Phytochemical composition and antifeedant activity of five Vincetoxicum taxa against Spodoptera littoralis and Leptinotarsa decemlineata

Abstract

Phytochemical analysis revealed the presence of cardiotonic glycosides, sugars, flavonoids and alkaloids in all investigated taxa. In the dichloromethane and methanol:dichloromethane (1:1) extracts, phenanthroindolizidine alkaloids were detected by LC/MS/MS.

Evaluation of antimicrobial activity of five Vincetoxicum taxa growing in Turkey

“…and V. nigrum [21,22]; antifungal, antibacterial [12,23], antileishmanial and antimalarial activities of V. stocksii [12] and antioxidant activity of V. lutea L. [11] have been determined. Furthermore, cytotoxic [24,25], antifeedant and growth inhibition [26][27][28] effects of the genus were also reported.…”

“…Moreover, acetophenone, volatile compounds [13], starch [27] and saponins [27,30] were detected from the roots, and alkanols [15] and tannins [28] were detected from the aerial parts. As another secondary metabolites flavonoids [14,23] and steroidal glycosides [14,15] were found in Vincetoxicum species.…”

“…boissieri (Kusn) Browicz) are endemic to Turkey [30,31]. Vincetoxicum species growing wild in Turkey were firstly investigated in our previous studies for their phytoconstituents [28], antifeedant activities against Spodoptera littoralis and Leptinotarsa decemlineata [27,28] and antifungal activity against Aspergillus fumigatus [32]. There is no investigation on antibacterial activities of Turkish Vincetoxicum species in the literature.…”

“…boissieri, V. fuscatum subsp. fuscatum and V. parviflorum) contain tannins [28], and the roots of the whole plants contain steroidal glycosides, starch and sugars, and one of them (V. fuscatum subsp. boissieri) contains saponins [27].…”

“…boissieri) contains saponins [27]. Furthermore, presence of phenanthroindolizidine alkaloids in aerial parts of the tested plants were demonstrated by LC/MS/MS analysis [28].…”