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Effect of the Nonlinearity of the Soft Soil on the Elastic and Inelastic Seismic Response Spectra
김용석, Kim. Yong-Seok 한국지진공학회 한국지진공학회논문집 8 Pages
한국지진공학회 한국지진공학회논문집 2005, Vol.9 No.4 11-18 (8 pages)
비탄성 지진해석은 구조물-지반 체계의 비선형 거동 때문에 내진설계를 위해 필요하고, 합리적인 내진설계를 위해서 지반-구조물 상호작용을 고려한 성능에 기준한 설계의 중요성도 인식되고 있다. 이 연구에서는 11개 중약진과 5개 강진 기록을 최대 가속도 0.075g, 0.15g, 0.2g와 0.3g로 조정하여 연약지반에 세워진 단자유도계에 대한 탄성과 비탄성 지진응답해석을 지반의 비선형성을 고려하여 수행하였다. 의사3차원 동적해석 프로그램을 사용하여 주파수 영역에서 지진하중을 암반에 작용시켜 구조물-지반 체계에 대한... -
Inelastic Response Spectra Due to the Weak Earthquakes Considering the Nonlinear Soft Soil Layer
Kim. Yong-Seok 한국지진공학회 한국지진공학회논문집 8 Pages
한국지진공학회 한국지진공학회논문집 2003, Vol.7 No.4 15-22 (8 pages)
강진을 고려한 지진설계 규준은 약진지역에서는 불필요한 경제적 손실을 가져을 수 있고, 지반-구조물 상호작용을 고려한 성능기준 설계가 합리적인 지진설계를 위해서 중요하다는 것이 인식되었다. 이 연구에서는 연약지반 위에 놓인 단자유도계의 탄성, 비탄성 지진응답 해석을 지반의 비선형성을 고려하여 최대지진가속도를 0.07g와 0.11g로 조정한 11개 약진에 대해 수행하였다. 지진응답해석은 지반-구조물체계에 대해 유사 3차원 동적해석 프로그램으로 암반에 지진기록을 입력하여 한 단계에 일괄적으로 수행하였다. 연구 결과에... -
Study on Lond Transfer Characteristics of Sand Compaction Piles in Soft Soil Deposits
김재권, 김수일, 정삼성, Kim. Jaekwon, Kim. Soo-Il, Jung. Sang-Seom 한국지반공학회 韓國地盤工學會論文集 14 Pages
한국지반공학회 韓國地盤工學會論文集 2004, Vol.20 No.7 183-196 (14 pages)
모래다짐말뚝은 압밀침하촉진과 지지력향상을 도모할 수 있는 연약지반 개량공법으로 그 사용성이 증가하고 있다. 본 연구에서는 실내시험과 3-D 유한요소해석을 수행하여 $30-40\%$의 저치환율 모래다짐말뚝의 하중전이특성을 고찰해본다. 또한, 이러한 연구결과는 실험치와의 검증을 통하여 모래다짐말뚝 하중전이특성평가를 위한 간편법을 제시하는데 사용되었다. -
Inelastic displacement ratios for evaluation of stiffness degrading structures with soil structure interaction built on soft soil sites
Aydemir. Muberra Eser 테크노프레스 Structural engineering and mechanics : An international journal 18 Pages
테크노프레스 Structural engineering and mechanics : An international journal 2013, Vol.45 No.6 741-758 (18 pages)
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Soil structure interaction effects on structural parameters for stiffness degrading systems built on soft soil sites
Aydemir. Muberra Eser 테크노프레스 Structural engineering and mechanics : An international journal 22 Pages
테크노프레스 Structural engineering and mechanics : An international journal 2013, Vol.45 No.5 655-676 (22 pages)
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Analyzing consolidation data to predict smear zone characteristics induced by vertical drain installation for soft soil improvement
Parsa-Pajouh. Ali, Fatahi. Behzad, Vincent. Philippe, Khabbaz. Hadi 테크노프레스 Geomechanics & engineering 27 Pages
테크노프레스 Geomechanics & engineering 2014, Vol.7 No.1 105-131 (27 pages)
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Genome Wide Analysis of the Potato Soft Rot Pathogen Pectobacterium carotovorum Strain ICMP 5702 to Predict Novel Insights into Its Genetic Features
Tista Mallick, Rukmini Mishra, Sasmita Mohanty, Raj Kumar Joshi 한국식물병리학회 The Plant Pathology Journal 13 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 2호 4 102-114 (13 pages)
a gram-negative, broad host range bacterial pathogen which causes soft rot disease in potatoes as well as other vegetables worldwide. While Pectobacterium infection relies on the production of major cell wall degrading enzymes, other virulence factors and the mechanism of genetic adaptation of this pathogen is not yet clear. In the present study, we have performed an in-depth genome-wide characterization of Pcc strain ICMP5702 isolated from potato and compared it with other pathogenic bacteria... -
Biocontrol Activity of Aspergillus terreus ANU-301 against Two Distinct Plant Diseases, Tomato Fusarium Wilt and Potato Soft Rot
