Binding of the transcription factor MYC2-like to the ABRE of the OsCYP2 promoter enhances salt tolerance in Oryza sativa

Liu, Hongbo; Cui, Peng; Zhang, Bingxin; Zhu, Jinbo; Liu, Cui; Li, Qingyang

doi:10.1371/journal.pone.0276075

Cited by 10 publications

(4 citation statements)

References 34 publications

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“…Thus, Sirvan has more potent antioxidative activities than Moghan3 in drought conditions. Under salinity stress, MYC2 - like overexpression reportedly enhances salt tolerance in transformants through several physiochemical responses, including increases in proline accumulation and SOD, POD, and CAT activities ( Liu et al., 2022 ). Similarly, TaMYC2 responds to abiotic (cold, drought, alkali and salt) stresses and increases tolerance in Caucasian Clover ( Trifolium ambiguum M.…”

Section: Discussionmentioning

confidence: 99%

Potential role of the regulatory miR1119-MYC2 module in wheat (Triticum aestivum L.) drought tolerance

Shamloo‐Dashtpagerdi¹,

Shahriari²,

Tahmasebi

et al. 2023

Front. Plant Sci.

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MicroRNA (miRNA)-target gene modules are essential components of plants’ abiotic stress signalling pathways Little is known about the drought-responsive miRNA-target modules in wheat, but systems biology approaches have enabled the prediction of these regulatory modules and systematic study of their roles in responses to abiotic stresses. Using such an approach, we sought miRNA-target module(s) that may be differentially expressed under drought and non-stressed conditions by mining Expressed Sequence Tag (EST) libraries of wheat roots and identified a strong candidate (miR1119-MYC2). We then assessed molecular and physiochemical differences between two wheat genotypes with contrasting drought tolerance in a controlled drought experiment and assessed possible relationships between their tolerance and evaluated traits. We found that the miR1119-MYC2 module significantly responds to drought stress in wheat roots. It is differentially expressed between the contrasting wheat genotypes and under drought versus non-stressed conditions. We also found significant associations between the module’s expression profiles and ABA hormone content, water relations, photosynthetic activities, H2O2 levels, plasma membrane damage, and antioxidant enzyme activities in wheat. Collectively, our results suggest that a regulatory module consisting of miR1119 and MYC2 may play an important role in wheat’s drought tolerance.

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Section: Discussionmentioning

confidence: 99%

Potential role of the regulatory miR1119-MYC2 module in wheat (Triticum aestivum L.) drought tolerance

Shamloo‐Dashtpagerdi¹,

Shahriari²,

Tahmasebi

et al. 2023

Front. Plant Sci.

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“…In addition, regulatory elements in most HKT genes in S. alterniflora have more ABRE elements than in rice and Arabidopsis. Previous studies have shown that the ABRE element is involved in the salt stress response of plants (Liu et al, 2022;Narusaka et al, 2003;Zhang et al, 2022). It is plausible that the increased number of ABREs confers elevated salt tolerance to S. alterniflora.…”

Section: Gene Duplication Promoted the Expansion Of Hktsmentioning

confidence: 99%

Deep learning‐enabled discovery and characterization of HKT genes in Spartina alterniflora

et al. 2023

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SUMMARYSpartina alterniflora is a halophyte that can survive in high‐salinity environments, and it is phylogenetically close to important cereal crops, such as maize and rice. It is of scientific interest to understand why S. alterniflora can live under such extremely stressful conditions. The molecular mechanism underlying its high‐saline tolerance is still largely unknown. Here we investigated the possibility that high‐affinity K+ transporters (HKTs), which function in salt tolerance and maintenance of ion homeostasis in plants, are responsible for salt tolerance in S. alterniflora. To overcome the imprecision and unstable of the gene screening method caused by the conventional sequence alignment, we used a deep learning method, DeepGOPlus, to automatically extract sequence and protein characteristics from our newly assemble S. alterniflora genome to identify SaHKTs. Results showed that a total of 16 HKT genes were identified. The number of S. alterniflora HKTs (SaHKTs) is larger than that in all other investigated plant species except wheat. Phylogenetically related SaHKT members had similar gene structures, conserved protein domains and cis‐elements. Expression profiling showed that most SaHKT genes are expressed in specific tissues and are differentially expressed under salt stress. Yeast complementation expression analysis showed that type I members SaHKT1;2, SaHKT1;3 and SaHKT1;8 and type II members SaHKT2;1, SaHKT2;3 and SaHKT2;4 had low‐affinity K+ uptake ability and that type II members showed stronger K+ affinity than rice and Arabidopsis HKTs, as well as most SaHKTs showed preference for Na+ transport. We believe the deep learning‐based methods are powerful approaches to uncovering new functional genes, and the SaHKT genes identified are important resources for breeding new varieties of salt‐tolerant crops.

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“…An overexpression transformant of this transcription factor showed higher antioxidant enzyme activity in reactive oxygen species clearance. It is speculated that MYC2-like can improve the resistance to salt stress by improving the antioxidant enzyme activity and post-translational regulation of transformed plants [ 75 ]. The ICE1-CBF transcriptional cascade plays central roles in cold tolerance and cold acclimation in plants, and JAZ interacts with ICE to block the ICE-CBF pathway [ 76 , 77 ].…”

Section: Myc Is Involved In the Regulation Of Biotic And Abiotic Stre...mentioning

confidence: 99%

MYC2: A Master Switch for Plant Physiological Processes and Specialized Metabolite Synthesis

Luo

Wang

Qiu

et al. 2023

IJMS

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The jasmonic acid (JA) signaling pathway plays important roles in plant defenses, development, and the synthesis of specialized metabolites synthesis. Transcription factor MYC2 is a major regulator of the JA signaling pathway and is involved in the regulation of plant physiological processes and specialized metabolite synthesis. Based on our understanding of the mechanism underlying the regulation of specialized metabolite synthesis in plants by the transcription factor MYC2, the use of synthetic biology approaches to design MYC2-driven chassis cells for the synthesis of specialized metabolites with high medicinal value, such as paclitaxel, vincristine, and artemisinin, seems to be a promising strategy. In this review, the regulatory role of MYC2 in JA signal transduction of plants to biotic and abiotic stresses, plant growth, development and specialized metabolite synthesis is described in detail, which will provide valuable reference for the use of MYC2 molecular switches to regulate plant specialized metabolite biosynthesis.

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Binding of the transcription factor MYC2-like to the ABRE of the OsCYP2 promoter enhances salt tolerance in Oryza sativa

Cited by 10 publications

References 34 publications

Potential role of the regulatory miR1119-MYC2 module in wheat (Triticum aestivum L.) drought tolerance

Potential role of the regulatory miR1119-MYC2 module in wheat (Triticum aestivum L.) drought tolerance

Deep learning‐enabled discovery and characterization of HKT genes in Spartina alterniflora

MYC2: A Master Switch for Plant Physiological Processes and Specialized Metabolite Synthesis

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