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Kawada M, Shimazu A, Miyanaka D, Tokita M, Sakakibara K, Mori N, Hamsyah F, Yuheng L, Shojima K, Schaufeli WB. Boredom and engagement at work: do they have different antecedents and consequences? Ind Health 2024; 62:110-122. [PMID: 37766571 PMCID: PMC10995674 DOI: 10.2486/indhealth.2023-0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023]
Abstract
This study aimed to demonstrate the empirical distinctiveness of boredom at work and work engagement in relation to their potential antecedents (job demands and job resources) and consequences (psychological distress and turnover intention) based on the Job Demands-Resources model. A three-wave longitudinal survey was conducted among registered monitors of an Internet survey company in Japan. The questionnaire included scales for boredom at work, work engagement, psychological distress, and turnover intention as well as participants' job characteristics and demographic variables. The hypothesized model was evaluated via structural equation modeling with 1,019 participants who were employed full-time. As expected, boredom at work was negatively associated with quantitative job demands and job resources and positively associated with psychological distress and turnover intention. In contrast, work engagement was positively associated with job resources and negatively associated with turnover intention. Thus, boredom at work and work engagement had different potential antecedents and were inversely related to employee well-being and organizational outcomes. However, contrary to expectations, qualitative job demands were not significantly associated with boredom at work. Further investigation is needed to understand the relationship between boredom and qualitative job demands, which require sustained cognitive load and the use of higher skills.
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Affiliation(s)
- Michiko Kawada
- Graduate School of Media and Governance, Keio University, Japan
| | | | - Daisuke Miyanaka
- Faculty of Policy Management, Keio University, Japan
- Better Options, Inc., Japan
| | | | - Keiko Sakakibara
- Department of Social Psychology, Faculty of Sociology, Toyo University, Japan
| | - Naana Mori
- Keio Research Institute at SFC, Keio University, Japan
- Department of Advanced Biomedical Research, Faculty of Medicine, University of Yamanashi, Japan
| | - Fuad Hamsyah
- Graduate School of Media and Governance, Keio University, Japan
- Faculty of Psychology, Universitas Gadjah Mada, Indonesia
| | - Lin Yuheng
- Jiangxi College of Foreign Studies, China
| | - Kojiro Shojima
- Research Division, National Center for University Entrance Examinations, Japan
| | - Wilmar B Schaufeli
- Department of Psychology, Utrecht University, Netherlands
- Research Unit Occupational & Organizational Psychology and Professional Learning, Katholieke Universiteit Leuven, Belgium
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Yoro E, Sakakibara K. Sexual reproduction: Is the genetic pathway for female germ cell specification conserved in land plants? Curr Biol 2024; 34:R241-R244. [PMID: 38531316 DOI: 10.1016/j.cub.2024.01.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Land plants share several core factors responsible for female gametophyte development, despite their differing structures and developmental programs. New work providing molecular dissection of reproductive phases in non-angiosperm plants is a powerful tool for elucidating the underlying genetic network.
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Affiliation(s)
- Emiko Yoro
- Department of Life Science, Rikkyo University, Tokyo 171-8501, Japan.
| | - Keiko Sakakibara
- Department of Life Science, Rikkyo University, Tokyo 171-8501, Japan
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Mori N, Miyanaka D, Tokita M, Kawada M, Sakakibara K, Hamsyah F, Yuheng L, Shimazu A. Job demands and temporomandibular disorders: mediating and moderating effects of psychological distress and recovery experiences. J Occup Health 2024; 66:uiad001. [PMID: 38258933 PMCID: PMC10963059 DOI: 10.1093/joccuh/uiad001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 01/24/2024] Open
Abstract
OBJECTIVES This study examined the relationship between recovery experience, job demands, psychological distress, and temporomandibular disorders (TMD) in Japanese workers. METHODS It used cross-sectional data from the fourth survey of a multi-wave longitudinal project, conducted using the registered monitors of an internet research company. Finally, 1278 respondents' data were analyzed (655 males, 623 females; mean [SD] age = 41.63 [10.31] years). We utilized Sugiaski's TMD screening question to assess TMD prevalence, Brief Job Stress Questionnaire to assess job demands, Kessler Psychological Distress Scale (K6) to assess psychological distress, and the Japanese version of the Recovery Experience Questionnaire to assess recovery experiences. The moderated mediation analysis was conducted using the Process macro program for SPSS developed by Preacher and Hayes, examining the effect of job demands on TMD through psychological distress, moderated by the recovery experience. RESULTS The results showed that 13.1% (n = 168) of the respondents had TMD. Mediation analysis indicated high job demands were associated with an increased TMD prevalence through psychological distress. The moderated mediation analysis revealed that relaxation and control moderated the relationship between job demands and psychological distress. CONCLUSIONS This cross-sectional study established the relationship between job demands, psychological distress, and TMD among Japanese workers. The findings suggest that increased job demands contribute to high TMD prevalence through the mediation of psychological distress, moderated by relaxation and control.
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Affiliation(s)
- Naana Mori
- Keio Research Institute at SFC, Kanagawa 252-0882, Japan
- Department of Advanced Biomedical Research, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Daisuke Miyanaka
- Faculty of Policy Management, Keio University, Kanagawa 252-0882, Japan
- Better Options, Inc, Tokyo 170-0005, Japan
| | - Masahito Tokita
- Faculty of Policy Management, Keio University, Kanagawa 252-0882, Japan
| | - Michiko Kawada
- Graduate School of Media and Governance, Keio University, Kanagawa 252-0882, Japan
| | - Keiko Sakakibara
- Department of Social Psychology, Faculty of Sociology, Toyo University, Tokyo 112-8606, Japan
| | - Fuad Hamsyah
- Graduate School of Media and Governance, Keio University, Kanagawa 252-0882, Japan
- Faculty of Psychology, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Lin Yuheng
- Graduate School of Media and Governance, Keio University, Kanagawa 252-0882, Japan
| | - Akihito Shimazu
- Faculty of Policy Management, Keio University, Kanagawa 252-0882, Japan
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Shimazu A, Sakakibara K, Hamsyah F, Kawada M, Miyanaka D, Mori N, Tokita M. Frequency of laughter and work engagement among Japanese employees: a cross-sectional study during COVID-19. Ind Health 2023:2023-0085. [PMID: 38171738 DOI: 10.2486/indhealth.2023-0085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Laughter is associated with better health and occurs most frequently during casual conversations. However, the COVID-19 pandemic has impaired social interactions, which may have reduced the frequency of laughter and led to poor well-being among workers. This study investigated the relationship between laughter frequency and work engagement among Japanese employees during the pandemic. We conducted a web-based survey among Japanese employees (20-59 years) via an internet survey company in December 2021; 1,058 valid data were analysed. Of the respondents, 65.1% laughed at least once a week, but the frequency was much lower than that reported in previous studies conducted before the pandemic. Additionally, those who laughed at least once a week had significantly higher work engagement scores than those who laughed less than once a month. Although employees reduced their frequency of laughter during the pandemic, a certain frequency of laughter may be important for maintaining their work engagement.
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Affiliation(s)
| | | | - Fuad Hamsyah
- Graduate School of Media and Governance, Keio University, Japan
- Faculty of Psychology, Universitas Gadjah Mada, Indonesia
| | - Michiko Kawada
- Graduate School of Media and Governance, Keio University, Japan
| | - Daisuke Miyanaka
- Faculty of Policy Management, Keio University, Japan
- Better Options, Inc., Japan
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Sakakibara K, Miyanaka D, Tokita M, Kawada M, Mori N, Hamsyah F, Lin Y, Shimazu A. Association of Work-Related Sedentary Behavior With Mental Health and Work Engagement Among Japanese White- and Blue-Collar Workers. J Occup Environ Med 2023; 65:e695-e702. [PMID: 37621026 PMCID: PMC10662573 DOI: 10.1097/jom.0000000000002952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
OBJECTIVE This study investigated the association of work-related sedentary behavior with mental health and work engagement among white- and blue-collar workers. METHODS An Internet survey was conducted among 1600 workers aged 20 to 59 years. A total of 1213 valid responses were analyzed to examine the association of work-related sedentary behavior with mental health and work engagement. RESULTS Higher level of occupational sedentary behavior significantly associated with poorer mental health and lower work engagement among white-collar workers. Considering the effect of occupation, association of sedentary behavior with mental health disappeared, whereas association with work engagement remained for white-collar workers. CONCLUSIONS Our result suggested the importance of decreasing work-related sedentary behavior for enhancing work engagement regardless of the occupation for white-collar workers. Further study is needed to confirm the association between these variables for blue-collar workers.
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Yoro E, Koshimizu S, Murata T, Sakakibara K. Protocol: an improved method for inducing sporophyte generation in the model moss Physcomitrium patens under nitrogen starvation. Plant Methods 2023; 19:100. [PMID: 37752568 PMCID: PMC10521525 DOI: 10.1186/s13007-023-01077-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 09/07/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Land plants exhibit a haplodiplontic life cycle, whereby multicellular bodies develop in both the haploid and diploid generations. The early-diverging land plants, known as bryophytes, have a haploid-dominant life cycle, in which a short-lived multicellular body in the diploid generation, known as the sporophyte, develops on the maternal haploid gametophyte tissues. The moss Physcomitrium (Physcomitrella) patens has become one of the most powerful model systems in evolutionary plant developmental studies. To induce diploid sporophytes of P. patens, several protocols are implemented. One of the conventional approaches is to grow approximately one-month-old gametophores for another month on Jiffy-7 pellets made from the peat moss that is difficult to fully sterilize. A more efficient method to obtain all tissues throughout the life cycle should accelerate studies of P. patens. RESULTS Here, we investigated the effect of nitrogen conditions on the growth and development of P. patens. We provide an improved protocol for the sporophyte induction of P. patens using a BCD-based solid culture medium without Jiffy-7 pellets, based on the finding that the formation of gametangia and subsequent sporophytes is promoted by nitrogen-free growth conditions. The protocol consists of two steps; first, culture the protonemata and gametophores on nitrogen-rich medium under continuous light at 25 °C, and then transfer the gametophores onto nitrogen-free medium under short-day and at 15 °C for sporophyte induction. The protocol enables to shorten the induction period and reduce the culture space. CONCLUSIONS Our more efficient and shortened protocol for inducing the formation of sporophytes will contribute to future studies into the fertilization or the diploid sporophyte generation of P. patens.
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Affiliation(s)
- Emiko Yoro
- Department of Life Science, Rikkyo University, 3-34-1, Nishi-Ikebukuro, Toshima-ku, Tokyo, 171-8501, Japan
| | - Shizuka Koshimizu
- Division of Evolutionary Biology, National Institute for Basic Biology (NIBB), Okazaki, 444-8585, Japan
- Bioinformation & DDBJ Center, National Institute of Genetics (NIG), Mishima, 411-8540, Japan
| | - Takashi Murata
- Division of Evolutionary Biology, National Institute for Basic Biology (NIBB), Okazaki, 444-8585, Japan
- Department of Applied Bioscience, Kanagawa Institute of Technology, Atsugi, Kanagawa, 243-0292, Japan
| | - Keiko Sakakibara
- Department of Life Science, Rikkyo University, 3-34-1, Nishi-Ikebukuro, Toshima-ku, Tokyo, 171-8501, Japan.
