A5051260006- Hymenoptera taxonomy and phylogeny
- Insect-Plant Interactions and Control
- Forest Insect Ecology and Management
- Plant and animal studies
- Quantum Chromodynamics and Particle Interactions
- Research on scale insects
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Lepidoptera: Biology and Taxonomy
- Insect and Pesticide Research
- Ecology and Vegetation Dynamics Studies
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Phytoplasmas and Hemiptera pathogens
- Insect and Arachnid Ecology and Behavior
- Nuclear physics research studies
- Plant Parasitism and Resistance
- Quantum, superfluid, helium dynamics
- Entomopathogenic Microorganisms in Pest Control
- Atomic and Subatomic Physics Research
- Advanced Control Systems Design
- Advanced Control Systems Optimization
- Fossil Insects in Amber
- Insect symbiosis and bacterial influences
- Plant Virus Research Studies
Saga University
2016-2025
Tokyo Institute of Technology
2013-2024
Kagoshima University
2016-2024
Institute of Agrobiological Sciences
2009-2024
Kumamoto University
2023-2024
Kyushu University
2003-2023
Tohoku University
2020-2022
Niigata University
2020
Chubu University
2020
Saitama University
2020
Summary A variety of insect species induce galls on host plants. Several studies have implicated phytohormones in insect‐induced gall formation. However, it has not been determined whether insects can synthesize phytohormones. It also never established that function tissues. Liquid chromatography and tandem mass spectrometry ( LC / MS ) were used to analyse concentrations endogenous cytokinins the active auxin IAA gall‐inducing sawfly Pontania sp.) its plant, Salix japonica . Feeding...
We describe a gall midge Macarangamyia itiokai Elsayed & Tokuda gen. n., sp. n. belonging to the subtribe Schizomyiina (Diptera: Cecidomyiidae: Asphondyliini) inducing petiole galls on Macaranga bancana (Miq.) in Lambir Hills National Park, Borneo, Malaysia. The new genus is distinguishable from all known genera of by unique dorsally-placed aedeagus slit, short, membranous, protrusible ovipositor, with scattered strong setae ventrally and dorsally, presence spiracles larval thoracic...
We observed a distinct peak in the Λp invariant mass spectrum of He3(K−,Λp)n, well below mK+2mp, i.e., threshold K− to be bound two protons. By selecting relatively large momentum-transfer region q=350∼650 MeV/c, one can kinematically separate from quasi-free process, K‾N→K‾N followed by non-resonant absorption spectator-nucleons K‾NN→ΛN. found that simplest fit gives us Breit–Wigner pole position at BKpp=47±3(stat.)−6+3(sys.) MeV having width ΓKpp=115±7(stat.)−20+10(sys.) MeV, and S-wave...
Two new species of Schizomyia Kieffer (Diptera: Cecidomyiidae: Asphondyliini: Schizomyiina) are reported from Japan. broussonetiae Elsayed & Tokuda n. sp. forms hairy globular leaf galls on the paper mulberry Broussonetia papyrifera (L.) Vent. (Moraceae) and S. uechiae induces red flower bud porcelain berry Ampelopsis glandulosa var. brevipedunculata (Maxim.) Momiy. (Vitaceae). Morphological features larvae, pupae adults described, illustrated compared in detail to several other species....
Ametrodiplosis Rübsaamen (Diptera: Cecidomyiidae: Clinodiplosini) is a mostly Holarctic gall midge genus whose species are associated with wide range of seed plant families, either as gall-inducers or inquilines. In this study, we describe three from Japan: A. adetos n. sp. feeding in the flowers Tylophora aristolochioides Miq. (Apocynaceae); aeroradicis inducing aerial root galls on Trachelospermum asiaticum (Sieb. et Zucc.) Nakai and T. gracilipes var. liukiuense stellariae forming leaf...
Abstract Some herbivorous insects possess the ability to synthesize phytohormones and are considered use them for manipulating their host plants, but how these acquired remains unclear. We investigated endogenous levels of auxin (IAA) cytokinins (iP t Z), including ribosides (iPR ZR), in various terrestrial arthropod taxa. Surprisingly, IAA was detected all arthropods analysed. In contrast, Z and/or ZR only some Endogenous were not significantly different among groups with feeding habits,...
The maize orange leafhopper Cicadulina bipunctata (Hemiptera: Cicadellidae) induces galls characterized by growth stunting and severe swelling of leaf veins on various plants Poaceae. Previous studies revealed that are induced not feeding site but distant, newly extended leaves during the feeding, strongly suggested some chemicals injected affect at primordia. To approach mechanism underlying gall induction C. bipunctata, we examined physiological response to leafhopper. We performed...
Abstract The family C ecidomyiidae ( D iptera) including about 6100 described species displays diverse feeding habits. tribe A sphondyliini is a well‐circumscribed monophyletic group of and all are known as gall inducers. Species belonging to this exhibit fascinating ecological traits such host alternation, polyphagy, extended diapause, induction dimorphic galls association with fungal symbionts. For these reasons, biogeographical phylogenetic studies interest in elucidating the evolution...
A gall midge species (Diptera: Cecidomyiidae) inducing leaf bud galls on Magnolia kobus DC. var. borealis Sarg. (Magnoliaceae) was found in Hokkaido and northern Honshu, Japan.Based its morphology, the is regarded as an undescribed of genus Pseudasphondylia Monzen (Cecidomyiinae, Cecidomyiidi, Asphondyliini). The herein described saohimea Matsuda, Elsayed Tokuda sp. n. new easily distinguishable from congeners by number adult palpal segments shape male terminalia larval spatula.
