Luteolin-glucuronide

Anhalt S, Weissenbock G (1992) Subcellular localization of luteolin glucuronides and related enzymes in rye mesophyll. Planta 187 83-88 Apse MP, Aharon GS, Snedden WA, et al. (1999) Salt tolerance conferred by overexpression of a vacuolar NaVH antiport in Arabidopsis. Science 285 1256-1258... 

Marchantia polymorpha Thallus cells Luteolin-7-glucuronide luteolin-3,4 -diglucuronide 99... 

Feruloylglucuronosyl) (1 2)glucuronide 7-[Glucuronosyl(l 3)(2" -feruloylglucuronosyl)] (1 2)glucuronide Luteolin 4 -methyl ether (diosmetin)... 

Substantial quantities of luteolin-7-O-glucuronide, luteolin-7-O-glucoside, and luteolin-7-O-rutinoside occur in Red Oak Leaf and Lollo Rosso, two red-leaved varieties of lettuce (Lactuca sativa) [Llorach et al., 2008], Polymethoxylated flavones such as nobiletin, scutellarein, sinensetin, and tangeretin (Fig. 1.8) are found exclusively in citrus species [Crozier et al., 2006c], while diosmetin-7-O-glucuronide has been isolated from the fruits of a Chinese herb, Luffa cylindrical. 

The flavonoids, luteolin, luteolin 7-0-/3-d-xyloside and cynaroside, were isolated by El-Moghazi et al. (1979) and orientin and vitexin by Akunzemann and Herrmann (1977). Quercetin-3-glucuronide, rutin, isoorientin, isovitexin and apigenin-7-glucoside have been reported from aniseed (Ozguven, 2000). Figure 18.2 depicts the structure of flavonoids in aniseed. 

From Melissa officinalis subsp. officinalis luteolin 3 -0-p-D-glucuronide (43) was isolated [128]. In another study with the same plant luteolin 7-0-glucoside (7), isoquercitrin (24), apigenin 7-0-glucoside (19) and rhamnocitrin (238) were isolated [129]. 

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