Nitric Oxide controls shoot meristem activity via regulation of DNA methylation

Abstract Despite the importance of Nitric Oxide (NO) as signaling molecule in both plant and animal development1–7, the regulatory mechanisms downstream of NO remain largely unclear. Here, we show that NO is involved inArabidopsisshoot stem cell control via modifying expression and activity ofARGONAUTE 4(AGO4), a core component of the RNA directed DNA Methylation (RdDM) pathway. Mutations in components of the RdDM pathway cause meristematic defects, and reduce responses of the stem cell system to NO signaling. Importantly, we found that the stem cell inducing WUSCHEL transcription factor directly interacts with AGO4 in an NO dependent manner, explaining how these two signaling systems may converge to modify DNA methylation patterns. Taken together, our results reveal that NO signaling plays an important role in controlling plant stem cell homeostasis via the regulation ofde novoDNA methylation..

Medienart:

Preprint

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

bioRxiv.org - (2024) vom: 23. Apr. Zur Gesamtaufnahme - year:2024

Sprache:

Englisch

Beteiligte Personen:

Zeng, Jian [VerfasserIn]
Zhao, Xin’Ai [VerfasserIn]
Liang, Zhe [VerfasserIn]
Hidalgo, Inés [VerfasserIn]
Gebert, Michael [VerfasserIn]
Fan, Pengfei [VerfasserIn]
Wenzl, Christian [VerfasserIn]
Gornik, Sebastian G. [VerfasserIn]
Lohmann, Jan U. [VerfasserIn]

Links:

Volltext [lizenzpflichtig]
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Themen:

570
Biology

doi:

10.1101/2023.10.06.561157

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

XBI04110983X