Shoot gravitropism and organ straightening cooperate to arrive at a mechanically favorable shape in Arabidopsis.

Abstract excerpt

Gravitropism is the plant organ bending in response to gravity, while a straightening mechanism prevents bending beyond the gravitropic set-point angle. The promotion and prevention of bending occur simultaneously around the inflorescence stem tip. How these two opposing forces work together and what part of the stem they affect are unknown. To understand the mechanical forces involved, we rotated wild type and...

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• Arabidopsis
• Arabidopsis Proteins
• Gravitation
• Gravitropism
• Mutation