研究者紹介システム

坂本 克彦
サカモト カツヒコ
バイオシグナル総合研究センター
教授
農学関係
Last Updated :2021/04/12

研究者情報

所属

  • 【主配置】

    バイオシグナル総合研究センター
  • 【配置】

    大学院農学研究科 生命機能科学専攻

学位

  • 博士(理学), 横浜市立大学

授業科目

ジャンル

  • 環境・交通 / 農業

コメントテーマ

  • 昆虫
  • チョウ目昆虫幼虫の農薬感受性リズム

研究活動

論文

  • Functional characterization of insect-specific RabX6 of Bombyx mori

    Tomohide UNO, Yusuke OZAKIYA, Masayuki FURUTANI, Katsuhiko SAKAMOTO, Yuichi UNO, Kengo KANAMARU, Akira MIZOGUCHI

    2019年01月, Histochemistry and Cell Biology, 151, 187 - 198, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Ginga SHIMAKAWA, Kentaro IFUKU, Yuji SUZUKI, Amane MAKINO, Kimitsune ISHIZAKI, Hiroshi FUKAYAMA, Ryutaro MORITA, Katsuhiko SAKAMOTO, Akiko NISHI, Chikahiro MIYAKE

    Japan Society for Bioscience, Biotechnology, and Agrochemistry, 2018年12月, Bioscience, Biotechnology and Biochemistry, 82 (12), 2072 - 2083, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Effects of mild and low temperature incubation on heat tolerance in Bombyx mori embryos.

    Daisuke MATSUOKA, Katsuhiko SAKAMOTO

    2018年07月, American Journal of Entomology, 2 (2), 6 - 9, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Localization and functional analysis of the insect-specific RabX4 in the brain of Bombyx mori.

    Tomohide UNO, Masayuki FURUTANI, Katsuhiko SAKAMOTO, Yuichi UNO, Kengo KANAMARU, Akira MIZOGUCHI, Susumu HIRAGAKI, Makio TAKEDA

    Rab proteins are small monomeric GTPases/GTP-binding proteins, which form the largest branch of the Ras superfamily. The different Rab GTPases are localized to the cytosolic face of specific intracellular membranes, where they function as regulators of distinct steps in membrane trafficking. RabX4 is an insect-specific Rab protein that has no close homolog in vertebrates. There

    2017年09月, Archives of Insect Biochemistry and Physiology, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Shion Akitomo, Yuichi Egi, Yuki Nakamura, Yoshitaka Suetsugu, Katsutaka Oishi, Katsuhiko Sakamoto

    The bivoltine silkworm Bombyx mori (Lepidoptera: Bombycidae) exhibits a maternally controlled embryonic diapause. Maternal silkworms decide whether to lay diapause or nondiapause eggs depending on environmental factors such as the temperature and photoperiod during the egg and larval stages, and then induce diapause eggs during the pupal stage. However, little is known about the molecular mechanism that conveys the outcome of whether to produce diapause or nondiapause eggs from the egg or larval stages to the pupal stage. This study used microarray analysis to investigate differentially expressed genes in the larval brains of diapause- and nondiapause-egg producers, to which bivoltine silkworms were destined by thermal or photic stimulation during the egg stage. The cytochrome P450 18a1 and Kruppel homolog 1 genes were upregulated in producers of diapause eggs compared with those of nondiapause eggs under both experimental conditions. Cytochrome P450 18a1 encodes a key enzyme for steroid hormone inactivation and Kruppel homolog 1 is an early juvenile hormone-inducible gene that mediates the repression of metamorphosis. The upregulation of these genes during the larval stage might be involved in the signaling pathway that transmits information about the diapause program from the egg stage to the pupal stage in the silkworm.

    WILEY, 2017年04月, INSECT SCIENCE, 24 (2), 187 - 193, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Does DNA methylation play a role in photoperiodic diapause of moths?

