A5030529442- Plant Pathogens and Fungal Diseases
- Plant-Microbe Interactions and Immunity
- Plant Disease Resistance and Genetics
- Plant Disease Management Techniques
- Plant Pathogenic Bacteria Studies
- Fungal Plant Pathogen Control
- Turfgrass Adaptation and Management
- Legume Nitrogen Fixing Symbiosis
- Microbial Natural Products and Biosynthesis
- Mycorrhizal Fungi and Plant Interactions
- Nematode management and characterization studies
- Plant Pathogens and Resistance
- Powdery Mildew Fungal Diseases
- Plant Parasitism and Resistance
- Fungal Biology and Applications
- Plant and Fungal Interactions Research
- Agriculture, Soil, Plant Science
- Genomics and Phylogenetic Studies
- Algal biology and biofuel production
- Yeasts and Rust Fungi Studies
- Plant tissue culture and regeneration
- Plant Virus Research Studies
- Plant nutrient uptake and metabolism
- Plant and animal studies
- Soil Carbon and Nitrogen Dynamics
Gyeongsang National University
2016-2025
Korea Atomic Energy Research Institute
2024-2025
Rural Development Administration
2012-2023
Gyeongsang National University Hospital
2020
Washington State University
2008-2012
Chungnam National University
2012
Noble Research Institute
2008
Summary Medicago truncatula is a fast‐emerging model for the study of legume functional biology. We used tobacco retrotransposon Tnt1 to tag genome and generated over 7600 independent lines representing an estimated 190 000 insertion events. inserted on average at 25 different locations per during tissue culture, insertions were stable subsequent generations in soil. Analysis 2461 flanking sequence tags (FSTs) revealed that appears prefer gene‐rich regions. The proportion coding sequences...
ABSTRACT Natural antibiotics are thought to function in the defense, fitness, competitiveness, biocontrol activity, communication, and gene regulation of microorganisms. However, scale quantitative aspects antibiotic production natural settings poorly understood. We addressed these fundamental questions by assessing geographic distribution indigenous phenazine-producing (Phz + ) Pseudomonas spp. accumulation broad-spectrum phenazine-1-carboxylic acid (PCA) rhizosphere wheat grown...
Microbes can establish mutualistic interactions with plants and insects. Here we track the movement of an endophytic strain Streptomyces bacteria throughout a managed strawberry ecosystem. We show that isolate found in rhizosphere on flowers protects both plant pollinating honeybees from pathogens (phytopathogenic fungus Botrytis cinerea pathogenic bacteria, respectively). The pollinators transfer among plants, move into vascular bundle rhizosphere. Our results present tripartite mutualism...
Plants in nature interact with other species, among which are mutualistic microorganisms that affect plant health. The co-existence of microbial symbionts the host contributes to fitness a natural context. In turn, composition microbiota responds environment and state host, raising possibility it can be engineered benefit plant. However, technology for engineering structure microbiome is not yet available.The loss diversity reduction population density Streptomyces globisporus SP6C4, core...
Plant growth‐promoting rhizobacteria (PGPR) facilitate the plant growth and enhance their induced systemic resistance (ISR) against a variety of environmental stresses. In this study, we carried out integrative analyses on proteome, transcriptome, metabolome to investigate Arabidopsis root shoot responses well‐known PGPR strain Paenibacillus polymyxa ( P. ) E681. Shoot fresh dry weights were increased, whereas length was decreased by treatment with 2DE approach in conjunction MALDI‐TOF/TOF...
Abstract Rice paddies are a major source of methane emissions. To meet the food demand growing population and to cope with global warming, reducing greenhouse gases enhancing yields critical. Here we demonstrate that loss-of-function rice allele, gs3 , mitigates emissions from methanogens by allocating more photosynthates grain less root increases yield enlarging size weight.
In disaster situations such as tsunamis, floods, and typhoons, fungal contamination can significantly intensify within 48 hours of submersion, rapidly spreading damaging the value structural integrity organic cultural heritage artifacts. Consequently, application radiation-based disinfection has been increasingly studied an effective method for prompt reliable treatment. most cases, species were successfully eradicated at a radiation dose 5 kGy (gamma rays). Nevertheless, certain strains...
