HPLC identification of allelopathic compounds fromLantana camara

Abstract

Aqueous extracts ofLantana camara L. leaves inhibited ryegrass (Lolium multiflorum Lam.) germination and seedling growth. Phytotoxic compounds were fractionated from crude aqueous extracts and fractions were evaluated for their phytotoxicity. Inhibition was most pronounced with the alkaline and acid hydrolysates. Plant inhibition by the crude extract reflected a complex interaction of numerous individual components of diverse chemical compositions and potencies. Presumptive identification of the individual components was accomplished with high-performance liquid chromatography (HPLC). Thirteen phenolic compounds were identified, and most of these compounds were phytotoxic to ryegrass seedlings. Radicle elongation was more sensitive to the toxins than shoot elongation.

Fitotoxicidad De Aceites Esenciales Y Extractos Acuosos De Plantas Mediterráneas Para El Control De Arvenses

“…De los metabolitos secundarios producidos y liberados por L. camara: ácidos fenólicos, flavonoides, y terpenoides (Kong et al, 2006), algunos son aleloquími-cos que inhiben el crecimiento de otros organismos (Mersie y Singh, 1987;Jain et al, 1989;Singh et al, 1989;Guisalberti, 2000;Misra y Laatsch, 2000;Sharma et al, 2000;Kong et al, 2006). Las hojas, raíces y frutos de L. camara contienen aleloquímicos, principalmente alcaloides aromáticos y compuestos fenólicos (Ambika et al, 2003).…”

Persistence, Relative Efficacy and Phytotoxicity of Lantana camara Var. Aculeata (L.) Moldenke Leaf Crude Extracts in Hexane against Plutella xylostella L. In Cruciferous Vegetables

“…It is due to L. camara may produce and release several types of secondary metabolites, including phenolic acids, flavonoids, terpenes and terpenoids. Among these secondary metabolites, some are known allelochemicals inhibiting the growth of other organisms and weeds (Mersie and Singh, 1987;Singh et al, 1989;Sharma et al, 2000).…”

Lantana camara: An alien weed, its impact on animal health and strategies to control

“…Anti-inflammatory Oleanolic acid, ursolic acid and Oleanonic acid Hart et al, 1976b;Johns et al, 1983b;Liu, 1995;Verma et al, 1997;Giner-Larza et al, 2001;Benites et al, 2009;Ghosh et al, 2010;Hussain et al, 2011;Sousa & Costa, 2012 5. Antitumor LA, oleanolic acid, ursolic acid, Camaraside and Lantalucratins A-F Brown & Rimington, 1964;Seawright & Hardlicka, 1977;Mahato et al, 1994;Deena & Thoppil, 2000;Ghisalberti, 2000;Hayashi et al, 2004 Brown et al, 1963;Johns et al, 1983a;Singh et al, 1989;Sharma et al 1991;Verma et al, 1997;Wachter et al, 2001;Kong et al, 2006;Verdeguer et al, 2009 9. Antiviral LA, LB, LC, RLA, RLB and 22beta-Hydroxy-3-oxolean-12-en-28-oic acid Johns et al, 1983a;Inada et al, 1995 10.…”

“…and lantadenes i.e. LA (lantadene A) and LB (lantadene B) (Achhireddy et al, 1984;Jain et al, 1989;Singh et al, 1989;Ferguson & Rathinasabapathi, 2003). The suppressive allelopathic action of this plant has been seen on certain plant species like Glycine max (Linn), Cyclosorus dentatus Forsk, Triticum aestivum L., Zea mays L. and Lolium multiflorum Lam (Achhireddy et al, 1985;Sharma et al, 2007).…”