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Frangedakis E, Marron AO, Waller M, Neubauer A, Tse SW, Yue Y, Ruaud S, Waser L, Sakakibara K, Szövényi P. What can hornworts teach us? Front Plant Sci 2023; 14:1108027. [PMID: 36968370 PMCID: PMC10030945 DOI: 10.3389/fpls.2023.1108027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
The hornworts are a small group of land plants, consisting of only 11 families and approximately 220 species. Despite their small size as a group, their phylogenetic position and unique biology are of great importance. Hornworts, together with mosses and liverworts, form the monophyletic group of bryophytes that is sister to all other land plants (Tracheophytes). It is only recently that hornworts became amenable to experimental investigation with the establishment of Anthoceros agrestis as a model system. In this perspective, we summarize the recent advances in the development of A. agrestis as an experimental system and compare it with other plant model systems. We also discuss how A. agrestis can help to further research in comparative developmental studies across land plants and to solve key questions of plant biology associated with the colonization of the terrestrial environment. Finally, we explore the significance of A. agrestis in crop improvement and synthetic biology applications in general.
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Affiliation(s)
| | - Alan O. Marron
- Department of Plant Sciences, University of Cambridge, Cambridge, United Kingdom
| | - Manuel Waller
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
- Zurich-Basel Plant Science Center, Zurich, Switzerland
| | - Anna Neubauer
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
- Zurich-Basel Plant Science Center, Zurich, Switzerland
| | - Sze Wai Tse
- Department of Plant Sciences, University of Cambridge, Cambridge, United Kingdom
| | - Yuling Yue
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
- Zurich-Basel Plant Science Center, Zurich, Switzerland
| | - Stephanie Ruaud
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
- Zurich-Basel Plant Science Center, Zurich, Switzerland
| | - Lucas Waser
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
- Zurich-Basel Plant Science Center, Zurich, Switzerland
- Department of Plant and Microbial Biology, University of Zürich, Zurich, Switzerland
| | | | - Péter Szövényi
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
- Zurich-Basel Plant Science Center, Zurich, Switzerland
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8
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Koshimizu S, Minamino N, Nishiyama T, Yoro E, Sato M, Wakazaki M, Toyooka K, Ebine K, Sakakibara K, Ueda T, Yano K. Phylogenetic distribution and expression pattern analyses identified a divergent basal body assembly protein involved in land plant spermatogenesis. New Phytol 2022; 236:1182-1196. [PMID: 35842793 DOI: 10.1111/nph.18385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
Land plant spermatozoids commonly possess characteristic structures such as the spline, which consists of a microtubule array, the multilayered structure (MLS) in which the uppermost layer is a continuum of the spline, and multiple flagella. However, the molecular mechanisms underpinning spermatogenesis remain to be elucidated. We successfully identified candidate genes involved in spermatogenesis, deeply divergent BLD10s, by computational analyses combining multiple methods and omics data. We then examined the functions of BLD10s in the liverwort Marchantia polymorpha and the moss Physcomitrium patens. MpBLD10 and PpBLD10 are required for normal basal body (BB) and flagella formation. Mpbld10 mutants exhibited defects in remodeling of the cytoplasm and nucleus during spermatozoid formation, and thus MpBLD10 should be involved in chromatin reorganization and elimination of the cytoplasm during spermiogenesis. We identified orthologs of MpBLD10 and PpBLD10 in diverse Streptophyta and found that MpBLD10 and PpBLD10 are orthologous to BLD10/CEP135 family proteins, which function in BB assembly. However, BLD10s evolved especially quickly in land plants and MpBLD10 might have acquired additional functions in spermatozoid formation through rapid molecular evolution.
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Affiliation(s)
| | - Naoki Minamino
- Division of Cellular Dynamics, National Institute for Basic Biology, Okazaki, 444-8585, Japan
| | - Tomoaki Nishiyama
- Research Center for Experimental Modeling of Human Disease, Kanazawa University, Kanazawa, 920-0934, Japan
| | - Emiko Yoro
- Department of Life Science, Rikkyo University, Tokyo, 171-8501, Japan
| | - Mayuko Sato
- RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Mayumi Wakazaki
- RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Kiminori Toyooka
- RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Kazuo Ebine
- Division of Cellular Dynamics, National Institute for Basic Biology, Okazaki, 444-8585, Japan
- Department of Basic Biology, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, 444-8585, Japan
| | - Keiko Sakakibara
- Department of Life Science, Rikkyo University, Tokyo, 171-8501, Japan
| | - Takashi Ueda
- Division of Cellular Dynamics, National Institute for Basic Biology, Okazaki, 444-8585, Japan
- Department of Basic Biology, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, 444-8585, Japan
| | - Kentaro Yano
- School of Agriculture, Meiji University, Kawasaki, 214-8571, Japan
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Yokota R, Okuhara T, Okada H, Goto E, Sakakibara K, Kiuchi T. Association between Stigma and Anxiety, Depression, and Psychological Distress among Japanese Women Undergoing Infertility Treatment. Healthcare (Basel) 2022; 10:healthcare10071300. [PMID: 35885826 PMCID: PMC9325025 DOI: 10.3390/healthcare10071300] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 01/05/2023] Open
Abstract
Japan has the highest number of cases of infertility treatment in the world. Studies have indicated that women undergoing infertility treatment feel stigmatized and suffer from psychological symptoms such as anxiety and depression. However, in Japan, few studies have quantitatively examined the association between the stigma of infertility and psychological symptoms, and, to our knowledge, no study has examined its association using a scale with tested reliability and validity. This study aims to quantitatively examine the relationship between infertility stigma and anxiety, depression, and psychological distress among women undergoing infertility treatment, using a scale that has been validated for reliability and validity. The cross-sectional study was conducted in December 2021 through a web-based survey of 254 participants undergoing infertility treatment. A multiple regression analysis was performed to examine the relationship between stigma and anxiety, depression, and psychological distress. Stigma was a statistically significant predictor of anxiety, depression, and psychological distress (standardized β = 0.58, p < 0.001; β = 0.50, p < 0.001; β = 0.62, p < 0.001, respectively) after controlling for sociodemographic and infertility characteristics. Future studies should examine the causal relationship between stigma and anxiety, depression, and psychological distress and how to intervene to reduce stigma among women undergoing infertility treatment.
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Affiliation(s)
- Rie Yokota
- Department of Health Communication, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
- Correspondence: ; Tel.: +81-3-5800-6549
| | - Tsuyoshi Okuhara
- Department of Health Communication, School of Public Health, The University of Tokyo, Tokyo 113-8655, Japan; (T.O.); (H.O.); (E.G.); (T.K.)
| | - Hiroko Okada
- Department of Health Communication, School of Public Health, The University of Tokyo, Tokyo 113-8655, Japan; (T.O.); (H.O.); (E.G.); (T.K.)
| | - Eiko Goto
- Department of Health Communication, School of Public Health, The University of Tokyo, Tokyo 113-8655, Japan; (T.O.); (H.O.); (E.G.); (T.K.)
| | - Keiko Sakakibara
- Department of Social Psychology, Faculty of Sociology, Toyo University, Tokyo 112-8606, Japan;
| | - Takahiro Kiuchi
- Department of Health Communication, School of Public Health, The University of Tokyo, Tokyo 113-8655, Japan; (T.O.); (H.O.); (E.G.); (T.K.)
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Kodama K, Rich MK, Yoda A, Shimazaki S, Xie X, Akiyama K, Mizuno Y, Komatsu A, Luo Y, Suzuki H, Kameoka H, Libourel C, Keller J, Sakakibara K, Nishiyama T, Nakagawa T, Mashiguchi K, Uchida K, Yoneyama K, Tanaka Y, Yamaguchi S, Shimamura M, Delaux PM, Nomura T, Kyozuka J. An ancestral function of strigolactones as symbiotic rhizosphere signals. Nat Commun 2022. [PMID: 35803942 DOI: 10.1101/2021.08.20.457034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023] Open
Abstract
In flowering plants, strigolactones (SLs) have dual functions as hormones that regulate growth and development, and as rhizosphere signaling molecules that induce symbiosis with arbuscular mycorrhizal (AM) fungi. Here, we report the identification of bryosymbiol (BSB), an SL from the bryophyte Marchantia paleacea. BSB is also found in vascular plants, indicating its origin in the common ancestor of land plants. BSB synthesis is enhanced at AM symbiosis permissive conditions and BSB deficient mutants are impaired in AM symbiosis. In contrast, the absence of BSB synthesis has little effect on the growth and gene expression. We show that the introduction of the SL receptor of Arabidopsis renders M. paleacea cells BSB-responsive. These results suggest that BSB is not perceived by M. paleacea cells due to the lack of cognate SL receptors. We propose that SLs originated as AM symbiosis-inducing rhizosphere signaling molecules and were later recruited as plant hormone.
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Affiliation(s)
- Kyoichi Kodama
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Mélanie K Rich
- LRSV, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Akiyoshi Yoda
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Center for Bioscience Research and Education, Utsunomiya University, Tochigi, Japan
| | - Shota Shimazaki
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Xiaonan Xie
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Center for Bioscience Research and Education, Utsunomiya University, Tochigi, Japan
| | - Kohki Akiyama
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
| | - Yohei Mizuno
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Aino Komatsu
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Yi Luo
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Hidemasa Suzuki
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Hiromu Kameoka
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Cyril Libourel
- LRSV, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Jean Keller
- LRSV, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | | | - Tomoaki Nishiyama
- Research Center for Experimental Modeling of Human Disease, Kanazawa University, Kanazawa, Japan
| | | | | | - Kenichi Uchida
- Department of Biosciences, Teikyo University, Tochigi, Japan
| | - Kaori Yoneyama
- Graduate School of Agriculture, Ehime University, Ehime, Japan
| | - Yoshikazu Tanaka
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | | | - Masaki Shimamura
- Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Pierre-Marc Delaux
- LRSV, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France.
| | - Takahito Nomura
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan.
- Center for Bioscience Research and Education, Utsunomiya University, Tochigi, Japan.
| | - Junko Kyozuka
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan.
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11
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Kodama K, Rich MK, Yoda A, Shimazaki S, Xie X, Akiyama K, Mizuno Y, Komatsu A, Luo Y, Suzuki H, Kameoka H, Libourel C, Keller J, Sakakibara K, Nishiyama T, Nakagawa T, Mashiguchi K, Uchida K, Yoneyama K, Tanaka Y, Yamaguchi S, Shimamura M, Delaux PM, Nomura T, Kyozuka J. An ancestral function of strigolactones as symbiotic rhizosphere signals. Nat Commun 2022; 13:3974. [PMID: 35803942 PMCID: PMC9270392 DOI: 10.1038/s41467-022-31708-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 06/29/2022] [Indexed: 11/23/2022] Open
Abstract
In flowering plants, strigolactones (SLs) have dual functions as hormones that regulate growth and development, and as rhizosphere signaling molecules that induce symbiosis with arbuscular mycorrhizal (AM) fungi. Here, we report the identification of bryosymbiol (BSB), an SL from the bryophyte Marchantia paleacea. BSB is also found in vascular plants, indicating its origin in the common ancestor of land plants. BSB synthesis is enhanced at AM symbiosis permissive conditions and BSB deficient mutants are impaired in AM symbiosis. In contrast, the absence of BSB synthesis has little effect on the growth and gene expression. We show that the introduction of the SL receptor of Arabidopsis renders M. paleacea cells BSB-responsive. These results suggest that BSB is not perceived by M. paleacea cells due to the lack of cognate SL receptors. We propose that SLs originated as AM symbiosis-inducing rhizosphere signaling molecules and were later recruited as plant hormone. Strigolactones (SLs) regulate angiosperm development and promote symbiosis with arbuscular mycorrhizae. Here the authors show that bryosymbiol, an SL present in bryophytes and angiosperms, promotes AM symbiosis in Marchantia paleacea suggesting an ancestral function of SLs as rhizosphere signals.
