哺乳動物の雌雄生殖機構について，分子生物学的に解析している。さらに，加齢，肥満や感染症などが生殖機構に及ぼす影響についての研究も行っている。これらの基礎研究から，生殖能力を高める個体管理法，人工授精や体外受精などの繁殖技術開発も実施している。
Our main topic is a molecular mechanism of reproductive biology in mammals. The effects of aging, obesity and infection on reproductive performance are also our targets. From the basic studies, we are trying to develop a reproductive technology, such as artificial insemination, in vitro fertilization, sperm sexing and so on.

Keywords: 卵子|排卵、受精/ 体外受精、体外成熟、卵巣、生殖補助技術（医療）、精子形成、精巣、精子保存

1. Female reproductive life span is extended by targeted removal of fibrotic collagen from the mouse ovary, SCIENCE ADVANCES, 8巻, 24号, 20220617
2. Toll-like Receptor 2 is Involved in Calcium Influx and Acrosome Reaction to Facilitate Sperm Penetration to Oocytes During in vitro Fertilization in Cattle, FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY, 10巻, 20220224
3. ★, Inhibition of PI 3-kinase or MEK Leads to Suppression of p34cdc2 kinase Activity and Meiotic Progression beyond the MI stage in Porcine Oocyte Surrounded with Cumulus Cells., Biology of Reproduction, 65巻, 2号, pp. 442-448, 20010401

動物ゲノム情報を利用した哺乳類および鳥類の分子進化，分子系統および分子地理学的な基礎研究を基盤に，在来野生動物の生息，生態を理解し生態系および生物多様性の保全保護に協力し貢献する。ゲノム情報を基に家畜および家禽のドメスティケーションを解明するとともに，在来家畜家禽の環境適応や生産に関わるゲノム領域を明らかにし，スマート農業に寄与する研究を実践する。
Based on the molecular evolution, molecular phylogeny and molecular geography of mammals and birds using animal genome information, we cooperate and contribute to the conservation and protection of ecosystems and biodiversity. Moreover, we elucidate the domestication of animals and poultry from genomic information, clarify the genomic structure related to environmental adaptation and production of native animals and poultry, and practice research that contributes to Smart Agriculture.

Keywords: 中央アジア(カザフスタン)／遺伝資源／ラクダ／サイガ、家畜家禽化|遺伝子流動|分子系統生態学、保全|遺伝的多様性、進化|動物遺伝資源、ゲノム|家禽|家禽遺伝資源、ゲノム解析|動物遺伝資源|分子系統学、調査|キジ目|分子遺伝学、鳥類|抗病性|遺伝子発現、家畜|ゲノム

1. Insights on the historical biogeography of Philippine domestic pigs and its relationship with continental domestic pigs and wild boars, PLOS ONE, 17巻, 3号, 2022
2. Origin and Demographic History of Philippine Pigs Inferred from Mitochondrial DNA, FRONTIERS IN GENETICS, 12巻, 20220125
3. ★, Molecular evidence for hybridization of species in the genus Gallus except for Gallus varius., Animal Genetics, 36巻, 5号, pp. 367-375, 20051001

健全な乳生産を目的として，乳牛の周産期飼養管理および哺育管理を栄養学および内分泌代謝学，管理学の視点から研究している。具体的には，成長因子の分泌や作用を促進する栄養素の探索とその応用，暑熱ストレスを軽減する栄養素の探索とその応用などである。また，センシングやIoT技術を活用した飼養管理のデジタルトランスフォーメーションにも取り組んでいる。
Our research focuses on improving dairy nutrition and feeding management for healthy milk production. Especially, I am focused on the relationship between dietary nutrient and growth factor secretion and action, and between dietary nutrient and barn condition (heat stress). And I am also working on the digital transformation of dairy management using sensing and IoT technology.