To search for an |${\rm S} = -1$| di-baryonic state which decays to |$\Lambda p$|, the |${}^3{\rm He}(K^-,\Lambda p)n_{\rm missing}$| reaction was studied at 1.0 GeV}/c$|. Unobserved neutrons were kinematically identified from missing mass |$M_{X}$| of p)X$| in order have a large acceptance pn$| final state. The observed events, distributed widely over allowed region Dalitz plot, establish that major component comes three-nucleon absorption process. A concentration events specific neutron...
The genus Asteralobia (Diptera, Cecidomyiidae, Asphondyliini, Schizomyiina) was erected by Kovalev (1964) based on the presence of constrictions cylindrical male flagellomeres. In present study, we examine morphological features and Schizomyia found that flagellomeres are constricted also in Schizomyiagaliorum, type species Schizomyia. Because no further characters clearly separating from were observed, synonymize under Molecular phylogenetic analysis strongly supports our taxonomic...
We have performed an exclusive measurement of the K−+He3→Λpn reaction at incident kaon momentum 1GeV/c. In Λp invariant mass spectrum, a clear peak was observed below threshold K¯+N+N, as signal kaonic nuclear bound state, K¯NN. The binding energy, decay width, and S-wave Gaussian form factor this state were to be BK=42±3(stat.)−4+3(syst.)MeV, ΓK=100±7(stat.)−9+19(syst.)MeV, QK=383±11(stat.)−1+4(syst.)MeV/c, respectively. total production cross section K¯NN, determined by its mode,...
The cytochrome oxidase subunit I gene in mitochondrial DNA of 53 larvae Contarinia maculipennis Felt from flower buds various host plants, collected Hawaii, Japan and Thailand was analysed. Monophyly the clade including C. supported. There no sequential variation within specimens Hawaii Japan, which differed one another by 6 bp (1.37%). Three haplotypes were recognized but differences Hawaiian Japanese small. Overall, there 146 deduced amino acid residues. It is therefore concluded that a...
Five new species of the genus Daphnephila (Diptera: Cecidomyiidae: Asphondyliini), D. ornithocephala, stenocalia, sueyenae, taiwanensis, and truncicola, all associated with Machilus thunbergii (Lauraceae), are described from Taiwan, one previously known species, machilicola, is redescribed Japan. Among five truncicola induces stem galls other four induce leaf galls. A molecular phylogenetic analysis based on partial sequences mitochondrial cytochrome oxidase subunit I (COI) gene suggests...
An experiment to search for the $K^-pp$ bound state was performed via in-flight $^3$He($K^-,n)$ reaction using 5.3 $\times$ $10^9$ kaons at 1 GeV/$c$ J-PARC hadron experimental facility. In semi-inclusive neutron missing-mass spectrum $\theta_{n}^{lab}=0^\circ$, no significant peak observed in region corresponding binding energy larger than 80 MeV, where a bump structure has been reported $\Lambda p$ final different reactions. Assuming be isotropically decaying into p$, mass-dependent upper...
Inter- and intraspecific differences between Asteralobia gall midges (Diptera: Cecidomyiidae) that induce axillary bud galls on several Ilex species were studied from morphological, molecular, ecological points of view. sasakii (Monzen) soyogo (Kikuti) clearly distinguished one another by thoracic setal scale counts sequences partial mitochondrial DNA cytochrome oxidase subunit I region. Because adults A. emerged within a shorter period time later in the season than those soyogo, they...
Based on literature surveys and morphological DNA sequencing data, we examined patterns of host association at the generic level for Japanese gall midges. Many examples a midge genus with particular plant are known. We found that associations exist between Rabdophaga Salix, Hartigiola Fagus, Rhopalomyia Artemisia, Daphnephila Machilus, whereas range some large genera, such as Asphondylia, Contarinia, Dasineura, Lasioptera spans different families. Most species seem to have colonized...
Phylogenetic relationships among migratory locust (Locusta migratoria) populations in different climatic regions were analysed by sequencing four mitochondrial DNA regions, with special reference to the origin of Japanese populations. The are clearly separated into two clades: one consists individuals from temperate and cold-temperate areas Japan Chinese continent, other comprises those subtropical islands Japan, Hainan Island China, Timol Leste, Australia, Ethiopia, France, some Tsushima...
Three beam lines for secondary charged particles are constructed in the hadron experimental hall of J-PARC. The K1.8 line, which incorporates two separators, delivers clean beams kaons up to 2 GeV/c. K1.8BR line is a branch K1.8, low-momentum 1.2 K1.1BR shorter designed kaons. Details these designs, as well commissioning results, described.
Many parasitic organisms have an ability to manipulate their hosts increase own fitness. In parasitoids, behavioral changes of mobile avoid or protect against predation and hyperparasitism been intensively studied, but host manipulation by parasitoids associated with endophytic immobile has seldom investigated. We examined the interactions between a gall inducer Masakimyia pustulae (Diptera: Cecidomyiidae) its parasitoids. This midge induces dimorphic leaf galls, thick thin types, on...
We measured a set of $\pi^\pm\Sigma^\mp$, $\pi^0\Sigma^0$, and $\pi^-\Sigma^0$ invariant mass spectra below above the $\bar{K}N$ threshold in $K^-$-induced reactions on deuteron. deduced $S$-wave $\bar{K}N\rightarrow\pi\Sigma$ $\bar{K}N\rightarrow\bar{K}N$ scattering amplitudes isospin 0 channel framework $\pi\Sigma$ coupled channel. find that resonance pole corresponding to $\Lambda(1405)$ is located at 1417.7$^{+6.0}_{-7.4}$(fitting errors)$^{+1.1}_{-1.0}$(systematic errors) +...