    Yuichi EGI, Hiroki TSUBOUCHI, Katsuhiko SAKAMOTO

    The present study pharmacologically investigated the involvement of DNA methylation in photoperiodic diapause of the domestic silkworm Bombyx mori (Lepidoptera: Bombycidae) and the Chinese giant silkmoth Antheraea pernyi (Lepidoptera: Saturniidae). The DNA methyltransferase inhibitor 5-azacytidine was dietarily given to larvae of B. mori under short days or long days. However,

    2016年07月, Journal of Entomology and Zoology Studies, 4 (4), 458 - 460, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Daisuke Takagi, Kentaro Ifuku, Ken-ichi Ikeda, Kanako Ikeda Inoue, Pyoyun Park, Masahiro Tamoi, Hironori Inoue, Katsuhiko Sakamoto, Ryota Saito, Chikahiro Miyake

    Lipid-derived reactive carbonyl species (RCS) possess electrophilic moieties and cause oxidative stress by reacting with cellular components. Arabidopsis (Arabidopsis thaliana) has a chloroplast-localized alkenal/one oxidoreductase (AtAOR) for the detoxification of lipid-derived RCS, especially alpha,beta-unsaturated carbonyls. In this study, we aimed to evaluate the physiological importance of AtAOR and analyzed AtAOR (aor) mutants, including a transfer DNA knockout, aor (T-DNA), and RNA interference knockdown, aor (RNAi), lines. We found that both aor mutants showed smaller plant sizes than wild-type plants when they were grown under day/night cycle conditions. To elucidate the cause of the aor mutant phenotype, we analyzed the photosynthetic rate and the respiration rate by gas-exchange analysis. Subsequently, we found that both wildtype and aor (RNAi) plants showed similar CO2 assimilation rates; however, the respiration rate was lower in aor (RNAi) than in wild-type plants. Furthermore, we revealed that phosphoenolpyruvate carboxylase activity decreased and starch degradation during the night was suppressed in aor (RNAi). In contrast, the phenotype of aor (RNAi) was rescued when aor (RNAi) plants were grown under constant light conditions. These results indicate that the smaller plant sizes observed in aor mutants grown under day/night cycle conditions were attributable to the decrease in carbon utilization during the night. Here, we propose that the detoxification of lipid-derived RCS by AtAOR in chloroplasts contributes to the protection of dark respiration and supports plant growth during the night.

    AMER SOC PLANT BIOLOGISTS, 2016年04月, PLANT PHYSIOLOGY, 170 (4), 2024 - 2039, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Yuichi Egi, Katsuhiko Sakamoto

    This study investigated daily changes in susceptibility to insecticides in the silkworm Bombyx mori (Lepidoptera: Bombycidae). The daily rhythm of permethrin susceptibility in fifth instar larvae of the p63-silkworm strain was significant, with the lowest mortality rate during the late photophase under a 12-h light-12-h dark cycle. The rhythms were similar whether permethrin was intraperitoneally injected into hemolymph or topically applied to the dorsal abdomen. Drug intake through the cuticle probably did not significantly contribute to the organization of this susceptibility rhythm. We also found that the daily susceptibility profiles depended on insecticide type and silkworm strain. Temporal susceptibility variations might be attributable to the drug metabolic system. To our knowledge, this is the first description of an insecticide susceptibility rhythm in the larval stage of lepidopteran insects. Specifically timed delivery of insecticides might enable more efficient control of pest caterpillars that cause serious crop damage.

    TAYLOR & FRANCIS LTD, 2016年03月, BIOLOGICAL RHYTHM RESEARCH, 47 (2), 247 - 252, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Rab proteins in the brain and corpus allatum of Bombyx mori.

