Yoshikuni Hodoki

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Carex scabrifolia, a perennial herb that commonly grows on sandbars in lagoons and tidal estuaries, is threatened by habitat reduction in some areas of Japan. Clonal diversity and the extent of gene flow among ten populations located along the Seto Inland Sea and the Japan Sea in western Japan were examined using six microsatellite loci. From 299 samples,(More)
We estimated the grazing impact of the heterotrophic flagellate Collodictyon triciliatum on the harmful, bloom-forming cyanobacterium Microcystis aeruginosa in an experimental pond during a Microcystis bloom from summer to winter in 2010. For these experiments, we calculated the grazing rates from the digestion rate of C. triciliatum and its food vacuole(More)
Kinetoplastid flagellates, microscopically often detected from various aquatic environments and considered ubiquitous are seldom reported in molecular diversity studies with universal eukaryote DNA primers. To investigate this inconsistency, we examined nanoflagellate diversity in Lake Biwa, Japan by 18S rRNA gene clone libraries using universal eukaryote(More)
Single-cell PCR and gene sequencing were conducted to evaluate species and genotypic compositions of Cryptomonas in the eutrophic Lake Hira, Japan. We determined the sequences of nuclear internal transcribed spacer 2 region from single Cryptomonas cells with a high success rate (83.3–97.9 %), excluding one case (56.3 %). A total of 325 sequences were(More)
As human alterations such as riverbed excavation and harbor improvements have diminished natural littoral regions and estuarine basins, the numbers of organisms living in tidal marsh have declined. The tidal marsh halophyte Carex rugulosa has been commonly observed along the Japanese coastline over the past centuries; however, this species has recently been(More)
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