A salt-stress-regulator from the Poplar R2R3 MYB family integrates the regulation of lateral root emergence and ABA signaling to mediate salt stress tolerance in Arabidopsis

Fang, Qing; Jiang, Tianzhi; Xu, Liangxiang; Liu, Hai; Mao, Hui Z.; Wang, Xinqiang; Jiao, Bo; Duan, Yumin; Wang, Qiong; Dong, Qiannan; Yang, Li; Guo-zheng, Tian; Zhang, Chi; Zhou, Yunshan; Liu, Xiaopeng; Wang, Haiyang; Fan, Di; Wang, Bangjun; Luo, Keming

doi:10.1016/j.plaphy.2017.02.018

Cited by 50 publications

(26 citation statements)

References 60 publications

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“…Besides, a very recent study identified two R2R3 MYB proteins, MYB88 and MYB124 involved in promoting H 2 O 2 detoxification and anthocyanin accumulation in apple under cold stress, suggesting their role in mediating cold tolerance [ 41 ]. Similarly, Fang et al [ 111 ] also reported that the poplar ( Populus tremula ) PtrSSR1 gene, a member of R2R3 MYB family, is involved in elevating endogenous ABA content that leads to faster induction of lateral root emergence in transgenic Arabidopsis lines under salt stress, indicating that PtrSSR1 correlates with the regulation of LRE and ABA signaling to impart salt tolerance. In transgenic Arabidopsis, the decreased osmotic potential and elevated levels of peroxidase and proline content in response to salt stress were attributed to overexpression of the PacMYBA gene from sweet cherry ( Prunus avium ) [ 42 ].…”

Section: Transcription Factors Involved In Abiotic Stress Responsementioning

confidence: 99%

Revisiting the Role of Plant Transcription Factors in the Battle against Abiotic Stress

Khan

Wang

et al. 2018

IJMS

191

118

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Owing to diverse abiotic stresses and global climate deterioration, the agricultural production worldwide is suffering serious losses. Breeding stress-resilient crops with higher quality and yield against multiple environmental stresses via application of transgenic technologies is currently the most promising approach. Deciphering molecular principles and mining stress-associate genes that govern plant responses against abiotic stresses is one of the prerequisites to develop stress-resistant crop varieties. As molecular switches in controlling stress-responsive genes expression, transcription factors (TFs) play crucial roles in regulating various abiotic stress responses. Hence, functional analysis of TFs and their interaction partners during abiotic stresses is crucial to perceive their role in diverse signaling cascades that many researchers have continued to undertake. Here, we review current developments in understanding TFs, with particular emphasis on their functions in orchestrating plant abiotic stress responses. Further, we discuss novel molecular mechanisms of their action under abiotic stress conditions. This will provide valuable information for understanding regulatory mechanisms to engineer stress-tolerant crops.

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Section: Transcription Factors Involved In Abiotic Stress Responsementioning

confidence: 99%

Revisiting the Role of Plant Transcription Factors in the Battle against Abiotic Stress

Khan

Wang

et al. 2018

IJMS

191

118

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“…It also increased lignin deposition and secondary cell wall thickness by directly activating the expression of genes involved secondary cell wall biosynthesis ( Guo et al, 2017 ). The overexpression of a Populus trichocarpa ( PtrSSR1 ) salt-stress-regulator in Arabidopsis clearly inhibited lateral root emergence (LRE) and improved salt stress tolerance by integrating the regulation of LRE and abscisic acid (ABA) signaling ( Fang et al, 2017 ). Other functions of MYBs include control of cellular morphogenesis, regulation of secondary metabolism, secondary cell wall biosynthesis and meristem formation as key players in plant regulatory network ( Nakano et al, 2015 ; Wang W. et al, 2016 ; Lloyd et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

The R2R3MYB Gene Family in Phyllostachys edulis: Genome-Wide Analysis and Identification of Stress or Development-Related R2R3MYBs

Hou¹,

Cheng²,

Xie³

et al. 2018

Front. Plant Sci.

