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Control Efficacy of Bacillus velezensis AFB2-2 against Potato Late Blight Caused by Phytophthora infestans in Organic Potato Cultivation
Min Jeong Kim, Chang Ki Shim, Jong-Ho Park 한국식물병리학회 The Plant Pathology Journal 16 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 6호 8 580-595 (16 pages)
weeks of infection in organic fields (Ryu et al., 2005). In recent years, the interest in biological control of plant pathogens has significantly increased due to the need for the introduction of environmentally friendly alternatives to minimize the intensive use of chemical pesticides (Ongena and Jacques, 2008; Quimby et al., 2002). Besides the anti- biotic effect, many microbial strains al... Although late blight is an important disease in eco- friendly potato cultivation in Korea, it is highly depen- dent on the use of eco-friendly agricultural materials and the development of biological control technology is low. It is a necessary to develop an effective biocontrol agent to inactivate late blight in the field. AFB2-2 strain is a gram-positive with peritrichous flagella. It can uti- lize 20 types of carbon sources, like L-arabinose, and D- trehalose at 35°C. The optimal growth... -
Roles of Fungal Volatiles from Perspective of Distinct Lifestyles in Filamentous Fungi
Mohamed El-Agamy Farh, Junhyun Jeon 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 3호 1 193-203 (11 pages)
an environmentally isolated strain TC09 of Cladosporium sphaerospermum triggers plant growth promotion, early fow- ering, and fruit yield increase. Front. Plant Sci. 9:1959. McMillan, J. D. and Boynton, B. L. 1994. Arbinose utilization by xylose-fermenting yeasts and fungi. Appl. Biochem. Biotech. 45:569-584. Mercier, J., Jimenez-Santamaria, J. I. and Tamez-Guerra, P. 2007. Development of the... Volatile compounds (VOCs) are not only media for communication within a species but also effective tools for sender to manipulate behavior and physiology of receiver species. Although the influence of VOCs on the interactions among organisms is evident, types of VOCs and specific mechanisms through which VOCs work during such interactions are only beginning to become clear. Here, we review the fungal volatile compounds (FVOCs) and their impacts on different recipient or- ganisms from perspective... -
Genetic Variation and Biological Control of Fusarium graminearum Isolated from Wheat in Assiut-Egypt
한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2016, 32권 2호 8 145-156 (12 pages)
is an efficient and environmentally friendly way to reduce the disease severity of FHB. The findings of the present study declared that, all the antago- nists inhibited the growth of F. graminearum in culture, however T. harzianum were the most effective, inhibiting the growth of the pathogen. In greenhouse, T. harzianum reduced the percentage of diseased spikelets by 55%, while B. subtilis... Fusarium graminearum Schwabe causes Fusarium head blight (FHB), a devastating disease that leads to extensive yield and quality loss of wheat and other cereal crops. Twelve isolates of F. graminearum were collected from naturally infected spikes of wheat from Assiut Egypt. These isolates were compared using SRAP. The results indicated distinct genetic groups exist within F. graminearum, and demonstrated that these groups have different biological properties, especially with respect to their... -
Antagonistic Activities of Bacillus spp. Strains Isolated from Tidal Flat Sediment Towards Anthracnose Pathogens Colletotrichum acutatum and C. gloeosporioides in South Korea
한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2015, 31권 2호 8 165-175 (11 pages)
control by pesticide application is unaffordable in develop- ing countries (Wesseling et al., 1997). For these reasons, biological control using antagonistic microorganisms has emerged as an environmentally friendly alternative for plant pathogen control (Pal and Gardener, 2006). Antagonistic microorganisms produce a wide variety of antimicrobial metabolites (Keel et al., 1992; Ongena and... Anthracnose is a fungal disease caused by Colletotrichum species that is detrimental to numerous plant species. Anthracnose control with fungicides has both human health and environmental safety implications. Despite increasing public concerns, fungicide use will continue in the absence of viable alternatives. There have been relatively less efforts to search antagonistic bacteria from mudflats harboring microbial diversity. A total of 420 bacterial strains were isolated from mudflats near the... -
Biological Control of Meloidogyne hapla Using an Antagonistic Bacterium
한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2014, 30권 3호 7 288-298 (11 pages)
