1
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Imai S, Hirozawa H, Sugahara S, Ishizaki C, Higuchi M, Matsushita Y, Suzuki T, Mochizuki N, Nagatani A, Ueguchi C. The CRK14 gene encoding a cysteine-rich receptor-like kinase is implicated in the regulation of global proliferative arrest in Arabidopsis thaliana. Genes Cells 2024; 29:735-745. [PMID: 38938200 PMCID: PMC11447833 DOI: 10.1111/gtc.13139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/14/2024] [Accepted: 06/14/2024] [Indexed: 06/29/2024]
Abstract
Global proliferative arrest (GPA) is a phenomenon in monocarpic plants in which the activity of all aboveground meristems generally ceases in a nearly coordinated manner after the formation of a certain number of fruits. Despite the fact that GPA is a biologically and agriculturally important event, the underlying molecular mechanisms are not well understood. In this study, we attempted to elucidate the molecular mechanism of GPA regulation by identifying the gene responsible for the Arabidopsis mutant fireworks (fiw), causing an early GPA phenotype. Map-based cloning revealed that the fiw gene encodes CYSTEIN-RICH RECEPTOR-LIKE KINASE 14 (CRK14). Genetic analysis suggested that fiw is a missense, gain-of-function allele of CRK14. Since overexpression of the extracellular domain of CRK14 resulted in delayed GPA in the wild-type background, we concluded that CRK14 is involved in GPA regulation. Analysis of double mutants revealed that fiw acts downstream of or independently of the FRUITFULL-APETALA2 (AP2)/AP2-like pathway, which was previously reported as an age-dependent default pathway in GPA regulation. In addition, fiw is epistatic to clv with respect to GPA control. Furthermore, we found a negative effect on WUSCHEL expression in the fiw mutants. These results thus suggest the existence of a novel CRK14-dependent signaling pathway involved in GPA regulation.
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Affiliation(s)
- Sho Imai
- Laboratory of Plant Cell Function, Graduate school of Bioagricultural SciencesNagoya UniversityNagoyaJapan
| | - Hikaru Hirozawa
- Laboratory of Plant Cell Function, Graduate school of Bioagricultural SciencesNagoya UniversityNagoyaJapan
| | - Shingo Sugahara
- Laboratory of Plant Cell Function, Graduate school of Bioagricultural SciencesNagoya UniversityNagoyaJapan
| | - Chisato Ishizaki
- Laboratory of Plant Cell Function, Graduate school of Bioagricultural SciencesNagoya UniversityNagoyaJapan
| | - Mayu Higuchi
- Laboratory of Plant Cell Function, Graduate school of Bioagricultural SciencesNagoya UniversityNagoyaJapan
| | - Yuma Matsushita
- Laboratory of Plant Cell Function, Graduate school of Bioagricultural SciencesNagoya UniversityNagoyaJapan
| | - Takamasa Suzuki
- College of Bioscience and BiotechnologyChubu UniversityKasugaiJapan
| | | | - Akira Nagatani
- Department of Botany, Graduate School of ScienceKyoto UniversityKyotoJapan
| | - Chiharu Ueguchi
- Laboratory of Plant Cell Function, Graduate school of Bioagricultural SciencesNagoya UniversityNagoyaJapan
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2
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Ando E, Taki K, Suzuki T, Kinoshita T. A novel semi-dominant mutation in brassinosteroid signaling kinase1 increases stomatal density. FRONTIERS IN PLANT SCIENCE 2024; 15:1377352. [PMID: 38628368 PMCID: PMC11019013 DOI: 10.3389/fpls.2024.1377352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Accepted: 02/27/2024] [Indexed: 04/19/2024]
Abstract
Stomata play a pivotal role in balancing CO2 uptake for photosynthesis and water loss via transpiration. Thus, appropriate regulation of stomatal movement and its formation are crucial for plant growth and survival. Red and blue light induce phosphorylation of the C-terminal residue of the plasma membrane (PM) H+-ATPase, threonine, in guard cells, generating the driving force for stomatal opening. While significant progress has been made in understanding the regulatory mechanism of PM H+-ATPase in guard cells, the regulatory components for the phosphorylation of PM H+-ATPase have not been fully elucidated. Recently, we established a new immunohistochemical technique for detecting guard-cell PM H+-ATPase phosphorylation using leaves, which was expected to facilitate investigations with a single leaf. In this study, we applied the technique to genetic screening experiment to explore novel regulators for the phosphorylation of PM H+-ATPase in guard cells, as well as stomatal development. We successfully performed phenotyping using a single leaf. During the experiment, we identified a mutant exhibiting high stomatal density, jozetsu (jzt), named after a Japanese word meaning 'talkative'. We found that a novel semi-dominant mutation in BRASSINOSTEROID SIGNALING KINASE1 (BSK1) is responsible for the phenotype in jzt mutant. The present results demonstrate that the new immunohistochemical technique has a wide range of applications, and the novel mutation would provide genetic tool to expand our understanding of plant development mediated by brassinosteroid signaling.
