Improving Regulation of Enzymatic and Non-Enzymatic Antioxidants and Stress-Related Gene Stimulation in Cucumber mosaic cucumovirus-Infected Cucumber Plants Treated with Glycine Betaine, Chitosan and Combination

The results showed a significant reduction in disease severity and CMV accumulation in plants treated with glycine betaine and CHT, either alone or in combination, compared to untreated plants

Ahmed R. Sofy; Rehab A. Dawoud; Mahmoud R. Sofy; Heba I. Mohamed; Ahmed A. Hmed; Noha K. El-Dougdoug

2020

Scholarcy highlights

  • Cucumber mosaic cucumovirus is one of the most common pathogens in the familyBromoviridae, belonging to the genus Cucumovirus
  • phenylalanine ammonia lyase is a key regulator of the phenylpropanoid pathway that participates in the production of phenolic compounds with a significant range of biologic functions
  • The goal of this study is to investigate the influence of viral infection on growth indices and metabolism of cucumber plants and the effects of using glycine betaine, CHT and combination in the control of the infection with Cucumber mosaic cucumovirus on these plants
  • This was evidenced by less severe symptoms, higher systemic resistance such as modulation of photosynthesis, antioxidant machinery, osmolyte biosynthesis and the expression of stress-related genes such as protein 1 and PAL1
  • The mechanism of GB and CHT effect is to enhance the plant defense against virus infection by increasing the content of salicylic acid and JA hormones which produced by the pathway of some enzymes such as PAL and LOX
  • PAL is a key regulator of the phenylpropanoid pathway that participates in the production of phenolic compounds which help in the plant defense
  • To our knowledge, this study is the first report to use glycine betaine to alleviate the adverse effects of virus infection

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