In this study, we selected three tea ( Camellia sinensis ) varieties (Lucha 1, HuangJincha 2, Xueyacha 100). Lucha 1 exhibited the highest levels of sugars suggesting a link between the levels of these three sugars and cold resistance. Varying tea polyphenol and amino acid content in analyzed tea plant samples were associated with differences in leaf palisade tissue and spongy tissue thickness. The leaves of Lucha 1 were thicker, with thinning of the upper epidermis, thickening of the lower epidermis and spongy tissue, and tightening of the palisade tissue, increased stomatal density, and a wa...