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Affiliation(s)
- Eigo Ando
- Division of Biological Science, Graduate School of Science, Nagoya University, Nagoya, Aichi, Japan
| | - Kyomi Taki
- Institute of Transformative Bio-Molecules, Nagoya University, Nagoya, Aichi, Japan
| | - Takamasa Suzuki
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, Kasugai, Aichi, Japan
| | - Toshinori Kinoshita
- Division of Biological Science, Graduate School of Science, Nagoya University, Nagoya, Aichi, Japan
- Institute of Transformative Bio-Molecules, Nagoya University, Nagoya, Aichi, Japan
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3
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Yoshimura R, Minamikawa S, Suzuki T, Goto K, Latrasse D, Sicar S, Raynaud C, Benhamed M, Yoshioka Y. CRUMPLED LEAF supports plastid OUTER ENVELOPE PROTEIN OF 80 KDA complex formation in Arabidopsis. PLANT PHYSIOLOGY 2024; 194:2422-2433. [PMID: 38235762 DOI: 10.1093/plphys/kiae005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 01/19/2024]
Abstract
Embedded β-barrel proteins in the outer envelope membrane mediate most cellular trafficking between the cytoplasm and plastids. Although the TRANSLOCON AT THE OUTER ENVELOPE MEMBRANE OF CHLOROPLASTS 75-V (TOC75-V)/OUTER ENVELOPE PROTEIN OF 80 KDA (OEP80) complex has been implicated in the insertion and assembly of β-barrel proteins in the outer envelope membrane of Arabidopsis (Arabidopsis thaliana) chloroplasts, relatively little is known about this process. CRUMPLED LEAF (CRL) encodes a chloroplast outer envelope membrane-localized protein, and its loss-of-function mutation results in pleiotropic defects, including altered plant morphogenesis, growth retardation, suppression of plastid division, and spontaneous light intensity-dependent localized cell death. A suppressor screen conducted on mutagenized crl mutants revealed that a missense mutation in OEP80 suppresses the pleiotropic defects of crl. Furthermore, we found that OEP80 complex formation is compromised in crl. Additionally, we demonstrated that CRL interacts with OEP80 in vivo and that a portion of CRL is present at the same molecular weight as the OEP80 complex. Our results suggest that CRL interacts with OEP80 to facilitate its complex formation. CRL is involved in plastid protein import; therefore, the pleiotropic defects in crl are likely due to the combined effects of decreased plastid protein import and altered membrane integration of β-barrel proteins in the outer envelope membrane. This study sheds light on the mechanisms that allow β-barrel protein integration into the plastid outer envelope membrane and the importance of this finding for plant cellular processes.
