HPLC-determined leaf cynaroside (A, B) and graveobioside A (C, D) contents, for bell pepper cultivars 'Mavras' (A, C) and 'Stayer' (B, D) under different growth conditions, 15 days after treatment inception (n = 5). Transparent boxplots show pooled data from all leaves (n = 15). Letters (a,b) indicate differences within each cultivar * secondary metabolite -combination (Tukey HSD, p < 0.05).

Contexts in source publication

Context 1

... interactions between cultivar and treatment were observed (Tab. 1). Both combined stressed plants and plants under UV-exposure accumulated significantly higher amounts of cynaroside in their leaves than control and salt stressed plants (Fig. 1, A+B). Plants of the cultivar 'Mavras' accumulated significantly higher graveobioside A amounts in salt-stressed and combined-stressed plants than in control and UV-stressed plants (Fig. 1, C). No significant treatment effect on graveobioside A content in plants of the cultivar Stayer was found (Fig. 1, D). Levels of SM in leaves of ...

Context 2

... stressed plants and plants under UV-exposure accumulated significantly higher amounts of cynaroside in their leaves than control and salt stressed plants (Fig. 1, A+B). Plants of the cultivar 'Mavras' accumulated significantly higher graveobioside A amounts in salt-stressed and combined-stressed plants than in control and UV-stressed plants (Fig. 1, C). No significant treatment effect on graveobioside A content in plants of the cultivar Stayer was found (Fig. 1, D). Levels of SM in leaves of different ontogenetical stages are shown as an illustration of uneven distribution within the plants. SM contents decrease with leaf ontogenetical stage. Both fresh and dry weight of bell pepper ...

Context 3

... leaves than control and salt stressed plants (Fig. 1, A+B). Plants of the cultivar 'Mavras' accumulated significantly higher graveobioside A amounts in salt-stressed and combined-stressed plants than in control and UV-stressed plants (Fig. 1, C). No significant treatment effect on graveobioside A content in plants of the cultivar Stayer was found (Fig. 1, D). Levels of SM in leaves of different ontogenetical stages are shown as an illustration of uneven distribution within the plants. SM contents decrease with leaf ontogenetical stage. Both fresh and dry weight of bell pepper plants differed significantly depending on the cultivar, with Stayer attaining higher weights than Mavras. ...

Context 4

... cynaroside contents under single UV-stress and combined UV-and salt-stress are not significantly different (Fig. 1, A+B), cynaroside accumulation appears to be triggered mainly by high radiation conditions. Interestingly, and in contrast to cynaroside, graveobioside A accumulation is triggered more effectively by salt stress than by UV-stress, especially in the cultivar Mavras (Fig. 1, C). Thit is a surprising result, since biosynthesis of flavonoids is ...

Context 5

... UV-stress and combined UV-and salt-stress are not significantly different (Fig. 1, A+B), cynaroside accumulation appears to be triggered mainly by high radiation conditions. Interestingly, and in contrast to cynaroside, graveobioside A accumulation is triggered more effectively by salt stress than by UV-stress, especially in the cultivar Mavras (Fig. 1, C). Thit is a surprising result, since biosynthesis of flavonoids is said to be enhanced similarly by UV radiation and salinity [13,31]. On the other hand, some authors report that the regulation of SM production in response to salt stress differs between salt sensitive (upregulation) and salt tolerant (downregulation) plants [12]. ...