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Affiliation(s)
- Kyoichi Kodama
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Mélanie K Rich
- LRSV, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Akiyoshi Yoda
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan.,Center for Bioscience Research and Education, Utsunomiya University, Tochigi, Japan
| | - Shota Shimazaki
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Xiaonan Xie
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan.,Center for Bioscience Research and Education, Utsunomiya University, Tochigi, Japan
| | - Kohki Akiyama
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
| | - Yohei Mizuno
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Aino Komatsu
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Yi Luo
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Hidemasa Suzuki
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Hiromu Kameoka
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Cyril Libourel
- LRSV, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | - Jean Keller
- LRSV, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France
| | | | - Tomoaki Nishiyama
- Research Center for Experimental Modeling of Human Disease, Kanazawa University, Kanazawa, Japan
| | | | | | - Kenichi Uchida
- Department of Biosciences, Teikyo University, Tochigi, Japan
| | - Kaori Yoneyama
- Graduate School of Agriculture, Ehime University, Ehime, Japan
| | - Yoshikazu Tanaka
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | | | - Masaki Shimamura
- Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Pierre-Marc Delaux
- LRSV, Université de Toulouse, CNRS, UPS, Toulouse INP, Auzeville-Tolosane, France.
| | - Takahito Nomura
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan. .,Center for Bioscience Research and Education, Utsunomiya University, Tochigi, Japan.
| | - Junko Kyozuka
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan.
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12
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Sadamitsu A, Inoue Y, Sakakibara K, Tsubota H, Yamaguchi T, Deguchi H, Nishiyama T, Shimamura M. The complete plastid genome sequence of the enigmatic moss, Takakia lepidozioides (Takakiopsida, Bryophyta): evolutionary perspectives on the largest collection of genes in mosses and the intensive RNA editing. Plant Mol Biol 2021; 107:431-449. [PMID: 34817767 DOI: 10.1007/s11103-021-01214-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
Complete chloroplast genome sequence of a moss, Takakia lepidozioides (Takakiopsida) is reported. The largest collection of genes in mosses and the intensive RNA editing were discussed from evolutionary perspectives. We assembled the entire plastid genome sequence of Takakia lepidozioides (Takakiopsida), emerging from the first phylogenetic split among extant mosses. The genome sequences were assembled into a circular molecule 149,016 bp in length, with a quadripartite structure comprising a large and a small single-copy region separated by inverted repeats. It contained 88 genes coding for proteins, 32 for tRNA, four for rRNA, two open reading frames, and at least one pseudogene (tufA). This is the largest number of genes of all sequenced plastid genomes in mosses and Takakia is the only moss that retains the seven coding genes ccsA, cysA, cysT, petN rpoA, rps16 and trnPGGG. Parsimonious interpretation of gene loss suggests that the last common ancestor of bryophytes had all seven genes and that mosses lost at least three of them during their diversification. Analyses of the plastid transcriptome identified the extraordinary frequency of RNA editing with more than 1100 sites. We indicated a close correlation between the monoplastidy of vegetative tissue and the intensive RNA editing sites in the plastid genome in land plant lineages. Here, we proposed a hypothesis that the small population size of plastids in each vegetative cell of some early diverging land plants, including Takakia, might cause the frequent fixation of mutations in plastid genome through the intracellular genetic drift and that deleterious mutations might be continuously compensated by RNA editing during or following transcription.
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Affiliation(s)
- Atsushi Sadamitsu
- Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-hiroshima, Hiroshima, 739-8526, Japan
| | - Yuya Inoue
- Department of Botany, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki, 305-0005, Japan
- Hattori Botanical Laboratory, 6-1-26 Obi, Nichinan, Miyazaki, 889-2535, Japan
| | - Keiko Sakakibara
- Department of Life Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo, 171-8501, Japan
| | - Hiromi Tsubota
- Miyajima Natural Botanical Garden, Graduate School of Integrated Sciences for Life, Hiroshima University, 1156-2, Mitsumaruko-yama, Miyajima-cho, Hatsukaichi, Hiroshima, 739-0543, Japan
| | - Tomio Yamaguchi
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-hiroshima, Hiroshima, 739-8526, Japan
| | - Hironori Deguchi
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-hiroshima, Hiroshima, 739-8526, Japan
| | - Tomoaki Nishiyama
- Research Center for Experimental Modeling of Human Disease, Kanazawa University, Kanazawa, 920-0934, Japan
| | - Masaki Shimamura
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-hiroshima, Hiroshima, 739-8526, Japan.
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13
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Frangedakis E, Waller M, Nishiyama T, Tsukaya H, Xu X, Yue Y, Tjahjadi M, Gunadi A, Van Eck J, Li F, Szövényi P, Sakakibara K. An Agrobacterium-mediated stable transformation technique for the hornwort model Anthoceros agrestis. New Phytol 2021; 232:1488-1505. [PMID: 34076270 PMCID: PMC8717380 DOI: 10.1111/nph.17524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/20/2021] [Indexed: 05/03/2023]
Abstract
Despite their key phylogenetic position and their unique biology, hornworts have been widely overlooked. Until recently there was no hornwort model species amenable to systematic experimental investigation. Anthoceros agrestis has been proposed as the model species to study hornwort biology. We have developed an Agrobacterium-mediated method for the stable transformation of A. agrestis, a hornwort model species for which a genetic manipulation technique was not yet available. High transformation efficiency was achieved by using thallus tissue grown under low light conditions. We generated a total of 274 transgenic A. agrestis lines expressing the β-glucuronidase (GUS), cyan, green, and yellow fluorescent proteins under control of the CaMV 35S promoter and several endogenous promoters. Nuclear and plasma membrane localization with multiple color fluorescent proteins was also confirmed. The transformation technique described here should pave the way for detailed molecular and genetic studies of hornwort biology, providing much needed insight into the molecular mechanisms underlying symbiosis, carbon-concentrating mechanism, RNA editing and land plant evolution in general.
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Affiliation(s)
| | - Manuel Waller
- Department of Systematic and Evolutionary BotanyUniversity of ZurichZurich8008Switzerland
- Zurich‐Basel Plant Science CenterZurich8092Switzerland
| | - Tomoaki Nishiyama
- Advanced Science Research CenterKanazawa UniversityIshikawa920‐8640Japan
| | - Hirokazu Tsukaya
- Department of Biological SciencesGraduate School of ScienceThe University of TokyoTokyo113‐0033Japan
| | - Xia Xu
- Boyce Thompson InstituteIthacaNY14853‐1801USA
| | - Yuling Yue
- Department of Systematic and Evolutionary BotanyUniversity of ZurichZurich8008Switzerland
- Zurich‐Basel Plant Science CenterZurich8092Switzerland
| | | | | | - Joyce Van Eck
- Boyce Thompson InstituteIthacaNY14853‐1801USA
- Plant Breeding and Genetics SectionCornell UniversityIthacaNY14853‐1801USA
| | - Fay‐Wei Li
- Boyce Thompson InstituteIthacaNY14853‐1801USA
- Plant Biology SectionCornell UniversityIthacaNY14853‐1801USA
| | - Péter Szövényi
- Department of Systematic and Evolutionary BotanyUniversity of ZurichZurich8008Switzerland
- Zurich‐Basel Plant Science CenterZurich8092Switzerland
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14
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Frangedakis E, Shimamura M, Villarreal JC, Li FW, Tomaselli M, Waller M, Sakakibara K, Renzaglia KS, Szövényi P. The hornworts: morphology, evolution and development. New Phytol 2021; 229:735-754. [PMID: 32790880 PMCID: PMC7881058 DOI: 10.1111/nph.16874] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 07/28/2020] [Indexed: 05/12/2023]
Abstract
Extant land plants consist of two deeply divergent groups, tracheophytes and bryophytes, which shared a common ancestor some 500 million years ago. While information about vascular plants and the two of the three lineages of bryophytes, the mosses and liverworts, is steadily accumulating, the biology of hornworts remains poorly explored. Yet, as the sister group to liverworts and mosses, hornworts are critical in understanding the evolution of key land plant traits. Until recently, there was no hornwort model species amenable to systematic experimental investigation, which hampered detailed insight into the molecular biology and genetics of this unique group of land plants. The emerging hornwort model species, Anthoceros agrestis, is instrumental in our efforts to better understand not only hornwort biology but also fundamental questions of land plant evolution. To this end, here we provide an overview of hornwort biology and current research on the model plant A. agrestis to highlight its potential in answering key questions of land plant biology and evolution.
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Affiliation(s)
| | - Masaki Shimamura
- Graduate School of Integrated Sciences for Life, Hiroshima University, 739-8528, Japan
| | - Juan Carlos Villarreal
- Department of Biology, Laval University, Quebec City, Quebec, G1V 0A6, Canada
- Smithsonian Tropical Research Institute, Balboa, Ancon, Panamá
| | - Fay-Wei Li
- Boyce Thompson Institute, Ithaca, New York, 14853-1801, USA
- Plant Biology Section, Cornell University, Ithaca, New York, 14853-1801, USA
| | - Marta Tomaselli
- Department of Plant Sciences, University of Cambridge, Cambridge, CB3 EA, UK
| | - Manuel Waller
- Department of Systematic and Evolutionary Botany, University of Zurich, 8008, Switzerland
| | - Keiko Sakakibara
- Department of Life Science, Rikkyo University, Tokyo, 171-8501, Japan
| | - Karen S. Renzaglia
- Department of Plant Biology, Southern Illinois University, Illinois, 62901, USA
| | - Péter Szövényi
- Department of Systematic and Evolutionary Botany, University of Zurich, 8008, Switzerland
- Zurich-Basel Plant Science Center, Zurich, 8092, Switzerland
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15
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Sakakibara K, Shimazu A, Toyama H, Schaufeli WB. Validation of the Japanese Version of the Burnout Assessment Tool. Front Psychol 2020; 11:1819. [PMID: 32849072 PMCID: PMC7431961 DOI: 10.3389/fpsyg.2020.01819] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 07/01/2020] [Indexed: 11/17/2022] Open
Abstract
The current study aimed to validate the Japanese version of the Burnout Assessment Tool (BAT-J), a new burnout measure. We conducted an Internet survey to confirm the validity and reliability of the BAT-J, using registered monitors from a Japanese survey company. The first-wave survey was conducted in May 2018, with 1,032 monitors. Of these, 498 participated in the second-wave survey in June 2018 to confirm 1-month test–retest reliability. We examined the factorial validity of the BAT-J core symptoms (BAT-JC) and BAT-J secondary symptoms (BAT-JS), as well as their reliability (internal consistency and test–retest reliability) and construct validity. Factorial validity was examined using confirmatory factor analyses and exploratory structural equation modeling bifactor analyses. Convergent and discriminant validity were examined using multitrait–multimethod frameworks well as the average variance explained. Exploratory structural equation modeling bifactor solutions for the BAT-JC, BAT-JS, and BAT-J demonstrated the best fit to the data. They also indicated that the general factor accounted for over two-thirds of the common variance explained. Internal consistency and test–retest reliability were confirmed. Convergent and internal discriminant validity of the BAT-JC were confirmed vis-ȧ-vis burnout, as assessed with the Maslach Burnout Inventory – General Survey. Moreover, external discriminant validity of the BAT-J was demonstrated for work engagement and workaholism. Finally, both BAT scales showed significant positive relationships with job demands and turnover intention. All validity results were in line with the job demands–resources model. The results of the current study provide the first evidence for the BAT-J’s reliability and factorial and construct validity.
