How auxin wall acidificafication require protein synthesis?

Answer 1

Auxin-induced wall acidification requires protein synthesis because it involves the activation of specific proton pumps, such as the plasma membrane H+-ATPase. Auxin binds to its receptors, triggering a signaling cascade that leads to the transcription and translation of proteins necessary for pump activation. This process promotes the extrusion of protons into the cell wall, lowering the pH and facilitating cell wall loosening, which is essential for cell elongation. Therefore, new protein synthesis is crucial for the auxin signaling pathway to function effectively.