For the first time, my scholars have found that aromas help plants fight cold.

Low temperature has a great influence on plant yield and geographical distributionAdversityconditions such as low temperature can lead to a large accumulation of reactive oxygen free radicals in the plant, which in turn can poison the plantIf reactive oxygen can be effectively removed, it can reduce the damage to plants from adverse environments such as low temperatureorange blossom is one of the most important aromas in the tea treeThe study first found that in low-temperature environment, the tea tree in combination with a large number of orange blossom glycoside accumulationOn this basis, the researchers through bioinformatics, biochemistry and other means, and finally from nearly 300 glycogen transfer enzyme gene successfully obtained a UGT91Q2 gene, the gene can be activated glucose transferred to the free state of orange glycoside alcohol, and thus form a binding state of orange blossom alcohol glycoside precursorin vitro antioxidant analysis found that reducing the expression of UGT91Q2 gene in tea tree, it will reduce the accumulation of tea tree orange flower glycoside, resulting in a large accumulation of reactive oxygen, which in turn leads to a decline in the tea tree's cold resistanceThe addition of orange blossom alcohol from the outside can promote the accumulation of a large amount of orange blossom glycoside in the tea tree, effectively improve the ability of the tea tree to remove reactive oxygen free radicals, and thus play a role in resisting the coldThis phenomenon has also been proven in tobaccoAt the same time, the researchers also found that orange blossom alcohol can also be used as a signaling substance, effectively stimulate the anti-cold defense mechanism in the tea tree, thereby improving the tea tree's ability to actively prevent cold damagethis study not only provides a theoretical basis for the regulation of orange glycoside in the tea tree, but also provides a new way for the study of plant cold resistance.