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Affiliation(s)
| | - Akihito Shimazu
- Faculty of Policy Management, Keio University, Kanagawa, Japan
| | - Hiroyuki Toyama
- Faculty of Educational Sciences, University of Helsinki, Helsinki, Finland
| | - Wilmar B Schaufeli
- Department of Social, Health and Organizational Psychology, Utrecht University, Utrecht, Netherlands.,Department of Work, Organizational and Personnel Psychology, KU Leuven, Leuven, Belgium
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16
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Masuzawa T, Sakakibara K, Suzuki K, Sato H, Yasuda S. Detection of Asian-Type Borrelia miyamotoi from Ixodes ricinus Inhabiting Tver Province (Russia): A Sympatric Region for I. ricinus and Ixodes persulcatus. Vector Borne Zoonotic Dis 2020; 20:921-923. [PMID: 32762621 DOI: 10.1089/vbz.2020.2653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Borrelia miyamotoi, a hard tick-borne relapsing fever agent, was sampled in Ixodes ricinus and Ixodes persulcatus ticks from the Tver province in Russia (a sympatric region of both tick species) and examined by TaqMan-PCR targeting the 16S rRNA gene. Borrelia was detected in 4 out of 168 ticks: 2 out of 58 I. ricinus ticks (infection rate 2.9%) and 2 out of 110 I. persulcatus ticks (1.8%). The agent was identified as B. miyamotoi on the basis of the 16S and 23S rDNA intergenic spacer and glycerophosphodiester phosphodiesterase gene sequencing analyses. Interestingly, the genes sequences detected from one I. ricinus tick were identical to those of Asian-type B. miyamotoi from I. persulcatus. This tick was identified as I. ricinus by sequencing analysis of internal transcribed spacer 2 and mitochondrial cytochrome oxidase subunit 1. The results suggest that the I. ricinus ticks were infected with Asian-type B. miyamotoi in a sympatric region for I. ricinus and I. persulcatus.
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Affiliation(s)
- Toshiyuki Masuzawa
- Laboratory of Microbiology and Immunology, Faculty of Pharmacy, Chiba Institute of Science (CIS), Choshi, Japan
| | - Keiko Sakakibara
- Laboratory of Microbiology and Immunology, Faculty of Pharmacy, Chiba Institute of Science (CIS), Choshi, Japan
| | - Kazushi Suzuki
- Laboratory of Microbiology and Immunology, Faculty of Pharmacy, Chiba Institute of Science (CIS), Choshi, Japan
| | - Hiroki Sato
- Laboratory of Microbiology and Immunology, Faculty of Pharmacy, Chiba Institute of Science (CIS), Choshi, Japan
| | - Shima Yasuda
- Laboratory of Microbiology and Immunology, Faculty of Pharmacy, Chiba Institute of Science (CIS), Choshi, Japan
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17
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Li FW, Nishiyama T, Waller M, Frangedakis E, Keller J, Li Z, Fernandez-Pozo N, Barker MS, Bennett T, Blázquez MA, Cheng S, Cuming AC, de Vries J, de Vries S, Delaux PM, Diop IS, Harrison CJ, Hauser D, Hernández-García J, Kirbis A, Meeks JC, Monte I, Mutte SK, Neubauer A, Quandt D, Robison T, Shimamura M, Rensing SA, Villarreal JC, Weijers D, Wicke S, Wong GKS, Sakakibara K, Szövényi P. Anthoceros genomes illuminate the origin of land plants and the unique biology of hornworts. Nat Plants 2020; 6:259-272. [PMID: 32170292 PMCID: PMC8075897 DOI: 10.1038/s41477-020-0618-2] [Citation(s) in RCA: 150] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 02/11/2020] [Indexed: 05/12/2023]
Abstract
Hornworts comprise a bryophyte lineage that diverged from other extant land plants >400 million years ago and bears unique biological features, including a distinct sporophyte architecture, cyanobacterial symbiosis and a pyrenoid-based carbon-concentrating mechanism (CCM). Here, we provide three high-quality genomes of Anthoceros hornworts. Phylogenomic analyses place hornworts as a sister clade to liverworts plus mosses with high support. The Anthoceros genomes lack repeat-dense centromeres as well as whole-genome duplication, and contain a limited transcription factor repertoire. Several genes involved in angiosperm meristem and stomatal function are conserved in Anthoceros and upregulated during sporophyte development, suggesting possible homologies at the genetic level. We identified candidate genes involved in cyanobacterial symbiosis and found that LCIB, a Chlamydomonas CCM gene, is present in hornworts but absent in other plant lineages, implying a possible conserved role in CCM function. We anticipate that these hornwort genomes will serve as essential references for future hornwort research and comparative studies across land plants.
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Affiliation(s)
- Fay-Wei Li
- Boyce Thompson Institute, Ithaca, NY, USA.
- Plant Biology Section, Cornell University, Ithaca, NY, USA.
| | - Tomoaki Nishiyama
- Advanced Science Research Center, Kanazawa University, Ishikawa, Japan
| | - Manuel Waller
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | | | - Jean Keller
- LRSV, Université de Toulouse, CNRS, UPS Castanet-Tolosan, Toulouse, France
| | - Zheng Li
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | | | - Michael S Barker
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | - Tom Bennett
- Centre for Plant Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Miguel A Blázquez
- Instituto de Biología Molecular y Celular de Plantas, CSIC-Universidad Politécnica de Valencia, Valencia, Spain
| | - Shifeng Cheng
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Andrew C Cuming
- Centre for Plant Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Jan de Vries
- Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Georg-August University Göttingen, Göttingen, Germany
| | - Sophie de Vries
- Institute of Population Genetics, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Pierre-Marc Delaux
- LRSV, Université de Toulouse, CNRS, UPS Castanet-Tolosan, Toulouse, France
| | - Issa S Diop
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | - C Jill Harrison
- School of Biological Sciences, University of Bristol, Bristol, UK
| | | | - Jorge Hernández-García
- Instituto de Biología Molecular y Celular de Plantas, CSIC-Universidad Politécnica de Valencia, Valencia, Spain
| | - Alexander Kirbis
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | - John C Meeks
- Department of Microbiology and Molecular Genetics, University of California, Davis, CA, USA
| | - Isabel Monte
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Sumanth K Mutte
- Laboratory of Biochemistry, Wageningen University & Research, Wageningen, the Netherlands
| | - Anna Neubauer
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | - Dietmar Quandt
- Nees Institute for Biodiversity of Plants, University of Bonn, Bonn, Germany
| | - Tanner Robison
- Boyce Thompson Institute, Ithaca, NY, USA
- Plant Biology Section, Cornell University, Ithaca, NY, USA
| | - Masaki Shimamura
- Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Stefan A Rensing
- Faculty of Biology, Philipps University of Marburg, Marburg, Germany
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany
- LOEWE Center for Synthetic Microbiology (SYNMIKRO), University of Marburg, Marburg, Germany
| | - Juan Carlos Villarreal
- Department of Biology, Laval University, Quebec City, Quebec, Canada
- Smithsonian Tropical Research Institute, Balboa, Panamá
| | - Dolf Weijers
- Laboratory of Biochemistry, Wageningen University & Research, Wageningen, the Netherlands
| | - Susann Wicke
- Institute for Evolution and Biodiversity, University of Muenster, Münster, Germany
| | - Gane K-S Wong
- Department of Biological Sciences, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
- BGI-Shenzhen, Shenzhen, China
| | | | - Péter Szövényi
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland.
- Zurich-Basel Plant Science Center, Zurich, Switzerland.
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18
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Kurebayashi Y, Takahashi T, Miura T, Otsubo T, Minami A, Fujita Y, Sakakibara K, Tanabe M, Iuchi A, Ota R, Ikeda K, Suzuki T. Fluorogenic Probes for Accurate in Situ Imaging of Viral and Mammalian Sialidases. ACS Chem Biol 2019; 14:1195-1204. [PMID: 31120724 DOI: 10.1021/acschembio.9b00103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sialidases are widely distributed in nature and are involved in many physiological and pathological processes. Sialidases are expressed and work in various tissues and organelles. Clarification of the localization of sialidases is very helpful as a way to understand their functions. We previously developed a novel fluorogenic probe for sialidases, BTP3-Neu5Ac, that visualized the localization of sialidase activity in live cells and tissues by precipitating the hydrophobic fluorescent compound; however, for the purpose of accurate fluorescence imaging of sialidase-expressing cells or the distribution of intracellular sialidase activity, BTP3-Neu5Ac was inadequate in imaging performance. We report the design and development of a sialidase imaging probe that improves the sensitivity and accuracy of in situ fluorescence imaging performance as well as increases the hydrophobicity by attaching linear unsaturated hydrocarbon chains into the hydrophobic fluorescent compound of BTP3-Neu5Ac. The newly developed probe showed low diffusivity and high brightness for fluorescence imaging, and it enabled sensitive and highly accurate imaging of viral sialidase in virus-infected cells and sialidase-expressing cells as well as mammalian sialidase in the rat brain. The probe also enabled the fluorescence imaging of intracellular viral sialidase in live-virus-infected cells. The newly developed probe is expected to be a useful tool that will contribute to the progress of research on sialidases in various fields such as research on viruses and brains.