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Affiliation(s)
- Ryo Yoshimura
- Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Syun Minamikawa
- Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Takamasa Suzuki
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
| | - Kotaro Goto
- Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - David Latrasse
- CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris-Saclay, 91405 Orsay, France
- CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Université de Paris, 91405 Orsay, France
| | - Sanchari Sicar
- CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris-Saclay, 91405 Orsay, France
- CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Université de Paris, 91405 Orsay, France
| | - Cécile Raynaud
- CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris-Saclay, 91405 Orsay, France
- CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Université de Paris, 91405 Orsay, France
| | - Moussa Benhamed
- CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), Université Paris-Saclay, 91405 Orsay, France
- CNRS, INRAE, Institute of Plant Sciences Paris-Saclay (IPS2), Université de Paris, 91405 Orsay, France
- Institut Universitaire de France (IUF)
| | - Yasushi Yoshioka
- Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
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4
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Ta KN, Yoshida MW, Tezuka T, Shimizu-Sato S, Nosaka-Takahashi M, Toyoda A, Suzuki T, Goshima G, Sato Y. Control of Plant Cell Growth and Proliferation by MO25A, a Conserved Major Component of the Mammalian Sterile 20-Like Kinase Pathway. PLANT & CELL PHYSIOLOGY 2023; 64:336-351. [PMID: 36639938 PMCID: PMC10016325 DOI: 10.1093/pcp/pcad005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 01/07/2023] [Accepted: 01/12/2023] [Indexed: 05/22/2023]
Abstract
The precise control of cell growth and proliferation underpins the development of plants and animals. These factors affect the development and size of organs and the body. In plants, the growth and proliferation of cells are regulated by environmental stimuli and intrinsic signaling, allowing different cell types to have specific growth and proliferation characteristics. An increasing number of factors that control cell division and growth have been identified. However, the mechanisms underlying cell type-specific cell growth and proliferation characteristics in the normal developmental context are poorly understood. Here, we analyzed the rice mutant osmo25a1, which is defective in the progression of embryogenesis. The osmo25a1 mutant embryo developed incomplete embryonic organs, such as the shoot and root apical meristems. It showed a delayed progression of embryogenesis, associated with the reduced mitotic activity. The causal gene of this mutation encodes a member of the Mouse protein-25A (MO25A) family of proteins that have pivotal functions in a signaling pathway that governs cell proliferation and polarity in animals, yeasts and filamentous fungi. To elucidate the function of plant MO25A at the cellular level, we performed a functional analysis of MO25A in the moss Physcomitrium patens. Physcomitrium patens MO25A was uniformly distributed in the cytoplasm and functioned in cell tip growth and the initiation of cell division in stem cells. Overall, we demonstrated that MO25A proteins are conserved factors that control cell proliferation and growth.
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Affiliation(s)
- Kim Nhung Ta
- Department of Genome and Evolutionary Biology, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540 Japan
| | - Mari W Yoshida
- Department of Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Japan
| | - Takumi Tezuka
- Department of Genetics, School of Life Science, SOKENDAI (Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka, 411-8540 Japan
| | - Sae Shimizu-Sato
- Department of Genome and Evolutionary Biology, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540 Japan
| | - Misuzu Nosaka-Takahashi
- Department of Genome and Evolutionary Biology, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540 Japan
- Department of Genetics, School of Life Science, SOKENDAI (Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka, 411-8540 Japan
| | - Atsushi Toyoda
- Department of Genome and Evolutionary Biology, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540 Japan
| | - Takamasa Suzuki
- College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501 Japan
| | - Gohta Goshima
- Department of Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Japan
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, 429-63 Sugashima, Toba, 517-0004 Japan
| | - Yutaka Sato
- Department of Genome and Evolutionary Biology, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540 Japan
- Department of Genetics, School of Life Science, SOKENDAI (Graduate University for Advanced Studies), 1111 Yata, Mishima, Shizuoka, 411-8540 Japan
