A5002491181- Marine Biology and Ecology Research
- Marine and coastal plant biology
- Mollusks and Parasites Studies
- Aquatic Invertebrate Ecology and Behavior
- Invertebrate Taxonomy and Ecology
- Parasite Biology and Host Interactions
- Animal Ecology and Behavior Studies
- Fish Ecology and Management Studies
- Environmental DNA in Biodiversity Studies
- Marine Bivalve and Aquaculture Studies
- Crystal Structures and Properties
- Species Distribution and Climate Change
- Chromosomal and Genetic Variations
- Forest Insect Ecology and Management
- Microbial Community Ecology and Physiology
- Nematode management and characterization studies
- Amphibian and Reptile Biology
- Insect and Arachnid Ecology and Behavior
- Freshwater macroinvertebrate diversity and ecology
- Protist diversity and phylogeny
- Polysaccharides and Plant Cell Walls
- Plant Molecular Biology Research
- Plant Reproductive Biology
- Forest Ecology and Biodiversity Studies
- Planarian Biology and Electrostimulation
University of Tsukuba
2022-2025
University of Shizuoka
2023-2025
Tohoku University
2018-2023
Kitasato University
2023
Rigaku (Japan)
2023
Toho University
2023
National Museum of Nature and Science
2020
Hirosaki University
1994
How symbionts acquired hosts and diversified phylogenetically during their evolutionary history is a focus of attention in many symbiotic taxa. Marine polyclad flatworms are usually free-living, but some symbiotic, using animals as hosts. However, the acquisition systems not well understood. Therefore, we focused on mollusc suborder Acotylea investigated host specificity phylogenetic symbiosis. Field surveys revealed that utilized certain molluscs In particular, Stylochoplana pusilla...
In this study, we clarify the classification of museum specimens family Viviparidae, which is composed six species/subspecies in Japan, including three endangered species. We examined Viviparus sclateri from Tomotaro Iwakawa collection (1855-1933) National Museum Nature and Science, Tokyo. The Iwakawa's was catalogued 1919 sclateri, labelled with Naga-tanishi, current Japanese name for H. longispira, was, at time, equivalent to listed catalogue. catalogue noted localities (Naga-tanishi)...
Abstract Positive interactions are known to play important roles in ecological divergence but have received less attention than negative studies on intertidal communities. Here, we show that growth of the mat‐forming green alga Pseudocladophora conchopheria shells a gastropod ( Lunella coreensis ) provides them with benefits for living rocky habitats. We found P. covered large proportion shell surface all L. inhabiting an exposed shore habitat, none or only small damp boulder habitat....
Host shifts represent the advancement of a novel niche and often lead to speciation in symbionts. However, its mechanisms are not well understood. Here, we focused on alga Pseudocladophora conchopheria growing shells intertidal snails. Previous surveys have shown that has host specificity—only attaching shell Lunella correensis—but discovered attaches multiple sympatric A genome-wide single-nucleotide polymorphism analysis (MIG-seq) was performed determine whether host-associated occurred...
Abstract Environmental factors promote symbiosis, but its mechanism is not yet well understood. The alga Pseudocladophora conchopheria grows only on the shell of an intertidal gastropod Lunella correensis , and these species have a close symbiotic relationship which reduces heat stress gastropod. In collaboration with general public, we investigated how environmental conditions alter interaction between Information about habitats each images shells was obtained from Japanese Korean coasts...
Freshwater mollusks often show high intraspecific variability in shell morphology, which may cause incongruences between molecular phylogeny and morphology-based species taxonomy. However, it remains unclear how morphological variations freshwater snails are associated with different habitats such as rivers, ponds, lakes. In the present study, we investigated variation shells of viviparid snail Sinotaia quadrata Kahoku Lagoon Japan, was converted from a brackish to lagoon 60 years ago. This...
Reliable identification of species is important for protecting native ecosystems against the invasion non-native species. DNA barcoding using molecular markers, such as mitochondrial cytochrome oxidase subunit 1 (COI) gene, helps researchers distinguish In this study, we focused on introduced veronicellid slugs in Ryukyu Islands and some greenhouses mainland Japan. Some veronicellids are medium-to-high risk pest humans. Identifying by their external morphology difficult unreliable because...
Abstract Knowing how the present distribution of organisms was formed is an essential issue in evolutionary ecology. Recently, on Earth has been significantly changed by human-mediated dispersal due to globalization. Therefore, significant attention paid such processes. However, although humankind taken considerable time achieve modernization, impact ancient human activity ecosystems not yet thoroughly studied. We hypothesized that urban development and transitions had a non-negligible...
Journal Article Purification and Characterization of an Endopolygalacturonase from Physalospora piricola Get access Kazuo Miyairi, Miyairi Department Bioresources Science, Faculty Agriculture, Hirosaki University, Hirosaki-shi, Aomori 036, Japan Search for other works by this author on: Oxford Academic Google Scholar Toshihide Matsue, Matsue Osamu Kagawa, Kagawa Tomohiro Kutsuzawa, Kutsuzawa Toshikatsu Okuno Bioscience, Biotechnology, Biochemistry, Volume 58, Issue 10, 1 January 1994, Pages...
We analyzed the mitochondrial DNA of
<title>Abstract</title> Accumulating information on the distribution of symbionts and their host species is important for studying how have diversified. <italic>Pseudocladophora conchopheria</italic> a green alga that grows shells specific intertidal gastropods distributed in Japanese archipelago, Ryukyu islands Southern part Korean Peninsula. We newly report southernmost record gastropod, <italic>Lunella granulata</italic> from Vietnam. Species identification gastropod was based...
Understanding alpine communities that form along elevation gradients is not only a major topic in community ecology but also provides biological conservation insights into recent environmental changes ecosystems. In this study, we investigated the composition and diversity of land snails on Yakushima Island, Japan, which has steep mountainous areas been designated World Natural Heritage Site. As result survey, 3,689 individuals 42 species were recorded at 64 sites, Bayesian hierarchical...