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Affiliation(s)
- Yuuki Kurebayashi
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Tadanobu Takahashi
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Tomomi Miura
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Tadamune Otsubo
- Department of Organic Chemistry, School of Pharmaceutical Sciences, Hiroshima International University, Kure-shi, Hiroshima 737-0112, Japan
| | - Akira Minami
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Yuka Fujita
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Keiko Sakakibara
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Momoko Tanabe
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Ayano Iuchi
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Ryohei Ota
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Kiyoshi Ikeda
- Department of Organic Chemistry, School of Pharmaceutical Sciences, Hiroshima International University, Kure-shi, Hiroshima 737-0112, Japan
| | - Takashi Suzuki
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
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19
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Masuzawa T, Saito M, Nakao R, Nikaido Y, Matsumoto M, Ogawa M, Yokoyama M, Hidaka Y, Tomita J, Sakakibara K, Suzuki K, Yasuda S, Sato H, Yamaguchi M, Yoshida SI, Koizumi N, Kawamura Y. Molecular and phenotypic characterization of Leptospira johnsonii sp. nov., Leptospira ellinghausenii sp. nov. and Leptospira ryugenii sp. nov. isolated from soil and water in Japan. Microbiol Immunol 2019; 63:89-99. [PMID: 30817029 DOI: 10.1111/1348-0421.12671] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/07/2019] [Accepted: 02/20/2019] [Indexed: 11/27/2022]
Abstract
In a previous study, 50 of 132 soil samples collected throughout Japan were found to be Leptospira-positive. In the present study, three strains identified in the collected specimens, three, E8, E18 and YH101, were found to be divergent from previously described Leptospira species according to 16S ribosomal RNA gene sequence analysis. These three strains have a helical shape similar to that of typical Leptospira and were not re-isolated from experimental mice inoculated with the cultured strains. Upon 16S ribosomal RNA gene sequence analysis, E8 was found to belong to the intermediate Leptospira species clade and E18 and YH101 to belong to the saprophytic Leptospira species clade. Based on analyses of genome-to-genome distances and average nucleotide identity in silico using whole genome sequences and DNA-DNA hybridization in vitro, these isolates were found to be distinct from previously described Leptospira species. Therefore, these three isolates represent novel species of the genus Leptospira for which the names Leptospira johnsonii sp. nov., (type strain E8 T , = JCM 32515 T = CIP111620 T ), Leptospira ellinghausenii sp. nov., (type strain E18 T , = JCM 32516 T = CIP111618 T ) and Leptospira ryugenii sp. nov., (type strain YH101 T , = JCM 32518 T = CIP111617 T ) are proposed.
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Affiliation(s)
- Toshiyuki Masuzawa
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Chiba Institute of Science (CIS), Choshi, Chiba
| | - Mitsumasa Saito
- Department of Microbiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka
| | - Ryo Nakao
- Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido
| | - Yasuhiko Nikaido
- Department of Microbiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka
| | - Masahiro Matsumoto
- Department of Microbiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka
| | - Midori Ogawa
- Department of Microbiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka
| | - Mitsuru Yokoyama
- Shared-Use Research Center, University of Occupational and Environmental Health, Kitakyushu, Fukuoka
| | - Yusuke Hidaka
- Department of Bacteriology, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka
| | - Junko Tomita
- Department of Microbiology, School of Pharmacy, Aichi Gakuin University, Nagoya, Aichi
| | - Keiko Sakakibara
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Chiba Institute of Science (CIS), Choshi, Chiba
| | - Kazushi Suzuki
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Chiba Institute of Science (CIS), Choshi, Chiba
| | - Shima Yasuda
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Chiba Institute of Science (CIS), Choshi, Chiba
| | - Hiroki Sato
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Chiba Institute of Science (CIS), Choshi, Chiba
| | - Masaya Yamaguchi
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Chiba Institute of Science (CIS), Choshi, Chiba
| | - Shin-Ichi Yoshida
- Department of Bacteriology, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka
| | - Nobuo Koizumi
- Department of Bacteriology I, National Institute of Infectious Diseases, Toyama, Tokyo, Japan
| | - Yoshiaki Kawamura
- Department of Microbiology, School of Pharmacy, Aichi Gakuin University, Nagoya, Aichi
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20
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Tanaka T, Nakashima K, Tsuji S, Han X, Zhao J, Honda Y, Sakakibara K, Kurebayashi Y, Takahashi T, Suzuki T. Controlled synthesis of glycopolymers with pendant complex-type sialylglycopeptides and their binding affinity with a lectin and an influenza virus. Polym Chem 2019. [DOI: 10.1039/c9py00745h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Glycopolymers with pendant complex-type sialylglycopeptides (SGPs) were synthesized by a post-polymerization approach. The resulting glycopolymers strongly interacted with a lectin and an influenza virus.
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21
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Higo A, Kawashima T, Borg M, Zhao M, López-Vidriero I, Sakayama H, Montgomery SA, Sekimoto H, Hackenberg D, Shimamura M, Nishiyama T, Sakakibara K, Tomita Y, Togawa T, Kunimoto K, Osakabe A, Suzuki Y, Yamato KT, Ishizaki K, Nishihama R, Kohchi T, Franco-Zorrilla JM, Twell D, Berger F, Araki T. Transcription factor DUO1 generated by neo-functionalization is associated with evolution of sperm differentiation in plants. Nat Commun 2018; 9:5283. [PMID: 30538242 PMCID: PMC6290024 DOI: 10.1038/s41467-018-07728-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 11/21/2018] [Indexed: 12/20/2022] Open
Abstract
Evolutionary mechanisms underlying innovation of cell types have remained largely unclear. In multicellular eukaryotes, the evolutionary molecular origin of sperm differentiation is unknown in most lineages. Here, we report that in algal ancestors of land plants, changes in the DNA-binding domain of the ancestor of the MYB transcription factor DUO1 enabled the recognition of a new cis-regulatory element. This event led to the differentiation of motile sperm. After neo-functionalization, DUO1 acquired sperm lineage-specific expression in the common ancestor of land plants. Subsequently the downstream network of DUO1 was rewired leading to sperm with distinct morphologies. Conjugating green algae, a sister group of land plants, accumulated mutations in the DNA-binding domain of DUO1 and lost sperm differentiation. Our findings suggest that the emergence of DUO1 was the defining event in the evolution of sperm differentiation and the varied modes of sexual reproduction in the land plant lineage.
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Affiliation(s)
- Asuka Higo
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Tomokazu Kawashima
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), Dr. Bohr Gasse 3, 1030, Vienna, Austria
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, 40546-0312, USA
| | - Michael Borg
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), Dr. Bohr Gasse 3, 1030, Vienna, Austria
| | - Mingmin Zhao
- Department of Genetics and Genome Biology, University of Leicester, University Road, Leicester, LE1 7RH, UK
| | - Irene López-Vidriero
- Unidad de Genómica, Centro Nacional de Biotecnología, CNB-CSIC, Campus de Cantoblanco, C/Darwin 3, 28049, Madrid, Spain
| | - Hidetoshi Sakayama
- Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501, Japan
| | - Sean A Montgomery
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), Dr. Bohr Gasse 3, 1030, Vienna, Austria
| | - Hiroyuki Sekimoto
- Department of Chemical and Biological Sciences, Faculty of Science, Japan Women's University, 2-8-1 Mejirodai, Bunkyo-ku, Tokyo, 112-8681, Japan
| | - Dieter Hackenberg
- Department of Genetics and Genome Biology, University of Leicester, University Road, Leicester, LE1 7RH, UK
| | - Masaki Shimamura
- Department of Biology, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, 739-8526, Japan
| | - Tomoaki Nishiyama
- Advanced Science Research Center, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Keiko Sakakibara
- Department of Life Science, College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo, 171-8501, Japan
| | - Yuki Tomita
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Taisuke Togawa
- Faculty of Biology-Oriented Science and Technology, Kindai University, Kinokawa, 649-6493, Japan
| | - Kan Kunimoto
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Akihisa Osakabe
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), Dr. Bohr Gasse 3, 1030, Vienna, Austria
| | - Yutaka Suzuki
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba, 277-8562, Japan
| | - Katsuyuki T Yamato
- Faculty of Biology-Oriented Science and Technology, Kindai University, Kinokawa, 649-6493, Japan
| | - Kimitsune Ishizaki
- Department of Biology, Graduate School of Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501, Japan
| | - Ryuichi Nishihama
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Takayuki Kohchi
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - José M Franco-Zorrilla
- Unidad de Genómica, Centro Nacional de Biotecnología, CNB-CSIC, Campus de Cantoblanco, C/Darwin 3, 28049, Madrid, Spain
| | - David Twell
- Department of Genetics and Genome Biology, University of Leicester, University Road, Leicester, LE1 7RH, UK
| | - Frédéric Berger
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna Biocenter (VBC), Dr. Bohr Gasse 3, 1030, Vienna, Austria.
| | - Takashi Araki
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan.
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22
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Sato K, Sakakibara K, Masuzawa T, Ohnishi M, Kawabata H. Case control study: Serological evidence that Borrelia miyamotoi disease occurs nationwide in Japan. J Infect Chemother 2018; 24:828-833. [PMID: 30057339 DOI: 10.1016/j.jiac.2018.06.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/04/2018] [Accepted: 06/30/2018] [Indexed: 12/30/2022]
Abstract
Since 2011, Borrelia miyamotoi disease (BMD) has been reported in five countries in the northern hemisphere. The causative agent of BMD is transmitted by Ixodes ticks, which are also vectors of Lyme disease borreliae. In this study, we examined 459 cases of clinically suspected Lyme disease (LD group), and found twelve cases that were seropositive for the glycerophosphodiester phosphodiesterase (GlpQ) antigen derived from B. miyamotoi. The retrospective surveillance revealed that the seroprevalence of anti-GlpQ in the LD group was significantly higher than in a healthy cohort. Seropositive cases were observed from spring through autumn when ticks are active, and the cases were geographically widespread, being found in Hokkaido-Tohoku, Kanto, Chubu, Kinki, and Kyushu-Okinawa regions. Seropositive cases for GlpQ were most frequent in the Chubu region (6.3%) where B. miyamotoi has been found in Ixodes ticks. Out of the twelve cases that were found in the LD group, three cases exhibited concomitant seropositivity to Lyme disease borreliae by western blot assay. This is the first report of serological surveillance for BMD in Japan, and we conclude that BMD occurs nationwide.
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Affiliation(s)
- Kozue Sato
- Department of Bacteriology-I, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Keiko Sakakibara
- Faculty of Pharmaceutical Sciences, Chiba Institute of Science, Choshi, Chiba, Japan
| | - Toshiyuki Masuzawa
- Faculty of Pharmaceutical Sciences, Chiba Institute of Science, Choshi, Chiba, Japan
| | - Makoto Ohnishi
- Department of Bacteriology-I, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Hiroki Kawabata
- Department of Bacteriology-I, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan.
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23
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Masuzawa T, Sakakibara K, Saito M, Hidaka Y, Villanueva SYAM, Yanagihara Y, Yoshida SI. Characterization of Leptospira species isolated from soil collected in Japan. Microbiol Immunol 2017; 62:55-59. [PMID: 29105847 DOI: 10.1111/1348-0421.12551] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 10/03/2017] [Accepted: 10/17/2017] [Indexed: 01/11/2023]
Abstract
Leptospira were isolated from soil obtained from Hokkaido, the northernmost island, to Okinawa, the southernmost island, of Japan using sulfamethoxazole, trimethoprim, amphotericin B, fosfomycin, and 5- fluorouracil. Fifty of 132 soil samples (37.9%) were culture-positive. On the basis of 16S-rDNA sequences, 12 of the isolated Leptospira were classified into a pathogenic species clade that is closely associated with L. alstonii and L. kmetyi. Nine isolates were classified as intermediate species and were found to be similar to L. licerasiae. Twenty-seven isolates were classified as non-pathogenic species, of which 23 were found to be related to L. wolbachii. Non-pathogenic Leptospira are commonly distributed in environmental soil.
