In current studies it has been determined that epiphytic bacteria generally doesn't harm the plant, but promote the formation of ice crystals.
Some produce an auxin hormone which promotes plant growth and plays a role in the life cycle of the bacteria.
They adhere to the plant surface forms as 1-cluster 2- individual bacterial cell 3- biofilm .
[1] The age of the organ also affects the epiphytic bacteria population and characteristics and has a role in the inhibition of phytopathogen on plant.
[3][4] Current studies on epiphytic bacteria are underway for biotechnological applications areas such as the promotion of plant growth.