Chromatin-Based Regulation of Plant Root Development

Chen, Donghong; Huang, Yong; Jiang, Changhua; Si, Jinping

doi:10.3389/fpls.2018.01509

Cited by 21 publications

(15 citation statements)

References 120 publications

(149 reference statements)

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“…The Trx subfamily methylates H3K4 through the TrxG protein complex to activate FLC transcription (Figure ). The mutants of Trx subfamily genes ATX1‐5 , ATXR3 , and ATXR7 showed early flowering time in both long‐day and short‐day conditions . Among them, there was no significant difference between the flowering time of atx1 / atx2 double mutants and atx1 or atx2 single mutants.…”

Section: Sdgs In Floweringmentioning

confidence: 92%

“…Usually, its main functions are nutrient absorbing and water supplying under both normal and stressed environments. SDG family and histone methylation are essential for RAM maintenance and lateral roots formation during the development of roots . In sdg2 , the H3K4me3 level is reduced with a loss of auxin gradient maximum in stem cell niche (SCN) cells of roots .…”

Section: Sdgs In Plant Morphogenesismentioning

confidence: 99%

“…Even if the environment changes, the expression of the SDG gene may not alter. SDGs can bind to the target gene locus, which may lead to the changes in the expression of downstream genes …”

Section: Sdgs In Response To Stressmentioning

confidence: 99%

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The function of histone lysine methylation related SET domain group proteins in plants

et al. 2020

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Histone methylation, which is mediated by the histone lysine (K) methyltransferases (HKMTases), is a mechanism associated with many pathways in eukaryotes. Most HKMTases have a conserved SET (Su(var) 3-9,E(z), Trithorax) domain, while the HKMTases with SET domains are called the SET domain group (SDG) proteins. In plants, only SDG proteins can work as HKMTases. In this review, we introduced the classification of SDG family proteins in plants and the structural characteristics of each subfamily, surmise the functions of SDG family members in plant growth and development processes, including pollen and female gametophyte development, flowering, plant morphology and the responses to stresses. This review will help researchers better understand the SDG proteins and histone methylation in plants and lay a basic foundation for further studies on SDG proteins. K E Y W O R D Shistone lysine (K) methyltransferase, histone methylation, HKMTases, SDG protein, SET domain group

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Section: Sdgs In Floweringmentioning

confidence: 92%

Section: Sdgs In Plant Morphogenesismentioning

confidence: 99%

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The function of histone lysine methylation related SET domain group proteins in plants

et al. 2020

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“…The speed of chromatin remodelling and the resulting cell status in each plant "zone" differ markedly between species. All of the aforementioned three stages are regulated by alterations in epigenetic marks, which modify chromatin structure: a gradual histone de-acetylation with a concomitant methylation of histones at certain positions, as well as DNA methylation [19]. The prominent role of epigenetics in cellular differentiation was also pointed out by Mohn and Schübeler [20].…”

Section: Cell Differentiation and De-differentiation In Plantamentioning

confidence: 89%

“…De-differentiated cells are different from each other. There are two types of cells in planta: the slow proliferating cells in the SAM and RAM stem cell niches that have an unspecified fate, and the rapidly proliferating ones in the developing organs after cell fate has already been established [19]. Rapidly proliferating cells in roots constitute a population after cell fate has already been determined and therefore cannot give rise to all of the cell types [100].…”

Section: Types Of Cell De-differentiationmentioning

confidence: 99%

From Single Cell to Plants: Mesophyll Protoplasts as a Versatile System for Investigating Plant Cell Reprogramming

Pasternak

Lystvan

Betekhtin

et al. 2020

IJMS

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Plants are sessile organisms that have a remarkable developmental plasticity, which ensures their optimal adaptation to environmental stresses. Plant cell totipotency is an extreme example of such plasticity, whereby somatic cells have the potential to form plants via direct shoot organogenesis or somatic embryogenesis in response to various exogenous and/or endogenous signals. Protoplasts provide one of the most suitable systems for investigating molecular mechanisms of totipotency, because they are effectively single cell populations. In this review, we consider the current state of knowledge of the mechanisms that induce cell proliferation from individual, differentiated somatic plant cells. We highlight initial explant metabolic status, ploidy level and isolation procedure as determinants of successful cell reprogramming. We also discuss the importance of auxin signalling and its interaction with stress-regulated pathways in governing cell cycle induction and further stages of plant cell totipotency.

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Lateral Root Formation

Bellande

Laplaze

Guyomarc’h

2022

Encyclopedia of Life Sciences

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The underground development of the plant root system is a complex and plastic process. It enables the plants to mine hydromineral resources while dealing with changes in their environment. Root branching via lateral root formation is considered as an important trait because it greatly influences root system architecture and impacts plant growth and crop performance. In the past few years, major progresses in understanding the mechanisms of root branching have been made. Technical advances lift the veil on multiple molecular and cellular processes that contribute to the robust formation of new lateral roots in plant models and to its response to endogenous and environmental cues. Developing translational approaches should increase in the coming decades to allow a global and integrative vision of root system development and the mechanisms of root branching in various plant species. Moreover, exploring the genetic diversity that modulates this fundamental process opens the way to breeding crops with more efficient root system architectures. Key Concepts Lateral root formation significantly influences root system architecture, a key trait for plant interaction with the soil and especially, plant nutrition. Lateral root primordium initiation, development and emergence from the primary root have been well described in several plant model species. Lateral root formation is highly regulated. Many molecular mechanisms involved in this organogenesis process are known in detail, especially in the plant model Arabidopsis thaliana . Among these, the phytohormone auxin is a key regulatory signal influencing each step of lateral root formation. A complex regulatory network, integrating intercellular signals and mechanical constraints, triggers regularly spaced initiation of lateral root formation, allows robust organ patterning, and controls the lateral root primordium growth through the overlaying primary root tissues. Endogenous and environmental signals modulate lateral root formation kinetics and emergence, yielding plasticity in root system development. Comparison of lateral root development in different plant species reveals specific and conserved pathways. Genetic diversity can be explored and used to breed crops with optimised root branching properties.

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Chromatin-Based Regulation of Plant Root Development

Cited by 21 publications

References 120 publications

The function of histone lysine methylation related SET domain group proteins in plants

The function of histone lysine methylation related SET domain group proteins in plants

From Single Cell to Plants: Mesophyll Protoplasts as a Versatile System for Investigating Plant Cell Reprogramming

Lateral Root Formation

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