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Affiliation(s)
- Toshiyuki Masuzawa
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Chiba Institute of Science, 3 Shiomi-cho, Choshi, Chiba 288-0025, Japan
| | - Keiko Sakakibara
- Laboratory of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Chiba Institute of Science, 3 Shiomi-cho, Choshi, Chiba 288-0025, Japan
| | - Mitsumasa Saito
- Department of Microbiology, School of Medicine, University of Occupational and Environmental Health, Kita-Kyushu 807-8555, Japan.,Department of Bacteriology, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka 819-0395, Japan
| | - Yusuke Hidaka
- Department of Bacteriology, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka 819-0395, Japan
| | - Sharon Y A M Villanueva
- Department of Bacteriology, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka 819-0395, Japan.,Department of Medical Microbiology, College of Public Health, University of the Philippines-Manila, Manila, Philippines
| | | | - Shin-Ichi Yoshida
- Department of Bacteriology, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka 819-0395, Japan
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24
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Ohashi M, Shimizu T, Ito H, Matsui T, Sakakibara K, Echizen Y, Takatani M, Harada Y, Yokoi D, Kobayashi R, Okada H, Okuda S. Clinical features of progressive multifocal leukoencephalopathy with human immunodeficiency virus infection. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Abstract
The life cycles of eukaryotes alternate between haploid and diploid phases, which are initiated by meiosis and gamete fusion, respectively. In both ascomycete and basidiomycete fungi and chlorophyte algae, the haploid-to-diploid transition is regulated by a pair of paralogous homeodomain protein encoding genes. That a common genetic program controls the haploid-to-diploid transition in phylogenetically disparate eukaryotic lineages suggests this may be the ancestral function for homeodomain proteins. Multicellularity has evolved independently in many eukaryotic lineages in either one or both phases of the life cycle. Organisms, such as land plants, exhibiting a life cycle whereby multicellular bodies develop in both the haploid and diploid phases are often referred to as possessing an alternation of generations. We review recent progress on understanding the genetic basis for the land plant alternation of generations and highlight the roles that homeodomain-encoding genes may have played in the evolution of complex multicellularity in this lineage.
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Affiliation(s)
- John L Bowman
- School of Biological Sciences, Monash University, Melbourne, Victoria 3800, Australia;
- Department of Plant Biology, University of California, Davis, California 95616
| | - Keiko Sakakibara
- School of Biological Sciences, Monash University, Melbourne, Victoria 3800, Australia;
- Department of Life Science, College of Science, Rikkyo University, Tokyo 171-8501, Japan
| | - Chihiro Furumizu
- School of Biological Sciences, Monash University, Melbourne, Victoria 3800, Australia;
| | - Tom Dierschke
- School of Biological Sciences, Monash University, Melbourne, Victoria 3800, Australia;
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26
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Sakakibara K, Şen E, Sato K, Kawabata H, Ohashi N, Masuzawa T. Detection and Characterization of the Emerging Relapsing Fever Pathogen, Borrelia miyamotoi, from the Ixodes ricinus Tick in the Rural Trakya (Thrace) Region of Northwestern Turkey. Vector Borne Zoonotic Dis 2016; 16:797-799. [PMID: 27788060 DOI: 10.1089/vbz.2016.2012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The hard tick-borne relapsing fever agent, Borrelia miyamotoi infection in Ixodes ricinus ticks sampled from Istanbul and the countryside of Kirklareli in northwestern Turkey, was examined by TaqMan-PCR targeting 16S rDNA, nested PCR targeting 16S rDNA, the flagellin gene (flaB), and the 16S and 23S rDNA intergenic spacer (IGS), and sequencing analyses of these amplicons. B. miyamotoi was detected in 1 out of 248 I. ricinus ticks (infection rate 0.4%). The tick infected with B. miyamotoi was collected in Longos, Kirklareli province on the European side of Turkey near the Bulgarian border. The 16S rDNA, flaB, and IGS sequences from the infected tick showed high similarities to those of B. miyamotoi detected in I. ricinus in Europe.
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Affiliation(s)
- Keiko Sakakibara
- 1 Laboratory of Microbiology and Immunology, Faculty of Pharmacy, Chiba Institute of Science (CIS) , Choshi, Japan
| | - Ece Şen
- 2 Division of Microbiology, Department of Biology, Faculty of Science, Trakya University , Balkan Campus, Edirne, Turkey
| | - Kozue Sato
- 3 Department of Bacteriology, National Institute of Infectious Diseases , Tokyo, Japan
| | - Hiroki Kawabata
- 3 Department of Bacteriology, National Institute of Infectious Diseases , Tokyo, Japan .,4 United Graduate School of Agricultural Science & Veterinary Science, Gifu University , Gifu, Japan
| | - Norio Ohashi
- 5 School of Food and Nutritional Sciences, University of Shizuoka , Shizuoka, Japan
| | - Toshiyuki Masuzawa
- 1 Laboratory of Microbiology and Immunology, Faculty of Pharmacy, Chiba Institute of Science (CIS) , Choshi, Japan
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27
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Yoshida A, Kobayashi M, Sano K, Sakakibara K, Tanaka M. Results of art without PGD among patients with reciplocal translocation and robertosonian translocation. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Yip HK, Floyd SK, Sakakibara K, Bowman JL. Class III HD-Zip activity coordinates leaf development in Physcomitrella patens. Dev Biol 2016; 419:184-197. [PMID: 26808209 DOI: 10.1016/j.ydbio.2016.01.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/17/2016] [Accepted: 01/19/2016] [Indexed: 10/22/2022]
Abstract
Land plant bodies develop from meristems, groups of pluripotent stem cells, which may persist throughout the life of a plant or, alternatively, have a transitory existence. Early diverging land plants exhibit indeterminate (persistent) growth in their haploid gametophytic generation, whereas later diverging lineages exhibit indeterminate growth in their diploid sporophytic generation, raising the question of whether genetic machinery directing meristematic functions was co-opted between generations. Class III HD-Zip (C3HDZ) genes are required for the establishment and maintenance of shoot apical meristems in flowering plants. We demonstrate that in the moss Physcomitrella patens, C3HDZ genes are expressed in transitory meristems in both the gametophytic and sporophytic generations, but not in the persistent shoot meristem of the gametyphyte. Loss-of-function of P. patens C3HDZ was engineered using ectopic expression of miR166, an endogenous regulator of C3HDZ gene activity. Loss of C3HDZ gene function impaired the function of gametophytic transitory meristematic activity but did not compromise the functioning of the persistent shoot apical meristem during the gametophyte generation. These results argue against a wholesale co-option of meristematic gene regulatory networks from the gametophyte to the sporophyte during land plant evolution, instead suggesting that persistent meristems with a single apical cell in P. patens and persistent complex meristems in flowering plants are regulated by different genetic programs.
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Affiliation(s)
- Hoichong Karen Yip
- Section of Plant Biology, UC Davis, One Shields Avenue, Davis 95616, CA, USA
| | - Sandra K Floyd
- Section of Plant Biology, UC Davis, One Shields Avenue, Davis 95616, CA, USA; School of Biological Sciences, Monash University, Melbourne, Victoria 3800, Australia
| | - Keiko Sakakibara
- School of Biological Sciences, Monash University, Melbourne, Victoria 3800, Australia
| | - John L Bowman
- Section of Plant Biology, UC Davis, One Shields Avenue, Davis 95616, CA, USA; School of Biological Sciences, Monash University, Melbourne, Victoria 3800, Australia.
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29
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Nagase M, Sakakibara K, Honda N, Takada Y, Takada A. Does measurement of urinary rare proteins provide diagnostic significance in glomerular diseases? Contrib Nephrol 2015; 68:141-8. [PMID: 3069315 DOI: 10.1159/000416505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- M Nagase
- Department of Medicine, Hamamatsu University, School of Medicine, Japan
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30
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Furumizu C, Alvarez JP, Sakakibara K, Bowman JL. Antagonistic roles for KNOX1 and KNOX2 genes in patterning the land plant body plan following an ancient gene duplication. PLoS Genet 2015; 11:e1004980. [PMID: 25671434 PMCID: PMC4335488 DOI: 10.1371/journal.pgen.1004980] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 01/04/2015] [Indexed: 12/23/2022] Open
Abstract
Neofunctionalization following gene duplication is thought to be one of the key drivers in generating evolutionary novelty. A gene duplication in a common ancestor of land plants produced two classes of KNOTTED-like TALE homeobox genes, class I (KNOX1) and class II (KNOX2). KNOX1 genes are linked to tissue proliferation and maintenance of meristematic potentials of flowering plant and moss sporophytes, and modulation of KNOX1 activity is implicated in contributing to leaf shape diversity of flowering plants. While KNOX2 function has been shown to repress the gametophytic (haploid) developmental program during moss sporophyte (diploid) development, little is known about KNOX2 function in flowering plants, hindering syntheses regarding the relationship between two classes of KNOX genes in the context of land plant evolution. Arabidopsis plants harboring loss-of-function KNOX2 alleles exhibit impaired differentiation of all aerial organs and have highly complex leaves, phenocopying gain-of-function KNOX1 alleles. Conversely, gain-of-function KNOX2 alleles in conjunction with a presumptive heterodimeric BELL TALE homeobox partner suppressed SAM activity in Arabidopsis and reduced leaf complexity in the Arabidopsis relative Cardamine hirsuta, reminiscent of loss-of-function KNOX1 alleles. Little evidence was found indicative of epistasis or mutual repression between KNOX1 and KNOX2 genes. KNOX proteins heterodimerize with BELL TALE homeobox proteins to form functional complexes, and contrary to earlier reports based on in vitro and heterologous expression, we find high selectivity between KNOX and BELL partners in vivo. Thus, KNOX2 genes confer opposing activities rather than redundant roles with KNOX1 genes, and together they act to direct the development of all above-ground organs of the Arabidopsis sporophyte. We infer that following the KNOX1/KNOX2 gene duplication in an ancestor of land plants, neofunctionalization led to evolution of antagonistic biochemical activity thereby facilitating the evolution of more complex sporophyte transcriptional networks, providing plasticity for the morphological evolution of land plant body plans.