    Tomohide UNO, Masayuki FURUTANI, Chihiro WATANABE, Katsuhiko SAKAMOTO, Yuichi UNO, Kengo KANAMARU, Hiroshi YAMAGATA, Akira MIZOGUCHI, Makio TAKEDA

    2016年, Histochemistry and Cell Biology, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Takuma Nishimura, Tomohiro Fujii, Katsuhiko Sakamoto, Kaoru Maeto

    The braconid parasitoid wasp that attacks exposed lepidopteran larvae, Meteorus pulchricornis (Wesmael), is a common natural enemy of pest caterpillars and may serve as a biological control agent. Recently spreading nighttime lighting for the control of noctuid moths may affect the behavior of the parasitoid if it is nocturnal, but little is known about its daily activity patterns. This study investigated the locomotor activity of M. pulchricornis under various light conditions. Over a daily 16-h light:8-h dim light cycle (16L8Dim), the wasps were inactive during most of the photophase (16L), gradually becoming active late in the photophase, with activity levels peaking just after the switch to the scotophase (8Dim). Subsequently, during the scotophase, activity decreased to a moderate level and continued at that level until the switch to the photophase. In addition, after transfer from daily light/dim light cycles (16L8Dim), daily fluctuations in activity persisted for at least 1 day under continuous light or dim light conditions. This is the first report describing the nocturnal activity rhythm of parasitoid wasps and the suppression of their activity under strong light conditions.

    SPRINGER JAPAN KK, 2015年11月, APPLIED ENTOMOLOGY AND ZOOLOGY, 50 (4), 525 - 531, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Qiushi Wang, Ikumi Hanatani, Makio Takeda, Katsutaka Oishi, Katsuhiko Sakamoto

    The present study investigated the pharmacological properties of dopamine receptors that functioned in the termination of pupal diapause in the Chinese oak silkmoth, Antheraea pernyi (Lepidoptera: Saturniidae). Dopamine receptors are classified according to their structure and function into two subfamilies as D1- and D2-like receptors. D1-like receptors activate, whereas D2-like receptors inhibit, adenylate cyclase. We examined the effects of agonists and antagonists selective for D1- and D2-like receptors on the diapause state. As A.pernyi is a long-day species, pupal diapause is maintained during short days and can be terminated by exposure to a long-day photoperiod. The D2-like receptor-selective agonist quinpirole delayed the timing of adult emergence under long days, and the D2-receptor-selective antagonist sulpiride terminated pupal diapause even under a short-day photoperiod. The D1-like receptor-selective agonist and antagonist, SKF-38393 and SCH-23390, respectively, caused no significant effects on diapause pupae. These results suggest that not D1- but D2-like receptors mediated diapause regulation in A.pernyi. This dopamine pathway appeared to block the termination of pupal diapause. Furthermore, the actions of the cAMP analog 8-CPT-cAMP and dopamine receptor antagonists upon diapause pupae were similar, which supports the notion that D2-like receptors involved in diapause of this insect prevent adenylate cyclase from producing cAMP like vertebrate D2-like receptors. Taken together, our findings suggest that dopamine blocked diapause termination through D2-like receptors that inhibited adenylate cyclase in A.pernyi. During short days under which diapause was maintained in pupae, the dopaminergic mechanism might be stimulated to suppress cAMP levels in cells regulating diapause.

    WILEY-BLACKWELL, 2015年04月, ENTOMOLOGICAL SCIENCE, 18 (2), 193 - 198, 英語

    [査読有り]

    研究論文(学術雑誌)

  • FLAVODIIRON2 and FLAVODIIRON4 proteins mediate an oxygen-dependent alternative electron flow in Synechocystis sp. PCC 6803 under CO2-limited conditions.

