Commenced in January 2007
Paper Count: 32119
Evaluation of the Inhibitory Effect of Some Plant Crude Extracts Against Albugo Candida, the Causal Agent of White Rust
Abstract:White rust, caused by Albugo candida, is the most destructive foliar diseases of persian cress, Lepidium sativum in Iran. Application of fungicide is the most common method for the disease control. However, regarding the problems created by synthetic pesticides application, environmentally safe methods are needed to replace chemical pesticides. In this study, the antifungal activity of plant natural extracts was investigated for their ability to inhibit zoospore release from sporangia of A. candida. The crude extract of 46 plants was obtained using methanol. The inhibitory effect of the extracts was examined by mixing the plant extracts with a zoosporangial suspension of A. candida (1×106 spore/ml) at three concentrations, 250, 100 and 50 ppm. The experiments were conducted in a completely randomized design, with three replicates. The results of the experiment showed that three out of 46 plants species, including, Rhus coriaria, Anagallis arvensis and Mespilus germanica were completely inhibit zoospore release from zoosporangia of Albugo candida at concentration of 50 ppm.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1332782Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1810
 Bahraminejad, S., Asenntorfer R.E., Riley, I.T. and Schultz, C.J. 2008. Analysis of the antimicrobial activity of flavonoids and saponins isolated from the shoots oats (Avena sativa L.). J. Phytopathology. 156:1-7.
 Etebarian, H.K. 1993. Studies on white rust of radish and cress in varamin and Shahre-e- ray areas. Iranian Journal of Plant Pathology 29(3, 4): 51-52
 Kim, D.K., Shim, C.K., Bae, D.W., Kawk, Y.S., Yang M.S. and Kim, H.K. 2002. Identification and biological characteristics of an antifungal compound extracted from cocklebur (Xanthium strumarium) against Phythopthora drechsleri. Plant Pathol J 18: 5, 288-292.
 Kostova, I. and Dinchev, D. 2005. Saponins in Tribulus terrestris- chemistry and bioactivity. Phytochem. Rev. 4: 111-137
 Qasem, J.R. and Abu-Blan, H.A. 1996. Fugicidal activity od some common weed extracts against different plant pathogen fungi. J. Phytopathol. 144: 157-161.
 Singh,U. S., Doughty, K. J., Nashaat, N. I., Bennett, R. N. and Kolte , S. J. 1999. Induction of Systemic Resistance to Albugo candida in Brassica juncea by Preor Coinoculation with an Incompatible Isolate. Phytopathology. 89:1226-1231