Coordination between two cis-elements of WRKY33, bound by the same transcription factor, confers humid adaption in Arabidopsis thaliana

Abstract To cope with flooding-induced hypoxia, plants have evolved different strategies. Molecular strategies, such as the N-degron pathway and transcriptional regulation, are known to be crucial for Arabidopsis thaliana’s hypoxia response. Our study uncovered a novel molecular strategy that involves a single transcription factor interacting with two identical cis-elements, one located in the promoter region and the other within the intron. This unique double-element adjustment mechanism has seldom been reported in previous studies. In humid areas, WRKY70 plays a crucial role in A. thaliana’s adaptation to submergence-induced hypoxia by binding to identical cis-elements in both the promoter and intron regions of WRKY33. This dual binding enhances WRKY33 expression and the activation of hypoxia-related genes. Conversely, in arid regions lacking the promoter cis-element, WRKY70 only binds to the intron cis-element, resulting in limited WRKY33 expression during submergence stress. The presence of a critical promoter cis-element in humid accessions, but not in dry accessions, indicates a coordinated regulation enabling A. thaliana to adapt and thrive in humid habitats..

Key message A coordination strategy between two cis-elements of WRKY33 regulated by the same transcription factor, WRKY70, promotes humid adaption of A. thaliana..

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:114

Enthalten in:

Plant molecular biology - 114(2024), 2 vom: 19. März

Sprache:

Englisch

Beteiligte Personen:

Liu, Bao [VerfasserIn]
Zheng, Yudan [VerfasserIn]
Lou, Shangling [VerfasserIn]
Liu, Meng [VerfasserIn]
Wang, Weiwei [VerfasserIn]
Feng, Xiaoqin [VerfasserIn]
Zhang, Han [VerfasserIn]
Song, Yan [VerfasserIn]
Liu, Huanhuan [VerfasserIn]

Links:

Volltext [lizenzpflichtig]

BKL:

42.43

48.58

Themen:

Dark submergence
Humid areas
Intronic regulation
Transcriptional regulation
WRKY70

Anmerkungen:

© The Author(s), under exclusive licence to Springer Nature B.V. 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

doi:

10.1007/s11103-024-01428-x

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

SPR055209165