NAC transcription factor SlNOR-like1 plays a dual regulatory role in tomato fruit cuticle formation

Bibliographische Detailangaben
Veröffentlicht in:	Journal of experimental botany. - 1985. - 75(2024), 7 vom: 27. März, Seite 1903-1918
1. Verfasser:	Liu, Gang-Shuai (VerfasserIn)
Weitere Verfasser:	Huang, Hua, Grierson, Donald, Gao, Ying, Ji, Xiang, Peng, Zhen-Zhen, Li, Hong-Li, Niu, Xiao-Lin, Jia, Wen, He, Jian-Lin, Xiang, Lan-Ting, Gao, Hai-Yan, Qu, Gui-Qin, Zhu, Hong-Liang, Zhu, Ben-Zhong, Luo, Yun-Bo, Fu, Da-Qi
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2024
Zugriff auf das übergeordnete Werk:	Journal of experimental botany
Schlagworte:	Journal Article Cuticle SlNOR-like1 cutin tomato fruit transcription factor wax Transcription Factors Waxes

Beschreibung
Zusammenfassung:	© The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com. The plant cuticle is an important protective barrier on the plant surface, constructed mainly by polymerized cutin matrix and a complex wax mixture. Although the pathway of plant cuticle biosynthesis has been clarified, knowledge of the transcriptional regulation network underlying fruit cuticle formation remains limited. In the present work, we discovered that tomato fruits of the NAC transcription factor SlNOR-like1 knockout mutants (nor-like1) produced by CRISPR/Cas9 [clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9] displayed reduced cutin deposition and cuticle thickness, with a microcracking phenotype, while wax accumulation was promoted. Further research revealed that SlNOR-like1 promotes cutin deposition by binding to the promoters of glycerol-3-phosphate acyltransferase6 (SlGPAT6; a key gene for cutin monomer formation) and CUTIN DEFICIENT2 (SlCD2; a positive regulator of cutin production) to activate their expression. Meanwhile, SlNOR-like1 inhibits wax accumulation, acting as a transcriptional repressor by targeting wax biosynthesis, and transport-related genes 3-ketoacyl-CoA synthase1 (SlKCS1), ECERIFERUM 1-2 (SlCER1-2), SlWAX2, and glycosylphosphatidylinositol-anchored lipid transfer protein 1-like (SlLTPG1-like). In conclusion, SlNOR-like1 executes a dual regulatory effect on tomato fruit cuticle development. Our results provide a new model for the transcriptional regulation of fruit cuticle formation
Beschreibung:	Date Completed 28.03.2024 Date Revised 28.03.2024 published: Print Citation Status MEDLINE
ISSN:	1460-2431
DOI:	10.1093/jxb/erad410