Structural and functional analysis of an asymmetric bidirectional promoter in Arabidopsis thaliana Research Advances on Negative Regulators of Anthocyanin Accumulation Research Advances on Negative Regulators of Anthocyanin Accumulation ROP11 GTPase is a Negative Regulator of Multiple ABA Responses in Arabidopsis Expression Analysis and Stress Response Detection of the Phosphoinositide 5-phosphatase gene (CaP5P) in Chenopodium album