Hyong Woo Choi, S. M. Ahsan 한국식물병리학회 The Plant Pathology Journal 13 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 1호 4 33-45 (13 pages)
To screen antagonistic fungi against plant pathogens, dual culture assay (DCA) and culture filtrate assay (CFA) were performed with unknown soil-born fungi. Among the different fungi isolated and screened from the soil, fungal isolate ANU-301 successfully inhibited growth of different plant pathogenic fungi, Colletotri- chum acutatum, Alternaria alternata, and Fusarium oxysporum, in DCA and CFA. Morphological character- istics and rDNA internal transcribed spacer sequence analysis identified... -
Evaluation of Streptomyces saraciticas as Soil Amendments for Controlling Soil-Borne Plant Pathogens
Pei-Hsuan Wu, Tung-Tsuan Tsay, Peichen Chen 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 6호 9 596-606 (11 pages)
Soil-borne diseases are the major problems in mono cropping. A mixture (designated LTM-m) composed of agricultural wastes and a beneficial microorganism Streptomyces saraceticus SS31 was used as soil amendments to evaluate its efficacy for managing Rhizoctonia solani and root knot nematode (Meloidogyne incognita). In vitro antagonistic assays revealed that SS31 spore suspensions and culture broths effectively suppressed the growth of R. solani, reduced nematode egg hatching, and increased... -
Chemical Fungicides and Bacillus siamensis H30-3 against Fungal and Oomycete Pathogens Causing Soil-Borne Strawberry Diseases
Bo Reen Park, Hyun Jin Son, Jong Hyeob Park, Eun Soo Kim, Seong Jin Heo, Hae Ree Youn, Young Mo Koo, A Yeong Heo, Hyong Woo Choi, Mee Kyung Sang, Sang-Woo Lee, Sung Hwan Choi, Jeum Kyu Hong 한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 1호 7 79-85 (7 pages)
Chemical and biological agents were evaluated to in- hibit Colletotrichum fructicola, Phytophthora cactorum, and Lasiodiplodia theobromae causing strawberry dis- eases. Mycelial growths of C. fructicola were gradually arrested by increasing concentrations of fungicides pyraclostrobin and iminoctadine tris (albesilate). P. cac- torum and L. theobromae were more sensitive to pyra- clostrobin compared to C. fructicola, but iminoctadine tris (albesilate) was not or less effective to limit P. cac-... -
Performance of IPS Earth Retention System in Soft Clay
김낙경, 박종식, 오희진, 한만엽, 김문영, 김성보, Kim. Nak-Kyung, Park. Jong-Sik, Oh. Hee-Jin, Han. Man-Yop, Kim. Moon-Young, Kim. Sung-Bo 한국지반공학회 韓國地盤工學會論文集 9 Pages
한국지반공학회 韓國地盤工學會論文集 2007, Vol.23 No.3 5-13 (9 pages)
본 연구에서는 도심지 연약 지반에 적용된 IPS(Innovative Prestressed Support) 흙막이 시스템의 거동을 파악하고 안정성을 확인하였다. 새로운 IPS 흙막이 시스템은 강선의 인장 저항을 이용하여 띠장의 강성을 획기적으로 증가시켜 버팀보의 설치 간격을 대폭 증가시키는 공법이다. IPS 흙막이 시스템이 적용된 현장은 부산 북부 지역 내에 위치한 폭 28.8m, 길이 52.0m 그리고 굴착 깊이 16.1m 규모의 굴착 현장으로서 느슨한 매립토와 연약 점토로 이루어져 있으며 두께 650mm의 지중 연속벽, 5단의 IPS 시스템과 중앙 스트럿으로... -
Lateral seismic response of building frames considering dynamic soil-structure interaction effects
RezaTabatabaiefar. S. Hamid, Fatahi. Behzad, Samali. Bijan 테크노프레스 Structural engineering and mechanics : An international journal 11 Pages
테크노프레스 Structural engineering and mechanics : An international journal 2013, Vol.45 No.3 311-321 (11 pages)
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Experimental study of embedding motion and holding power of drag embedment type anchor on hard and soft seafloor
Shin. Hyun-Kyoung, Seo. Byoung-Cheon, Lee. Jea-Hoon 대한조선학회 International journal of naval architecture and ocean engineering 8 Pages
대한조선학회 International journal of naval architecture and ocean engineering 2011, Vol.3 No.3 193-200 (8 pages)