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Affiliation(s)
- Chihiro Furumizu
- School of Biological Sciences, Monash University, Melbourne, Australia
| | - John Paul Alvarez
- School of Biological Sciences, Monash University, Melbourne, Australia
| | - Keiko Sakakibara
- School of Biological Sciences, Monash University, Melbourne, Australia
- Graduate School of Science, University of Tokyo, Hongo, Tokyo, Japan
| | - John L. Bowman
- School of Biological Sciences, Monash University, Melbourne, Australia
- Department of Plant Biology, University of California Davis, Davis, California, United States of America
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31
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Yoshida A, Onodera H, Sakakibara K, Yamada Y, Tanaka M. Comparison of ART outcome between non-obstructive azoospermia and obstructive azoospermia: 15 years experiences. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Yoshida A, Sano K, Sakakibara K, Yamada Y, Tanaka M. Human zygotes respond to sperm DNA damage by slowing DNA replication. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Sakakibara K, Reisewitz P, Aoyama T, Friedrich T, Ando S, Sato Y, Tamada Y, Nishiyama T, Hiwatashi Y, Kurata T, Ishikawa M, Deguchi H, Rensing SA, Werr W, Murata T, Hasebe M, Laux T. WOX13-like genes are required for reprogramming of leaf and protoplast cells into stem cells in the moss Physcomitrella patens. Development 2014; 141:1660-70. [PMID: 24715456 DOI: 10.1242/dev.097444] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Many differentiated plant cells can dedifferentiate into stem cells, reflecting the remarkable developmental plasticity of plants. In the moss Physcomitrella patens, cells at the wound margin of detached leaves become reprogrammed into stem cells. Here, we report that two paralogous P. patens WUSCHEL-related homeobox 13-like (PpWOX13L) genes, homologs of stem cell regulators in flowering plants, are transiently upregulated and required for the initiation of cell growth during stem cell formation. Concordantly, Δppwox13l deletion mutants fail to upregulate genes encoding homologs of cell wall loosening factors during this process. During the moss life cycle, most of the Δppwox13l mutant zygotes fail to expand and initiate an apical stem cell to form the embryo. Our data show that PpWOX13L genes are required for the initiation of cell growth specifically during stem cell formation, in analogy to WOX stem cell functions in seed plants, but using a different cellular mechanism.
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34
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Sumigama S, Sugiyama C, Kotani T, Hayakawa H, Inoue A, Mano Y, Tsuda H, Furuhashi M, Yamamuro O, Kinoshita Y, Okamoto T, Nakamura H, Matsusawa K, Sakakibara K, Oguchi H, Kawai M, Shimoyama Y, Tamakoshi K, Kikkawa F. Uterine sutures at prior caesarean section and placenta accreta in subsequent pregnancy: a case-control study. BJOG 2014; 121:866-74; discussion 875. [DOI: 10.1111/1471-0528.12717] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2014] [Indexed: 11/27/2022]
Affiliation(s)
- S Sumigama
- Department of Obstetrics and Gynaecology; Nagoya University Graduate School of Medicine; Aichi Japan
| | - C Sugiyama
- Department of Obstetrics and Gynaecology; Gifu Prefectural Tajimi Hospital; Gifu Japan
| | - T Kotani
- Department of Obstetrics and Gynaecology; Nagoya University Graduate School of Medicine; Aichi Japan
| | - H Hayakawa
- Department of Obstetrics and Gynaecology; Kasugai Municipal Hospital; Aichi Japan
| | - A Inoue
- Department of Obstetrics and Gynaecology; Hekinan Municipal Hospital; Aichi Japan
| | - Y Mano
- Department of Obstetrics and Gynaecology; Nagoya University Graduate School of Medicine; Aichi Japan
| | - H Tsuda
- Department of Obstetrics and Gynaecology; Nagoya University Graduate School of Medicine; Aichi Japan
| | - M Furuhashi
- Department of Obstetrics and Gynaecology; Japanese Red Cross Nagoya Daiichi Hospital; Aichi Japan
| | - O Yamamuro
- Department of Obstetrics and Gynaecology; Nagoya Daini Red Cross Hospital; Aichi Japan
| | - Y Kinoshita
- Department of Obstetrics and Gynaecology; Ogaki Municipal Hospital; Gifu Japan
| | - T Okamoto
- Department of Obstetrics and Gynaecology; Chukyo Hospital; Aichi Japan
| | - H Nakamura
- Department of Obstetrics and Gynaecology; Gifu Prefectural Tajimi Hospital; Gifu Japan
| | - K Matsusawa
- Department of Obstetrics and Gynaecology; Anjo Kosei Hospital; Aichi Japan
| | - K Sakakibara
- Department of Obstetrics and Gynaecology; Okazaki City Hospital; Aichi Japan
| | - H Oguchi
- Department of Obstetrics and Gynaecology; Toyota Memorial Hospital; Aichi Japan
| | - M Kawai
- Department of Obstetrics and Gynaecology; Toyohashi Municipal Hospital; Aichi Japan
| | - Y Shimoyama
- Department of Pathology and Laboratory Medicine; Nagoya University Hospital; Aichi Japan
| | - K Tamakoshi
- Department of Nursing; Nagoya University School of Health Sciences; Aichi Japan
| | - F Kikkawa
- Department of Obstetrics and Gynaecology; Nagoya University Graduate School of Medicine; Aichi Japan
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Abstract
Class IV homeodomain leucine zipper (C4HDZ) genes are plant-specific transcription factors that, based on phenotypes in Arabidopsis thaliana, play an important role in epidermal development. In this study, we sampled all major extant lineages and their closest algal relatives for C4HDZ homologs and phylogenetic analyses result in a gene tree that mirrors land plant evolution with evidence for gene duplications in many lineages, but minimal evidence for gene losses. Our analysis suggests an ancestral C4HDZ gene originated in an algal ancestor of land plants and a single ancestral gene was present in the last common ancestor of land plants. Independent gene duplications are evident within several lineages including mosses, lycophytes, euphyllophytes, seed plants, and, most notably, angiosperms. In recently evolved angiosperm paralogs, we find evidence of pseudogenization via mutations in both coding and regulatory sequences. The increasing complexity of the C4HDZ gene family through the diversification of land plants correlates to increasing complexity in epidermal characters.
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Affiliation(s)
| | - Sandra K. Floyd
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Chihiro Furumizu
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Keiko Sakakibara
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
- Graduate School of Science, University of Tokyo, Hongo, Tokyo, Japan
| | | | - John L. Bowman
- Section of Plant Biology, University of California, Davis
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
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36
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Kobayashi M, Yoshida A, Tanaka M, Suzuki H, Sakakibara K, Tanigiwa S. Comparison of art clinical outcomes between patients with spinal cord injury and congenital bilateral absence of the vas deference. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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37
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Yamada Y, Yoshida A, Tanaka M, Suzuki H, Sakakibara K, Tanigiwa S. Good-quality blastocyst formation rate expected from embryo on the day3. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Sakakibara K, Kinoshita H, Ando K, Yasuda Y, Mori Y, Fujiwara Y. Right ventricular perforation due to a stabilizing bar installed for the Nuss procedure. Minerva Anestesiol 2013; 79:820-821. [PMID: 23419344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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39
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Sakakibara K, Ando S, Yip HK, Tamada Y, Hiwatashi Y, Murata T, Deguchi H, Hasebe M, Bowman JL. KNOX2 genes regulate the haploid-to-diploid morphological transition in land plants. Science 2013; 339:1067-70. [PMID: 23449590 DOI: 10.1126/science.1230082] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Unlike animals, land plants undergo an alternation of generations, producing multicellular bodies in both haploid (1n: gametophyte) and diploid (2n: sporophyte) generations. Plant body plans in each generation are regulated by distinct developmental programs initiated at either meiosis or fertilization, respectively. In mosses, the haploid gametophyte generation is dominant, whereas in vascular plants-including ferns, gymnosperms, and angiosperms-the diploid sporophyte generation is dominant. Deletion of the class 2 KNOTTED1-LIKE HOMEOBOX (KNOX2) transcription factors in the moss Physcomitrella patens results in the development of gametophyte bodies from diploid embryos without meiosis. Thus, KNOX2 acts to prevent the haploid-specific body plan from developing in the diploid plant body, indicating a critical role for the evolution of KNOX2 in establishing an alternation of generations in land plants.
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Affiliation(s)
- Keiko Sakakibara
- Department of Biological Science, Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Japan.
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40
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Okamoto Y, Sakakibara K, Inoue H, Suzuki S, Shindo S, Matsumoto M. [Aortic valve replacement and hemiarch replacement in a patient with a porcelain aorta]. Kyobu Geka 2009; 62:538-541. [PMID: 19588823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report a case of aortic valve replacement and hemiarch replacement with reconstruction of the brachiocephalic artery in a patient with a porcelain aorta. A 65-year-old man was admitted to the hospital for aortic stenosis. Computed tomography demonstrated severe aortic calcification and extensive calcification covering a wide area of the aorta. The echocardiography showed a highly calcified aortic valve and a pressure gradient of 109 mmHg across the aortic valve. At surgery, calcification of the ascending aorta was severe and involved its entire circumference. Therefore, 2 cannulae were inserted to the right axillary and right femoral arteries for extracorporeal circulation. We performed replacement of the ascending aorta and hemiarch with reconstruction of the brachiocephalic artery under circulatory arrest and antegrade cerebral perfusion, as well as aortic valve replacement with a 21 mm St. Jude Medical mechanical valve. He had no major cardiac complications during the postoperative course, and was discharged on postoperative day 33.
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Affiliation(s)
- Y Okamoto
- Second Department of Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Japan
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41
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Ikeda H, Hideshima T, Perrone G, Okawa Y, Raje N, Kawabe T, Sakakibara K, Saito N, Richardson P, Anderson K. Effect of the specific P53 stabilizer CBS9106 on multiple myeloma (MM). J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.8601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
8601 Background: The mutations of P53 tumor suppressor protein are associated with progressive in Multiple Myeloma (MM), conversely, stabilization of P53 leads to cell cycle arrest and apoptosis. In this study, we examined p53 protein expression and demonstrated the effect of P53 stabilization using a novel specific P53 stabilizer CBS9106 in MM. Method: We examined P53 protein expression using Immunoblot analysis, as well as the growth inhibitory effect of CBS9106 in MM cell lines and primary tumor cells from MM patients. We also defined whether CBS9106 can overcome the growth promoting effect of exogenous cytokines and bone marrow stroma cells (BMSCs) using [3H]-thymidine uptake assay. Results: Expression of P53 protein was observed in 3/3 primary tumor cells from MM patients and 6/6 MM cell lines. CBS9106 at low nM levels triggered cytotoxicity against p53 wild type MM cell lines and primary tumor cells from MM patients, associated with phosphorylation of P53 (serine15 and 20). In contrast, CBS9106 did not affect the survival of normal peripheral blood mononuclear cells from healthy volunteers at concentrations as high as 10 μM. This agent also induced G1 cell cycle arrest, followed by apoptosis associated with cleavage of caspase-3, -8, -9 and PARP. Neither growth stimulating cytokines (IL-6 and IGF-1) nor BMSCs protected against apoptotic effect of CBS9106. Moreover, we demonstrate that combination of CBS9106 with MDM2 inhibitor Nutrin3 or proteasome inhibitor bortezomib induces synergistic anti-MM activity in both P53 wild type MM cell lines and primary tumor cells from MM patients. Conclusions: Stabilizing P53 by CBS9106 represents a novel promising p53-based therapy in MM. These results provide the preclinical framework supporting evaluation of CBS9106 in clinical trials to improve patient outcome in MM. No significant financial relationships to disclose.