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5
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Hossain MF, Dutta AK, Suzuki T, Higashiyama T, Miyamoto C, Ishiguro S, Maruta T, Muto Y, Nishimura K, Ishida H, Aboulela M, Hachiya T, Nakagawa T. Targeted expression of bgl23-D, a dominant-negative allele of ATCSLD5, affects cytokinesis of guard mother cells and exine formation of pollen in Arabidopsis thaliana. PLANTA 2023; 257:64. [PMID: 36811672 DOI: 10.1007/s00425-023-04097-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
Targeted expression of bgl23-D, a dominant-negative allele of ATCSLD5, is a useful genetic approach for functional analysis of ATCSLDs in specific cells and tissues in plants. Stomata are key cellular structures for gas and water exchange in plants and their development is influenced by several genes. We found the A. thaliana bagel23-D (bgl23-D) mutant showing abnormal bagel-shaped single guard cells. The bgl23-D was a novel dominant mutation in the A. thaliana cellulose synthase-like D5 (ATCSLD5) gene that was reported to function in the division of guard mother cells. The dominant character of bgl23-D was used to inhibit ATCSLD5 function in specific cells and tissues. Transgenic A. thaliana expressing bgl23-D cDNA with the promoter of stomata lineage genes, SDD1, MUTE, and FAMA, showed bagel-shaped stomata as observed in the bgl23-D mutant. Especially, the FAMA promoter exhibited a higher frequency of bagel-shaped stomata with severe cytokinesis defects. Expression of bgl23-D cDNA in the tapetum with SP11 promoter or in the anther with ATSP146 promoter induced defects in exine pattern and pollen shape, novel phenotypes that were not shown in the bgl23-D mutant. These results indicated that bgl23-D inhibited unknown ATCSLD(s) that exert the function of exine formation in the tapetum. Furthermore, transgenic A. thaliana expressing bgl23-D cDNA with SDD1, MUTE, and FAMA promoters showed enhanced rosette diameter and increased leaf growth. Taken together, these findings suggest that the bgl23-D mutation could be a helpful genetic tool for functional analysis of ATCSLDs and manipulating plant growth.
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Affiliation(s)
- Md Firose Hossain
- Department of Molecular and Functional Genomics, Interdisciplinary Center for Science Research, Shimane University, Matsue, 690-8504, Japan
- Bioresource and Life Sciences, The United Graduate School of Agricultural Sciences, Tottori University, Tottori, 680-8550, Japan
| | - Amit Kumar Dutta
- Department of Molecular and Functional Genomics, Interdisciplinary Center for Science Research, Shimane University, Matsue, 690-8504, Japan
- Department of Microbiology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Takamasa Suzuki
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, Kasugai, 487-8501, Japan
| | - Tetsuya Higashiyama
- Department of Biological Sciences, Graduate School of Science, University of Tokyo, Tokyo, 113-0033, Japan
| | - Chiharu Miyamoto
- Department of Applied Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Sumie Ishiguro
- Department of Applied Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Takanori Maruta
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue, 690-8504, Japan
- Department of Life Sciences, Faculty of Life and Environmental Sciences, Shimane University, Matsue, 690-8504, Japan
| | - Yuki Muto
- Department of Molecular and Functional Genomics, Interdisciplinary Center for Science Research, Shimane University, Matsue, 690-8504, Japan
| | - Kohji Nishimura
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue, 690-8504, Japan
- Department of Life Sciences, Faculty of Life and Environmental Sciences, Shimane University, Matsue, 690-8504, Japan
| | - Hideki Ishida
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue, 690-8504, Japan
- Department of Life Sciences, Faculty of Life and Environmental Sciences, Shimane University, Matsue, 690-8504, Japan
| | - Mostafa Aboulela
- Department of Molecular and Functional Genomics, Interdisciplinary Center for Science Research, Shimane University, Matsue, 690-8504, Japan
- Department of Botany and Microbiology, Faculty of Science, Assiut University, Assiut, Egypt
| | - Takushi Hachiya
- Department of Molecular and Functional Genomics, Interdisciplinary Center for Science Research, Shimane University, Matsue, 690-8504, Japan
- Bioresource and Life Sciences, The United Graduate School of Agricultural Sciences, Tottori University, Tottori, 680-8550, Japan
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue, 690-8504, Japan
| | - Tsuyoshi Nakagawa
- Department of Molecular and Functional Genomics, Interdisciplinary Center for Science Research, Shimane University, Matsue, 690-8504, Japan.
- Bioresource and Life Sciences, The United Graduate School of Agricultural Sciences, Tottori University, Tottori, 680-8550, Japan.
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue, 690-8504, Japan.
