A5087024097- Optical measurement and interference techniques
- Plant-Microbe Interactions and Immunity
- Insect-Plant Interactions and Control
- Plant Parasitism and Resistance
- Advanced Measurement and Metrology Techniques
- Fungal Plant Pathogen Control
- Plant Pathogens and Fungal Diseases
- Fatigue and fracture mechanics
- Plant biochemistry and biosynthesis
- Plant Pathogenic Bacteria Studies
- Plant Molecular Biology Research
- Surface Roughness and Optical Measurements
- Plant Reproductive Biology
- Advanced Fiber Optic Sensors
- Structural Health Monitoring Techniques
- Advanced Measurement and Detection Methods
- Silicon and Solar Cell Technologies
- Plant nutrient uptake and metabolism
- Advanced Surface Polishing Techniques
- Diet, Metabolism, and Disease
- Optical Systems and Laser Technology
- Insect and Pesticide Research
- Plant and animal studies
- Thermography and Photoacoustic Techniques
- Non-Destructive Testing Techniques
Kagawa University
2016-2025
Tokyo Denki University
2010-2021
Gene Therapy Laboratory
2013-2014
Washington State University
2012
Duke University
2012
Southeastern Louisiana University
2011
Institute of Agrobiological Sciences
2005-2009
Kyoto University
2008
Ehime University
2008
Nagoya University
2003-2006
Gibberellin (GA) regulates growth and development in plants. We isolated characterized a rice GA-insensitive dwarf mutant,gid2. The GID2 gene encodes putative F-box protein, which interacted with the Skp1 homolog yeast two-hybrid assay. In gid2, repressor for GA signaling, SLR1, was highly accumulated phosphorylated form increased its concentration, whereas SLR1 rapidly degraded by through ubiquitination wild type. conclude that is positive regulator of signaling regulated degradation...
Abstract Although the importance of auxin in root development is well known, molecular mechanisms involved are still unknown. We characterized a rice (Oryza sativa) mutant defective crown formation, rootless1 (crl1). The crl1 showed additional auxin-related abnormal phenotypic traits roots, such as decreased lateral number, insensitivity and impaired gravitropism, whereas no were observed aboveground organs. Expression Crl1, which encodes member plant-specific ASYMMETRIC LEAVES2/LATERAL...
Summary The phytohormone gibberellin (GA) controls growth and development in plants. Previously, we identified a rice F‐box protein, gibberellin‐insensitive dwarf2 (GID2), which is essential for GA‐mediated DELLA protein degradation. In this study, analyzed the biological molecular properties of GID2. Expression GID2 preferentially occurred organs actively synthesizing GA. Domain analysis revealed that C‐terminal regions were function, but not N‐terminal region. Yeast two‐hybrid assay...
Summary GAMYB is a component of gibberellin (GA) signaling in cereal aleurone cells, and has an important role flower development. However, it unclear how function regulated. We examined the involvement microRNA, miR159, regulation expression cells In no miR159 was observed with or without GA treatment, suggesting that not involved ‐like genes this tissue. expressed tissues other than aleurone, over‐expressors showed similar but more severe phenotypes gamyb mutant. are co‐expressed anthers,...
The plant hormone jasmonic acid (JA) has a crucial role in both host immunity and development plants. Here, we report the importance of JA signaling defense system rice. Exogenous application conferred resistance to bacterial blight caused by Xanthomonas oryzae pv. (Xoo) Expression OsJAZ8, rice jasmonate ZIM-domain protein, was highly up-regulated JA. OsJAZ8 interacted with putative OsCOI1, which is component SCFCOI1 E3 ubiquitin ligase complex, coronatine-dependent manner. also formed...
In tobacco (Nicotiana tabacum), wounding causes rapid activation of two mitogen-activated protein kinases (MAPKs), wound-induced kinase (WIPK) and salicylic acid (SA)-induced (SIPK), the subsequent accumulation jasmonic (JA). Our previous studies suggested that WIPK is required for production JA. However, exact role remains unresolved. We generated transgenic plants in which either or SIPK were silenced using RNA interference to define roles wound response. addition, both examine possibility...