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Affiliation(s)
- H. Ikeda
- Dana-Farber Cancer Institute, Boston, MA; CanBas Co., Ltd, Numazu, Japan
| | - T. Hideshima
- Dana-Farber Cancer Institute, Boston, MA; CanBas Co., Ltd, Numazu, Japan
| | - G. Perrone
- Dana-Farber Cancer Institute, Boston, MA; CanBas Co., Ltd, Numazu, Japan
| | - Y. Okawa
- Dana-Farber Cancer Institute, Boston, MA; CanBas Co., Ltd, Numazu, Japan
| | - N. Raje
- Dana-Farber Cancer Institute, Boston, MA; CanBas Co., Ltd, Numazu, Japan
| | - T. Kawabe
- Dana-Farber Cancer Institute, Boston, MA; CanBas Co., Ltd, Numazu, Japan
| | - K. Sakakibara
- Dana-Farber Cancer Institute, Boston, MA; CanBas Co., Ltd, Numazu, Japan
| | - N. Saito
- Dana-Farber Cancer Institute, Boston, MA; CanBas Co., Ltd, Numazu, Japan
| | - P. Richardson
- Dana-Farber Cancer Institute, Boston, MA; CanBas Co., Ltd, Numazu, Japan
| | - K. Anderson
- Dana-Farber Cancer Institute, Boston, MA; CanBas Co., Ltd, Numazu, Japan
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42
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Sugimoto T, Yamamoto K, Sakakibara K, Uehara A, Mishima T, Sato M, Yoshii S, Kasuya S. [Assessment of proximal aortic anastomosis device in coronary artery bypass grafting]. Kyobu Geka 2009; 62:175-181. [PMID: 19280945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The aim of this study was to assess the feasibility and safety of a new proximal anastomotic device (PAD) "Enclose II" in coronary artery bypass grafting (CABG). PAD enables the construction of a proximal aortic anastomosis without the use of partial clamp of the ascending aorta, thus reduces the incidence of adverse perioperative neurologic injury related to atheroembolic events. This device was used in 41 off-pump CABG and 11 on-pump beating heart CABG patients for performing 46 radial artery (RA) and 9 vein anastomoses to the aorta. The subjects were 43 males and 9 females, with a mean age of 63.6 years. Thirteen (25%) patients had severe atherosclerotic cerebrovascular lesions preoperatively. The mean flow in the RA graft was 52.4 +/- 26.9 ml/min and that of saphenous vein graft (SVG) was 61.1 +/- 31.9 ml/min. Angiography showed all grafts patent. There was no procedure-related adverse events or cerebrovascular complication. Enclose II device can be a valuable tool to perform RA and vein anastomoses in CABG.
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Affiliation(s)
- T Sugimoto
- Department of Cardiovascular Surgery, Tachikawa Medical Center, Nagaoka, Japan
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43
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Sakakibara K, Nishiyama T, Deguchi H, Hasebe M. Class 1 KNOX genes are not involved in shoot development in the moss Physcomitrella patens but do function in sporophyte development. Evol Dev 2008; 10:555-66. [PMID: 18803774 DOI: 10.1111/j.1525-142x.2008.00271.x] [Citation(s) in RCA: 123] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Although the number and form of metazoan organs are determined in the embryo, plants continuously form organs via pluripotent stem cells contained within the meristem. Flowering plants have an indeterminate meristem in their diploid generation, whereas the common ancestor of land plants is inferred to have formed an indeterminate meristem in its haploid generation, as observed in the extant basal land plants, bryophytes, including mosses. It is hypothesized that the underlying gene networks for the diploid meristem were initially present in the haploid generation of the basal land plants and were eventually co-opted for expression in the diploid generation. In flowering plants, the class 1 KNOTTED1-LIKE HOMEOBOX (KNOX) transcription factors are essential for the function of the indeterminate apical meristem. Here, we show that the class 1 KNOX orthologs function in the diploid organ, with determinate growth in the moss Physcomitrella patens, but do not function in the haploid indeterminate meristem. We propose that the genetic networks governing the indeterminate meristem in land plants are variable, and the networks governing the diploid indeterminate meristem with the class 1 KNOX genes likely evolved de novo in the flowering plant lineage.
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Affiliation(s)
- Keiko Sakakibara
- Biological Science, Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Japan
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44
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Suzuki S, Kajiyama H, Shibata K, Ino K, Nawa A, Sakakibara K, Matsuzawa K, Takeda A, Kinoshita Y, Kawai M, Nagasaka T, Kikkawa F. Is there any association between retroperitoneal lymphadenectomy and survival benefit in ovarian clear cell carcinoma patients? Ann Oncol 2008; 19:1284-1287. [PMID: 18356137 DOI: 10.1093/annonc/mdn059] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S Suzuki
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - H Kajiyama
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - K Shibata
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Ino
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - A Nawa
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Sakakibara
- Department of Obstetrics and Gynecology, Okazaki City Hospital, Okazaki
| | - K Matsuzawa
- Department of Obstetrics and Gynecology, Anjyo Kosei Hospital, Anjyo
| | - A Takeda
- Department of Obstetrics and Gynecology, Gifu Prefectural Tajimi Hospital, Tajimi
| | - Y Kinoshita
- Department of Obstetrics and Gynecology, Ogaki Municipal Hospital, Ogaki
| | - M Kawai
- Department of Obstetrics and Gynecology, Toyohashi Municipal Hospital, Toyohashi
| | - T Nagasaka
- Division of Pathology, Clinical Laboratory, Nagoya University Hospital, Nagoya, Japan
| | - F Kikkawa
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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45
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Okamura M, Takeuchi T, Jameson RA, Kondrashev S, Kashiwagi H, Sakakibara K, Kanesue T, Tamura J, Hattori T. Direct plasma injection scheme in accelerators. Rev Sci Instrum 2008; 79:02B314. [PMID: 18315180 DOI: 10.1063/1.2821590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The idea of direct plasma injection scheme (DPIS) was proposed in 2000. This new technique has been studied and proven to accelerate intense ion beams. To provide medium mass ions with highly charged states, small tabletop solid lasers were used for plasma production. Based on the measured plasma properties, aluminum and carbon ions were accelerated with more than 60 mA of current. The next experiments will use an radio frequency quadrupole designed for q/m=1/6 and explore beam productions using targets up to silver, and future work will explore production up to uranium. The DPIS has been established and is ready to be used with various accelerators which require pulsed high current, high charge state ion beams.
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Affiliation(s)
- M Okamura
- Brookhaven National Laboratory, NY 11973, USA.
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46
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Iida Y, Sugimoto T, Mishima T, Uehara A, Sakakibara K, Yamamoto K, Yoshii S, Kasuya S. [On-pump beating coronary artery bypass grafting with axillary cannulation in the presence of atherosclerotic lesions in the ascending aorta]. Kyobu Geka 2008; 61:73-77. [PMID: 18186278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A 72-year-old man was admitted to our hospital for dyspnea and chest pain. Coronary artery bypass grafting (CABG) was scheduled because of severe stenosis of the left main trunk. Computed tomography showed severe atherosclerotic lesions in the whole aorta, especially in the ascending aorta. Although off-pump CABG was thought to be the 1st choice, we determined that it would be difficult to establish a cardiac support device due to atherosclerotic lesions in case of sudden deterioration. We performed on-pump beating CABG with axillary cannulation with an 8 mm tube graft. Postoperatively, we recognized no symptoms of stroke, and the patient was discharged on the 12th postoperative day. Axillary cannulation using a side graft was useful in the presence of atherosclerotic lesions in the ascending aorta.
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Affiliation(s)
- Yasunori Iida
- Department of Cardiovascular Surgery, Tachikawa General Hospital, Nagaoka, Japan
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47
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Rensing SA, Lang D, Zimmer AD, Terry A, Salamov A, Shapiro H, Nishiyama T, Perroud PF, Lindquist EA, Kamisugi Y, Tanahashi T, Sakakibara K, Fujita T, Oishi K, Shin-I T, Kuroki Y, Toyoda A, Suzuki Y, Hashimoto SI, Yamaguchi K, Sugano S, Kohara Y, Fujiyama A, Anterola A, Aoki S, Ashton N, Barbazuk WB, Barker E, Bennetzen JL, Blankenship R, Cho SH, Dutcher SK, Estelle M, Fawcett JA, Gundlach H, Hanada K, Heyl A, Hicks KA, Hughes J, Lohr M, Mayer K, Melkozernov A, Murata T, Nelson DR, Pils B, Prigge M, Reiss B, Renner T, Rombauts S, Rushton PJ, Sanderfoot A, Schween G, Shiu SH, Stueber K, Theodoulou FL, Tu H, Van de Peer Y, Verrier PJ, Waters E, Wood A, Yang L, Cove D, Cuming AC, Hasebe M, Lucas S, Mishler BD, Reski R, Grigoriev IV, Quatrano RS, Boore JL. The Physcomitrella Genome Reveals Evolutionary Insights into the Conquest of Land by Plants. Science 2007; 319:64-9. [DOI: 10.1126/science.1150646] [Citation(s) in RCA: 1452] [Impact Index Per Article: 85.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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48
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Abstract
As more plant genome sequences become available, researchers are increasingly using comparative genomics to address some of the major questions in plant biology. Such questions include the evolution of photosynthesis and multicellularity, the developmental genetic changes responsible for alterations in body plan, and the origin of important plant innovations such as roots, leaves, and vascular tissue.
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Affiliation(s)
- John L Bowman
- School of Biological Sciences, Monash University, Clayton Campus, Melbourne, Victoria 3800, Australia.
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49
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Sakakibara K, Hom R, Ryer E, Kamiya K, Liu B, Kent K. Transforming growth factor—beta inhibits vascular smooth muscle cell proliferation through a mechanism that involves protein kinase C-delta and cyclin a. J Surg Res 2006. [DOI: 10.1016/j.jss.2005.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Sano R, Juárez CM, Hass B, Sakakibara K, Ito M, Banks JA, Hasebe M. KNOX homeobox genes potentially have similar function in both diploid unicellular and multicellular meristems, but not in haploid meristems. Evol Dev 2005; 7:69-78. [PMID: 15642091 DOI: 10.1111/j.1525-142x.2005.05008.x] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Members of the class 1 knotted-like homeobox (KNOX) gene family are important regulators of shoot apical meristem development in angiosperms. To determine whether they function similarly in seedless plants, three KNOX genes (two class 1 genes and one class 2 gene) from the fern Ceratopteris richardii were characterized. Expression of both class 1 genes was detected in the shoot apical cell, leaf primordia, marginal part of the leaves, and vascular bundles by in situ hybridization, a pattern that closely resembles that of class 1 KNOX genes in angiosperms with compound leaves. The fern class 2 gene was expressed in all sporophyte tissues examined, which is characteristic of class 2 gene expression in angiosperms. All three CRKNOX genes were not detected in gametophyte tissues by RNA gel blot analysis. Arabidopsis plants overexpressing the fern class 1 genes resembled plants that overexpress seed plant class 1 KNOX genes in leaf morphology. Ectopic expression of the class 2 gene in Arabidopsis did not result in any unusual phenotypes. Taken together with phylogenetic analysis, our results suggest that (a) the class 1 and 2 KNOX genes diverged prior to the divergence of fern and seed plant lineages, (b) the class 1 KNOX genes function similarly in seed plant and fern sporophyte meristem development despite their differences in structure, (c) KNOX gene expression is not required for the development of the fern gametophyte, and (d) the sporophyte and gametophyte meristems of ferns are not regulated by the same developmental mechanisms at the molecular level.
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Affiliation(s)
- Ryosuke Sano
- National Institute for Basic Biology, Okazaki 444-8585, Japan
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