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6
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Inoue S, Hayashi M, Huang S, Yokosho K, Gotoh E, Ikematsu S, Okumura M, Suzuki T, Kamura T, Kinoshita T, Ma JF. A tonoplast-localized magnesium transporter is crucial for stomatal opening in Arabidopsis under high Mg 2+ conditions. THE NEW PHYTOLOGIST 2022; 236:864-877. [PMID: 35976788 PMCID: PMC9804957 DOI: 10.1111/nph.18410] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
Plant stomata play an important role in CO2 uptake for photosynthesis and transpiration, but the mechanisms underlying stomatal opening and closing under changing environmental conditions are still not completely understood. Through large-scale genetic screening, we isolated an Arabidopsis mutant (closed stomata2 (cst2)) that is defective in stomatal opening. We cloned the causal gene (MGR1/CST2) and functionally characterized this gene. The mutant phenotype was caused by a mutation in a gene encoding an unknown protein with similarities to the human magnesium (Mg2+ ) efflux transporter ACDP/CNNM. MGR1/CST2 was localized to the tonoplast and showed transport activity for Mg2+ . This protein was constitutively and highly expressed in guard cells. Knockout of this gene resulted in stomatal closing, decreased photosynthesis and growth retardation, especially under high Mg2+ conditions, while overexpression of this gene increased stomatal opening and tolerance to high Mg2+ concentrations. Furthermore, guard cell-specific expression of MGR1/CST2 in the mutant partially restored its stomatal opening. Our results indicate that MGR1/CST2 expression in the leaf guard cells plays an important role in maintaining cytosolic Mg2+ concentrations through sequestering Mg2+ into vacuoles, which is required for stomatal opening, especially under high Mg2+ conditions.
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Affiliation(s)
- Shin‐ichiro Inoue
- Division of Biological Science, Graduate School of ScienceNagoya UniversityFuro‐cho, Chikusa‐kuNagoyaAichi464‐8602Japan
| | - Maki Hayashi
- Division of Biological Science, Graduate School of ScienceNagoya UniversityFuro‐cho, Chikusa‐kuNagoyaAichi464‐8602Japan
| | - Sheng Huang
- Institute of Plant Science and ResourcesOkayama UniversityChuo 2‐20‐1Kurashiki710‐0046Japan
| | - Kengo Yokosho
- Institute of Plant Science and ResourcesOkayama UniversityChuo 2‐20‐1Kurashiki710‐0046Japan
| | - Eiji Gotoh
- Department of Forest Environmental Sciences, Faculty of AgricultureKyushu University744 MotookaFukuoka819‐0395Japan
| | - Shuka Ikematsu
- Institute of Transformative Bio‐Molecules (WPI‐ITbM)Nagoya UniversityFuro‐cho, ChikusaNagoya464‐8602Japan
| | - Masaki Okumura
- Division of Biological Science, Graduate School of ScienceNagoya UniversityFuro‐cho, Chikusa‐kuNagoyaAichi464‐8602Japan
| | - Takamasa Suzuki
- Department of Biological Chemistry, College of Bioscience and BiotechnologyChubu UniversityKasugai‐shiAichi487‐8501Japan
| | - Takumi Kamura
- Division of Biological Science, Graduate School of ScienceNagoya UniversityFuro‐cho, Chikusa‐kuNagoyaAichi464‐8602Japan
| | - Toshinori Kinoshita
- Division of Biological Science, Graduate School of ScienceNagoya UniversityFuro‐cho, Chikusa‐kuNagoyaAichi464‐8602Japan
- Institute of Transformative Bio‐Molecules (WPI‐ITbM)Nagoya UniversityFuro‐cho, ChikusaNagoya464‐8602Japan
| | - Jian Feng Ma
- Institute of Plant Science and ResourcesOkayama UniversityChuo 2‐20‐1Kurashiki710‐0046Japan
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7
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Nozawa K, Masuda S, Saze H, Ikeda Y, Suzuki T, Takagi H, Tanaka K, Ohama N, Niu X, Kato A, Ito H. Epigenetic regulation of ecotype-specific expression of the heat-activated transposon ONSEN. FRONTIERS IN PLANT SCIENCE 2022; 13:899105. [PMID: 35923888 PMCID: PMC9340270 DOI: 10.3389/fpls.2022.899105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 06/29/2022] [Indexed: 06/07/2023]
Abstract