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A Study on Interaction Behaviors of Soil-PET Mat installed on Dredged Soils
이만수, 지성현, 양태선, Lee. Man-Soo, Jee. Sung-Hyun, Yang. Tae-Seon 한국지반공학회 韓國地盤工學會論文集 9 Pages
한국지반공학회 韓國地盤工學會論文集 2006, Vol.22 No.3 13-21 (9 pages)
토목섬유를 토목공학에 적용한 이후 토목섬유의 손상에 대하여 많은 관심이 되어왔다. 이 논문에서는 시험시공을 3지점에서 수행했는데 목적은 연약한 점토지반상에서 보강재의 거동을 조사하고 매립시 최적의 시공방법론을 찾기위한 것이다. 이 시험시공에 사용된 폴리에스테르매트(인장강도 15톤)의 봉합부분이 원호활동 사면파괴로 인하여 파괴되었는데 이는 급격한 성토로 인해 과잉간극수압이 발생하여 하중이 증가했기 때문이다. 매트의 인장 파열이 진행되는 지반 거동 중 성토고로 유발될 수 있는 간극수압보다 큰 간극수압이... -
한국 선사고고학의 방법론적 전망
안승모 한국고고학회 한국고고학전국대회 발표문 22 Pages
한국고고학회 한국고고학전국대회 발표문 제38회 한국고고학대회 1 31-52 (22 pages)
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함안 성산산성의 고대환경 복원연구(자유패널발표)
국립가야문화재연구소 한국고고학회 한국고고학전국대회 발표문 74 Pages
한국고고학회 한국고고학전국대회 발표문 제35회 한국고고학대회 25 401-474 (74 pages)
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Epizootiological characteristics of viable bacteria and fungi in indoor air from porcine, chicken, or bovine husbandry confinement buildings
Katharine Roque, Gyeong-Dong Lim, Ji-Hoon Jo, Kyung-Min Shin, Eun-Seob Song, Ravi Gautam, Chang-Yul Kim, Kyungsuk Lee, Seungwon 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 4호 12 531-538 (8 pages)
Microorganisms found in bioaerosols from animal confinement buildings not only foster the risk of spreading diseases among livestock buildings, but also pose health hazards to farm workers and nearby residents. This study identified the various microorganisms present in the air of swine, chicken, and cattle farms with different kinds of ventilation conditions in Korea. Microbial air samples were collected onto Petri dishes with bacterial or fungal growth media using a cascade impactor. Endotoxin... -
Efficacy of silver ions against Sacbrood virus infection in the Eastern honey bee Apis cerana
Ah-Jin Ahn, Kyu-Sung Ahn, Guk-Hyun Suh, Jin-Hyeong Noh, Young-Ha Kim, Mi-Sun Yoo, Seung-Won Kang, Sung-Shik Shin 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 3호 6 289-295 (7 pages)
Although silver is known to be a broad-spectrum biocidal agent, the effects of this metal against Sacbrood virus have not yet been investigated. In this study, we evaluated the efficacy of silver ions against natural Korean sacbrood virus (KSBV) infection of Apis (A.) cerana. Ten KSBV-infected colonies containing A. cerana with similar strength and activity were selected from an apiary located in Bosung-gun (Korea). Among these, five colonies were randomly assigned to the treatment group that... -
Short Communication : Fecal microbiota analysis of obese dogs with underlying diseases: a pilot study
Hyung Jin Park , Sang Eun Lee , Hyeun Bum Kim , Jae Hoon Kim , Kyoung Won Seo , Kun Ho Song 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 4 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2015, 제 55권 제 3호 9 205-208 (4 pages)
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지반공학적 연구를 통한 함안 성산산성의 부엽공법 조사
김진만(Jinman Kim), 이희범(Heebeom Lee), 양숙자(Sukja Yang) 한국고고학회 한국고고학보 22 Pages
한국고고학회 한국고고학보 2012, 제 83집 4 130-151 (22 pages)
한국의 함안에 위치한 성산산성은 삼국시대의 석축산성으로서 축성과정에서 부엽공법을 사용해 학계로부터 크게 주목을 받고 있는 유적이다. 본 연구는 함안 성산산성과 같은 유적의 형성과 활용, 그리고 폐기에 대한 연구를 통해 고고학과 공학 기술이 결합된 유적 해석의 새로운 연구 모델을 제시하고 현대 토목공학기술의 원형을 추적하여 공학기술에 역사적 정체성을 부여하기 위해 수행되었다. 융합연구의 수행 과정에는 연구 대상 유적인 함안성산산성 현장 답사, 관련 문헌 연구, 지반공학적 실험, 그리고 컴퓨터를 이용한 모델링... -
Multiple Effects of a Novel Epothilone Analog on Cellular Processes and Signaling Pathways Regulated by Rac1 GTPase in the Human Breast Cancer Cells
HongZhang, FanAn, LiTang, RongguoQiu 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.2 4 109-120 (12 pages)
