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Role of Auxin-Induced Reactive Oxygen Species in Root Gravitropism

Open access
Joo, Jung Hee, Bae, Yun Soo, Lee, June Seung·2001·Plant Physiology

Abstract

We report our studies on root gravitropism indicating that reactive oxygen species (ROS) may function as a downstream component in auxin-mediated signal transduction. A transient increase in the intracellular concentration of ROS in the convex endodermis resulted from either gravistimulation or unilateral application of auxin to vertical roots. Root bending was also brought about by unilateral application of ROS to vertical roots pretreated with the auxin transport inhibitor N-1-naphthylphthalamic acid. Furthermore, the scavenging of ROS by antioxidants (N-acetylcysteine, ascorbic acid, and Trolox) inhibited root gravitropism. These results indicate that the generation of ROS plays a role in root gravitropism.

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Metadata

Authors
Joo, J. H., Bae, Y. S., & Lee, J. S.
Venue
Plant Physiology
Published
2001-07-01
Volume
126
Issue
3
Pages
1055-1060
ISSN
  • 0032-0889 (ISSN-L)
  • 1532-2548
OpenAlex
W2075123870
Cited by
557
References
0
FWCI
18.98
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Role of Auxin-Induced Reactive Oxygen Species in Root Gravitropism. https://app.cochat.ai/papers/10.1104/pp.126.3.1055
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Joo, J. H., Bae, Y. S., & Lee, J. S. (2001). Role of Auxin-Induced Reactive Oxygen Species in Root Gravitropism. Plant Physiology. https://doi.org/10.1104/pp.126.3.1055

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.