    Ginga SHIMAKAWA, Keiichiro SHAKU, Akiko NISHI, Ryosuke HAYASHI, Hiroshi YAMAMOTO, Katsuhiko SAKAMOTO, Amane MAKINO, Chikahiro MIYAKE

    This study aims to elucidate the molecular mechanism of an alternative electron flow (AEF) functioning under suppressed (CO2-limited) photosynthesis in the cyanobacterium Synechocystis sp. PCC 6803. Photosynthetic linear electron flow, evaluated as the quantum yield of photosystem II [Y(II)], reaches a maximum shortly after the onset of actinic illumination. Thereafter, Y(II) t

    American Society of Plant Biologists, 2015年02月, Plant Physiology, 167 (2), 472 - 480, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Qiushi Wang, Yuichi Egi, Makio Takeda, Katsutaka Oishi, Katsuhiko Sakamoto

    The present study investigated the functional involvement of melatonin and dopamine in photoperiodism to terminate pupal diapause in the Chinese oak silkmoth, Antheraea pernyi (Lepidoptera: Saturniidae). Diapause in this long-day (short-night) species is maintained during long nights and can be terminated by exposure to a short-night photoperiod. We observed the effects of melatonin and dopamine and their receptor antagonists on diapause pupae. Melatonin and flupentixol, a dopamine receptor antagonist, terminated pupal diapause even under long-night photoperiods. Dopamine and luzindole, a melatonin receptor antagonist, retarded adult emergence during short nights, whereas melatonin advanced the timing of adult emergence under the short-night photoperiod in a manner dependent on the number of injections. The results of the day-length extension experiment indicated that a change in the photoperiod was immediately detected as mRNA expression of the rate-limiting enzyme of melatonin production. These findings suggest that the melatonin pathway transmits information on the photoperiod to terminate the pupal diapause of A.pernyi. The melatonin pathway also inhibited the dopamine production system, and the dopamine pathway inhibited the melatonin production system. We propose an insect model of the photoperiodic counter driven by mutual inhibition between the melatonin and dopamine pathways.

    WILEY-BLACKWELL, 2015年01月, ENTOMOLOGICAL SCIENCE, 18 (1), 74 - 84, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Yuichi Egi, Shion Akitomo, Tsuguru Fujii, Yutaka Banno, Katsuhiko Sakamoto

    In the silkworm, Bombyx mori (Lepidoptera: Bombycidae), embryonic diapause is under maternal control and the decision between diapause and direct development in bivoltine strains depends on environmental factors such as temperature and photoperiod experienced by the preceding generation. We reared ten bivoltine silkworm strains (c10, g32, k06, n25, p21, p22, p24, p44, p50 and p63) under various thermal and light conditions and examined the incidence of embryonic diapause in the next generation to identify strains in which the incidence of diapause can be controlled within the range of 0 to 100% by adjusting a single ambient parameter. Some strains were clearly destined towards either diapause or direct development. The diapause incidence in the c10, p22 and p50 strains was controlled by temperature during the egg stage (0% at 18 degrees C and 100% at 25 degrees C), that in the p50 strain was also determined to be dependent on illumination during the egg stage (0% under continuous darkness and 100% under continuous illumination), and photoperiod during the larval stage regulated diapause in p44 and p50 (0% and 100% under long-day and short-day photoperiod, respectively), when all other external parameters remained constant under each experimental condition. These diapause-controllable silkworm strains might serve as model systems for studies of insect diapause, especially for the differential screening of related factors.

    WILEY-BLACKWELL, 2014年10月, ENTOMOLOGICAL SCIENCE, 17 (4), 396 - 399, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Tomohide Uno, Yuri Isoyama, Kazuki Sakamoto, Yuichi Uno, Katsuhiko Sakamoto, Kengo Kanamaru, Hiroshi Yamagata, Michihiro Takagi, Akira Mizoguchi, Makio Takeda