Keywords: 反芻動物|消化管ホルモン、グルカゴン様ペプチド1、グレリン、泌乳牛、子牛、代謝

1. Changes of photosynthetic pigments and phytol content at different levels of nitrogen fertilizer in Italian ryegrass fresh herbage and hay, GRASSLAND SCIENCE, 68巻, 1号, pp. 53-59, 202201
2. Rumen microbiota and its relation to fermentation in lactose-fed calves, JOURNAL OF DAIRY SCIENCE, 104巻, 10号, pp. 10744-10752, 202110
3. ★, Plasma concentrations of glucagon-like peptide 1 and 2 in calves fed calf starters containing lactose., Journal of Dairy Science, 2017

海洋の生物資源の持続的利用のためには，海洋生態系の根幹である微細藻類（植物プランクトン）の理解とマネージメントが必要である。漁業生産の場である沿岸域，サンゴ礁域，マングローブ域等の特色ある海域毎に，彼らの増殖促進による海域の肥沃化に取り組むとともに，一部の有害種が引き起こす赤潮・貝毒等のマネージメントにも取り組んでいる。
For sustainable utilization of marine biological resources, understanding and management of microalgae (single cell algae or phytoplankton) which are the basis of marine ecosystem are necessary. At unique coastal areas such as Seto Inland Sea of Japan, coral reefs and mangrove swamps which are the fields of fishery production, fertilization of the coastal areas is tackled by the multiplication promotion of their growth, and management of red tide and shellfish poisonings caused by some harmful species is also tackled.

Keywords: バラスト水、褐虫藻、植物プランクトン、海洋基礎生産、サンゴ礁、有害藻類、海洋生物の共生、沿岸漁業の再生、微細藻類、光合成

1. Can Acropora tenuis larvae attract native Symbiodiniaceae cells by green fluorescence at the initial establishment of symbiosis?, PLoS ONE, 16巻, 6号, pp. e0252514., 202106
2. Symbiodiniacean cell supply method for improvement in survival of Tridacna squamosa seeds, NIPPON SUISAN GAKKAISHI, 87巻, 2号, pp. 123-131, 202101
3. ★, Fecal pellets of giant clams as a route for transporting Symbiodiniaceae to corals, PLOS ONE, 15巻, 12号, 202012

生物が微生物同士や共生宿主，環境とどのように相互作用して生息しているのかの解明を実験微・ビックデータ解析の両面から取り組む。特に，気候変動と微生物(感染症)との関係，居住空間の病原微生物ゲノム動態，養殖場の病原微生物・抗生物質耐性，に着目している。
Our research focuses on understanding how microorganisms interact with each other, with their symbiotic hosts and with the environment, both experimentally and through big data analysis. Topics includes the relationship between climate change and microbes, genomic dynamics of pathogenic microbes in habitats, and pathogenic microbes and antibiotic resistance in aquaculture. 

Keywords: 微生物免疫システム、進化・生態、外来因子、微生物ゲノム・メタゲノム、恒常性、生物間・生物-無生物相互作用、細菌叢・細菌群集、微生物・感染症学、環境感染症

1. Protocol of living cell separation using the microfluidic dielectrophoresis integrated chip, STAR Protoc., 3巻, 3号, pp. 101527, 20220916
2. Diversity and characteristics of pTet family plasmids revealed by genomic epidemiology of Campylobacter jejuni from human patients in Toyama, Japan from 2015 to 2019, bioRxiv, 20220628
3. ★, Continuation and replacement of Vibrio cholerae non‐O1 clonal genomic groups isolated from Plecoglossus altivelis fish in freshwaters, Environ Microbiol., 22巻, 10号, pp. 4473-4484, 20200816

バイオマスエネルギー技術の開発と途上国への適用
農業生態学及び持続可能な農業技術の開発
Development of biomass energy technologies and application to developing countries
Agricultural ecology and development of sustainable agricultural technologies