Transposable elements are present in a wide variety of organisms; however, our understanding of the diversity of mechanisms involved in their activation is incomplete. In this study, we analyzed the transcriptional activation of the ONSEN retrotransposon, which is activated by high-temperature stress in Arabidopsis thaliana. We found that its transcription is significantly higher in the Japanese ecotype Kyoto. Considering that transposons are epigenetically regulated, DNA methylation levels were analyzed, revealing that CHH methylation was reduced in Kyoto compared to the standard ecotype, Col-0. A mutation was also detected in the Kyoto CMT2 gene, encoding a CHH methyltransferase, suggesting that it may be responsible for increased expression of ONSEN. CHH methylation is controlled by histone modifications through a self-reinforcing loop between DNA methyltransferase and histone methyltransferase. Analysis of these modifications revealed that the level of H3K9me2, a repressive histone marker for gene expression, was lower in Kyoto than in Col-0. The level of another repressive histone marker, H3K27me1, was decreased in Kyoto; however, it was not impacted in a Col-0 cmt2 mutant. Therefore, in addition to the CMT2 mutation, other factors may reduce repressive histone modifications in Kyoto.
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Affiliation(s)
- Kosuke Nozawa
- Graduate School of Life Sciences, Hokkaido University, Sapporo, Japan
| | - Seiji Masuda
- Graduate School of Life Sciences, Hokkaido University, Sapporo, Japan
| | - Hidetoshi Saze
- Plant Epigenetics Unit, Okinawa Institute of Science and Technology, Onna-son, Japan
| | - Yoko Ikeda
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Takamasa Suzuki
- College of Bioscience and Biotechnology, Chubu University, Kasugai, Japan
| | - Hiroki Takagi
- Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University, Nonoichi, Japan
| | - Keisuke Tanaka
- NODAI Genome Research Center, Tokyo University of Agriculture, Setagaya-ku, Japan
| | - Naohiko Ohama
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Japan
| | - Xiaoying Niu
- Graduate School of Life Sciences, Hokkaido University, Sapporo, Japan
| | - Atsushi Kato
- Faculty of Science, Hokkaido University, Sapporo, Japan
| | - Hidetaka Ito
- Faculty of Science, Hokkaido University, Sapporo, Japan
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8
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Misawa F, Ito M, Nosaki S, Nishida H, Watanabe M, Suzuki T, Miura K, Kawaguchi M, Suzaki T. Nitrate transport via NRT2.1 mediates NIN-LIKE PROTEIN-dependent suppression of root nodulation in Lotus japonicus. THE PLANT CELL 2022; 34:1844-1862. [PMID: 35146519 PMCID: PMC9048892 DOI: 10.1093/plcell/koac046] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 02/01/2022] [Indexed: 05/12/2023]
Abstract
Legumes have adaptive mechanisms that regulate nodulation in response to the amount of nitrogen in the soil. In Lotus japonicus, two NODULE INCEPTION (NIN)-LIKE PROTEIN (NLP) transcription factors, LjNLP4 and LjNLP1, play pivotal roles in the negative regulation of nodulation by controlling the expression of symbiotic genes in high nitrate conditions. Despite an improved understanding of the molecular basis for regulating nodulation, how nitrate plays a role in the signaling pathway to negatively regulate this process is largely unknown. Here, we show that nitrate transport via NITRATE TRANSPORTER 2.1 (LjNRT2.1) is a key step in the NLP signaling pathway to control nodulation. A mutation in the LjNRT2.1 gene attenuates the nitrate-induced control of nodulation. LjNLP1 is necessary and sufficient to induce LjNRT2.1 expression, thereby regulating nitrate uptake/transport. Our data suggest that LjNRT2.1-mediated nitrate uptake/transport is required for LjNLP4 nuclear localization and induction/repression of symbiotic genes. We further show that LjNIN, a positive regulator of nodulation, counteracts the LjNLP1-dependent induction of LjNRT2.1 expression, which is linked to a reduction in nitrate uptake. These findings suggest a plant strategy in which nitrogen acquisition switches from obtaining nitrogen from the soil to symbiotic nitrogen fixation.