    Rab guanosine triphosphatases in eukaryotic cells are key regulators of membrane-trafficking events, such as exocytosis and endocytosis. Rab7 regulates traffic from early to late endosomes and from late endosomes to vacuoles/lysosomes. The Rab7-interacting lysosomal protein (RILP) was extracted from the silkworm, Bombyx mori (B. mori), and expressed in Escherichia coli (E. coli), followed by its purification. The glutathione sulfotransferase pull-down assay revealed that Rab7 of B. mori interacted with RILP of B. mori. We then produced antibodies against RILP of B. mori in rabbits for their use in Western immunoblotting and immunohistochemistry. Western immunoblotting of brain tissue for RILP revealed a single band, at approximately 50 kD. RILP-like immunohistochemical reactivity (RILP-ir) was restricted to neurons of the pars intercerebralis and dorsolateral protocerebrum. Furthermore, RILP-ir was colocalized with the eclosion hormone-ir and bombyxin-ir. However, RILP-ir was not colocalized with prothoracicotropic hormone-ir. These results were similar to those of Rab7 from our previous study. These findings suggest that RILP and Rab7 are involved in the neurosecretion in a restricted subtype of neurons in B. mori. Thus, our study is the first to report of a possible relationship between an insect Rab effector and neurosecretion.

    SPRINGER, 2014年03月, HISTOCHEMISTRY AND CELL BIOLOGY, 141 (3), 311 - 320, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Moon Soo Park, Yuichi Egi, Makio Takeda, Katsuhiko Sakamoto

    Insects have both a circadian oscillatory system in peripheral tissues and a master clock in the central nervous system. However, the distribution of oscillator cells in the digestive system that is indispensable for nutrient intake has not been described in detail. This study immunohistochemically investigates cellular localization of the clock protein PERIOD in the larval midgut of the silkworm Bombyx mori (Lepidoptera: Bombycidae). PERIOD-like immunoreactivity was not uniformly distributed and was located exclusively in goblet cells of the midgut epithelium. The primary role of goblet cells is the active transport of potassium from hemolymph into the gut lumen. However, these cells might function as a peripheral clock that regulates the daily rhythms of physiological activities in the midgut of silkworm larvae.

    TAYLOR & FRANCIS LTD, 2014年, BIOLOGICAL RHYTHM RESEARCH, 45 (3), 369 - 374, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Functional analysis of the AKR4C subfamily in Arabidopsis thaliana: Model Structures, Substrate Specificity, Acrolein Toxicity, and Responses to Light and [CO2].

    Ryota Saito, Ginga Shimakawa, Akiko Nishi, Tatsuya Iwamoto, Katsuhiko Sakamoto, Hiroshi Yamamoto, Katsumi Amako, Amane Makino, Chikahiro Miyake

    In Arabidopsis thaliana, the aldo-keto reductase (AKR) family includes four enzymes (The AKR4C subfamily: AKR4C8, AKR4C9, AKR4C10, and AKR4C11). AKR4C8 and AKR4C9 might detoxify sugar-derived reactive carbonyls (RCs). We analyzed AKR4C10 and AKR4C11, and compared the enzymatic functions of the four enzymes. Modeling of protein structures based on the known structure of AKR4C9 f

    Japan Society for Bioscience, Biotechnology, and Agrochemistry, 2013年10月, Bioscience Biotechnology and Biochemistry, 77 (10), 2038 - 2045, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Ginga Shimakawa, Mayumi Suzuki, Eriko Yamamoto, Akiko Nishi, Ryota Saito, Katsuhiko Sakamoto, Hiroshi Yamamoto, Amane Makino, Chikahiro Miyake

    To elucidate the scavenging systems of sugar- and lipid-derived reactive carbonyls (RCs) in the cyanobacterium Synechocystis sp. PCC 6803 (S. 6803), we selected proteins from S. 6803 based on amino-acid (AA) sequence similarities with proteins from Arabidopsis thaliana, and characterized the properties of the GST-fusion proteins expressed. Slr0942 catalyzed the aldo-keto reductase (AKR) reaction scavenging mainly sugar-derived RCs, methylglyoxal (MG). Slr1192 is the medium-chain dehydrogenase/redutase (MDR). It catalyzed the AKR reaction scavenging several lipid-derived RCs, acrolein, propionaldehyde, and crotonaldehyde. Slr0315 is a short-chain dehydrogenase/redutase (SDR), and it catalyzed only the reduction of MG in the AKR reaction. Slr0381 catalyzed the conversion of hemithioacetal to S-lactoylglutahione (SLG) in the glyoxalase (GLX) 1 reaction. Sll1019 catalyzed the conversion of SLG to glutathione and lactate in the GLX2 reaction. GLX1 and GLX2 compose the glyoxalase system, which scavenges MG. These enzymes contribute to scavenging sugar- and lipid-derived RCs as scavenging systems.

