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Progress in the Study of Auxin Signal Tranducation
ZHAO Pu Qing, TONG Fu Dan, WANG Qiao Mei*
Department of Horticulture, Zhejiang University, Hangzhou 310029, China
Abstract: Auxin signal transducation is a complex net-work system. There might exist other routes for auxin perception， besides the well-known ABP1 mediated perception pathway on the membrane. The G protein is involved in inducing the transfer of auxin signal in the cell， and the secondary messengers of auxin signaling include H+-ATPase， phospholipase A2， lipid-activated protein kinase， mitogen-activated protein kinase(MAPK) and the protein kinase PINOIND. The degradation of AUX/IAA protein by ubiquitination plays essential role in auxin response， and the interaction between ARF and AUX/IAA protein regulates the transcription of auxin-response genes.
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