تأثير خلاصة طحلبSpirogyra في ثلاثة أنواع من الفطريات المسببة لأمراض النبات

Abstract

Three species of Spirogyra, S. variformis, S. fluviatilis and S. crassa, were collected from the areas of Deir al-Asafir and Hour Ain in the Damascus countryside governorate. Extraction was carried out with methanol and chloroform solvents, The terpenes, tannins, alkaloids, phenols, flavonoids, coumarins and glucosides was observed in all extracts qualitative detection of biologically active compounds was carried out, and the effect of graded concentrations of the extracts on three types of fungi was studied. The fungi are Aspergillus niger, Aspergillus flavus and Penicillium digitatum.. The highest inhibition rate was 63.30% for the methanol extract of S. fluviatile on P. digitatum at a concentration of 100 mg/ml, and the lowest rate of inhibition was 1.97% for chloroform extract of S. variformis on A. flavus at a concentration of 60 mg/ml.