Multi-omics profiling reveals the dynamic interplay between processing-induced phytochemical transformation and antioxidant bioactivity in 'Huangkui' tea (Camellia sinensis).

'Huangkui' (HK), a natural yellow-leaf tea mutant, is usually used as raw materials for producting green tea with unique sensory traits, including bright yellow-green infusions and mellow-refreshing taste. Integrated GC-MS and UPLC-Q-TOF-MS analysis tracked dynamic volatile and non-volatile metabolite changes during processing. In total, 101 volatiles were detected and in which 19 marker compounds were identified.

Effect of micrografting technique on growth and cold resistance of tea (Camellia sinensis) plant.

Background: Micrografting technology has gained popularity in model plants, with the advantages of a wide grafting range and small space. However, this technique has not been fully explored in tea plants.

Results: In our study, different rootstocks [radicle (obtained from the germination in seed), epicotyl without cotyledons, epicotyl with cotyledons, tea varieties] and scion (red branch, green branch) grafting combinations were used to estimate the survival rate, plant growth, the compatibility behavior, and cold tolerance of grafted seedlings.