Takamichi Orihara

ORCID: 0000-0002-0409-7810
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Research Areas
  • Mycorrhizal Fungi and Plant Interactions
  • Plant Pathogens and Fungal Diseases
  • Lichen and fungal ecology
  • Fungal Biology and Applications
  • Plant and Fungal Species Descriptions
  • Plant Diversity and Evolution
  • Entomopathogenic Microorganisms in Pest Control
  • Plant and animal studies
  • Bat Biology and Ecology Studies
  • Ecology and Vegetation Dynamics Studies
  • Fern and Epiphyte Biology
  • Plant Pathogens and Resistance
  • Insect Pest Control Strategies
  • Forest Insect Ecology and Management
  • Yeasts and Rust Fungi Studies
  • Nematode management and characterization studies
  • Evolution and Paleontology Studies
  • Geology and Paleoclimatology Research
  • Garlic and Onion Studies
  • Botanical Research and Chemistry
  • Insect Resistance and Genetics
  • Plant Parasitism and Resistance

Kanagawa Prefectural Museum of Natural History
2011-2024

American Museum of Natural History
2012

Tottori University
2010-2011

Kyoto Prefectural University
2006

Abstract The Basidiomycota constitutes a major phylum of the kingdom Fungi and is second in species numbers to Ascomycota. present work provides an overview all validly published, currently used basidiomycete genera date single document. An outline provided, which includes 1928 names, with 1263 synonyms, are distributed 241 families, 68 orders, 18 classes four subphyla. We provide brief notes for each accepted genus including information on classification, number species, type life mode,...

10.1007/s13225-019-00435-4 article EN cc-by Fungal Diversity 2019-11-01

10.1007/s13225-024-00535-w article EN Fungal Diversity 2024-07-09

• We investigated the fungal symbionts and carbon nutrition of a Japanese forest photosynthetic orchid, Platanthera minor, whose ecology suggests mixotrophic syndrome, that is, mycorrhizal association with ectomycorrhiza (ECM)-forming fungi partial exploitation carbon. performed molecular identification by PCR amplifications ribosomal DNA on hyphal coils extracted from P. minor roots. tested for 13C 15N enrichment characteristic plants. also ectomycorrhizal abilities orchid using new...

10.1111/j.1469-8137.2011.03896.x article EN New Phytologist 2011-10-13

Exobasidium setsutaiense sp. nov. is proposed to accommodate the causal agent of leaf blister on Rhododendron semibarbatum. After examination herbarium materials (IUM) and newly collected fresh materials, symptom R. semibarbatum was clearly different from those arboreum, host butleri. Morphology basidiospores slightly curved towards a hilum with 3–4 septa, whereas number septa in E. butleri 0–1. The mode germination by germ tube or budding. characterized chlorotic spot where lesion thickened...

10.11646/phytotaxa.684.1.4 article EN Phytotaxa 2025-02-04

The sequestrate fungi of Japan, including truffle and truffle-like fungi, have not been well characterized but are potentially diverse. We investigated the diversity phylogeny Japanese Octaviania specimens using a multifaceted approach scanning transmission electron microscopy as analysis nuclear ribosomal DNA (ITS LSU) EF-1α (tef1) sequences. Phylogenetic analyses indicate that genus is divided into three major clades, there at least 12 species-level lineages in Japan. Accordingly, we...

10.3767/003158512x650121 article EN Persoonia - Molecular Phylogeny and Evolution of Fungi 2012-05-21

During taxonomic revision of genus Octaviania in Japan we examined herbarium and fresh specimens O. columellifera asterosperma sensu S. Yoshimi & Y. Doi with morphological molecular techniques. These two species were identical both macro- micromorphological characters clearly different from the generally known asterosperma. The identity their distinctness was further supported by nuclear large subunit ITS rDNA phylogeny. analyses also revealed that shares its lineage boletoid...

