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Nguyen CT, Tran GB, Nguyen NH. Homeostasis of histone acetylation is critical for auxin signaling and root morphogenesis. PLANT MOLECULAR BIOLOGY 2020; 103:1-7. [PMID: 32088831 DOI: 10.1007/s11103-020-00985-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 02/20/2020] [Indexed: 05/24/2023]
Abstract
The auxin signaling and root morphogenesis are harmoniously controlled by two counteracted teams including (1) auxin/indole-3-acetic acid (AUX/IAA)-histone deacetylase (HDA) and (2) auxin response factor (ARF)-histone acetyltransferase (HAT). The involvement of histone acetylation in the regulation of transcription was firstly reported a few decades ago. In planta, auxin is the first hormone group that was discovered and it is also the most studied phytohormone. Current studies have elucidated the functions of histone acetylation in the modulation of auxin signaling as well as in the regulation of root morphogenesis under both normal and stress conditions. Based on the recent outcomes, this review is to provide a hierarchical view about the functions of histone acetylation in auxin signaling and root morphogenesis. In this report, we suggest that the auxin signaling must be controlled harmoniously by two counteracted teams including (1) auxin/indole-3-acetic acid (AUX/IAA)-histone deacetylase (HDA) and (2) auxin response factor (ARF)-histone acetyltransferase (HAT). Moreover, the balance in auxin signaling is very critical to contribute to normal root morphogenesis.
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Affiliation(s)
- Cuong Thach Nguyen
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Gia-Buu Tran
- Department of Biotechnology, Institute of Biotechnology and Food-Technology, Industrial University of Ho Chi Minh City, 12 Nguyen Van Bao Street, Ward 4, Go Vap District, Ho Chi Minh City, Vietnam
| | - Nguyen Hoai Nguyen
- Faculty of Biotechnology, Ho Chi Minh City Open University, 97 Vo Van Tan Street, District 3, Ho Chi Minh City, Vietnam.
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Polosoro A, Enggarini W, Ohmido N. Global epigenetic changes of histone modification under environmental stresses in rice root. Chromosome Res 2019; 27:287-298. [PMID: 31280458 DOI: 10.1007/s10577-019-09611-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/09/2019] [Accepted: 06/11/2019] [Indexed: 01/11/2023]
Abstract
Abiotic stresses are non-living factors with negative morphological and physiological effects on living organisms. Substantial evidence exists that gene expression changes during plant cell growth are regulated by chromatin reconfiguration and histone modification. Several types of histone modifications are dramatically transformed in stress-responsive gene regions under drought stress conditions. Environmental stresses also cause the root apical meristem (RAM) region to decelerate root growth. In this study, we investigated how quantitative changes in epigenetic markers in this region influence rice morphology and physiology. Both iron and salinity treatments changed the epigenetic landscape from euchromatic to heterochromatic according to heterochromatin (H3K9me2) and euchromatin (H3K4me) markers, especially in the proximal meristem region. Moreover, supplementation with external abscisic acid (ABA) was able to mimic the effect of environmental stresses on global epigenetic changes. In contrast, the addition of external auxin (IAA) to rice under saline conditions affected heterochromatin formation without influencing euchromatin transformation. Chromatin dynamics is therefore believed to be directly connected to plant growth regulator signaling. We discuss insights into the role of plant growth regulators: ABA and IAA, peroxide signaling, and their effects on the global epigenetic change of histone modification under abiotic stresses.
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Affiliation(s)
- Aqwin Polosoro
- Indonesian Center for Agricultural Biotechnology and Genetic Resource Research and Development (ICABIOGRD), Bogor, Indonesia.,Graduate School of Human Development and Environment, Kobe University, Kobe, Japan
| | - Wening Enggarini
- Indonesian Center for Agricultural Biotechnology and Genetic Resource Research and Development (ICABIOGRD), Bogor, Indonesia
| | - Nobuko Ohmido
- Graduate School of Human Development and Environment, Kobe University, Kobe, Japan.
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Zhang Q, Wang P, Hou H, Zhang H, Tan J, Huang Y, Li Y, Wu J, Qiu Z, Li L. Histone acetylation and reactive oxygen species are involved in the preprophase arrest induced by sodium butyrate in maize roots. PROTOPLASMA 2017; 254:167-179. [PMID: 26781092 DOI: 10.1007/s00709-015-0928-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 12/09/2015] [Indexed: 05/22/2023]
Abstract
Histone acetylation plays a critical role in controlling chromatin structure, and reactive oxygen species (ROS) are involved in cell cycle progression. To study the relationship between histone acetylation and cell cycle progression in plants, sodium butyrate (NaB), a histone deacetylase (HDAC) inhibitor that can cause a significant increase in histone acetylation in both mammal and plant genomes, was applied to treat maize seedlings. The results showed that NaB had significant inhibition effects on different root zones at the tissue level and caused cell cycle arrest at preprophase in the root meristem zones. This effect was accompanied by a dramatic increase in the total level of acetylated lysine 9 on histone H3 (H3K9ac) and acetylated lysine 5 on histone H4 (H4K5ac). The exposure of maize roots in NaB led to a continuous rise of intracellular ROS concentration, accompanied by a higher electrolyte leakage ratio and malondialdehyde (MDA) relative value. The NaB-treated group displayed negative results in both TdT-mediated dUTP nick end labelling (TUNEL) and γ-H2AX immunostaining assays. The expression of topoisomerase genes was reduced after treatment with NaB. These results suggested that NaB increased the levels of H3K9ac and H4K5ac and could cause preprophase arrest accompanied with ROS formation leading to the inhibition of DNA topoisomerase.
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Affiliation(s)
- Qi Zhang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Pu Wang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Haoli Hou
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Hao Zhang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Junjun Tan
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
- Synergy Innovation Center of Biological Peptide Antidiabetics of Hubei Province, Engineering Technology Research Center of Biological Peptide Antidiabetics of Hubei Province, Department of Pharmaceutical Engineering, School of Life Science, Wuchang University of Technology, Wuhan, China
| | - Yan Huang
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Yingnan Li
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Jinping Wu
- Industrial Crops Institute of Hubei Academy of Agricultural Sciences, No. 43, Nanhu Road, Hongshan District, Wuhan City, Hubei Province, China
| | - Zhengming Qiu
- Industrial Crops Institute of Hubei Academy of Agricultural Sciences, No. 43, Nanhu Road, Hongshan District, Wuhan City, Hubei Province, China
| | - Lijia Li
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan, 430072, China.
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