Emerging Arabidopsis roots exhibit hypersensitive gravitropism associated with distinctive auxin synthesis and polar transport within the elongation zone.

Abstract excerpt

Gravitropism is crucial for plants to secure light, water, and minerals essential for developing seedlings. Despite its importance, the gravitropism of young roots remains largely unexplored. Herein, we reported that the emerging Arabidopsis roots exhibit hypersensitive gravitropism compared to mature roots, growing relatively slowly but bending exceptionally rapidly. This rapid gravibending is characterized by...

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