Gen Okada

ORCID: 0000-0001-5127-8035
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About
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Research Areas
  • Plant Pathogens and Fungal Diseases
  • Mycorrhizal Fungi and Plant Interactions
  • Yeasts and Rust Fungi Studies
  • Microbial Natural Products and Biosynthesis
  • Fungal Biology and Applications
  • Lichen and fungal ecology
  • Infectious Diseases and Mycology
  • Mycotoxins in Agriculture and Food
  • Plant Disease Resistance and Genetics
  • Plant Pathogens and Resistance
  • Cancer-related Molecular Pathways
  • Plant and fungal interactions
  • Cancer Treatment and Pharmacology
  • Enzyme Production and Characterization
  • Peptidase Inhibition and Analysis
  • Plant and Fungal Species Descriptions
  • Molecular Biology Techniques and Applications
  • Fungal Infections and Studies
  • Chemical Synthesis and Analysis
  • Chemical synthesis and alkaloids
  • Microbial Metabolism and Applications
  • Forest Ecology and Biodiversity Studies
  • Molecular Spectroscopy and Structure
  • Biochemical and Molecular Research
  • Marine Sponges and Natural Products

RIKEN BioResource Research Center
2005-2024

Tenri Health Care University
2013

RIKEN Center for Sustainable Resource Science
2011

RIKEN
1989-2007

Japan Institute of Leather Research
1989-2002

RIKEN Center for Brain Science
2001

Institute of Physical and Organic Chemistry
1995-1996

Osaka Dental University
1995

Osaka University
1995

Osaka International Cancer Institute
1993

Novel species of microfungi described in the present study include following from Australia: Bagadiella victoriae and koalae on Eucalyptus spp., Catenulostroma eucalyptorum laevopinea, Cercospora eremochloae Eremochloa bimaculata, Devriesia queenslandica Scaevola taccada, Diaporthe musigena Musa sp., acaciigena Acacia retinodes, Leptoxyphium kurandae Neofusicoccum grevilleae Grevillea aurea, Phytophthora fluvialis water native bushland, Pseudocercospora cyathicola Cyathea australis,...

10.3767/003158511x581723 article EN Persoonia - Molecular Phylogeny and Evolution of Fungi 2011-06-20

Based on nuclear encoded small subunit (18S) rDNA sequences, a taxonomic reappraisal of Graphium (anamorphic fungi) was undertaken using neighbour-joining (NJ) and fast DNA maximum likelihood (fastDNAml) methods compared with traditional classifications. In common putredinis, penicillioides (the lectotype species) found to be related the Microascales, not Ophiostomatales as previously believed. Both species might heterogenous should treated aggregates. The representative mode conidiogenesis...

10.1139/cjb-76-9-1495 article EN Canadian Journal of Botany 1998-01-01

was taxonomically revised based on the morphological observations and phylogenetic analyses of molecular data from nuclear rDNA SSU-ITS-LSU,

10.1016/j.simyco.2018.03.001 article EN cc-by-nc-nd Studies in Mycology 2018-03-08

Species of Encephalartos, commonly known as bread trees, palms or cycads are native to Africa; the genus encompasses more than 60 species and represents an important component indigenous African flora. Recently, a leaf blight disease was noted on several E. altensteinii plants growing at foot Table Mountain in Kirstenbosch Botanical Gardens South Africa. Preliminary isolations from dead dying leaves alten-steinii, lebomboensis princeps, collected Africa, revealed presence novel microfungi...

10.3767/003158508x380612 article EN Persoonia - Molecular Phylogeny and Evolution of Fungi 2008-10-24

Abstract Background: The Japanese Association of Medical Technologists (JAMT) sought to establish common reference intervals (RIs) applicable nationwide in Japan for 27 serum constituent analytes which certified materials are available and nine frequently measured routine tests. More than 100 laboratories metrological traceability collaborated the recruitment, sampling, measurement establishment RIs. No previous attempt has been made RIs by such a large number laboratories. allowable limits...

10.1515/cclm-2012-0413 article EN Clinical Chemistry and Laboratory Medicine (CCLM) 2013-04-02

Phoma glomerata strain JCM9972 controls clubroot of cruciferous crops caused by Plasmodiophora brassicae and the activity depends upon epoxydon (5-hydroxy-3-(hydroxymethyl)-7-oxabicyclo [4.1.0]hept-3-en-2-one) produced strain.

10.1002/(sici)1096-9063(199905)55:5<602::aid-ps964>3.0.co;2-c article EN Pesticide Science 1999-05-01

Based on nuclear encoded small subunit (18S) rDNA sequences, a taxonomic reappraisal of Graphium (anamorphic fungi) was undertaken using neighbour-joining (NJ) and fast DNA maximum likelihood (fastDNAml) methods compared with traditional classifications. In common putredinis, penicillioides (the lectotype species) found to be related the Microascales, not Ophiostomatales as previously believed. Both species might heterogenous should treated aggregates. The representative mode conidiogenesis...

10.1139/b98-089 article EN Canadian Journal of Botany 1998-09-01

A new genus Ballistosporomyces Nakase, Okada et Sugiyama in the Hyphomycetes is described for yeasts that reproduce by both non-ballistosporous conidia and ballistospores, but not budding yeast cells. Non-ballistosporous are produced on a sterigma-like stalk which proliferates sympodially or percurrently. Strains this have Q-10 as major isoprenologue of ubiquinone, do contain xylose cells, show positive Diazonium blue B reaction. Two species, xanthus (type species) B. ruber, genus. has G+C...

10.2323/jgam.35.289 article EN The Journal of General and Applied Microbiology 1989-01-01
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