jamil A. Shilpi
Lutfun Nahar
Stayajit D. Sarker
Shaikh Jamal Uddin
Source :
Advances in Pharmacological and Pharmaceutical Sciences, Vol 2021 (2021)
Publication Year :
2021
Publisher :
Hindawi Limited, 2021.

Abstract

Plants act as a rich source of novel natural pesticides. In the backdrop of the recent revival of interest in developing plant-based insecticides, this study was carried out to investigate the pesticidal activity of Sundarban mangrove plants. A total of nine different plant parts from five plants, namely, Aegiceras corniculatum, Excoecaria agallocha, Heritiera fomes, Xylocarpus moluccensis, and Xylocarpus granatum, were extracted with methanol and tested for insecticidal activity against two common stored product pests Sitophilus oryzae and Sitophilus zeamais using direct contact feeding deterrent wafer disc method. Three bark extracts from A. corniculatum, E. agallocha, and H. fomes showed potent and statistically significant insecticidal activity against both S. oryzae and S. zeamais pests (80–100% mortality). All the active bark extracts were further fractionated using C-18 solid-phase extraction (SPE) columns and tested for their insecticidal activity against S. oryzae pest to identify the active fraction. Only the SPE4 fraction (100% MeOH) from all the three active plants showed the activity against S. oryzae pest with a lethal concentration 50% (LC50) value of 0.5, 1.0, and 1.5 mg/disc for A. corniculatum, E. agallocha, and H. fomes, respectively. The active fraction of A. corniculatum was further profiled for identification of active compounds using LC-ESI-MS and identified (along with some unknown peaks) two previously reported compounds at m/z 625.17630 (isorhamnetin 3-O-rutinoside) and 422.25346 (paspaline) as major constituents. Insecticidal activities of these plants are reported in this study for the first time and would be useful in promoting research aiming for the development of new biopesticides from mangrove plants.

Subjects

Subjects :
Therapeutics. Pharmacology
RM1-950

Details

Language :
English
ISSN :
26334690
Volume :
2021
Database :
Directory of Open Access Journals
Journal :
Advances in Pharmacological and Pharmaceutical Sciences
Publication Type :
Academic Journal
Accession number :
edsdoj.baa8fba904164b538e2bf95d24e1e0cf
Document Type :
article
Full Text :
https://doi.org/10.1155/2021/1540336