Effects of broomrape and drought stress on antimicrobial activity of a drought-sensitive lentil variety
2019
Lentil (Lens culinaris) is moderately resistant to drought and high temperatures but sensitive to weeds such
as broomrape (Orobanche crenata). The current study was aimed at the evaluation of the antimicrobial
properties of L. culinaris ‘Ciftci’ under drought and broomrape infection stresses. Antimicrobial activity of
the ethanolic extract of ‘Ciftci’ was was assayed against some test bacteria and yeast culture by the agar disc
diffusion method and micro broth dilution method. The results suggested that the ethanol extracts from
the different studied treatments showed antimicrobial activities, with the diameters of the inhibition zone
ranging from 7.0 to 13.0 mm and 5.0 to 20.0 µg/mL, respectively. The most intensive antimicrobial activity
against Proteus vulgaris ATCC 13315 was demonstrated by the extract of ‘Ciftci’ on the 7th day grown under
drought. However, only the combined stress (drought and broomrape infection) treatment has promoted
antagonistic effects of the extract against Staphylococcus aureus ATCC 25923 bacteria, as compared to the
control on the 7th day.
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