Vitis davidii

Vitis pseudureticulata, which is very hardy to biotic and abiotic stress, is nsed as rootstock for Vitis davidii Tangwei. Vitis balanseana was nsed as rootstock for Golden Muscat to increase the productivity and disease resistance (Miao et al., 1999). Wild V. piasezkii was nsed as rootstock for cold hardiness, and its affinity with scions was good (Zhang et al., 2009). 

Davidiol D (754) isolated from the roots of Sophora davidii was the first natural instance of a resveratrol pentamer [339]. The pentamers amurensins E (751) and F (752) were isolated from the roots of Vitis amurensis Rupr. with an unsaturated benzofuran ring [216]. Upunoside A (753) isolated from the stem of Upuna borneensis (Dipterocarpaceae) is the first instance of a resveratrol pentamer glucoside, and the aglycon has dibenzo-fused bicyclo[5.3.0]octadiene and two dihydrobenzofuran moieties [223], Fig. (45). 

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