MIW1 participates in ABA signaling through the regulation of MYB30 in Arabidopsis

Zhan, Qidi; Shen, Jialu; Nie, Kaili; Zheng, Yuan

doi:10.1016/j.plantsci.2023.111717

Cited by 5 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, overexpression of rice OsPYL5 and grape VaPYL4 enhances salt tolerance in Arabidopsis, respectively [ 31 , 32 ]. Various transcription factors, such as ABF, act downstream of SnRK2 to regulate the synthesis of compatible osmolytes in response to salt stress [ 33 , 34 ]. As a growth-promoting hormone, IAA regulates root developmental plasticity, which is considered a key adaptive trait in the plant response to abiotic stresses [ 35 , 36 ].…”

Section: Discussionmentioning

confidence: 99%

Transcriptome Profiling Reveals Molecular Responses to Salt Stress in Common Vetch (Vicia sativa L.)

Sun,

Zhao,

Sun

et al. 2024

Plants

View full text Add to dashboard Cite

Common vetch (Vicia sativa L.) is an important annual diploid leguminous forage. In the present study, transcriptomic profiling in common vetch in response to salt stress was conducted using a salt-tolerant line (460) and a salt-sensitive line (429). The common responses in common vetch and the specific responses associated with salt tolerance in 460 were analyzed. Several KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways, including plant hormone and MAPK (mitogen-activated protein kinase) signaling, galactose metabolism, and phenylpropanoid phenylpropane biosynthesis, were enriched in both lines, though some differentially expressed genes (DEGs) showed distinct expression patterns. The roots in 460 showed higher levels of lignin than in 429. α-linolenic acid metabolism, carotenoid biosynthesis, the photosynthesis-antenna pathway, and starch and sucrose metabolism pathways were specifically enriched in salt-tolerant line 460, with higher levels of accumulated soluble sugars in the leaves. In addition, higher transcript levels of genes involved in ion homeostasis and reactive oxygen species (ROS) scavenging were observed in 460 than in 429 in response to salt stress. The transcriptomic analysis in common vetch in response to salt stress provides useful clues for further investigations on salt tolerance mechanism in the future.

show abstract

Section: Discussionmentioning

confidence: 99%

Transcriptome Profiling Reveals Molecular Responses to Salt Stress in Common Vetch (Vicia sativa L.)

Sun,

Zhao,

Sun

et al. 2024

Plants

View full text Add to dashboard Cite

show abstract

Insights into plant salt stress signaling and tolerance

Zhou,

Shi,

Yang

et al. 2024

Journal of Genetics and Genomics

View full text Add to dashboard Cite

S-nitrosylation of the transcription factor MYB30 facilitates nitric oxide–promoted seed germination in Arabidopsis

Zhao,

Ma,

Shen

et al. 2023

The Plant Cell

View full text Add to dashboard Cite

The gaseous signaling molecule nitric oxide (NO) plays an important role in breaking seed dormancy. NO induces a decrease in abscisic acid (ABA) content by transcriptionally activating its catabolic enzyme, the ABA 8′-hydroxylase CYP707A2. However, the underlying mechanism of this process remains unclear. Here, we report that the transcription factor MYB30 plays a critical role in NO-induced seed germination in Arabidopsis (Arabidopsis thaliana). MYB30 loss-of-function attenuates NO-mediated seed dormancy breaking. MYB30 triggers a NO-induced decrease in ABA content during germination by directly promoting CYP707A2 expression. NO induces S-nitrosylation at Cys-49 of MYB30 and enhances its transcriptional activity. Conversely, the ABA receptors PYRABACTIN RESISTANCE1 (PYR1)/PYR1-LIKE (PYL)/REGULATORY COMPONENTS OF ABA RECEPTORS (RCAR) interact with MYB30 and repress its transcriptional activity. ABA promotes the interaction between PYL4 and MYB30, whereas S-nitrosylation releases the PYL4-mediated inhibition of MYB30 by interfering with the PYL4-MYB30 interaction. Genetic analysis showed that MYB30 functions downstream of PYLs during seed dormancy and germination in response to NO. Furthermore, MYB30 mutation significantly represses the reduced dormancy phenotype and the enhanced CYP707A2 expression of the pyr1 pyl1 pyl2 pyl4 quadruple mutant. Our findings reveal that S-nitrosylation of MYB30 precisely regulates the balance of seed dormancy and germination, providing insights into the underlying mechanism of NO-promoted seed germination.

show abstract

MIW1 participates in ABA signaling through the regulation of MYB30 in Arabidopsis

Cited by 5 publications

References 35 publications

Transcriptome Profiling Reveals Molecular Responses to Salt Stress in Common Vetch (Vicia sativa L.)

Transcriptome Profiling Reveals Molecular Responses to Salt Stress in Common Vetch (Vicia sativa L.)

Insights into plant salt stress signaling and tolerance

S-nitrosylation of the transcription factor MYB30 facilitates nitric oxide–promoted seed germination in Arabidopsis

Contact Info

Product

Resources

About