A5019995146- Lignin and Wood Chemistry
- Biofuel production and bioconversion
- Plant Gene Expression Analysis
- Plant nutrient uptake and metabolism
- Rice Cultivation and Yield Improvement
- Crop Yield and Soil Fertility
- Aluminum toxicity and tolerance in plants and animals
- Plant Parasitism and Resistance
- Plant Stress Responses and Tolerance
- Insect and Arachnid Ecology and Behavior
- Advanced Cellulose Research Studies
- Silicon Effects in Agriculture
- Natural Fiber Reinforced Composites
- Enzyme-mediated dye degradation
- Food composition and properties
- Plant and animal studies
- thermodynamics and calorimetric analyses
- Bee Products Chemical Analysis
- Plant tissue culture and regeneration
- Fermentation and Sensory Analysis
- GABA and Rice Research
- Algal biology and biofuel production
- Nanocomposite Films for Food Packaging
- Belt Conveyor Systems Engineering
- Mining Techniques and Economics
Kyoto University
2012-2024
Niigata University
2021-2024
Termites represent one of the most efficient lignocellulose decomposers on earth. The mechanism by which termites overcome recalcitrant lignin barrier to gain access embedded polysaccharides for assimilation and energy remains largely unknown. In present study, softwood, hardwood, grass diets were fed Coptotermes formosanus workers, structural differences between original resulting feces examined solution-state multidimensional nuclear magnetic resonance (NMR) techniques as well...
Summary Breeding approaches to enrich lignins in biomass could be beneficial improving the biorefinery process because increase heating value and represent a potent source of valuable aromatic chemicals. However, despite fact that grasses are promising lignocellulose feedstocks, limited information is yet available for molecular‐breeding upregulate lignin biosynthesis grass species. In this study, we generated lignin‐enriched transgenic rice ( Oryza sativa ), model species, via targeted...
Recent analyses of cell wall components various grass mutant and transgenic lines have provided information on characteristic transcriptional regulation formation in grasses, although its knowledge yet remains limited compared with that for eudicot formation. MYB transcription factors, which are regarded as downstream regulators operating under NAM, ATAF1/2, CUC2 (NAC) domain been suggested to be involved direct biosynthesis. In this review, we discuss MYB-mediated the biosynthesis lignins,...
The 4-coumarate:coenzyme A ligase (4CL) is a key enzyme that contributes to channeling metabolic flux in the cinnamate/monolignol pathway, leading production of monolignols, p-hydroxycinnamates, and flavonoid tricin, major building blocks lignin polymer grass cell walls. Vascular plants often contain multiple 4CL genes; however, contribution each isoform biosynthesis remains unclear, especially grasses. In this study, we characterized functions two rice (Oryza sativa L.) isoforms (Os4CL3...
Abstract Lignin is a complex phenylpropanoid polymer deposited in plant cell walls. has long been recognized as an important limiting factor for the polysaccharide-oriented biomass utilizations. To mitigate lignin-associated recalcitrance, numerous mutants and transgenic plants that produce lignocellulose with reduced lignin contents and/or lignins altered chemical structures have produced characterised. However, it not fully understood how chemistry affects supramolecular structure of...
Abstract Sorghum [ bicolor (L.) Moench] has been gaining attention as a feedstock for biomass energy production. While it is obvious that nitrogen (N) supply significantly affects sorghum growth and accumulation, our knowledge still limited regarding the effect of N on quality sorghum, such contents structures lignin other cell wall components. Therefore, in this study, we investigated effects structure composition walls. The walls hydroponically cultured seedlings grown under sufficient or...
Abstract Under potassium (K)-deficient conditions, rice (Oryza sativa L.) actively takes up and utilizes sodium (Na) as an alternative element to K. In this study, we cloned a gene responsible for cultivar differences in shoot Na accumulation using map-based cloning method. The OsHKT2;1 encodes transporter associated with uptake root tissues, its expression level was positively correlated potential 11 cultivars. We found that overexpression promoted under low K supply proposed is key factor...
