Arabidopsis NAC domain proteins VND-INTERACTING1 and ANAC103 interact with multiple NAC domain proteins

Yamaguchi, Masatoshi; Nagahage, Isura Sumeda Priyadarshana; Ohtani, Misato; Ishikawa, Toshiki; Uchimiya, Hirofumi; Kawai‐Yamada, Maki; Demura, Taku

doi:10.5511/plantbiotechnology.15.0208a

Cited by 13 publications

(15 citation statements)

References 27 publications

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“…As a drought-tolerant crop with a high water demand, a powerful vascular system is essential for watermelon to maintain its water status to keep homeostasis under water-deficit conditions. Moreover, increasing evidence indicates that NAC TFs play important roles in the development of vascular tissues 2 25 44 46 , as well as in the adaptation of plants to land 26 . To determine the functions of ClNAC TFs in the development of vascular system, we analyzed the normalized expression of ClNAC TFs using published transcriptome sequencing data 45 .…”

Section: Resultsmentioning

confidence: 99%

Global Expressions Landscape of NAC Transcription Factor Family and Their Responses to Abiotic Stresses in Citrullus lanatus

Lan

Guy

et al. 2016

Sci Rep

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Watermelon (Citrullus lanatus) is one xerophyte that has relative higher tolerance to drought and salt stresses as well as more sensitivity to cold stress, compared with most model plants. These characteristics facilitate it a potential model crop for researches on salt, drought or cold tolerance. In this study, a genome-wide comprehensive analysis of the ClNAC transcription factor (TF) family was carried out for the first time, to investigate their transcriptional profiles and potential functions in response to these abiotic stresses. The expression profiling analysis reveals that several NAC TFs are highly responsive to abiotic stresses and development, for instance, subfamily IV NACs may play roles in maintaining water status under drought or salt conditions, as well as water and metabolites conduction and translocation toward fruit. In contrast, rapid and negative responses of most of the ClNACs to low-temperature adversity may be related to the sensitivity to cold stress. Crosstalks among these abiotic stresses and hormone (abscisic acid and jasmonic acid) pathways were also discussed based on the expression of ClNAC genes. Our results will provide useful insights for the functional mining of NAC family in watermelon, as well as into the mechanisms underlying abiotic tolerance in other cash crops.

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Section: Resultsmentioning

confidence: 99%

Global Expressions Landscape of NAC Transcription Factor Family and Their Responses to Abiotic Stresses in Citrullus lanatus

Lan

Guy

et al. 2016

Sci Rep

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“…VNI2 acts solely as a transcriptional repressor and inhibits transcriptional activation activities of AtVND7 and xylem vessel cell differentiation, probably through direct interaction via the NAC domain regions (Yamaguchi et al, 2010b ). A Recent work also reported ANAC103 as a possible interactor with AtVND7 in vascular tissues (Yamaguchi et al, in press ). Taken together with the fact that proteasome-mediated proteolysis actively regulates AtVND7 (Yamaguchi et al, 2008 ), these findings show that multiple layers of regulation also affect AtVND7 at the protein level.…”

Section: The Function Of Nac (Nam Ataf12 and Cuc2) Proteins In Scw mentioning

confidence: 93%

NAC-MYB-based transcriptional regulation of secondary cell wall biosynthesis in land plants

et al. 2015

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Plant cells biosynthesize primary cell walls (PCW) in all cells and produce secondary cell walls (SCWs) in specific cell types that conduct water and/or provide mechanical support, such as xylem vessels and fibers. The characteristic mechanical stiffness, chemical recalcitrance, and hydrophobic nature of SCWs result from the organization of SCW-specific biopolymers, i.e., highly ordered cellulose, hemicellulose, and lignin. Synthesis of these SCW-specific biopolymers requires SCW-specific enzymes that are regulated by SCW-specific transcription factors. In this review, we summarize our current knowledge of the transcriptional regulation of SCW formation in plant cells. Advances in research on SCW biosynthesis during the past decade have expanded our understanding of the transcriptional regulation of SCW formation, particularly the functions of the NAC and MYB transcription factors. Focusing on the NAC-MYB-based transcriptional network, we discuss the regulatory systems that evolved in land plants to modify the cell wall to serve as a key component of structures that conduct water and provide mechanical support.

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“…First, to investigate whether ATAF2 has transcriptional activation activity, an effector was created by fusing ATAF2 to a GAL4-DNA-binding domain (GAL4-BD-ATAF2) ( Figure 1). ATAF2 cDNA was subcloned into the pENTR/D-TOPO vector (Thermo Fisher Scientific, https://www.thermofisher.com), and then integrated into pA35BDG, a GATEWAY destination vector, which contains the GAL4-BD driven by the cauliflower mosaic virus 35S promoter (CaMV35S) (Yamaguchi et al 2015). The GATEWAY destination vector containing the multi-cloning site (MCS) fragment was used as a control (Yamaguchi et al 2008).…”

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confidence: 99%

An NAC domain transcription factor ATAF2 acts as transcriptional activator or repressor dependent on promoter context

Nagahage

Sakamoto

Nagano

et al. 2018

Plant Biotechnology

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The ARABIDOPSIS THALIANA ACTIVATION FACTOR 2 (ATAF2) protein has been demonstrated to be involved in various biological processes including biotic stress responses, photo morphogenesis, and auxin catabolism. However, the transcriptional function of ATAF2 currently remains elusive. Therefore, to further understand the molecular function of ATAF2, we evaluated the transcriptional activities of ATAF2 using a transient assay system in this study. We used an effector consisting of a GAL4-DNA binding domain (GAL4-BD) fused to ATAF2, and observed upregulated reporter gene expression, suggesting that ATAF2 potentially has transcriptional activation activity. ATAF2 has been shown to activate reporter gene expression under the control of the ORE1 promoter. By contrast, ATAF2 significantly repressed reporter gene expression driven by the NIT2 promoter. These data suggest that ATAF2 is a bifunctional transcription factor that can alter target gene expression depending on the promoter sequences.

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Arabidopsis NAC domain proteins VND-INTERACTING1 and ANAC103 interact with multiple NAC domain proteins

Cited by 13 publications

References 27 publications

Global Expressions Landscape of NAC Transcription Factor Family and Their Responses to Abiotic Stresses in Citrullus lanatus

Global Expressions Landscape of NAC Transcription Factor Family and Their Responses to Abiotic Stresses in Citrullus lanatus

NAC-MYB-based transcriptional regulation of secondary cell wall biosynthesis in land plants

An NAC domain transcription factor ATAF2 acts as transcriptional activator or repressor dependent on promoter context

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