Takeshi Kashiwa

ORCID: 0000-0002-4534-6721
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About
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Research Areas
  • Plant Pathogens and Fungal Diseases
  • Plant-Microbe Interactions and Immunity
  • Mycotoxins in Agriculture and Food
  • Mycorrhizal Fungi and Plant Interactions
  • Plant Disease Resistance and Genetics
  • Yeasts and Rust Fungi Studies
  • Plant Pathogens and Resistance
  • Ubiquitin and proteasome pathways
  • Entomopathogenic Microorganisms in Pest Control
  • Nematode management and characterization studies
  • Genomics and Phylogenetic Studies
  • Insect symbiosis and bacterial influences
  • Biosensors and Analytical Detection
  • Fungal Biology and Applications
  • Marine Sponges and Natural Products
  • Microbial Natural Products and Biosynthesis
  • Fungal and yeast genetics research

RIKEN Center for Sustainable Resource Science
2016-2023

Tokyo University of Agriculture and Technology
2013-2021

ORCID
2021

Japan International Research Center for Agricultural Sciences
2020-2021

Fusarium oxysporum is an ascomycetous fungus that well-known as a soilborne plant pathogen. In addition, large population of nonpathogenic F. (NPF) inhabits various environmental niches, including the phytosphere. To obtain insight into origin pathogenic oxysporum, we focused on tomato (Solanum lycopersicum) and its f. sp. lycopersici (FOL). We collected from wild transition Solanum spp. modern cultivars in Chile, Ecuador, Peru, Mexico, Afghanistan, Italy, Japan, evaluated fungal isolates...

10.1264/jsme2.me13184 article EN Microbes and Environments 2014-01-01

Fusarium oxysporum f. sp. lycopersici (Fol) causes tomato wilt. Based on the difference in pathogenicity towards cultivars, Fol is classified into three races. In this study, a rapid method developed for detection and discrimination of race 1 using loop-mediated isothermal amplification (LAMP) assay with two primer sets targeting region nucleotide sequence SIX4 gene specific set SIX5 gene, conserved all known isolates. Upon LAMP reaction, was observed only when DNA used as template, not...

10.1111/lam.12597 article EN Letters in Applied Microbiology 2016-06-01

Emergence of races in Fusarium oxysporum f. sp. lycopersici (Fol) is caused by loss or mutation at least one avirulence (AVR) gene. The product AVR1 a small protein (Avr1) secreted Fol tomato xylem sap during infection. This triggers race 1 specific resistance (I) tomato, indicating that an AVR Deletion resulted the emergence 2, and additional AVR2 generated 3. Previously, we reported new biotype 3, KoChi-1, which was truncated transposon Hormin, suggested route to evolution However, date no...

10.1093/femsle/fnw132 article EN FEMS Microbiology Letters 2016-05-17

Abstract Asian soybean rust caused by the fungal pathogen Phakopsora pachyrhizi is most devastating disease of soybean. The host cultivar specificity shows considerable differentiation depending on area and season its emergence. Although resistance genes for P. ( Rpp ) have been reported in several varieties, genetic background these varieties highly differentiated. Furthermore, some harbor unknown factors addition to that could influence reactions against pathogen. In order gain a...

10.1038/s41598-020-70188-7 article EN cc-by Scientific Reports 2020-08-06

Proteasome inhibitors with γ-lactam structure, such as lactacystin and salinosporamide A, have been isolated from actinomycetes attracted attention lead compounds for anticancer drugs. Previously, we identified a unique enzyme TAS1, which is the first reported fungal NRPS-PKS hybrid enzyme, filamentous fungus Pyricularia oryzae biosynthesis of mycotoxin tenuazonic acid, tetramic acid compound without structure. Homologues TAS1 in several genomes classified into four groups (A-D). Here, show...

10.1021/acschembio.2c00830 article EN ACS Chemical Biology 2023-01-24

Cercospora leaf blight (CLB) causes extensive losses in soybean production worldwide, including major soybean-producing countries such as Argentina. kikuchii, C. cf. sigesbeckiae, flagellaris, and nicotianae are identified pathogens of CLB. Soybean resistance against CLB is still unknown. Also, chemical control for losing effectiveness because fungicide kikuchii. We urgently need to breed a CLB-resistant cultivar. Unfortunately, efficient methods the screening resistant genotype have not yet...

10.1094/phytofr-01-21-0002-ta article EN cc-by-nc-nd PhytoFrontiers™ 2021-03-15

Abstract Plant diseases caused by the Cercospora genus of ascomycete fungi are a major concern for commercial agricultural practices. Several species can affect soybeans, such as kikuchii which causes soybean leaf blight. Speciation in on has not been adequately studied. Some cryptic groups also cause soybean. Moreover, it known C. population genetic structure is different between countries. Consequently, further genomic information could help to elucidate covert differentiation Here, we...

10.1093/g3journal/jkab277 article EN cc-by G3 Genes Genomes Genetics 2021-08-05

ABSTRACT Tenuazonic acid (TeA) is a toxin produced by the rice blast fungus Pyricularia oryzae. Although knockout of TeA biosynthetic gene TAS1 did not affect virulence P. oryzae, constitutive expression suppressed its infection. was induced alongside transition oryzae infection behavior. The results suggested that controlling biosynthesis important for

10.1093/bbb/zbab195 article EN Bioscience Biotechnology and Biochemistry 2021-11-10
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