The epothilones are a class of microtubule inhibitors that exhibit a strong antitumor activity. UTD2 is a novel epothilone analog generated by genetic manipulation of the polyketide biosynthetic gene cluster. This study investigated the effects of UTD2 on the actin cytoskeleton and its critical regulators, and the signaling pathways which are essential for cell motility, growth and survival in MCF-7 breast cancer cells. Results showed that UTD2 inhibited the cellular functions of actin... -
Pathogenicity of Bacillus Strains to Cotton Seedlings and Their Effects on Some Biochemical Components of the Infected Seedlings
Aly A. Aly, Omima M. El-Mahdy, Marian M. Habeb, Abeer Elhakem, Amal A. Asran, Maryan M. Youssef, Heba I. Mohamed, Rania S. Hanafy 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 2호 3 91-101 (11 pages)
cultivars was individually treated with powdered inoculum of each bacterial strain. Untreated seeds were planted as control treatments in autoclaved soil. Effects of the tested strains on levels and activities of some biochemical components of the infected seedlings were also assayed. The biochemical components included total soluble sugars, total soluble proteins, total free amino acids, peroxidase, polyphenol oxidase, phenols, and lipid peroxidation. ANOVA showed that Bacillus strain (B) was a... -
Evaluation of Durum Wheat Genotypes for Resistance against Root Rot Disease Caused by Moroccan Fusarium culmorum Isolates
Jamila Bouarda, Filippo M. Bassi, Hugh Wallwork, Mohammed Benchacho, Mustapha Labhilili, Ilyass Maafa, Aicha El Aissami, Fatiha Bentata 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 1호 1 1-11 (11 pages)
Fusarium culmorum is one of the most important causal agents of root rot of wheat. In this study, 10 F. culmorum isolates were collected from farms located in five agro-ecological regions of Morocco. These were used to challenge 20 durum wheat genotypes via artificial inoculation of plant roots under controlled conditions. The isolate virulence was determined by three traits (roots browning index, stem browning index, and severity of root rot). An alpha-lattice design with three replicates was... -
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)
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... -
Response of Barley Genotypes to Fusarium Head Blight under Natural Infection and Artificial Inoculation Conditions
Raja Khanal, Thin Meiw Choo, Allen G. Xue, Bernard Vigier, Marc E. Savard, Barbara Blackwell, Junmei Wang, Jianming Yang, Richard A. Martin 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 5호 5 455-464 (10 pages)
Forty-eight spring barley genotypes were evaluated for deoxynivalenol (DON) concentration under natural infection across 5 years at Harrington, Prince Edward Island. These genotypes were also evaluated for Fusari- um head blight (FHB) severity and DON concentration under field nurseries with artificial inoculation of Fusarium graminearum by the grain spawn method across 2 years at Ottawa, Ontario, and one year at Hangzhou, China. Additionally, these genotypes were also evaluated for FHB severity... -
Suppression of Ripe Rot on ‘Zesy002’ Kiwifruit with Commercial Agrochemicals
Yong Ho Shin, Magda Ledesma, Sonia Whitman, Joy Tyson, Birgit Zange, Ki Deok Kim, Yong Chull Jeun 한국식물병리학회 The Plant Pathology Journal 9 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 4호 4 347-355 (9 pages)
