Fruit cocktail

 作者:钟游芒     |      日期:2019-02-27 08:15:00
Weevils, which can devastate soft fruit crops by nibbling at their roots, have been thwarted by Europe’s first crop of genetically engineered strawberries. Julie Graham and colleagues at the Scottish Crop Research Institute in Invergowrie near Dundee equipped the plants with an anti-weevil gene from cowpeas. The gene produces a protein that blocks a digestive enzyme in larvae, preventing them from feeding. “The roots of the engineered plants were untouched, whereas the control plants were devastated,” says Graham,