Abstract Aims Chlorella is a microalgae species known to have plant growth-promoting (PGP) and disease-suppressing effects in crops. However, the mechanism of Chlorella's efficacy on crops remains unclear. Methods results We investigated hypothesis that fusca CHK0059 promotes health by regulating structure microbiota community. The phenotypes CHK0059-treated strawberry showed number leaves shoot weights was increased more than untreated plants. In communities, beta diversity no significant...
Stone fruits are economically important crops, comprising the largest cultivated area in Korea after apples and tangerines. Various pathogens infect these stone fruits, with brown rot causing significant economic damage worldwide. The pathogen responsible for is <i>Monilinia</i> spp. There several species of <i>Monilinia</i>, <i>Monilinia laxa</i> fructicola</i> being primary fruits. While <i>M. primarily found Europe, mainly located United...
ABSTRACT 2,4-Diacetylphloroglucinol (2,4-DAPG), an antibiotic produced by Pseudomonas fluorescens , has broad-spectrum activity, inhibiting organisms ranging from viruses, bacteria, and fungi to higher plants mammalian cells. The biosynthesis regulation of 2,4-DAPG in P. are well described, but the mode action against target is poorly understood. As a first step elucidate mechanism, we screened deletion library Saccharomyces cerevisiae broth agar medium supplemented with 2,4-DAPG. We...
Soybean (Glycine max), a crucial global crop, experiences yearly yield reduction due to diseases such as anthracnose (Colletotrichum truncatum) and root rot (Fusarium spp.). The use of fungicides, which have traditionally been employed control these phytopathogens, is now facing challenges the emergence fungicide-resistant strains. Streptomyces bacillaris S8 strain previously known produce valinomycin t through nonribosomal peptide synthetase (NRPS) pathway. objective this study was evaluate...
We determined whether isolates of the take-all pathogen Gaeumannomyces graminis var. tritici become less sensitive to 2,4-diacetylphloroglucinol (2,4-DAPG) during wheat monoculture as a result exposure antibiotic over multiple growing seasons. Isolates G. were baited from roots native grasses collected noncropped fields and with different cropping histories near Lind, Ritzville, Pullman, Almota, WA. characterized by using morphological traits, variety-specific polymerase chain reaction...
Streptomyces spp. have the ability to produce a wide variety of secondary metabolites that interact with environment. This study aimed discover antifungal volatiles from genus and determine mechanisms inhibition. Volatiles identified included three major terpenes, geosmin, caryolan-1-ol an unknown sesquiterpene. antiSMASH KEGG predicted volatile terpene synthase gene clusters occur in genome. Growth inhibition was observed when fungi were exposed volatiles. Biological activity has previously...
Streptomyces griseus S4-7 is representative of strains responsible for the specific soil suppressiveness Fusarium wilt strawberry caused by oxysporum f. sp. fragariae. Members genus secrete diverse secondary metabolites including lantipeptides, heat-stable lanthionine-containing compounds that can exhibit antibiotic activity. In this study, a class II lantipeptide provisionally named grisin, previously unknown biological function, was shown to inhibit F. oxysporum. The inhibitory activity...
The cultivation of a Streptomyces sp. SD53 strain isolated from the gut silkworm Bombyx mori produced two macrolactam natural products, piceamycin (1) and bombyxamycin C (2). planar structures 1 2 were identified by combination NMR, MS, UV spectroscopic analyses. absolute configurations assigned based on chemical chromatographic methods as well ECD calculations. A new chromatography-based experimental method for determining stereogenic centers β to nitrogen atoms in macrolactams was...
Plants have evolved various defense mechanisms against biotic stress. The most common mechanism involves the production of metabolites that act as compounds. Bacterial angular leaf spot disease (Xanthomonas fragariae) strawberry (Fragaria x ananassa) has become increasingly destructive to leaves and plant production. In this study, we examined metabolic changes associated with establishment long-term bacterial stress using UPLC-QTOF mass spectrometry. Infected showed decreased levels gallic...
Plant immune responses can be triggered by chemicals, microbes, pathogens, insects, or abiotic stresses. In particular, induced systemic resistance (ISR) refers to the activation of system due a plant's interaction with beneficial microorganisms. The phenolic compound, 2,4-diacetylphloroglucinol (DAPG), which is produced Pseudomonas spp., acts as an ISR elicitor, yet DAPG's mechanism in remains unclear. this study, transgenic Arabidopsis thaliana plants overexpressing DAPG hydrolase gene...