A5085952930- Plant and animal studies
- Plant Parasitism and Resistance
- Ecology and Vegetation Dynamics Studies
- Plant and Fungal Species Descriptions
- Insect and Arachnid Ecology and Behavior
- Microbial Metabolism and Applications
- Fermentation and Sensory Analysis
- Essential Oils and Antimicrobial Activity
- Mycorrhizal Fungi and Plant Interactions
- Insect and Pesticide Research
- Bee Products Chemical Analysis
- Insect-Plant Interactions and Control
- Microbial Natural Products and Biosynthesis
- Genomics and Phylogenetic Studies
- Epigenetics and DNA Methylation
- Biochemical and biochemical processes
- Actinomycetales infections and treatment
- Forest Insect Ecology and Management
- Weed Control and Herbicide Applications
- Phytochemicals and Antioxidant Activities
- Analytical chemistry methods development
- Animal and Plant Science Education
- Biological and pharmacological studies of plants
- Insect symbiosis and bacterial influences
- Species Distribution and Climate Change
Kobe University
1988-2024
Kyoto University
2010-2024
Stanford University
2015-2024
Centre for Ecological Research
2016
National Institute of Technology and Evaluation
2011
Toyobo (Japan)
2007
Abstract Intraspecific trait variation is receiving renewed interest as a factor affecting the structure of multi‐species communities within and across trophic levels. One pervasive form intraspecific sexual dimorphism in animals plants, which might exert large effects particularly on host‐associated organisms, but extent these not well understood. We investigated whether microbial developed differently floral nectar female male individuals dioecious shrubs, Eurya emarginata E. japonica ....
A detailed evaluation of eight bacterial isolates from floral nectar and animal visitors to flowers shows evidence that they represent three novel species in the genus Acinetobacter . Phylogenomic analysis closest relatives these new are apis , boissieri nectaris previously described associated with bees, but high genome-wide sequence divergence defines as species. Pairwise comparisons average nucleotide identity compared known is extremely low (<83 %), thus confirming samples...
Abstract Species often interact indirectly with each other via their traits. There is increasing appreciation of trait‐mediated indirect effects linking multiple interactions. Flowers both pollinators and floral herbivores, the flower‐pollinator interaction may be modified by herbivores (i.e., florivores) on flower traits such as size attracting pollinators. To explore whether affects interaction, we used Eurya japonica flowers. We examined artificial florivory decreased fruit seed...
Male-biased florivory is a prominent phenomenon in the interaction between plants and florivores, potentially related to evolution of flower traits sex expression; however, its adaptive significance not well understood. We studied geometrid moth Chloroclystis excisa utilizing buds sexually polymorphic shrub, Eurya japonica, reveal relationships oviposition preference, larval performance, plant phenolics composition. In field, C. exploited on male hermaphrodite trees but never those female...
The genus Rosenbergiella is one of the most frequent bacterial inhabitants flowers and a usual member insect microbiota worldwide. To date, there only publicly available genome, corresponding to type strain nectarea (8N4T), which precludes detailed analysis intra-genus phylogenetic relationships. In this study, we obtained draft genomes strains other species validly published date (R. australiborealis, R. collisarenosi epipactidis) 23 additional isolates flower origin. Isolate S61T,...
Abstract Research in community ecology has tended to focus on trophic interactions (e.g., predation, resource competition) as driving forces of dynamics, and sexual have often been overlooked. Here we discuss how can affect especially focusing frequency‐dependent dynamics horizontal communities (i.e., competing species a single ecological guild). By combining mechanistic phenomenological models competition, place reproduction into the framework modern coexistence theory. First, review...
Abstract Florivory, or damage to flowers by herbivores, can make less attractive pollinators, potentially resulting in reduced plant fitness. However, not many studies have combined observations with experiments assess the causal link between florivory and pollination. We conducted field at eight sites northern California, that involved artificial floral damage, study effect of on pollination hummingbird-pollinated sticky monkeyflower, Mimulus aurantiacus . used two indicators pollinator...
Abstract The floral nectar of angiosperms harbors a variety microorganisms that depend predominantly on animal visitors for their dispersal. Although some members the genus Acinetobacter and all currently known species Rosenbergiella are thought to be adapted thrive in nectar, there is limited information about response these bacteria variation chemical characteristics nectar. We investigated growth performance diverse collection ( n = 43) 45) isolates obtained from digestive tract...
Abstract The liquid–liquid extraction of various metal ions, especially soft class b ions with a thiacrown compound, 1,4,7,10,13,16-hexathiacyclooctadecane (HTCO) using picrate ion (Pic−) was examined and compared that 1,4,8,11-tetrathiacyclotetradecane (TTCT). Although the behavior a, ab, metals HTCO is fundamentally similar to TTCT, some belonging different from TTCT. percentages copper(II) palladium(II) are few times larger than those Copper(I) silver(I) extracted as 1 : complexes such...
