ICE1 (Inducer of CBF Expression 1) Is Essential for the Jasmonate‐Regulated Development of Stamen in Arabidopsis thaliana DOI Open Access
Yuke Li, Jinfeng Xu,

Man Xu

et al.

Plant Cell & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 19, 2025

ABSTRACT Floral organ development, pollen germination and tube growth are crucial for plant sexual reproduction. Phytohormones maintain these processes by regulating the expression activity of various transcription factors. ICE1, a MYC‐like bHLH factor, has been revealed to be involved in cold acclimatisation Arabidopsis. This study shows that ICE1 regulates multiple aspects reproduction, including stamen development germination. Loss‐of‐function mutants exhibit floral organs with shorter filaments, defective anther dehiscence lower viability compared wild type. These abnormalities result disrupted fertilisation, leading short siliques, high rate seed abortion, dark, shriveled mature seeds. JAZ proteins (JAZ1 JAZ9) interact inhibiting its transcriptional on jasmonic acid (JA)‐responsive genes, MYB21 , MYB24 MYB108 . highlights essential role as signalling agent JA‐regulated maintenance reproduction Arabidopsis thaliana

Language: Английский

ICE1 (Inducer of CBF Expression 1) Is Essential for the Jasmonate‐Regulated Development of Stamen in Arabidopsis thaliana DOI Open Access
Yuke Li, Jinfeng Xu,

Man Xu

et al.

Plant Cell & Environment, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 19, 2025

ABSTRACT Floral organ development, pollen germination and tube growth are crucial for plant sexual reproduction. Phytohormones maintain these processes by regulating the expression activity of various transcription factors. ICE1, a MYC‐like bHLH factor, has been revealed to be involved in cold acclimatisation Arabidopsis. This study shows that ICE1 regulates multiple aspects reproduction, including stamen development germination. Loss‐of‐function mutants exhibit floral organs with shorter filaments, defective anther dehiscence lower viability compared wild type. These abnormalities result disrupted fertilisation, leading short siliques, high rate seed abortion, dark, shriveled mature seeds. JAZ proteins (JAZ1 JAZ9) interact inhibiting its transcriptional on jasmonic acid (JA)‐responsive genes, MYB21 , MYB24 MYB108 . highlights essential role as signalling agent JA‐regulated maintenance reproduction Arabidopsis thaliana

Language: Английский

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