Abstract:

To clarity the response of phenols in different organs of L.ruthenicum Murr.to soil salinization.The stems of annual(F₁),biennial(F₂),triennial(F₃)and wild(Q₁),mild(Q₂),moderate(Q₃),and severe(Q₄)salinized soil were used as experimental materials.The quality of L.ruthenicum was evaluated by principal component analysis.It showed that there were significant differences in each index of L.ruthenicum under different treatments.Among the fruits,the content of wild Q₁ calcium and flavonoids(1.623 g/L,73.963 mg/g)was the highest,the content of total phenol,anthocyanin and procyanidins in Q₄ was the highest(2.049 mg/g,151.836 mg/L,286.167 mg/g),in the shoot,calcium content(4.167 g/L)in Q₂ was the highest,the total phenol content of Q₃(0.491 mg/g)was the highest,the content of flavonoids,anthocyanins and procyanidins in Q₄ was the highest(25.704 mg/g,2.463 mg/L,10.208 mg/g),in leaves,the content of calcium and flavonoids(5.469 g/L,34.593 mg/g)was the highest in Q₁,the content of total phenols and procyanidins(0.943 mg/g,21.00 mg/g)was the highest in Q₄,the content of anthocyanin in Q₂ was the highest(2.880 mg/L);among the annual branchs,the calcium content(2.561 g/L)was the highest in F₁,the contents of total phenols,anthocyanins and procyanidins(0.409 mg/g,0.163 mg/L,8.858 mg/g)in F₂ were the highest,the content of flavonoids(34.593 mg/g)in F₃ was the highest.There was a correlation between soil salinity and various indicators. It is significantly positively correlated with the fruit calcium, and extremely significantly positively correlated with the frui flavone and the leaf calcium. The fruit calcium was significantly positively correlated with the leaf calcium, extremely significantly positively correlated with the fruit flavone, significantly negatively correlated with the fruit anthocyanin and the branch flavone, extremely significantly negatively correlated with the fruit proanthocyanidin.

Key words: Halophyte, Total phenol, Flavonoid, Procyanidin, Anthocyanin, Salinized soil