Keywords: 持続的農業、食品化学、育種、バイオ科学、雑草防除、分析化学

1. Identification and Isolation Techniques for Plant Growth Inhibitors in Rice, SEPARATIONS, 10巻, 2号, 202302
2. Benzimidazole Derivatives Suppress Fusarium Wilt Disease via Interaction with ERG6 of Fusarium equiseti and Activation of the Antioxidant Defense System of Pepper Plants, JOURNAL OF FUNGI, 9巻, 2号, 202302
3. Feasibility of 10 MW Biomass-Fired Power Plant Used Rice Straw in Cambodia, ENERGIES, 16巻, 2号, 202301

熱帯から温帯の森林・農耕地・湿地・都市緑地など様々な生態系における昆虫の多様性や生態学的機能について研究を行っている。また，生物多様性保全の観点から，自然ツーリズムや子どもの自然遊び，野生動物との軋轢など，人間と自然の相互作用に関する研究も行っている。
I have been working on the diversity and ecological functions of insects in various ecosystems including forests, agricultural lands, wetlands, and urban green spaces. Also, I am interested in the interactions between human and nature, such as nature-based tourism, children's nature play and conflicts with wildlife, from the perspective of biodiversity conservation.

Keywords: 生態学、生物多様性、昆虫学、種子食性昆虫、熱帯雨林、一斉開花、食糞性コガネムシ、持続的森林管理、都市生態学、昆虫を対象としたレクレーションやツーリズム、人間ー自然相互作用

1. ★, 都市における「自然との触れ合い」のベネフィット：新たな人間－自然関係の構築へ向けて．, Wildlife Forum, 27巻, 2号, pp. 14-17, 202302
2. Key environmental factors underlying terrestrial arthropod abundance and diversity in alley-cropping and monoculture oil palm plantations, Tropics, In press巻, 202306
3. Parents? orientation is more important for children?s visits to greenspaces than the availability of spaces and time, LANDSCAPE AND URBAN PLANNING, 235巻, 202307

里山生態系の植生・景観生態に関する研究・教育で，幅広い保全問題に取り組む。
-里山景観の地理的分布パターンに関する研究
-里山の生物多様性保全
Research and education on vegetation and landscape ecology of SATOYAMA ecosystems with a wide range of conservation issues.
-Geographic distribution patterns of rural landscapes
-Biodiversity conservation in SATOYAMA

Keywords: 景観生態学、里地・里山、生物多様性保全、水生植物

1. Clonal structure and flowering traits of a bamboo [Phyllostachys pubescens (Mazel) Ohwi] stand grown from a simultaneous flowering as revealed by AFLP analysis, Molecular Ecology, 13巻, pp. 2017-2021, 20040427
2. ISOLATION AND CHARACTERIZATION OF MICROSATELLITE LOCI FOR THE ENDANGERED WETLAND PLANT ADENOPHORA PALUSTRIS (CAMPANULACEAE), APPLICATIONS IN PLANT SCIENCES, 4巻, 9号, 201609
3. Evaluation of the Environmental DNA Method for Estimating Distribution and Biomass of Submerged Aquatic Plants, PLOS ONE, 11巻, 6号, 20160615

水産資源の持続的な利用を実現する社会を目指し，水産有用無脊椎動物の繁殖や成長に関する研究に取り組んでいる。現在は，イセエビ・セミエビ類の繁殖生態や幼生発育について基礎研究および応用研究を実施し，種苗生産技術の開発を目指している。
Our studies focus on reproduction and growth of marine invertebrates towards sustainable uses of fishery resources. Current main project is development of a seed production technique for spiny and slipper lobsters based on the fundamental and applied researches of these animals.

