Histone H2B Monoubiquitination Mediated by HISTONE MONOUBIQUITINATION1 and HISTONE MONOUBIQUITINATION2 Is Involved in Anther Development by Regulating Tapetum Degradation-Related Genes in Rice

Cao, Hong; Li, Xiaoying; Wang, Zhi; Ding, Mingjun; Sun, Yanfeng; Dong, Fengqin; Chen, Fengying; Liu, Lian; Doughty, James; Li, Yong; Liu, Yong Xiu

doi:10.1104/pp.114.256578

Cited by 53 publications

(53 citation statements)

References 90 publications

(125 reference statements)

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“…H2Bub1 plays critical roles in regulating growth and development (Fleury et al ; Liu et al ; Cao et al ; Gu et al ; Schmitz et al ; Xu et al ; Bourbousse et al ; Himanen et al ; Cao et al ), as well as in modulating defence or immune responses and in cuticle composition in plants (Devoto et al ; Dhawan et al ; Hu et al ; Menard et al ; Zou et al ). In the present study, we demonstrated that H2Bub1 played an important role in response to salt stress.…”

Section: Discussionmentioning

confidence: 99%

“…hub1 and hub2 mutants show the loss of H2Bub1 (Liu et al 2007;Cao et al 2008;Bourbousse et al 2012;Himanen et al 2012;Zou et al 2014). Multiple developmental processes and responses to biotic stress have been suggested to be closely related to H2Bub1 in plants, such as seed dormancy and leaf and root growth (Fleury et al 2007;Liu et al 2007), control of flowering time and plant development (Cao et al 2008;Gu et al 2009;Schmitz et al 2009;Xu et al 2009;Cao et al 2015), photomorphogenesis and the circadian clock (Bourbousse et al 2012;Himanen et al 2012), and defence or immune responses and cuticle composition (Dhawan et al 2009;Menard et al 2014;Zou et al 2014). Moreover, we previously demonstrated that H2Bub1 was involved in modulating microtubule (MT) disassembly during biotic stress (Hu et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Histone H2B monoubiquitination regulates salt stress‐induced microtubule depolymerization in Arabidopsis

Zhou

Chen

Sun

et al. 2017

Plant Cell & Environment

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Histone H2B monoubiquitination (H2Bub1) is recognized as a regulatory mechanism that controls a range of cellular processes. We previously showed that H2Bub1 was involved in responses to biotic stress in Arabidopsis. However, the molecular regulatory mechanisms of H2Bub1 in controlling responses to abiotic stress remain limited. Here, we report that HISTONE MONOUBIQUITINATION1 (HUB1) and HUB2 played important regulatory roles in response to salt stress. Phenotypic analysis revealed that H2Bub1 mutants confer decreased tolerance to salt stress. Further analysis showed that H2Bub1 regulated the depolymerization of microtubules (MTs), the expression of PROTEIN TYROSINE PHOSPHATASE1 (PTP1) and MAP KINASE PHOSPHATASE (MKP) genes - DsPTP1, MKP1, IBR5, PHS1, and was required for the activation of mitogen-activated protein kinase3 (MAP kinase3, MPK3) and MPK6 in response to salt stress. Moreover, both tyrosine phosphorylation and the activation of MPK3 and MPK6 affected MT stability in salt stress response. Thus, the results indicate that H2Bub1 regulates salt stress-induced MT depolymerization, and the PTP-MPK3/6 signalling module is responsible for integrating signalling pathways that regulate MT stability, which is critical for plant salt stress tolerance.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Histone H2B monoubiquitination regulates salt stress‐induced microtubule depolymerization in Arabidopsis

Zhou

Chen

Sun

et al. 2017

Plant Cell & Environment

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“…Thus, reduced acetylation might be implicated in the cytological changes of aleurone cell death. DNA methylation and histone monoubiquitination have been shown to play an important role in regulating PCD in tapetum (Solís et al, 2014;Cao et al, 2015).…”

