Brassinosteroids Modify Yield, Quality, and Antioxidant Components in Grapes (Vitis vinifera cv. Alphonse Lavallée)

Increasing of Phenolic Compounds by Brassinosteroid Applications in Immobilized Cell Suspension Cultures of Vitis vinifera L. cv. Cinsault

“…In this medium, the amount of trans-resveratrol was 1.1-fold higher than the control (Fig 1H ). There is only one study conducted on the effects of exogenous brassinosteroid applications on trans-resveratrol in grapevine (Babalık et al 2020). Researchers indicated that trans-resveratrol content increased 2.67-fold compared with control vines.…”

“…Immobilized cells were added to 50 ml liquid MS nutrient media containing 1 mg L -1 BAP, 0.1 mg L -1 2,4-D and 30 g L -1 sucrose with different concentrations of 24-eBL (0, 0.25, 0.50, 0.75 and 1 mg L -1 ). While choosing these concentrations, the previous study we made on vineyards (Babalık et al 2020) is taken as reference. The 24-eBL stock solution was prepared by dissolving in dimethyl sulfoxide (DMSO).…”

“…24-eBL is the most effective and stable BR analog and has been found to high stimulatory effect in enzymatic activity and antioxidant systems in the majority of studies (Hayat et al 2010). Moreover, 24-eBL also promote the production of secondary metabolites in several plants (Çoban & Baydar 2017;Asci et al 2019) and the exogenous application of BRs has been determined to increase antioxidant capacity and phenolic content in grapes (Luan et al 2013;Xi et al 2013;Ghorbani et al 2017;Wang et al 2019;Babalık et al 2020). Although there are few studies conducted the impact of immobilization on the increased accumulation of secondary metabolites in several plants (Choi et al 1995;Gillet et al 2000;Dornenburg 2004) and grapevine (Iborra et al 1994;Guardiola et al 1996), there is no study to determine on the effect of brassinosteroid applications on phenolic contents of grapes in immobilized cultures.…”

Effects of 24‐epibrassinolide on plant growth, antioxidants defense system, and endogenous hormones in two wheat varieties under drought stress

“…The enhancement in their activity on exposure to EBL might be due to the effect of EBL on transcriptional or translational regulation of genes responsible for their functioning (Bajguz and Hayat, 2009; Mohammadi et al ., 2020). Some previous reports have shown a significant augmentation in antioxidant enzyme activities on exposure to EBL in different plant species (Babalık et al ., 2019; Kretynin et al ., 2019; Ahanger et al ., 2020). Furthermore, EBL application reduces the oxidative damage caused by drought stress via enhancing the activities of antioxidant enzymes, relative water content, soluble proteins, and reducing the synthesis of MDA which lead to increase in photosynthesis and ultimately improve plant growth and yield (Filek et al ., 2018; Tanveer, 2019).…”

Brassinosteroids: A Multifunctional Phytohormone of Plant Development and Stress Responses

“…Brassinosteroids application has significant role in the enhancement of nitrate reductase in various crop plants [6,33,159,160]. Babalik et al [161] reported that the application of 24epibrassinolide (24-eBL) in grape plants increased yield, quality, and antioxidant compounds. The concentration 0.2 mg L −1 of 24-eBL applied to vines at three times (7 days after berry set, day of change of colour of the berries, 30 days after veraison) was the most suitable application providing the highest yield and some quality properties such as cluster weight, berry weight, and specific gravity.…”