Lignocellulose biomass is indispensable for establishing sustainable societies. Trees and large-sized grasses are the major sources of lignocellulose biomass. Moreover, greatly surpass trees in terms productivity. With an overall aim to improve usability, it vital lignin content simplify structures plants via metabolic engineering. In this mini review, recent studies engineering grass mainly from authors' research group summarized, which includes characterization properties augmentation...
Bioengineering approaches to modify lignin content and structure in plant cell walls have shown promise for facilitating biochemical conversions of lignocellulosic biomass into valuable chemicals. Despite numerous research efforts, however, the effect altered chemistry on supramolecular assembly lignocellulose consequently its deconstruction lignin-modified transgenic mutant plants is not fully understood. In this study, we aimed close gap by analyzing rice (Oryza sativa L.) mutants...
Sodium (Na) application has marked beneficial effects on plant growth when the potassium (K) supply is low. Under low K supply, three japonica rice (Oryza sativa L.) cultivars, Koshihikari, Nipponbare, and Sasanishiki, accumulated more Na than indica IR36, IR64, Kasalath, effect of was greater in Koshihikari plants IR64 plants. A quantitative trait locus (QTL) analysis using a population backcross inbred lines derived from Kasalath identified two significant loci associated with shoot...
A comprehensive understanding of the structure and properties gramineous lignocelluloses is needed to facilitate their uses in biorefinery. In this study, from fractionated internode tissues two taxonomically close species, Erianthus arundinaceus sugarcane (Saccharum spp.), were characterized. Our analyses determined that syringyl (S) lignins predominant over guaiacyl (G) or p-hydroxyphenyl (H) tissues; on other hand, S lignin levels similar those G tissues. addition, tricin units detected...
Abstract Sodium uptake is a factor that determines potassium use efficiency in plants as sodium can partially replace plant cells. Rice ( Oryza sativa ) roots usually exclude but actively take it up when the deficient potassium. In rice roots, transporter OsHKT2;1 mediates active uptake. We previously revealed variation expression of underlies accumulation between low‐sodium‐accumulating indica cultivar, IR64, and high‐sodium‐accumulating japonica Koshihikari. present study, we evaluated...
Sorghum [Sorghum bicolor (L.) Moench] has been receiving attention as a feedstock for biomass energy. Since nitrogen (N) significantly affects the plant production, diagnosing N status of sorghum during its growth would be significant. Therefore, in this study, we analyzed changes several physiological parameters response to limitation, with aim identifying candidates biomarkers species. Parameters responding early and sensitively deficiency were searched hydroponically cultured seedlings,...
Abstract The details of the lignocellulose deconstruction processes in digestive systems wood-feeding insects remain elusive. This study aimed to examine biochemical conversion system a anobiid beetle, Nicobium hirtum, one most important pests wooden products Japan. To this end, N. hirtum larvae were fed with Japanese red pine (softwood) and beech (hardwood) sapwood diets, as well an artificial diet containing Shorea wood sawdust. structural differences between original digested (feces)...
Sodium uptake is a factor that determines potassium use efficiency in plants as sodium can partially replace plant cells. Rice ( Oryza sativa ) roots usually exclude but actively take it up when the deficient potassium. In rice roots, transporter OsHKT2;1 mediates active uptake. We previously revealed variation expression of underlie between low-sodium-uptake indica cultivar, IR64, and high-sodium-uptake japonica Koshihikari. present study, we evaluated IR64 its near-isogenic line IR64-K...
This study investigated the effects of adding ammonium dihydrogen phosphate (ADP) on physical and chemical changes a water-soluble extract inner part oil palm trunk (OPT) to clarify bonding mechanism binderless particleboard. The extract’s effect ADP-added particleboard was also investigated. OPT particles were treated by hot water at 60 °C for 6 h. Water-soluble obtained. ADP added 0, 10, 40 wt%, mixtures heated 180 10 min. Furthermore, particleboards using manufactured with similar...
Abstract Background and Objective Nitrogen fertilizer applied as top‐dressing to rice plants before flowering affects the yield quality of grains. However, little is known about effects varying dosages nitrogen at this stage on brewing properties sake using To explore topic, we cultivated cultivar “Koshitanrei” with low high levels (equivalent 10 kg 30 N per hectare, respectively) 1 week then conducted a small‐scale test harvested rice. Findings Sake made from low‐N treatment was fermented...