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Affiliation(s)
- Fumika Misawa
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Momoyo Ito
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Shohei Nosaki
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Tsukuba Plant-Innovation Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hanna Nishida
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan
| | - Masahiro Watanabe
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takamasa Suzuki
- College of Bioscience and Biotechnology, Chubu University, Kasugai, Aichi, Japan
| | - Kenji Miura
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Tsukuba Plant-Innovation Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masayoshi Kawaguchi
- National Institute for Basic Biology, Okazaki, Aichi, Japan
- School of Life Science, Graduate University for Advanced Studies, Okazaki, Aichi, Japan
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Suzuki T, Shinagawa T, Niwa T, Akeda H, Hashimoto S, Tanaka H, Hiroaki Y, Yamasaki F, Mishima H, Kawai T, Higashiyama T, Nakamura K. The DROL1 subunit of U5 snRNP in the spliceosome is specifically required to splice AT-AC-type introns in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 109:633-648. [PMID: 34780096 DOI: 10.1111/tpj.15582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 10/25/2021] [Accepted: 11/08/2021] [Indexed: 06/13/2023]
Abstract
An Arabidopsis mutant named defective repression of OLE3::LUC 1 (drol1) was originally isolated as a mutant with defects in the repression of OLEOSIN3 (OLE3) after seed germination. In this study, we show that DROL1 is an Arabidopsis homolog of yeast DIB1, a subunit of the U5 small nuclear ribonucleoprotein particle (snRNP) in the spliceosome. It is also part of a new subfamily that is specific to a certain class of eukaryotes. Comprehensive analysis of the intron splicing using RNA sequencing analysis of the drol1 mutants revealed that most of the minor introns with AT-AC dinucleotide termini had reduced levels of splicing. Only two nucleotide substitutions from AT-AC to GT-AG enabled AT-AC-type introns to be spliced in drol1 mutants. Forty-eight genes, including those having important roles in abiotic stress responses and cell proliferation, exhibited reduced splicing of AT-AC-type introns in the drol1 mutants. Additionally, drol1 mutant seedlings showed retarded growth, similar to that caused by the activation of abscisic acid signaling, possibly as a result of reduced AT-AC-type intron splicing in the endosomal Na+ /H+ antiporters and plant-specific histone deacetylases. These results indicate that DROL1 is specifically involved in the splicing of minor introns with AT-AC termini and that this plays an important role in plant growth and development.
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Affiliation(s)
- Takamasa Suzuki
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Tomomi Shinagawa
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Tomoko Niwa
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Hibiki Akeda
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Satoki Hashimoto
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Hideki Tanaka
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Yoko Hiroaki
- Cellular and Structural Physiology Institute (CeSPI), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan
| | - Fumiya Yamasaki
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Hiroyuki Mishima
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Tsutae Kawai
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
| | - Tetsuya Higashiyama
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8601, Japan
- Division of Biological Science, Graduate School of Science, Nagoya University, Nagoya, Aichi, 464-8602, Japan
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bukyo-ku, Tokyo, 113-0033, Japan
| | - Kenzo Nakamura
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi, 487-8501, Japan
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Takehira K, Hayashi Y, Nozawa K, Chen L, Suzuki T, Masuta Y, Kato A, Ito H. DRD1, a SWI/SNF-like chromatin remodeling protein, regulates a heat-activated transposon in Arabidopsis thaliana. Genes Genet Syst 2021; 96:151-158. [PMID: 34373369 DOI: 10.1266/ggs.21-00005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
ONSEN is a heat-activated LTR retrotransposon in Arabidopsis thaliana. Screens to identify transcriptional regulatory factors of ONSEN revealed a SWI/SNF-like chromatin remodeling protein, DRD1, which cooperates with plant-specific RNA polymerase and is involved in RNA-directed DNA methylation. ONSEN transcript level was increased in the drd1 mutant relative to wild-type under heat stress, indicating that DRD1 plays a significant role in the silencing of activated ONSEN under the stress condition. The transcript level of HsfA2, which is directly involved in transcriptional activation of ONSEN, was not higher in the drd1 mutant than in the wild-type. Interestingly, no transgenerational transposition of ONSEN was observed in the drd1 mutant, even though DNA methylation levels were significantly reduced and expression levels were increased compared to the wild-type. These results suggest that other factors are involved in the regulation of ONSEN transposition in addition to the transcript level of ONSEN.
