In our previous studies, Bacillus megaterium KU143, Microbacterium testaceum KU313, and Pseudomonas protegens AS15 have been shown to be antagonistic Aspergillus flavus in stored rice grains. this study, the biocontrol activities of these strains were evaluated against candidus, fumigatus, Penicillium fellutanum, islandicum, which are predominant vitro vivo antifungal bacterial fungi on media grains, respectively. The volatiles produced by fungal development population also tested using...

Oomycete pathogens that belong to the genus Phytophthora cause devastating diseases in solanaceous crops such as pepper, potato, and tobacco, resulting crop production losses worldwide. Although application of fungicides efficiently controls these diseases, it has been shown trigger negative side effects environmental pollution, phytotoxicity, fungicide resistance plant pathogens. Therefore, biological control Phytophthora-induced was proposed an environmentally sound alternative...

This study was conducted to select antagonistic rhizobacteria against Phytophthora capsici using a sequential screening procedure and evaluate control efficacy of drench or root-dip treatments with the selected strains blight pepper in field. Out 439 bacterial strains, 16 potentially were screened through radicle seedling assays planta trials, five candidate CCR04, CCR80, GSE09, ISE13, ISE14, for field tests. In 2005 2006 tests, examined plants drenched suspension artificial pathogen...

We investigated the effects of water extracts composts (CWE) from commercial compost facilities for controlling root and foliar infection pepper plants by Phytophthora capsici. Among 47 CWE tested, Iljuk-3, Iljuk-7, Shinong-8, Shinong-9 significantly (P < 0.05) inhibited zoospore germination, germ tube elongation, mycelial growth, population P. All selected reduced disease incidence severity in seedling plant assays compared with controls. However, there were no significant differences...

We previously selected rhizobacterial strains CCR04, CCR80, GSE09, ISE13, and ISE14, which were antagonistic to Phytophthora blight of pepper. In this study, we investigated the effects root treatment rhizobacteria on anthracnose occurrence, ripening, yield pepper fruit in plastic house field 2008 2009. also examined volatiles produced by ripening mycelial growth spore development Colletotrichum acutatum capsici laboratory, identifying volatile compounds gas chromatography-mass spectrometry...

In this study, we evaluated the effect of different temperatures (10, 20, 30, and 40 °C) relative humidities (RHs; 12, 44, 76, 98%) on populations predominant grain fungi (Aspergillus candidus, Aspergillus flavus, fumigatus, Penicillium fellutanum, islandicum) biocontrol activity Pseudomonas protegens AS15 against aflatoxigenic A. flavus KCCM 60330 in stored rice. Populations all tested inoculated rice grains were significantly enhanced by both increased temperature RH. Multiple linear...

To combat the threat of antimicrobial resistance, it is important to discover innovative and effective alternative antibacterial agents. Garlic has been recommended as a medicinal plant with qualities. Hence, we conducted this study evaluate activity ultrasonicated garlic extract against Escherichia coli, Staphylococcus aureus sub. aureus, Streptococcus mutans, Poryphyromonas gingivalis. Aqueous was tested these strains, their quantified using both agar disk diffusion well methods; plate...

We investigated direct and indirect effects of compost water extracts (CWEs) from Iljuk-3, Iljuk-7, Shinong-8, Shinong-9 for the control anthracnoses caused by Colletotrichum coccodes on pepper C. orbiculare cucumber. All tested CWEs significantly (P &lt; 0.05) inhibited in vitro conidial germination appressorium formation fungal pathogens; however, DL-β-amino-n-butyric acid (BABA) failed to inhibit development pathogens. Direct treatments BABA cucumber leaves at 1 3 days before or after...

We previously developed a sequential screening procedure to select antagonistic bacterial strains against Phytophthora capsici in pepper plants. In this study, we used modified effective biocontrol P. capsici; evaluated the effect of selected on blight and anthracnose occurrence fruit yield plants under field plastic house conditions from 2007 2009. four potential (Pseudomonas otitidis YJR27, putida YJR92, Tsukamurella tyrosinosolvens YJR102, Novosphingobium capsulatum YJR107) among 239...

Background The gliotransmitters released from astrocytes are deemed to play key roles in the glial cell-neuron communication for normal function of brain. gliotransmitters, such as glutamate, ATP, D-serine, neuropeptide Y, stored vesicles and secreted following inositol 1,4,5-trisphosphate (IP3)-induced intracellular Ca2+ releases. Yet studies on identity IP3-dependent stores remain virtually unexplored. Principal Findings We have therefore studied potential existence IP3-sensitive cytoplasm...

The yellow-pigmented, Gram-stain-negative, rod-shaped bacterium KJ1R5(T) was isolated from the root of a pepper plant grown in field Kwangju, Korea. Strain characterized by physiological, biochemical, and molecular genetic analyses. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain most closely related to members genus Chryseobacterium, exhibited highest similarities with type strains Chryseobacterium vrystaatense (97.0 %) rhizosphaerae (97.1 %). DNA-DNA hybridization...

In our previous study, three bacterial strains, Bacillus megaterium KU143, Microbacterium testaceum KU313, and Pseudomonas protegens AS15, were selected as effective biocontrol agents against Aspergillus flavus on stored rice grains. this we evaluated the inhibitory effects of volatiles produced by strains A. growth aflatoxin production The significantly reduced mycelial in dual-culture assays compared with negative control strain, Sphingomonas aquatilis KU408, an untreated control. Of these...

Induced systemic resistance (ISR) can be activated by biotic agents, including root-associated beneficial bacteria to inhibit pathogen infection. We investigated priming-mediated ISR in cucumber induced Pseudomonas azotoformans GC-B19 and Paenibacillus elgii MM-B22 against Colletotrichum orbiculare (causal fungus of anthracnose). In addition, we examined whether this expression was bacterial density-dependent assessing peroxidase activity the presence absence pathogen. As a result, root...

The Gram-stain-negative, yellow-pigmented, rod-shaped bacterial strain GSE06T, isolated from the surface-sterilized root of a cucumber plant grown in field Gunsan, Korea, was characterized by not only cultural and morphological features but also physiological, biochemical molecular analyses. Phylogenetic analyses based on 16S rRNA gene sequences revealed that GSE06T most closely related to species genus Chryseobacterium . Furthermore, exhibited highest sequence similarities with type strains...