Hang Yeon Weon's research while affiliated with National Academy of Agricultural Science (South Korea) and other places

Publications (8)

Article
Bacillus velezensis YP2 inhibited the mycelial growth of several plant pathogens including Cercespora spp., Septoria sp., Phoma sp., Botrytis cinerea and Sclerotinia scleotiorum occurring in leafy vegetables. Control efficacy for powdery mildew caused by Erysiphe cruciferarm on red leaf mustard and cheong mustard by treatment of spraying with 10-fo...
Article
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Purpose Traditional organic formulations are widely used as a plant growth promoters; however, the knowledge on the microbial aspect of traditional organic formulations is still limited. The aim of this study was to illustrate the cultivable bacterial diversity of various traditional organic formulations and their potential for early plant growth p...
Article
This study was conducted to assess bacterial species richness, diversity and community distribution according to different fertilization regimes for 16 years in citrus orchard soil of volcanic ash. Soil samples were collected and analyzed from Compost (cattle manure, 2,000 kg/10a), 1/2 NPK+compost (14-20-14+2,000 kg/10a), NPK+compost (28-40-28+2,00...
Article
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An isolate of Bacillus amyloliquefaciens subsp. plantarum CC110 was selected as an effective antagonist for biological control of cucumber downy mildew caused by Pseudoperonospora cubensis. Temperature range for growth of CC110 isolate was , and its optimal temperature at . pH range for growth of CC110 isolate was 4.5~9.5, and its optimal pH at 7.0...
Article
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Bacillus amyloliquefaciens M27 was selected as a control agent for the biological control of cucumber powdery mildew. The new mixture of B.amyloliquefaciens M27 and plant (Eucalytus) extract was developed to improve the control activity of B.amyloliquefaciens M27 against cucumber powdery mildew. The mixed formulation showed the high preventive and...
Article
Full-text available
In order to select antagonists for biological control of downy mildew of cucumber, 126 bacteria were isolated from cucumber plants collected from several locations in Korea. Among them, Five isolates were selected as potential biocontrol agents of cucumber downy mildew using a leaf disc bioassay method. In preventive and curative effect tests, the...
Article
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Bacillus amyloliquefaciens M27 was isolated from the cotton-waste compost for cultivation of oyster mushroom (Pleurotus ostreatus). B. amyloliquefaciens M27 is a biocontrol agent with antagonistic activities against a wide range of fungal pathogens. The aim of this work was to evaluate the possibility of exploiting antagonistic bacteria, B. amyloli...
Article
In reared populations of Allomyrina dichotoma, commercial insects, the skin of last instar larvae was changed softer with opaque white, and infested grubs eventually died. To clarify the cause of the symptom, we collected the larvae of A. dichotoma from five farms and examined their intestinal bacterial florae using pyrosequencing technique. From t...

Citations

... E: 129.45393436807592) in a sterile method [19]. 5-10 g of soil samples were collected and incubated at 37 °C shaking incubator in LB broth and Tryptic soy broth(TSB) and transferred 2 times in a new medium [20]. After incubation, serial dilution was conducted and samples were spread by pour plate method [21]. ...
... were inoculated into soil, previous results showed the genus was positively correlated with nitrogen fixation and increased nitrate reductase activity in plant leaves [41]. Additionally, Brevundimonas, Pedobacter, Luteoliobacter, Lacibacter, and Caenimonas have all been isolated from the root communities of different plants [42][43][44][45][46]. Lastly, Larkinella, Rhabdobacter and Sphingoaurantiacus are genera that have been previously isolated from organic amendments (Larkinella) or soil systems (Rhabdobacter and Sphingoaurantiacus) [47][48][49]. ...
... The structure of soil bacterial communities can reflect the quality of soil ecological and directly affect crop yield and quality (Wang et al. 2018a). It has been reported that the factors affecting the diversity of soil bacteria in citrus orchards include soil parent material and pH (Joa et al. 2014), temperature (Luo et al. 2019), citrus fertilization methods (Hu et al. 2016), quality of irrigation water (Bastida et al. 2017), and the use of copper-containing fungicides (Zhou et al. 2011). However, the feature of the composition of soil bacterial community and their relationship with soil nutrient properties in citrus orchards of different ages remain unclear. ...
... Marketing campaigns from the insect industry have contributed to a rapid increase in the number of pet insects [5][6][7]. D. titanus castanicolor is a popular pet insect [7], and the rearing method of the subspecies is well documented [8]. In China and Japan, many stag beetle breeders have reared large-sized individuals of D. titanus [9]. ...
... Bacillus spp. has been shown to possess antifungal activity against plant pathogens [10]. Bacillus megaterium as a plant growth promoting rhizobacteria plays an important role in controlling plant diseases [11]. ...
... 일반적으로 알려져 있다 (Park et al., 2006;Lee et al., 2013). 인삼 밭 토양으로부터 미생물을 분리하여 인삼(Panax ginseng) 뿌리썩음병균에 길항력이 있는 바실러스 균주를 선발하여 동정하고, 항진균 활성에 대한 특성 조사 또한 이루어진 바 있다 (Kim et al., 2012). ...
... Reports from several studies provide strong evidence that strains of Bacillus species, including B. subtilis Lee et al., 2006;Lee et al., 2011), B. amyloliquefaciens (Kong et al., 2010a;Lee et al., 2013;Wu et al., 2007), B. licheniformis (Govender et al., 2005;Kim et al., 2007;Kong et al., 2010b), B. pumilus (Akhtar and Siddiqui, 2008;Sari et al., 2007), B. mycoides, and B. sphaericus, significantly reduce disease severity on a variety of hosts in greenhouse or field conditions (Kloepper et al., 2004). B. subtilis and B. amyloliquefaciens have been used in commercial biological control products due to their excellent antagonistic effects and high stability in harsh environmental conditions (Kwak et al., 2012). ...