Jasmonic acid (JA) and salicylic (SA) play important roles in plant defense systems. JA SA signaling pathways interact antagonistically dicotyledonous plants, but, the status of crosstalk between is unknown monocots. Our rice microarray analysis showed that more than half genes upregulated by analog BTH are also JA, suggesting a major portion SA-upregulated regulated JA-dependent rice. A common system activated both thus proposed which plays an role pathogen responses
Abstract Jasmonic acid ( JA ) is involved in the regulation of host immunity plants. Recently, we demonstrated that signalling has an important role resistance to rice bacterial blight caused by X anthomonas oryzae pv. Xoo rice. Here, report many volatile compounds accumulate response exogenous application , including monoterpene linalool. Expression linalool synthase was up‐regulated . Vapour treatment with induced and transgenic plants overexpressing were more presumably due up‐regulation...
JASMONATE ZIM-domain (JAZ) proteins act as transcriptional repressors of jasmonic acid (JA) responses and play a crucial role in the regulation host immunity plants. Here, we report that OsMYC2, JAZ-interacting transcription factor rice (Oryza sativa L.), plays an important resistance response against bacterial blight, which is one most serious diseases rice, caused by Xanthomonas oryzae pv. (Xoo). The results showed OsMYC2 interacted with some OsJAZ domain (JID)-dependent manner....
The mitogen-activated protein kinase (MAPK) cascade is involved in responses to biotic and abiotic stress plants. In this study, we isolated a new MAPK, NtMPK4, which tobacco homolog of Arabidopsis MPK4 (AtMPK4). NtMPK4 was activated by wounding along with two other wound-responsive MAPKs, WIPK SIPK. We found that salicylic acid-induced (SIPKK), has been as an SIPK-interacting MAPK kinase. activity-suppressed tobacco, wound-induced expression jasmonic acid (JA)-responsive genes inhibited....
Since auxin was first isolated and characterized as a plant hormone, the underlying molecular mechanism of signaling has been elucidated primarily in dicot plants represented by Arabidopsis. In monocot plants, remained unclear, despite various physiological experiments. To understand function rice (Oryza sativa), we focused on IAA gene, well-studied gene Arabidopsis that serves negative regulator signaling. We found 24 family members genome. OsIAA3 is one these whose expression rapidly...
Jasmonic acid (JA) is a plant hormone that plays an important role in the defense response and stable growth of rice. In this study, we investigated JA-responsive valine-glutamine (VQ)-motif-containing protein OsVQ13 JA signaling was primarily located nucleus cytoplasm. The transgenic rice plants overexpressing exhibited JA-hypersensitive phenotype increased JA-induced resistance to Xanthomonas oryzae pv. (Xoo), which bacteria causes bacterial blight, one most serious diseases Furthermore,...
Abstract The plant hormone jasmonic acid (JA) is a signalling compound involved in the regulation of cellular defence and development plants. In this study, we investigated roles JA‐responsive MYB transcription factor, JMTF1, JA‐regulated response against rice bacterial blight caused by Xanthomonas oryzae pv. ( Xoo ). JMTF1 did not interact with any JASMONATE ZIM‐domain (JAZ) proteins. Transgenic plants overexpressing showed JA‐hypersensitive phenotype enhanced resistance . upregulated...
Light-induced stomatal opening in C3 and C4 plants is mediated by two signalling pathways. One pathway specific for blue light involves phototropins, while the second depends on photosyntheticaly active radiation (PAR). Here, role of NtMPK4 light-induced was studied, as silencing this MAP kinase stimulates opening. Stomata NtMPK4-silenced do not close elevated atmospheric CO(2), show a reduced response to PAR. However, closure can still be induced abscisic acid. Measurements using...
The soil-borne bacterial pathogen Ralstonia solanacearum invades a broad range of plants through their roots, resulting in wilting the plant, but no effective protection against this disease has been developed. Two wilt disease-inhibiting compounds were biochemically isolated from tobacco and identified as sclareol cis-abienol, labdane-type diterpenes. When exogenously applied to cis-abienol inhibited tobacco, tomato Arabidopsis without exhibiting any antibacterial activity. Microarray...
<title>Abstract</title> Jasmonic acid (JA) is involved in the regulation of rice defense responses against <italic>Xanthomonas oryzae</italic> pv. <italic>oryzae</italic> (<italic>Xoo</italic>). JA also affects other plant hormone signaling to maximize JA-induced rice. In this study, we investigated JA- and auxin-mediating system using a gain-of-function mutant OsIAA13, suppressor auxin signaling, The expression some auxin-responsive <italic>expansin</italic>s was downregulated...