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Volume 15
Issue 11
10.3390/plants15111596
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Communication

The Long Intergenic Noncoding RNA ARTA Specifically Regulates MYB7 Nuclear Trafficking to Establish a Self-Reinforcing Circuit for ABA Response

by
Zhengmin Tang
1,†,
Jun Yang
2,†,
Yanhang Chen
1,
Yongdi Zhang
1,
Jingjing Cai
1,
Dong Wang
1,*,
Reqing He
1,* and
Youlin Zhu
1,*
1
Institute of Advanced Agricultural Sciences, College of Life Science, Nanchang University, Nanchang 330031, China
2
Ministry of Education Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Jiangxi Agricultural University, Nanchang 330045, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Plants 2026, 15(11), 1596; https://doi.org/10.3390/plants15111596 (registering DOI)
Submission received: 21 April 2026 / Revised: 9 May 2026 / Accepted: 18 May 2026 / Published: 22 May 2026
(This article belongs to the Special Issue Genetic Regulation and Plant Biochemistry)
Versions Notes

Abstract

Long noncoding RNAs are involved in diverse biological processes in plants. Our recent study has revealed that an ABA-induced long intergenic noncoding RNA, ARTA, regulates both ABA and drought responses by blocking the nuclear import of a transcription factor, MYB7, through interacting with an importin β-like protein, SAD2. Here, we show that unlike MYB7, ARTA fails to disrupt interactions of SAD2 with the other two R2R3-MYB subgroup 4 members, MYB4 and MYB32. Consequently, the nuclear localizations of MYB4 and MYB32 remain unchanged upon alteration of ARTA expression. Furthermore, ARTA and MYB7 form a self-reinforcing feedback loop during Arabidopsis responses to ABA: ABA treatment induces ARTA expression, which in turn inhibits nuclear accumulation of MYB7, thereby deteriorating MYB7-mediated repression of ARTA and promoting ARTA production. This self-reinforcing feedback regulation elegantly integrates protein relocalization with transcriptional augmentation in the ABA response process, and provides a tunable molecular circuit for plant stress adaptation.
Keywords: lncRNA; feedback; nuclear trafficking; ABA lncRNA; feedback; nuclear trafficking; ABA

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MDPI and ACS Style

Tang, Z.; Yang, J.; Chen, Y.; Zhang, Y.; Cai, J.; Wang, D.; He, R.; Zhu, Y. The Long Intergenic Noncoding RNA ARTA Specifically Regulates MYB7 Nuclear Trafficking to Establish a Self-Reinforcing Circuit for ABA Response. Plants 2026, 15, 1596. https://doi.org/10.3390/plants15111596

AMA Style

Tang Z, Yang J, Chen Y, Zhang Y, Cai J, Wang D, He R, Zhu Y. The Long Intergenic Noncoding RNA ARTA Specifically Regulates MYB7 Nuclear Trafficking to Establish a Self-Reinforcing Circuit for ABA Response. Plants. 2026; 15(11):1596. https://doi.org/10.3390/plants15111596

Chicago/Turabian Style

Tang, Zhengmin, Jun Yang, Yanhang Chen, Yongdi Zhang, Jingjing Cai, Dong Wang, Reqing He, and Youlin Zhu. 2026. "The Long Intergenic Noncoding RNA ARTA Specifically Regulates MYB7 Nuclear Trafficking to Establish a Self-Reinforcing Circuit for ABA Response" Plants 15, no. 11: 1596. https://doi.org/10.3390/plants15111596

APA Style

Tang, Z., Yang, J., Chen, Y., Zhang, Y., Cai, J., Wang, D., He, R., & Zhu, Y. (2026). The Long Intergenic Noncoding RNA ARTA Specifically Regulates MYB7 Nuclear Trafficking to Establish a Self-Reinforcing Circuit for ABA Response. Plants, 15(11), 1596. https://doi.org/10.3390/plants15111596

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