microbes that can function as biocontrol agents for M. hapla through in vitro selection of antagonistic mi- croorganisms, and to investigate their biocontrol efficiency in vivo against RKNs. This environmentally friendly meth- od to control RKNs may be applicable to current situations in which carrots are being damaged by the pest M. hapla (Seo et al., 2014). Materials and methods Preparation... We examined the efficacy of a bacterium for biocontrol of the root-knot nematode (RKN) Meloidogyne hapla in carrot (Daucus carota subsp. sativus) and tomato (Solanum lycopersicum). Among 542 bacterial isolates from various soils and plants, the highest nematode mortality was observed for treatments with isolate C1-7, which was identified as Bacillus cereus based on cultural and morphological characteristics, the Biolog program, and 16S rRNA sequencing analyses. The population density and the... -
Cnidium officinale, Fungal disease, Fusarium solani, Fusarium wilt
Na-Kyeong Kim, Hyo-Jeong Lee, Tae-Ho Ryu, In-Sook Cho, Ho-Jong Ju, Rae-Dong Jeong 한국식물병리학회 식물병연구 5 Pages
한국식물병리학회 식물병연구 2021, 27권 2호 6 79-83 (5 pages)
1* 1 Department of Applied Biology, Institute of Environmentally Friendly Agriculture, Chonnam National University, Gwangju 61185, Korea 2 Horticultural and Herbal Crop Environment Division, National Institute of Horticultural and Herbal Science, Rural Development Administration, Wanju 55365, Korea 3 Department of Agricultural Biology, College of Agriculture & Life Sciences, Jeonbuk National... The aim of the present study was to develop a sensitive and specific detection method for the rapid detec- tion of apple scar skin viroid (ASSVd) in apple leaves. The resulting reverse transcription recombinase poly- merase amplification (RT-RPA) assay can be completed in 10 min at 42oC, is 10 times more sensitive than con- ventional reverse transcription polymerase chain reaction, and can specifically amplify ASSVd without any cross-reactivity with other common apple viruses, including apple... -
식물바이러스 면역반응 최신 연구 동향 및 전망
김남연, 홍진성, 정래동 한국식물병리학회 식물병연구 17 Pages
한국식물병리학회 식물병연구 2018, 24권 1호 2 9-25 (17 pages)
of Environmentally Friendly Agriculture, Chonnam National University, Gwangju 61185, Korea 2 Department of Applied Biology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 24341, Korea Received January 30, 2018 Revised February 19, 2018 Accepted February 20, 2018 Plant viruses cause signifcant yield losses and continuously threaten crop production, representing... -
Comparative study on various sponges as substrates for reduced graphene oxide-based supercapacitor
Dongcheol Choi, Kyuwon Kim 한국탄소학회 Carbon Letters 5 Pages
한국탄소학회 Carbon Letters 2016, Vol.18 12 71-75 (5 pages)
18, 71-75 (2016) Note Article Info Copyright Korean Carbon Society http://carbonlett.org To solve environmental problems and address the exhaustion of fossil fuel resources, the development of environmentally friendly and alternative energy storage devices has at- tracted much interest. Supercapacitors are attractive devices for such a purpose because of their high power density, long cycle... -
Effects of cross-linking methods for polyethylene-based carbon fibers: review
Kwan-Woo Kim, Hye-Min Lee, Jeong-Hun An, Byoung-Suhk Kim, Byung-Gak Min, Shin-Jae Kang, Kay-Hyeok An, Byung-Joo Kim 한국탄소학회 Carbon Letters 24 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 2 147-170 (24 pages)
and presents meaningful information on the progress of the silane-water cross-linking reaction. The test is also less time consuming and needs no solvent, so is more environmentally friendly compared to the gel content determination and solvent up- the incorporation of the silane carrier, which facilitated the penetration of water during the curing step. Thermal analysis revealed a marked... In recent decades, there has been an increasing interest in the use of carbon fiber reinforced plastic (CFRP) in aerospace, renewable energy and other industries, due to its low weight and relatively good mechanical properties compared with traditional metals. However, due to the high cost of petroleum-based precursors and their associated processing costs, CF remains a specialty product and as such has been limited to use in high-end aerospace, sporting goods, automotive, and specialist... -
Study on electrochemical performances of sulfur-containing graphene nanosheets electrodes for lithium-sulfur cells
Ki-Soo Son, Seok Kim 한국탄소학회 Carbon Letters 4 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.2 7 113-116 (4 pages)
due to the increased demand from huge markets such as that for electronic devices, the cathode materials are now required to provide both high-capacity and environmentally friendly energy storage. For these reasons, energy storage systems become more important than ever before. One option for next-generation batteries involves lithium-sulfur batteries (LSBs), and they have recently attracted a... Due to their morphology, electrochemical stability, and function as a conducting carbon matrix, graphene nanosheets (GNS) have been studied for their potential roles in improving the performance of sulfur cathodes. In this study, a GNS/sulfur (GNS/S) composite was prepared using the infiltration method with organic solvent. The structure, morphology and crystallinity of the composites were examined using scanning electron microscopy, transmission electron microscopy, and X-ray diffraction. The...