Keywords: 甲殻類の増養殖、海産無脊椎動物の生活史戦略

1. Diversification of cephalic shield shape and antenna in phyllosoma I of slipper and spiny lobsters (Decapoda: Achelata), FRONTIERS IN MARINE SCIENCE, 10巻, 20230327
2. Finding the missing puzzle piece of the nisto stage in the larval cycle of the slipper lobster Scyllarides squammosus: a molecular and morphological approach, ZOOLOGICAL STUDIES, 61巻, pp. 73-1-73-12, 202212
3. Exploring evolutionary trends within the Pennellidae (Copepoda: Siphonostomatoida) using molecular data, SYSTEMATIC PARASITOLOGY, 99巻, 4号, pp. 477-489, 202208

骨格筋幹細胞や筋再生に注目し，老化や糖尿病などによる骨格筋の萎縮を予防する栄養素の役割を研究している。また，栄養素による食欲調節機構の解明も行っており，抗肥満を目指した機能性食品や医薬品の開発も目指している。
I am interested in the roles of nutrients in promoting muscle health and preventing muscle atrophy such as in aging and diabetes, focusing on muscle regeneration and muscle stem cells. My second topic is appetite regulation by nutrients for developing anti-obesity functional foods or drugs.

Keywords: skeletal muscle、muscle stem cells (satellite cells)、muscle regeneration、functional foods、bioactive compounds、carnosine/Homocarnosine、obesity、GABA、vitamin B6

1. Effect of pressure cooking on phenolic compounds of quinoa, Grain & Oil Science and Technology, 20230330
2. Exogenous Penicillium camemberti Lipase Preparation Exerts Prebiotic-like Effects by Increasing Cecal Bifidobacterium and Lactobacillus Abundance in Rats, FERMENTATION-BASEL, 9巻, 3号, 202303
3. ★, Inhibition of calcium-calmodulin complex formation by vasorelaxant basic dipeptides demonstrated by in vitro and in silico analyses, Biochimica et Biophysica Acta- General Subjects, 1840巻, pp. 3073-3078, 2014

私は植物の光合成に着目して作物生産の向上を目指しています。気候変動に適応できる持続可能な農業に興味があります。植物が栽培環境に応じて自ら栽培管理を最適化できるシステムの構築を目指しています。
My lab focuses on photosynthesis for improving crop production. I also try to address questions involving the climate change, stress physiology, and sustainable and smart agriculture. My dream is to develop an automatic system where plant optimize their management by themselves. 

Keywords: 光合成、ガス交換、現象学、陸上植物・作物の生理生態学

1. Arabidopsis BSD2 reveals a novel redox regulation of Rubisco physiology in vivo, Plant Signaling and Behavior, 15巻, 4号, 20200402
2. ★, Overexpression of BUNDLE SHEATH DEFECTIVE 2 improves the efficiency of photosynthesis and growth in Arabidopsis, Plant Journal, 102巻, 1号, pp. 129-137, 20200401
3. Overexpression of the protein disulfide isomerase AtCYO1 in chloroplasts slows dark-induced senescence in Arabidopsis, BMC Plant Biology, 18巻, 1号, 20180504

微生物が微生物同士や共生宿主、環境とどのように相互作用して生息しているのかの解明を、フィールドワーク・実験・ビッグデータ解析から取り組んでいる。特に我々が研究対象としている空気や水は、人が住んでいる環境と自然環境が密接に影響を及ぼし合っている。そのため、これらの環境を大きな一つの生態系として捉え理解するために、分野や国境を超えた研究を展開している。
In our lab, we use bioinformatics to explore the fascinating world of airborne and aquatic microbes. Our view of these environments is holistic, part of a larger ecosystem. To discover the interactions between microorganisms and their environment, we bring together global experts across disciplines, integrating fieldwork with genomic analysis. 

Keywords: 相互作用、高速シーケンサー、細菌群集、ゲノム微生物学、メタゲノム、微生物生態学、微生物学

1. The holobiome of marine harmful algal blooms (HABs): A novel ecosystem-based approach for implementing predictive capabilities and managing decisions, Environmental Science & Policy, 143巻, pp. 44-54, 202305
2. Learning from mistakes: challenges in finding holobiont factors from environmental samples and the importance of methodological consistency, CURRENT OPINION IN BIOTECHNOLOGY, 80巻, 202304
3. Zooplankton act as cruise ships promoting the survival and pathogenicity of pathogenic bacteria, MICROBIOLOGY AND IMMUNOLOGY, 66巻, 12号, pp. 564-578, 202212