Exogenous Application of Aloe vera Leaf Extract Improves Silybin Content in Silybum marianum L. by Up-Regulating Chalcone Synthase Gene

Mayyadah Abdullah Alkuwayti (), Munirah Fahad Aldayel, Yun-Kiam Yap and Fadia El Sherif
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Mayyadah Abdullah Alkuwayti: Department of Biological Sciences, College of Science, King Faisal University, Al Ahsa 31982, Saudi Arabia
Munirah Fahad Aldayel: Department of Biological Sciences, College of Science, King Faisal University, Al Ahsa 31982, Saudi Arabia
Yun-Kiam Yap: Department of Biological Sciences, College of Science, King Faisal University, Al Ahsa 31982, Saudi Arabia
Fadia El Sherif: Department of Biological Sciences, College of Science, King Faisal University, Al Ahsa 31982, Saudi Arabia

Agriculture, 2022, vol. 12, issue 10, 1-10

Abstract: Biotic elicitors such as Aloe vera extract (ALE) have been shown to stimulate growth and modify the bioactive composition of various plant species. ALE has a unique mixture of nutrients that support plant production and growth. In this study, the bio-stimulative effects of ALE foliar spray on plant production and growth, silybin levels, and chalcone synthase gene expression in Silybum marianum were examined. The findings indicated that foliar spray of all the ALE concentrations under study increased plant growth and yield. Additionally, by raising the silybin level of the plant extract, ALE increased the therapeutic value of S. marianum . Further, the activation of the chalcone synthase gene by ALE was analyzed by gene expression research. S. marianum ’s growth and production were improved by the application of 60 mL/L ALE, while the silybin level and the chalcone synthase gene expression levels were improved by the application of 40 mL/L ALE. In addition, methanolic fruit extract that contained a higher silybin content also demonstrated a higher anti-microbial activity against Staphylococcus aureus and methicillin-resistant Staphylococcus aureus .

Keywords: bio-elicitors; silymarin; high-performance liquid chromatography; quantitative reverse-transcribed PCR; disc diffusion assay; anti-microbial activity (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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