    Japan Society for Bioscience, Biotechnology, and Agrochemistry, 2013年, Bioscience, Biotechnology and Biochemistry, 77 (12), 2441 - 2448, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Photoreception in decapitated larvae of the silkworm, Bombyx mori.

    Hiroyuki Nobata, Katsutaka Oishi, Makio Takeda, Katsuhiko Sakamoto

    To investigate the photoreception that controls daily oscillations at the periphery in insects, we decapitated larvae of the silkworm Bombyx mori (Lepidoptera: Bombycidae) by ligature, and observed rhythms in their peripheral tissues under several light conditions. We measured the mRNA expression of period (per) and timeless (tim), which are homologues of Drosophila clock genes

    Entomological Society of Japan, 2012年, Photoreception in decapitated larvae of the silkworm, Bombyx mori., 15, 392 - 399, 英語

    [査読有り]

    研究論文(学術雑誌)

  • FGF21 is dispensable for hypothermia induced by fasting in mice

    Katsutaka Oishi, Katsuhiko Sakamoto, Morichika Konishi, Yusuke Murata, Nobuyuki Itoh, Hiroyoshi Sei

    BACKGROUND: Fibroblast growth factor 21 (FGF21) is a key metabolic regulator that is induced by peroxisome proliferator-activated receptor alpha (PPAR alpha) activation in response to fasting. We recently reported that bezafibrate, a panagonist of PPARs, decreases body temperature late at night through hypothalamic neuropeptide Y (NPY) activation and others have shown that mice overexpressing FGF21 are prone to torpor. OBJECTIVES: We examined whether FGF21 is essential for fasting-induced hypothermia using FGF21 knockout (KO) mice. RESULTS: Acute fasting decreased body temperature late at night accompanied by the induction of hepatic FGF21 and hypothalamic NPY expression in wild-type mice. A deficiency of FGF21 affected neither fasting-induced hypothermia nor hypothalamic NPY induction. Fasting enhanced locomotor activity in both genotypes. On the other hand, a deficiency of FGF21 significantly attenuated chronic hypothermia and hypoactivity induced by a ketogenic diet (KD). CONCLUSIONS: Our findings suggest that FGF21 is not essential for the hypothermia that is associated with the early stages of fasting, although it might be involved in the adaptive response of body temperature to chronic starvation.

    MAGHIRA & MAAS PUBLICATIONS, 2010年, NEUROENDOCRINOLOGY LETTERS, 31 (2), 198 - 202, 英語

    [査読有り]

    研究論文(学術雑誌)

  • Two-dimensional selection of circadian rhythm-related genes.

    Ryoko Morioka, Masanori Arita, Katsuhiko Sakamoto, soshi Kawaguchi, Hajime Tei, Katsuhisa Horimoto

    Many genes related to the circadian rhythm, especially those involved in phase shifts induced by different environmental stimuli, still remain enigmatic. In this study, the authors monitored the expression of rat genes measured with multiple phase-resetting stimuli, and developed a technique to extract the candidate genes for the changes in circadian rhythm by the stimuli, from

    IET Digital Library, 2009年, IET System Biology, 3 (6), 487 - 495, 英語

    [査読有り]

    研究論文(国際会議プロシーディングス)