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Affiliation(s)
| | - Yui Hayashi
- Graduate School of Life Science, Hokkaido University
| | - Kosuke Nozawa
- Graduate School of Life Science, Hokkaido University
| | - Lu Chen
- Graduate School of Life Science, Hokkaido University
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Nishida H, Nosaki S, Suzuki T, Ito M, Miyakawa T, Nomoto M, Tada Y, Miura K, Tanokura M, Kawaguchi M, Suzaki T. Different DNA-binding specificities of NLP and NIN transcription factors underlie nitrate-induced control of root nodulation. THE PLANT CELL 2021; 33:2340-2359. [PMID: 33826745 PMCID: PMC8364233 DOI: 10.1093/plcell/koab103] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 04/03/2021] [Indexed: 05/20/2023]
Abstract
Leguminous plants produce nodules for nitrogen fixation; however, nodule production incurs an energy cost. Therefore, as an adaptive strategy, leguminous plants halt root nodule development when sufficient amounts of nitrogen nutrients, such as nitrate, are present in the environment. Although legume NODULE INCEPTION (NIN)-LIKE PROTEIN (NLP) transcription factors have recently been identified, understanding how nodulation is controlled by nitrate, a fundamental question for nitrate-mediated transcriptional regulation of symbiotic genes, remains elusive. Here, we show that two Lotus japonicus NLPs, NITRATE UNRESPONSIVE SYMBIOSIS 1 (NRSYM1)/LjNLP4 and NRSYM2/LjNLP1, have overlapping functions in the nitrate-induced control of nodulation and act as master regulators for nitrate-dependent gene expression. We further identify candidate target genes of LjNLP4 by combining transcriptome analysis with a DNA affinity purification-seq approach. We then demonstrate that LjNLP4 and LjNIN, a key nodulation-specific regulator and paralog of LjNLP4, have different DNA-binding specificities. Moreover, LjNLP4-LjNIN dimerization underlies LjNLP4-mediated bifunctional transcriptional regulation. These data provide a basic principle for how nitrate controls nodulation through positive and negative regulation of symbiotic genes.
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Affiliation(s)
- Hanna Nishida
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Shohei Nosaki
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- Tsukuba Plant-Innovation Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takamasa Suzuki
- College of Bioscience and Biotechnology, Chubu University, Kasugai, Aichi, Japan
| | - Momoyo Ito
- Tsukuba Plant-Innovation Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takuya Miyakawa
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Mika Nomoto
- Center for Gene Research, Nagoya University, Nagoya, Aichi, Japan
| | - Yasuomi Tada
- Center for Gene Research, Nagoya University, Nagoya, Aichi, Japan
| | - Kenji Miura
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Tsukuba Plant-Innovation Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masaru Tanokura
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masayoshi Kawaguchi
- National Institute for Basic Biology, Okazaki, Aichi, Japan
- School of Life Science, Graduate University for Advanced Studies, Okazaki, Aichi, Japan
| | - Takuya Suzaki
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Tsukuba Plant-Innovation Research Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Author for correspondence:
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12
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Laohavisit A, Wakatake T, Ishihama N, Mulvey H, Takizawa K, Suzuki T, Shirasu K. Quinone perception in plants via leucine-rich-repeat receptor-like kinases. Nature 2020; 587:92-97. [DOI: 10.1038/s41586-020-2655-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 06/03/2020] [Indexed: 12/31/2022]
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