Superoxide dismutase activity in sunflower artificially infested with broomrape
2019
Tabără, O. (The State University "Dimitrie Cantemir", Republic of Moldova
Infestation of sunflower plants with broomrape induces the production of reactive oxygen species as a result of root tissue penetration and increases the activity of superoxide dismutase enzymes (SOD). In this context, the purpose of this research consists of the analysis of SOD enzyme activity in resistant and susceptible genotypes cultivated in the absence (control) and presence of broomrape infestation in temporal dynamics depending on the pathogen developmental stages. Both in control and stressed plants, the activity of SOD tended to be reduced until 21-35 days of cultivation, after that this parameters increased Sensitive genotypes have been characterized by an oxidative stress extended during all the period of pathosystem development, while resistant genotypes al the last stages of cultivation on the background of infestation shown increased values of SOD activity comparative to the control. 19 references, 2 figures.
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