Abstract We detected the pollinators of two endangered orchid species, Cymbidium kanran and goeringii , in their natural habitats. blooms early winter fragrant nectarless flowers were exclusively visited pollinated by workers Japanese honeybee ( Apis cerana japonica ). The pollination system seems deceptive contrasts with drone observed floribundum . spring, faintly fragrant, males Anthophora plumipes villosula suggesting that labellar papillae may be a reward for bees.
Abstract Sexual dimorphism is a pervasive form of variation within species. Understanding how and why sexual evolves would contribute to elucidating the mechanisms underlying diversification traits. In flowering plants, pollinators are considered driver when they affect female male plant fitness in distinct ways. Here, we found that flowers appear manipulate behavior using sexually dimorphic traits dioecious tree Eurya japonica . this plant, present higher-quality reward for pollinators,...
Abstract Flowers of dioecious plants have sexually dimorphic traits that may affect florivore performances, and florivores preferences to plant sex are correlated with their performance on different sexes. We investigated the florivory a polygamodioecious evergreen shrub E urya japonica in J apan reveal feeding patterns involved biased . flowers. were infested by lepidopteran dipteran larvae hemipteran insects. Lepidopteran chewers, gall makers insects suckers. Chewed flowers most frequent...
An increasing number of recent studies show that nectar-inhabiting microorganisms influence plant fitness by mediating interactions between plants and pollinators. However, whether the effects nectar microbes extend beyond pollination to affect subsequent stages reproduction remains largely unknown. This study aims explore can indirectly fruit consumption birds, which be essential for seed dispersal germination. Wild flowers Eurya japonica trees were experimentally inoculated with yeast...
The chemical compositions of essential oils from the flower and aerial parts (i.e., leaf branch) Eurya japonica were determined quantified using gas chromatography-mass spectrometry (GC-MS). A total 87 50 compounds detected in parts, respectively. main oil linalool (14.0%), (9Z)-tricosene (12.0%), nonanal (7.4%). In (37.7%), α-terpineol (13.5%), geraniol (9.6%) detected. 13 8 aroma-active identified by GC-olfactometry (GC-O) analysis, key heptanal [fatty, green, flavor dilution (FD) = 128,...
Abstract Bacteria in the honeybee gut have garnered much attention as a factor affecting bee health. However, unlike hindgut, which has been primary focus of this research, crop, or honey stomach, is often assumed to be dominated by environmentally acquired transient taxa that matter little bees. To evaluate assumption, we examined bacterial crop and mouth foraging adults Apis mellifera A. cerana japonica floral nectar Japanese apricot, Prunus mume , visited bees Minabe-Tanabe region Japan....
Abstract The nonphotosynthetic orchid Gastrodia elata Blume (Orchidaceae) is a mycoheterotroph associated with the wood-decomposing fungus Armillaria mellea. Here, we report symbiotic and parasitic associations of some insects this orchid. flowers are nectarless were visited by females halictid bee, Lasioglossum sp. bees entered tubular flower collected tissue from orchid’s labellum. Pollinia attached to hind thorax bee transported stigma receptive flowers. stems corms infested two rare...
Summary M azus pumilus is an annual self‐pollinating weed that commonly found in arable land, vegetable gardens and roadsides. This harbours insects pathogens attack vegetables. The mechanism of resistance to paraquat . O hita, J apan, was studied. Whole plant bioassays revealed the resistant (R) biotypes were four six times less susceptible than controls. Chlorophyll destruction leaf discs by treatment R 4–20 lower those (S) biotypes. Ferric reducing antioxidant power ( FRAP ) values higher...
This study was conducted to determine the composition of essential oil from buds male and female Eurya japonica flowers aroma-active compounds this plant by gas chromatography-mass spectrometry (GC-MS), sensory evaluation, odor activity values (OAV). The oils contained eighty-five compounds. We identified for first time forty-four in E. japonica. Through nineteen were chromatography-olfactometry (GC-O). Because chemical can affect interaction between plants herbivorous insects, our results...
Abstract Several dioecious plant species exhibit sexual dimorphisms in defensive traits. However, the effects of dimorphism on defense against herbivores remain poorly understood. Eurya japonica (Thunb.) (Theaceae) is a shrub that shows chemical flower buds. Female calyces contain higher concentrations total phenolics and condensed tannins than do male calyces. Male buds are edible for florivore moth, Chloroclystis excisa (Butler) (Lepidoptera: Geometridae), whereas female lethal to moth...
Methylation at position 5 of cytosine in DNA plays a major role epigenetic gene control. The methylation analysis can be performed by bisulfite genomic sequencing. Conventional procedures this include treatment single stranded with 3–5 M sodium pH and 50–55° for 4–20 hr. This will convert into uracil, while 5-methylcytosine resists deamination. Amplification PCR the bisulfite-treated followed sequencing reveals positions gene. We reported recently that whole procedure speeded up use highly...