10.3852/08-168 article EN Mycologia 2010-01-01

The sequestrate (truffle-like) basidiomycete Octaviania ivoryana was originally described based on collections from Zimbabwe, Kenya, Guinea, and Senegal. This species has basidiomes that stain blue-green basidiospores with crowded spines are characteristic of the genus Octaviania. However, O. is only sub-Saharan Africa, phylogenetic relationship to other sensu stricto not been previously investigated. We examined position isotype paratype specimens two nuc rDNA loci—ITS1-5.8S-ITS2 (internal...

10.1080/00275514.2017.1301750 article EN Mycologia 2017-03-04

A new monotypic sequestrate genus, Longistriata is described based on collections from the Neotropical forest of Atlantic in Paraíba, Northeast Brazil - an area known for its high degree endemism. The striking features this fungus are hypogeous habit, vivid yellow peridium mature basidiomes, broadly ellipsoid basidiospores with a distinct wall that ornamented longitudinal striations and lageniform cystidia rounded apices. Phylogenetic analysis, LSU tef-1α regions, showed type species, flava,...

10.3897/mycokeys.62.39699 article EN cc-by MycoKeys 2020-01-28

A new sequestrate (truffle-like) species, Rossbeevera yunnanensis, is described based on a collection from Chuxiong Prefecture, Yunnan Province, China. The species morphologically characterized by its large, narrow, fusoid to fusiform basidiospores and remarkably thin peridium. Maximum likelihood neighbor joining phylogenies of our nLSU rDNA dataset indicate that the constitutes earliest diverging lineage within genus has close phylogenetic relationship Leccinellum. Morphological...

10.5248/120.139 article EN cc-by-nc-nd Mycotaxon 2012-09-28

ABSTRACT Among many convergently evolved sequestrate fungal genera in Boletaceae ( Boletales , Basidiomycota ), the genus Octaviania is most diverse. We recently collected specimens of subg. Octaviania, including several undescribed taxa, from Japan and Americas. Here we describe two new species subgenus O. tenuipes tomentosa temperate to subtropical evergreen Fagaceae forests based on morphological observation robust multilocus phylogenetic analyses (nrDNA ITS partial large subunit [LSU],...

10.1186/s43008-021-00066-y article EN cc-by IMA Fungus 2021-06-11

The type of Rossbeeverabispora and additional collections from the location adjacent areas were studied. Molecular data for R.bispora derived new are provided. In addition, R.griseobrunnea, a species Rossbeevera, is described Xiangtoushan National Nature Reserve, Guangdong Province China. characterized by its globose to subglobose sequestrate basidiomata with grayish white brown pileus, pale bluish discoloration in some parts hymenophore when injured becoming rusty dark after being exposed...

10.3897/mycokeys.51.32775 article EN cc-by MycoKeys 2019-04-15

Abstract A nearly complete dentary with preserved i2, p3 and m1 of a relatively large soricomorph from the Dota locality, Kani Basin, Early Miocene (ca. 18.5 Ma), Nakamura Formation Mizunami Group in central Japan, is described as new species Plesiosorex . It represents first record genus East Asia. fejfari sp. nov. has slender dentary, posteriorly elongated angular condyloid processes, two roots, without hypoconulid or cingulid. Cladistic analysis Butselia gracilis seven shows that basally...

10.2478/if-2017-0016 article EN Fossil Imprint 2017-12-01

We describe two new Japanese truffle species, Tuber iryudaense and tomentosum, based on molecular morphological analyses. Both species are clearly distinguishable from other by the ocher tomentose mycelium covering ascoma surfaces. has one-spored asci that each contain a large (68-97 × 51-80 µm), reddish-brown ascospore; these microscopic characters similar to those of closely related Chinese T. calosporum, gigantosporum, glabrum, monosporum, sinomonosporum. tomentosum forms one four...

10.1080/00275514.2021.1875709 article EN Mycologia 2021-04-09
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