GAs control growth and elongation by cell expansion and cell division
GAs induce expression of cellcycle regulatory proteins called cyclins
GAs promote elongation by cell wall loosening and stabilizing the orientation of cortical microtubules, which help direct growth
GAs mediate stress responses through DELLA proteins
GAs promote seed germination and reserve mobilization
During germination, GA induces expression of nutrient-mobilizing enzymes
GAs interact with brassinosteroids at transcriptional level