Root Type-Specific Reprogramming of Maize Pericycle Transcriptomes by Local High Nitrate Results in Disparate Lateral Root Branching Patterns

Yu, Peng; Baldauf, Jutta A.; Lithio, Andrew; Marcon, Caroline; Nettleton, Dan; Li, Chunjian; Hochholdinger, Frank

doi:10.1104/pp.15.01885

Cited by 48 publications

(59 citation statements)

References 70 publications

(111 reference statements)

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“…The observed increase in auxin signaling inputs after early G1 might be associated with stabilizing transcriptional regulators in preparation for the G2/M transition. These results suggest that the auxin-mediated aspects of both symmetric and asymmetric division (Himanen et al, 2002;Yu et al, 2016) may have common features.…”

Section: Discussionmentioning

confidence: 76%

“…Intimate links between cell cycle progression and auxin have been demonstrated. Specifically, auxin promotes cell cycle progression in the pericycle as an early step of lateral root formation in Arabidopsis (Himanen et al, 2002) and maize (von Behrens et al, 2011;Yu et al, 2016Yu et al, , 2015. In the developing maize leaf, increased concentrations of auxins and cytokinins were found in the rapidly dividing zone of the leaf in regions prior to cell expansion (Nelissen et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

“…In the developing maize leaf, increased concentrations of auxins and cytokinins were found in the rapidly dividing zone of the leaf in regions prior to cell expansion (Nelissen et al, 2012). Maize lateral root initiation in response to nitrate occurred through localized auxin accumulation and corresponding expression of cell-cycle promoting factors and degradation of cellcycle inhibitors (Yu et al, 2016). Auxin specifically binds and triggers the degradation of the SKP2A, which is important for the stability of the cell division transcription factors E2FC/DBP demonstrating that auxin directly modulates cell-cycle progression (Jurado et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…DII responded to both exogenous IAA applied to leaf pieces and roots as well as endogenous auxin signaling in leaves, roots, and developing tassels. The important role of auxin in maize development (Forestan and Varotto, 2012;Galli et al, 2015;McSteen, 2010;von Behrens et al, 2011;Yu et al, 2016;Zhang et al, 2014) and during the cell cycle (Del Pozo and Manzano, 2014;Himanen et al, 2002) highlights the utility of the DII marker.…”

Section: Discussionmentioning

confidence: 99%

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A DII Domain-Based Auxin Reporter Uncovers Low Auxin Signaling during Telophase and Early G1

Mir¹,

Aranda²,

Biaocchi

et al. 2016

Plant Physiol.

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A sensitive and dynamically responsive auxin signaling reporter based on the DII domain of the INDOLE-3-ACETIC ACID28 (IAA28, DII) protein from Arabidopsis (Arabidopsis thaliana) was modified for use in maize (Zea mays). The DII domain was fused to a yellow fluorescent protein and a nuclear localization sequence to simplify quantitative nuclear fluorescence signal. DII degradation dynamics provide an estimate of input signal into the auxin signaling pathway that is influenced by both auxin accumulation and F-box coreceptor concentration. In maize, the DII-based marker responded rapidly and in a dose-dependent manner to exogenous auxin via proteasome-mediated degradation. Low levels of DII-specific fluorescence corresponding to high endogenous auxin signaling occurred near vasculature tissue and the outer layer and glume primordia of spikelet pair meristems and floral meristems, respectively. In addition, high DII levels were observed in cells during telophase and early G1, suggesting that low auxin signaling at these stages may be important for cell cycle progression.

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Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

A DII Domain-Based Auxin Reporter Uncovers Low Auxin Signaling during Telophase and Early G1

Mir¹,

Aranda²,

Biaocchi

et al. 2016

Plant Physiol.

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“…In adult maize, local high nitrate induces LR initiation in shoot-borne roots of maize by PIN9-mediated auxin efflux and by auxin/SCF SKP2B -mediated repression of Kip-related proteins (KRPs), giving rise to subsequent cell-cycle activation in LRP under heterogeneous nitrate conditions (Yu P. et al, 2014; Yu et al, 2015). In addition, the cell type specific RNA-seq experiments revealed that the pericycle cells of brace roots displayed unique transcriptomic reprogramming upon heterogeneous nitrate supply, indicating a specific LR branching pattern on brace roots (Yu et al, 2016). …”

Section: Introductionmentioning

confidence: 99%

Nitrate: A Crucial Signal during Lateral Roots Development

2017

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Root plasticity is an important trait for plants to forage nutrient and adapt to survival in a complicated environment. Lateral roots (LRs) are generally more sensitive than primary roots in response to changing environmental conditions. As the main source of nitrogen for most higher plants, nitrate acting as a signal has received great attention in the regulation of LR development. In general, there are dual effects including stimulatory and inhibitory of low nitrate on LR development; while high nitrate supply has an inhibitory effect on LR development; nitrate heterogeneity also has a stimulatory effect on LR development in NO3–- rich zone. Here, we focus on recent progresses in the role of a nitrate signal in the regulation of the LRs development.

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Lateral Root Formation: Building a Meristemde novo

Trinh¹,

Laplaze²,

Guyomarc’h³

2018

Annual Plant Reviews Online

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The complex and adaptable architecture of the plant root system in soil is of paramount importance for crop growth and performance. Root growth depends on the activity of the root apical meristem, an organized population of proliferating progenitor cells continuously replenished from a stem cell niche. Root branching, which greatly contributes to root system architecture in most dicot species, consists in de novo formation of new root meristems in existing root tissues. This phenomenon illustrates the ability of plants to repeatedly generate new tissues specialized in post-embryonic continuous growth and greatly impacts the elaboration of the root system architecture and its adaptation to environmental constraints. Here, we review the recent findings and models related to lateral root organogenesis in the dicot species Arabidopsis 2 thaliana, with emphasis on the mechanisms controlling de novo root meristem formation.Experimental evidence suggests that critical regulatory modules are common between embryonic and post-embryonic root meristem organogenesis, and that the lateral root formation molecular pathway is in part common with organ regeneration from callus.

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Root Type-Specific Reprogramming of Maize Pericycle Transcriptomes by Local High Nitrate Results in Disparate Lateral Root Branching Patterns

Cited by 48 publications

References 70 publications

A DII Domain-Based Auxin Reporter Uncovers Low Auxin Signaling during Telophase and Early G1

A DII Domain-Based Auxin Reporter Uncovers Low Auxin Signaling during Telophase and Early G1

Nitrate: A Crucial Signal during Lateral Roots Development

Lateral Root Formation: Building a Meristemde novo

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