Ripe rot caused by Botryosphaeria dothidea is one of the serious diseases of postharvest kiwifruit. In or- der to control ripe rot on Actinidia chinensis cultivar ‘Zesy002’, several commercial agrofungicides were selected by an antifungal test on an artificial medium. Furthermore, disease suppression by the selected fungi- cides was evaluated on the kiwifruit by inoculation with a conidial suspension of B. dothidea. On the artificial media containing boscalid + fludioxonil was shown to be the... -
Current Classification of the Bacillus pumilus Group Species, the Rubber- Pathogenic Bacteria Causing Trunk Bulges Disease in Malaysia as Assessed by MLSA and Multi rep-PCR Approaches
Ainur Ainiah Azman Husni, Siti Izera Ismail, Noraini Md. Jaafar, Dzarifah Zulperi 한국식물병리학회 The Plant Pathology Journal 15 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 3호 4 243-257 (15 pages)
Bacillus pumilus is the causal agent of trunk bulges dis- ease affecting rubber and rubberwood quality and yield production. In this study, B. pumilus and other closely related species were included in B. pumilus group, as they shared over 99.5% similarity from 16S rRNA analysis. Multilocus sequence analysis (MLSA) of five housekeeping genes and repetitive elements-based poly- merase chain reaction (rep-PCR) using REP, ERIC, and BOX primers conducted to analyze the diversity and systematic... -
Antagonistic Activity of Bacteria Isolated from Apple in Different Fruit Development Stages against Blue Mold Caused by Penicillium expansum
Roc?o Crystabel L?pez-Gonz?lez, Yara Suhan Ju?rez-Campusano, Jos? Luis Rodr?guez-Ch?vez, Guillermo Delgado-Lamas, Sof?a Mar?a Arvizu Medrano, Ram?n ?lvar Mart?nez-Peniche, Juan Ramiro Pacheco-Aguilar 한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 1호 2 24-35 (12 pages)
Blue mold caused by Penicillium expansum is one of the most significant postharvest diseases of apples. Some microorganisms associated with the surface of ripen- ing apples possess the ability to inhibit the growth of P. expansum. However, the existing literature about their colonization in the stages before ripening is not explored in depth. This study aims to characterize the antagonistic capacity of bacterial populations from five fruit development stages of ‘Royal Gala’ apples. The re-... -
Inhibitory Activity of Sedum middendorffianum-Derived 4-Hydroxybenzoic Acid and Vanillic Acid on the Type III Secretion System of Pseudomonas syringae pv. tomato DC3000
Ji Eun Kang, Byeong Jun Jeon, Min Young Park, Beom Seok Kim 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 6호 8 608-617 (10 pages)
The type III secretion system (T3SS) is a key virulence determinant in the infection process of Pseudomonas syringae pv. tomato DC3000 (Pst DC3000). Pathogen constructs a type III apparatus to translocate effector proteins into host cells, which have various roles in pathogenesis. 4-Hydroxybenozic acid and vanillic acid were identified from root extract of Sedum middendorffianum to have inhibitory effect on promoter activity of hrpA gene encoding the structural protein of the T3SS apparatus. The... -
In Vitro Wheat Immature Spike Culture Screening Identified Fusarium Head Blight Resistance in Wheat Spike Cultured Derived Variants and in the Progeny of Their Crosses with an Elite Cultivar
Chen Huang, Manu P. Gangola, H. Randy Kutcher, Pierre Hucl, Seedhabadee Ganeshan, Ravindra N. Chibbar 한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 6호 3 558-569 (12 pages)
