Yeonjong Koo

ORCID: 0000-0002-0147-1758
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About
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Research Areas
  • Plant tissue culture and regeneration
  • Plant Molecular Biology Research
  • CRISPR and Genetic Engineering
  • Plant-Microbe Interactions and Immunity
  • Plant nutrient uptake and metabolism
  • Rabies epidemiology and control
  • Plant Gene Expression Analysis
  • Nematode management and characterization studies
  • Photosynthetic Processes and Mechanisms
  • Seaweed-derived Bioactive Compounds
  • Nanoparticles: synthesis and applications
  • Venomous Animal Envenomation and Studies
  • Plant Growth Enhancement Techniques
  • Marine and coastal plant biology
  • Insect and Arachnid Ecology and Behavior
  • Marine Invertebrate Physiology and Ecology
  • Plant Virus Research Studies
  • Pineapple and bromelain studies
  • Plant Stress Responses and Tolerance
  • Insect Resistance and Genetics
  • Agriculture, Soil, Plant Science
  • Laser-Ablation Synthesis of Nanoparticles
  • Ginseng Biological Effects and Applications
  • Composting and Vermicomposting Techniques
  • Carbon and Quantum Dots Applications

Chonnam National University
2017-2025

Convergence
2025

Chonnam National University Hospital
2021-2024

Rice University
2012-2020

University of Pennsylvania
2011-2013

After germination, plants enter juvenile vegetative phase and then transition to an adult before producing reproductive structures. The character timing of the juvenile-to-adult vary widely between species. In annual plants, this occurs soon after germination usually involves relatively minor morphological changes, whereas in trees other perennial woody it months or years can involve major changes shoot architecture. Whether is controlled by same mechanism unknown. forb Arabidopsis thaliana...

10.1371/journal.pgen.1002012 article EN cc-by PLoS Genetics 2011-02-24

Nutrients shape the growth, maturation, and aging of plants animals. In plants, juvenile to adult transition (vegetative phase change) is initiated by a decrease in miR156. Arabidopsis, we found that exogenous sugar decreased abundance miR156, whereas reduced photosynthesis increased level this miRNA. This effect was correlated with change timing vegetative change, primarily attributable expression two genes, MIR156A MIR156C, which were play dominant roles transition. The glucose-induced...

10.7554/elife.00260 article EN cc-by eLife 2013-03-26

The increasing likelihood of silver nanoparticle (AgNP) releases to the environment highlights importance understanding AgNP interactions with plants, which are cornerstones most ecosystems. In this study, poplars (Populus deltoides × nigra) and Arabidopsis thaliana were exposed hydroponically nanoparticles different sizes (PEG-coated 5 10 nm AgNPs, carbon-coated 25 AgNPs) or ions (Ag+, added as AgNO3) at a wide range concentrations (0.01 100 mg/L). Whereas all forms phytotoxic above...

10.1021/es4004334 article EN Environmental Science & Technology 2013-05-01

We explored the impact of quantum dot (QD) coat characteristics on NP stability, uptake, and translocation in Arabidopsis thaliana, subsequent transfer to primary consumers, Trichoplusia ni (T. ni). was exposed CdSe/CdZnS QDs with three different coatings: Poly(acrylic acid-ethylene glycol) (PAA-EG), polyethylenimine (PEI) poly(maleic anhydride-alt-1-octadecene)–poly(ethylene (PMAO–PEG), which are anionic, cationic, relatively neutral, respectively. PAA-EG-coated were stable taken up from a...

10.1021/es5050562 article EN Environmental Science & Technology 2014-12-01

Abstract Herbicide resistance is one of the main crop traits that improve farming methods and productivity. CRISPR-Cas9 can be applied to development herbicide-resistant crops based on a target site mechanism, by editing genes encoding herbicide binding proteins. The sgRNAs capable herbicides, pds (phytoene desaturase), ALS (acetolactate synthase), EPSPS (5-Enolpyruvylshikimate-3-phosphate were designed use with system in tomato ( Solanum lycopersicum cv. Micro-Tom). efficiency was tested...

10.1186/s13765-022-00679-w article EN cc-by Applied Biological Chemistry 2022-02-09

Abstract The Solanaceae family includes the largest flowering crops such as tomatoes, potatoes, and eggplants. Consumer demand has led to massive development of plants in Solanum genus, many different varieties are now available on market. recent advances Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/CRISPR-associated protein 9 (Cas9)-based genome editing have allowed laboratories smaller crop production companies utilize technology various crops. traditional...

10.1186/s13765-024-00870-1 article EN cc-by Applied Biological Chemistry 2024-03-05

ABSTRACT Alginate, a carbohydrate polymer produced by seaweed and some bacteria, is widely used in the food medicine industries. Alginate oligosaccharides, depolymerizing alginate, exhibit diverse biological functions, such as plant protection growth promotion, enhancement of microbial metabolic activity, potential applications biofuel production. This study isolated 13 alginate-degrading bacterial strains from over thousand seaside soil bacteria South Korea investigated their...

