Yoshiharu Fujii

ORCID: 0000-0002-5412-395X
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Allelopathy and phytotoxic interactions
  • Weed Control and Herbicide Applications
  • Plant Parasitism and Resistance
  • Plant tissue culture and regeneration
  • Seed Germination and Physiology
  • Chemical synthesis and alkaloids
  • Agronomic Practices and Intercropping Systems
  • Essential Oils and Antimicrobial Activity
  • Plant Physiology and Cultivation Studies
  • Plant Pathogens and Fungal Diseases
  • Plant and animal studies
  • Phytochemistry and Biological Activities
  • Plant-Microbe Interactions and Immunity
  • Insect Pest Control Strategies
  • Pesticide and Herbicide Environmental Studies
  • Plant Molecular Biology Research
  • Seed and Plant Biochemistry
  • Plant Growth Enhancement Techniques
  • Cholinesterase and Neurodegenerative Diseases
  • Lichen and fungal ecology
  • Plant Stress Responses and Tolerance
  • Botany and Plant Ecology Studies
  • Plant Reproductive Biology
  • Plant and fungal interactions
  • Nematode management and characterization studies

Tokyo University of Agriculture and Technology
2015-2024

National Institute for Agro-Environmental Sciences
2007-2020

Graduate School USA
2020

The University of Tokyo
2019

National Agriculture and Food Research Organization
2011

Kohat University of Science and Technology
2010

Tokyo University of Agriculture
2007

IBM Research - Tokyo
2001

Agricultural Research Service
2000

Institute of Livestock and Grassland Science
1997

Background: The in-depth traditional knowledge of medicinal plants is at risk extinction due to the dependency on oral transmission, and as such, there an urgent need document such knowledge. This study aimed indigenous uses among community members in Ejisu-Juaben Municipality. Methods: Data was collected 2016 from local herbalists Municipality through a semi-structured questionnaire. Statistical tools ethnobotanical indices, i.e., informant consensus factor (ICF), fidelity level (FL), use...

10.3390/medicines6010001 article EN cc-by Medicines 2018-12-20

The various organs of the Polish cultivars buckwheat were evaluated for their flavonoid content (rutin, quercetin, (+)‐catechin, and (−)‐epicatechin) phenolic acid (chlorogenic, caffeic, ferulic, gallic acids) to test contribution allelopathic activity. main compound found in above‐ground was rutin, followed by chlorogenic acid, then (−)‐epicatechin. activity, based on specific activity identified compounds lettuce seedling growth, evaluated. Gallic had highest quercetin lowest. rutin at...

10.1111/j.1445-6664.2007.00252.x article EN Weed Biology and Management 2007-08-20

In order to elucidate the allelopathic effect of leaf litter leachates under laboratory conditions, a modified ‘sandwich method’, which places leaves between two layers agar, was used. Fifty mg used per 10 cm 2 cell. Agar concentrations at 0.5–1.0% were best for gel support in determining radicle and hypocotyl elongation lettuce. The optimum incubation time bioassay three days after imbibition onset. Among 20 typical tree species Asia, Cymbopogon citratus Derris scandens showed strongest...

10.1111/j.1445-6664.2003.00113.x article EN Weed Biology and Management 2004-02-12

Laboratory and field experiments were conducted to assess the allelopathic potential of buckwheat. In field, buckwheat demonstrated strong inhibitory activity by suppressing weeds. laboratory studies, aqueous organic solvent extracts aerial parts common inhibited root shoot growth lettuce seedlings. The chloroform ethyl acetate showed maximum activity, plants grown in presence extract severe browning. constituents phase isolated identified as gallic acid (+)-catechin nuclear magnetic...

10.1614/0043-1745(2003)051[0657:aaobia]2.0.co;2 article EN Weed Science 2003-09-01

Buckwheat (Fagopyrum esculentum Moench) is an important annual plant cultivated for grain or as a cover crop in many countries, and it also used weed suppression agro-economic systems through its release of allelochemicals. Little known, however, concerning the mode action allelochemicals defence response against them. Here, microarrays revealed 94, 85, 28 genes with significantly higher expression after 6 h exposure to fagomine, gallic acid, rutin, respectively, compared controls. These...

