Isolation of natural herbicidal compound from Lantana camara. Issue 5 (9th April 2021)

• Record Type: Journal Article
• Authors: Qureshi, Huma; Anwar, Tauseef; Ali, Qasim; Haider, Muhammad Zulqurnain; Habib, Noman; Fatima, Sammer; Waseem, Muhammad; Bibi, Yamin; Arshad, Muhammad; Adkins, Steve William
• Is Part Of: International journal of environmental analytical chemistry. Volume 101:Issue 5(2021)
• Page Start: 631
• Page End: 638
• Publication Date: 2021-04-09
• Subjects: Weeds in wheat crop -- allelopathy for weed management -- herbicidal compounds -- spectroscopic techniques -- flavonoids; Ecology -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental chemistry -- Periodicals; Pollution -- Periodicals; 577.14
• DOI: 10.1080/03067319.2019.1670822
• Languages: English
• ISSNs: 0306-7319

Abstract

ABSTRACT: A flavone glucoside 'vitexin' (C21 H20 O10 ) was isolated from the leaves of Lantana camara through bioassay-guided isolation. Kupchan method of solvent-solvent partitioning of crude methanol extract from leaves of L. camara gave ethyl acetate, chloroform, hexane and aqueous fraction. Bio-assay with four fractions at 500 ppm, 1000 ppm and 10, 000 ppm indicated chloroform fraction to be most potent phytotoxic against weeds (monocot: Phalaris minor, Avena fatua ; Dicot: Chenopodium album, Rumex dentatus ). Column chromatography of chloroform fraction with hexane: ethyl acetate (60:40) based on TLC profiling with vanillin visualisation stain and subsequent bioassays indicated sub-fraction (iii) of fraction 23 as most growth inhibitory. The chemical structure of the isolated compound was identified by gas chromatography-mass spectrometry (Shimadzu GC-MS-QP2010 ultra). The natural herbicidal activity of the isolated compound against various weeds in laboratory and field conditions is suggested.