10.1128/spectrum.03164-24 article EN cc-by Microbiology Spectrum 2025-04-29

Plants encounter environmental stress challenges that are distinct from those of other eukaryotes because their relative immobility. Therefore, plants may have evolved regulatory mechanisms for conserved cellular functions. Plants, like eukaryotes, share aspects both calcium- and calmodulin-based signaling the autophagic process renewal. Here, we report a novel function an Arabidopsis calmodulin-related protein, CML24, insight into ATG4-regulated autophagy. CML24 interacts with ATG4b in...

10.1111/tpj.12043 article EN The Plant Journal 2012-10-08

Pine wilt disease (PWD), caused by the pinewood nematode, is most destructive in pine forest ecosystems worldwide. Extensive research has been done on PWD, but effective management yet to be devised. Generally, plants can resist pathogen attack via a combination of constitutive and inducible defenses. Systemic acquired resistance (SAR) an defense that occurs localized infection pathogens or treatment with elicitors. To manage PWD SAR trees, we tested previously known 12 Among them, methyl...

10.3389/fpls.2021.812414 article EN cc-by Frontiers in Plant Science 2022-01-05

Abstract Anthocyanin is a type of flavonoid that appears purple in plants. PAP1, PAP2, and MYB113 are the three major R2R3-MYB transcription factors regulate biosynthesis Arabidopsis thaliana . In this study, we found MYB genes anthocyanin accumulation different leaf stages. Under limited nutrient conditions, PAP1 PAP2 were highly induced juvenile leaves. Conversely, was expressed mainly adult addition, investigated role trans-acting siRNA4 (TAS4) post-transcriptional regulation expression...

10.1186/s13765-020-00584-0 article EN cc-by Applied Biological Chemistry 2021-01-15

Objective This retrospective study investigated the nature and severity of venom-induced consumption coagulopathy (VICC) determined clotting factors involved in VICC patients after envenomation by South Korea's snakes. Additionally, we studied effectiveness antivenom for treatment envenomation.Methods Included were divided into three groups according to (no VICC, partial complete VICC). Data, including changes coagulation parameters during hospitalization at presentation, collected...

10.1080/15563650.2021.1884694 article EN Clinical Toxicology 2021-03-01

Biological responses to photothermal effects of gold nanoparticles (GNPs) have been demonstrated and employed for various applications in diverse systems except one important class – plants. Here, the uptake GNPs through Arabidopsis thaliana roots translocation leaves are reported. Successful plasmonic nanobubble generation acoustic signal detection planta is demonstrated. Furthermore, harboring exposed continuous laser or noncoherent light show elevated temperatures across leaf surface...

10.1002/smll.201502461 article EN Small 2015-12-10

The role of the inflammatory process in pathogenesis local edema-related envenomation has not been explored with endemic venomous snakebites Korea. Gloydius species are responsible for most South In this study we aimed to investigate whether neutrophil-lymphocyte ratio is relevant snake envenomation-induced edema This retrospective divided 126 patients into two groups according severity at presentation. Logistic regression models were used association between and edema. Sixty-one (48.4%) had...

10.1016/j.toxicon.2024.107635 article EN cc-by-nc-nd Toxicon 2024-02-15

Content This study investigated the incidence, progression and clinical course of myocardial injury-related snake envenomation in South Korea. In addition, this evaluated whether antivenom guidelines are appropriate to control patients with injury.Methods The included 198 who received after a snakebite, they were divided into two groups according evidence injury (defined as elevated troponin I or ischemic change on electrocardiogram) at presentation. Data including serial I,...

10.1080/15563650.2020.1802473 article EN Clinical Toxicology 2020-08-25

BACKGROUND:The Asian hornet (Vespa velutina nigrithorax), a wasp species, has attacked honey bee populations and affected the beekeeping industry in Korea over past 15 years.However, little research been done with this invasive species.In study, we investigated intestine bacterial microbiota of hornets bees to design an attractive trap for hornets.METHODS AND RESULTS: Genomic DNAs isolated from microorganisms were utilized amplify 16S rDNA comparative sequence analysis.The next generation...

10.5338/kjea.2018.37.2.18 article EN Korean Journal of Environmental Agriculture 2018-06-30

Abstract Aspergillus niger F22 producing oxalic acid (OA) as a nematicidal component is currently used microbial nematicide. OA known to induce systemic resistance in plant diseases caused by fungi, bacteria, and viruses, but the induced of has not yet been elucidated root-knot nematodes (RKNs). In this study, we investigated functional mechanism A. formulation (Nemafree, 20% SC) tomato RKN disease Meloidogyne incognita analyzed their effectiveness against disease. Foliar spray soil drench...

10.21203/rs.3.rs-426228/v1 preprint EN cc-by Research Square (Research Square) 2021-05-26

Nitrous oxide is a potent greenhouse gas with significant impact on global warming and the depletion of stratospheric ozone layer.The primary source nitrous in agricultural soils excessive application inorganic nitrogen during crop growth stage.This generated through nitrification followed by denitrification processes facilitated soil bacteria.We confirmed that supplying controlled-release fertilizer can effectively decrease production while maintaining similar pepper compared to urea...

10.3839/jabc.2024.011 article EN Journal of Applied Biological Chemistry 2024-03-12
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