講演・口頭発表等

  • 昆虫におけるP450遺伝子の発現に及ぼす摂食の影響

    岩井酉樹, 坂本克彦

    日本農芸化学会関西支部 第506回講演会, 2018年12月, 日本語, 神戸大学, 国内会議

    口頭発表(一般)

  • セミの抜け殻が植物の生育に及ぼす影響

    梅澤高徳, 坂本克彦

    日本農芸化学会関西支部 第506回講演会, 2018年12月, 日本語, 神戸大学, 国内会議

    口頭発表(一般)

  • 寄主のJHA処理によるギンケハラボソコマユバチの大型化

    岡澤圭祐, 坂本克彦, 前藤 薫

    日本昆虫学会第78回大会, 2018年09月, 日本語, 名城大学, 国内会議

    ポスター発表

  • Detection of gene expression for photopigments in the Onchidium neurons.

    Takako NISHI, Katsuhiko SAKAMOTO

    JSCPB 2017 Fukuoka, 2017年11月, 日本語, 福岡大学, 国内会議

    ポスター発表

  • 昆虫におけるP450遺伝子の発現に及ぼす摂食の影響

    岩井酉樹, 坂本克彦

    西日本応用動物昆虫研究会・日本昆虫学会中国支部 平成29年度合同例会, 2017年10月, 日本語, 神戸大学, 国内会議

    口頭発表(一般)

  • 寄主のJHA処理理によるギンケハラボソコマユバチの⼤型化

    岡澤圭祐, 前藤 薫, 坂本克彦

    平成29年度西日本応用動物昆虫研究会・日本昆虫学会中国支部合同例会, 2017年10月, 日本語, 神戸大学, 国内会議

    口頭発表(一般)

  • セミの抜け殻が植物の生育に及ぼす影響

    梅澤高徳, 坂本克彦

    西日本応用動物昆虫研究会・日本昆虫学会中国支部 平成29年度合同例会, 2017年10月, 日本語, 神戸大学, 国内会議

    口頭発表(一般)

  • チョウ目昆虫幼虫の農薬感受性リズム制御機構の解明

    江木 雄一, 坂本 克彦

    日本農芸化学会関西支部 第487回講演会, 2014年12月, 日本語, 日本農芸化学会関西支部, 神戸大農学部, 国内会議

    口頭発表(一般)

  • チョウ目昆虫幼虫の農薬感受性リズムの解析

    江木 雄一, 坂本 克彦

    日本昆虫学会近畿支部2014年度大会, 2014年12月, 日本語, 日本昆虫学会近畿支部, 大阪市立自然史博物館, 国内会議

    口頭発表(一般)

  • サクサン蛹の休眠覚醒における光周性にはメラトニンが関与する

    江木 雄一, 王 秋実, 坂本 克彦

    第21回日本時間生物学会学術大会, 2014年11月, 日本語, 日本時間生物学会, 九州大学医学部百年講堂, 国内会議

    ポスター発表

  • Melatonin pathway transmits information to terminate pupal diapause and functions as a photoperiodic counter in the oak silkmoth, Antheraea pernyi.

    Yuichi EGI, Qiushi WANG, Kazuki Sakamoto

    JSC International Symposium, 2014年11月, 日本語, 日本時間生物学会, 九州大学医学部百年講堂, 国際会議

    ポスター発表

  • マイクロアレイ解析によるカイコ休眠制御遺伝子の網羅的検索

    江木 雄一, 秋友 紫苑, 坂本 克彦

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    第57回日本応用動物昆虫学会大会, 2013年03月, 日本語, 藤沢(日本大学生物資源科学科), 国内会議

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  • 休眠制御可能な2化性カイコ系統の選別

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  • 昆虫の休眠制御機構解明への挑戦

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  • 断頭カイコ幼虫における光受容.

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    日本農芸化学会関西支部 第472回講演会, 2011年12月, 日本語, 神戸(神戸大学農学部), 国内会議

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  • カイコ幼虫末梢組織における時計遺伝子発現リズム.

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