10.1093/jxb/ern168 article EN cc-by-nc Journal of Experimental Botany 2008-07-04

ABSTRACT Symbioses between leguminous plants and soil bacteria known as rhizobia are of great importance to agricultural production nitrogen cycling. While these mutualistic symbioses can involve a wide range rhizobia, some legumes exhibit incompatibility with specific strains, resulting in ineffective nodulation. The formation nodules soybean ( Glycine max ) is controlled by several host genes, which referred Rj genes. cultivar BARC2 carries the Rj4 gene, restricts nodulation including...

10.1128/aem.01942-15 article EN Applied and Environmental Microbiology 2015-07-18

Medicinal and aromatic plants have the ability to transmit volatile allelochemicals affect their surrounding organisms. In this regard, interaction should also be considered. The inhibitory effects of 112 essential oils on lettuce seed seedling were investigated by cotton swab method. Germination (G%), Mean germination time (MGT), Lethal embryo (L%), dormancy (D%), radicle growth (R%), hypocotyl (H%) measured. Two methods used for evaluating allelopathic effects: simplified modified dilution...

10.3390/agronomy10020163 article EN cc-by Agronomy 2020-01-23

Efforts to improve soil productive capacity aimed at boosting crop production in the Northern Ghana has primarily focused on field-based experiments with little documentation farmer practice and local indigenous knowledge of management. A sample group 114 farmers from five farming communities Guinea Savannah was interviewed evaluate their practices context health, fertilization management, yield. Data were collected using semi-structured interviews responses for each category calculated...

10.3390/su10041034 article EN Sustainability 2018-03-30

Summary Allelopathic cover crops are one of the most promising application allelopathy for weed control and reduce synthetic herbicides input. Fifty three crop plant species (26 leguminous, 19 graminaceous 8 others) were assessed allelopathic activity using Plant Box Method. It was found that leguminous such as hairy vetch (Vicia villosa) velvetbean (Mucuna pruriens), crops, oat (Avena sativa) rye (Secale cereale), certain cultivars wheat (Triticum aestivum) barley (Hordeum vulgare)...

10.1300/j144v04n02_09 article EN Journal of Crop Production 2001-01-01

Understanding the community composition and diversity of arbuscular mycorrhizal fungi (AMF) in an agricultural ecosystem is important for exploiting their potential sustainable crop production. In this study, we described genetic structure indigenous AMF rain-fed rice cultivars across six different regions Ghana. The morphological molecular analyses revealed a total 15 genera isolated from roots. Rhizophagus Glomus were observed to be predominant all except Ashanti region, which was...

10.3390/agronomy10040559 article EN cc-by Agronomy 2020-04-12

Journal Article l-3,4-Dihydroxyphenylalanine as an Allelochemical Candidate from Mucuna pruriens (L.) DC. var. utilis Get access Yoshiharu Fujii, Fujii National Institute of Agro-Environmental Sciences, MAFF, Tsukuba 305, Japan Search for other works by this author on: Oxford Academic Google Scholar Tomoko Shibuya, Shibuya Tamaki Yasuda Research Vegetables, Ornamental Plants and Tea, Kanaya 428, Agricultural Biological Chemistry, Volume 55, Issue 2, 1 February 1991, Pages 617–618,...

10.1080/00021369.1991.10870627 article EN Agricultural and Biological Chemistry 1991-02-01

There is significant evidence that double emulsion has great potential for successfully encapsulating anthocyanins. However, few research studies are currently using a protein-polysaccharide mixture as stable emulsifier emulsion. This study aimed to improve the stability and in vitro digestibility of mulberry anthocyanins (MAs) by employing composed pea protein isolate (PPI) xanthan gum (XG). The influence various XG concentrations (0%, 0.2%, 0.4%, 0.6%, 0.8%, 1.0%) different temperatures (5...

10.3390/foods12010151 article EN cc-by Foods 2022-12-28

The allelopathic potential of buckwheat ( Fagopyrum esculentum ) was investigated. Field study showed that living reduced weed biomass compared with plots without buckwheat. Laboratory revealed root exudates suppressed and shoot growth weeds dry weight. Sequential partitioning the aqueous ethanolic extract aerial parts chloroform caused an 80% reduction in radicle elongation lettuce seedlings at a concentration less than 100 p.p.m. Fagomine, 4‐piperidone 2‐piperidinemethanol were isolated...

10.1046/j.1445-6664.2002.00055.x article EN Weed Biology and Management 2002-06-01
Coming Soon ...