Phytochemical Analysis and In Vitro Evaluation of Antifungal Activity of Five Invasive Plant Species against Macrophomina Phaseolina (Tassi) Goid

Abstract

In vitro antifungal activity of leaf extract of five invasive plant species were evaluated against the fungal pathogen Macrophomina phaseolina using Microdilution assay and direct bioautographic technique. Plants selected for investigations were Ageratum conyzoides, Antigonon leptopus, Chromolaena odorata, Oxalis corniculata and Passiflora foetida. Methanolic extract of all the plants exhibited good activity with minimum inhibitory concentration (MIC) values ranged between 0.078-2.5mg/ml. The leaf extract of Oxalis corniculata had promising antifungal activity with a low MIC value of 0.078mg/ml compared to the other species extracts tested. Total activity was highest in Antigonon leptopus(2304ml/g) followed by Oxalis corniculata(2141ml/g). Bioautography indicated clear zones of inhibition in Antigonon leptopus extract with three active band at R f value of 0.779, 0.468 and 0.276 in BEA mobile system and fungal growth was inhibited in most of the plants tested.

Comparative Study of the in vitro Antioxidant Properties of Methanolic Extracts of Chromolaena odorata and Ageratum conyzoides used in Wound Healing

“…The present work on the qualitative phytochemicals analysis of CO and AC showed varied presence of saponin, phenolics, flavonoids, tannins and terpenoids in the extracts. However, previous work revealed AC had alkaloids besides those detected in this report [14]. The richness of saponins and terpenoids in plant extracts had been linked to contributing to increased biological actions of many medicinal plants [15,16].…”

Isolation of Alkaloids, Saponins and Tannins from Plants

“…alkaloid and saponin. Oxalis contains high concentration of alkaloid, low concentration of saponin and traces of tannin in it, while leaves were rich in these antinutrational factors than the stems (Rashmi and Rajkumar, 2011;Mishra et al, 2012;Sakat et al, 2012). Chinopodium contains high concentration of alkaloids and the traces of saponin while the plant lacks tannins.…”

Utilisation potentials of invasive plants in the Owabi dam in the Ashanti region of Ghana

“…Historically, invasive plants are known to have medicinal properties and hence have been used for the treatment of various ailments. The suitability of invasive plants for medicinal use is supported by their phytochemical constituents and biologically active chemical or natural products, such as alkaloids, glycosides, flavonoids, terpenoids, tannins, and steroids (Rashmi and Rajkumar 2011). From the review presented in Table 1, almost all the identified invasive plants (i.e., C. demersum, N. odorata, P. lanigerum, A. orientalis, T. domingensis, and P. stratiotes) have reported analgesic and antimicrobial uses.…”