Section: Discussion Hdacs Are Necessary For Inducing the Ga-initiatedmentioning

confidence: 99%

Histone Deacetylase Is Required for GA-Induced Programmed Cell Death in Maize Aleurone Layers

et al. 2017

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Recent discoveries have shown that epigenetic regulation is an integral part of phytohormone-mediated processes. The phytohormone gibberellin (GA) triggers a series of events in cereal aleurone cells that lead to programmed cell death (PCD), but the signaling cascade mediating GA-induced PCD in cereal aleurone layers remains largely unknown. Here, we showed that histone deacetylase (HDAC) activity gradually increased relative to histone acetyltransferase (HAT) activity, leading to a global decrease in histone H3 and H4 acetylation levels during PCD of maize (Zea mays) embryoless aleurone layers after 3 d of treatment with GA. HDAC inhibition prevented GA-induced PCD in embryoless aleurone cells, whereas HAT inhibition resulted in PCD even in the absence of GA. Hydrogen peroxide concentrations increased in GA-or HAT inhibitor-treated aleurone cells due to reduced levels of reactive oxygen species scavengers. Hydrogen peroxide-treated aleurone cells showed no changes in the activity or expression of HATs and HDACs. We show that it is possible to predict whether epigenetic modification enzymes serve as a regulator of the GA-triggered PCD signaling pathway in maize aleurone layers. Taken together, these findings reveal that HDAC activity is required for GA-induced PCD in maize aleurone layers and regulates PCD via the reactive oxygen species-mediated signal transduction pathway.

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“…Characterization of the hub1, hub2, hub1hub2 and ubc1ubc2 mutants has revealed that H2Bub1 regulates multiple processes, including cell cycle and plant growth (Fleury et al, 2007;Lolas et al, 2010), seed dormancy (Liu et al, 2007), leaf cuticle formation (M enard et al, 2014), flowering (Cao et al, 2008;Gu et al, 2009;Xu et al, 2009), circadian clock and photomorphogenesis (Bourbousse et al, 2012;Himanen et al, 2012), as well as plant defense (Dhawan et al, 2009;Zou et al, 2014). More recent studies have demonstrated that knockdown of HUB1/HUB2 in tomato also affects plant response to pathogens (Zhang et al, 2015) and loss of HUB1/HUB2 in rice leads to early heading, dwarfism and anther developmental defects (Cao et al, 2015). Impaired deposition of H3K4me3 or H3K36me3 also affects a range of plant growth and developmental processes (for a recent review, see Fletcher, 2017).…”

Section: Introductionmentioning

confidence: 99%

Interactive and noninteractive roles of histone H2B monoubiquitination and H3K36 methylation in the regulation of active gene transcription and control of plant growth and development

et al. 2018

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Covalent modifications of histones are essential to control a wide range of processes during development and adaptation to environmental changes. With the establishment of reference epigenomes, patterns of histone modifications were correlated with transcriptionally active or silenced genes. These patterns imply the need for the precise and dynamic coordination of different histone-modifying enzymes to control transcription at a given gene. Classically, the influence of these enzymes on gene expression is examined separately and their interplays rarely established. In Arabidopsis, HISTONE MONOUBIQUITINATION2 (HUB2) mediates H2B monoubiquitination (H2Bub1), whereas SET DOMAIN GROUP8 (SDG8) catalyzes H3 lysine 36 trimethylation (H3K36me3). In this work, we crossed hub2 with sdg8 mutants to elucidate their functional relationships. Despite similar phenotypic defects, sdg8 and hub2 mutations broadly affect genome transcription and plant growth and development synergistically. Also, whereas H3K4 methylation appears largely dependent on H2Bub1, H3K36me3 and H2Bub1 modifications mutually reinforce each other at some flowering time genes. In addition, SDG8 and HUB2 jointly antagonize the increase of the H3K27me3 repressive mark. Collectively, our data provide an important insight into the interplay between histone marks and highlight their interactive complexity in regulating chromatin landscape which might be necessary to fine-tune transcription and ensure plant developmental plasticity.

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Histone H2B Monoubiquitination Mediated by HISTONE MONOUBIQUITINATION1 and HISTONE MONOUBIQUITINATION2 Is Involved in Anther Development by Regulating Tapetum Degradation-Related Genes in Rice

Cited by 53 publications

References 90 publications

Histone H2B monoubiquitination regulates salt stress‐induced microtubule depolymerization in Arabidopsis

Histone H2B monoubiquitination regulates salt stress‐induced microtubule depolymerization in Arabidopsis

Histone Deacetylase Is Required for GA-Induced Programmed Cell Death in Maize Aleurone Layers

Interactive and noninteractive roles of histone H2B monoubiquitination and H3K36 methylation in the regulation of active gene transcription and control of plant growth and development

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