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The MYB transcription factor (TF) is one of the largest gene families in plants and involved to multiple biological processes. However, little is known about the MYB family and its functional role in the genome of moso bamboo. In the present study, a total of 114 R2R3MYB genes were first identified from moso bamboo genome and full-length non-chimeric (FLNC) reads. Phylogenetic analysis coupled with gene structure analysis and motif determination resulted in the division of these PheR2R3MYBs into 17 subgroups. The position of eight proteins along an external branch in the phylogenetic tree suggested their relatively ancient origin. The genes in this group were all substituted by (Met, M)/(Arg, R) at conservative W residues in both R2 and R3 repeats, and half were found to possess no transcriptional activation activity. The analysis of evolutionary patterns and divergence suggests that the expansion of PheMYBs was mainly attributable to whole genome duplication (WGD) under different selection pressures. Expressional analysis based on microarray and qRT-PCR data performed diverse expression patterns of R2R3MYBs in response to both various abiotic stimuli and flower development. Furthermore, the co-expression analysis of R2R3MYBs suggested an intricate interplay of growth- and stress-related responses. Finally, we found a hub gene, PheMYB4, was involved in a complex proteins interaction network. Further functional analysis indicated that ectopic overexpression of its homologous gene, PheMYB4-1, could increase tolerance to cold treatment and sensitivity to drought and salt treatment of transgenic Arabidopsis seedlings. These findings provide comprehensive insights into the MYB family members in moso bamboo and offer candidate MYB genes for further studies on their roles in stress resistance.

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“…OsFLA24 and AtFLA1/2/8 were also signi cantly reduced following ABA treatment [8,9]. Many of the frequently predicted TFs in the NbFLAs, including C2H2, Dof and Myb, have been reported to play a role in the ABA pathway [45][46][47][48] and therefore, as in other species, NbFLAs may be regulated by the ABA pathway. While the function of FLAs in the signaling pathway during abiotic stresses has been investigated, little is known about their potential role in response to pathogens.…”

Section: Discussionmentioning

confidence: 84%

Fasciclin-like arabinogalactan gene family in Nicotiana benthamiana: genome-wide identification, classification and expression in response to pathogens

Lai

et al. 2020

Preprint

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Abstract Background: Nicotiana benthamiana is widely used as a model plant to study plant-pathogen interactions. Fasciclin-like arabinogalactan proteins (FLAs), a subclass of arabinogalactan proteins (AGPs), participate in mediating plant growth, development and response to abiotic stress. However, the members of FLAs in N. benthamiana and their response to plant pathogens are unknown.Results: 38 NbFLAs were identified from a genome-wide study. NbFLAs could be divided into four subclasses, and their gene structure and motif composition were conserved in each subclass. NbFLAs may be regulated by cis-acting elements such as STRE and MBS, and may be the targets of transcription factors like C2H2. Quantitative real time polymerase chain reaction (RT-qPCR) results showed that selected NbFLAs were differentially expressed in different tissues. All of the selected NbFLAs were significantly downregulated following infection by turnip mosaic virus (TuMV) and most of them also by Pseudomonas syringae pv tomato strain DC3000 (Pst DC3000), suggesting possible roles in response to pathogenic infection.Conclusions: This study systematically identified FLAs in N. benthamiana, and indicates their potential roles in response to biotic stress. The identification of NbFLAs will facilitate further studies of their role in plant immunity in N. benthamiana.

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A salt-stress-regulator from the Poplar R2R3 MYB family integrates the regulation of lateral root emergence and ABA signaling to mediate salt stress tolerance in Arabidopsis

Cited by 50 publications

References 60 publications

Revisiting the Role of Plant Transcription Factors in the Battle against Abiotic Stress

Revisiting the Role of Plant Transcription Factors in the Battle against Abiotic Stress

The R2R3MYB Gene Family in Phyllostachys edulis: Genome-Wide Analysis and Identification of Stress or Development-Related R2R3MYBs

Fasciclin-like arabinogalactan gene family in Nicotiana benthamiana: genome-wide identification, classification and expression in response to pathogens

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