Fusarium head blight (FHB) is a devastating fungal disease of wheat (Triticum aestivum L.). The lack of genetic resources with stable FHB resistance combined with a reliable and rapid screening method to evaluate FHB resistance is a major limitation to the development of FHB resistant wheat germplasm. The present study utilized an immature wheat spike culture method to screen wheat spike culture derived variants (SCDV) for FHB resistance. Mycotoxin concentrations determined by liquid... -
Contribution of the murI Gene Encoding Glutamate Racemase in the Motility and Virulence of Ralstonia solanacearum
Kihyuck Choi, Geun Ju Son, Shabir Ahmad, Seung Yeup Lee, Hyoung Ju Lee, Seon-Woo Lee 한국식물병리학회 The Plant Pathology Journal 9 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 4호 6 355-363 (9 pages)
strain, indicating that the loss of bacterial motility in the mutant was due to reduced flagella assembly. A dramatic reduction of the mutant population compared to its wild type was apparent in planta (i.e., root) than its wild type but not in soil and rhizosphere. This may contribute to the impaired virulence in the mutant strain. Accordingly, we concluded that murI in R. solanacearum may be involved in controlling flagella assembly and consequently, the mutation affects bacterial motility and... -
Distribution of Pectobacterium Species Isolated in South Korea and Comparison of Temperature Effects on Pathogenicity
Samnyu Jee, Jang-Gyu Choi, Young-Gyu Lee, Min Kwon, Ingyu Hwang, Sunggi Heu 한국식물병리학회 The Plant Pathology Journal 9 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 4호 5 346-354 (9 pages)
Pectobacterium, which causes soft rot disease, is divided into 18 species based on the current classification. A total of 225 Pectobacterium strains were isolated from 10 main cultivation regions of potato (Solanum tuberosum), napa cabbage (Brassica rapa subsp. pekinensis), and radish (Raphanus sativus) in South Korea; 202 iso- lates (90%) were from potato, 18 from napa cabbage, and five from radish. Strains were identified using the Biolog test and phylogenetic analysis. The pathogenicity and... -
Biological Control of Gom-chwi (Ligularia fischeri) Phytophthora Root Rot with Enterobacter asburiae ObRS-5 to Suppress Zoosporangia Formation and Zoospores Germination
Dayeon Kim, Sang Yeob Lee, Seong Ho Ahn, Ji Hee Han, Jin Woo Park 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 3호 5 244-254 (11 pages)
or soil drenching. The ObRS-5 strain was identified as Enterobacter asburiae based on 16S ribosomal RNA gene sequences analysis. The bacterial cells of E. asburiae ObRS-5 significantly suppressed sporangium formation and zoospore germination in P. drechsleri by 87.4% and 66.7%, respectively. In addition, culture filtrate of E. asburiae ObRS-5 also significantly inhibited sporangium formation and zoospore germination by 97.0% and 67.6%, respectively. Soil drenched bacte- rial cells, filtrate, and... -
Bacteriophage Usage for Bacterial Disease Management and Diagnosis in Plants
Nguyen Trung Vu, Chang-Sik Oh 한국식물병리학회 The Plant Pathology Journal 14 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 3호 2 204-217 (14 pages)
In nature, plants are always under the threat of pests and diseases. Pathogenic bacteria are one of the ma- jor pathogen types to cause diseases in diverse plants, resulting in negative effects on plant growth and crop yield. Chemical bactericides and antibiotics have been used as major approaches for controlling bacterial plant diseases in the field or greenhouse. However, the appearance of resistant bacteria to common antibiot- ics and bactericides as well as their potential negative effects... -
A Synergistic Effect of Chitosan and Lactic Acid Bacteria on the Control of Cruciferous Vegetable Diseases
Yu-Chen Lin, Kuang-Ren Chung, Jenn-Wen Huang 한국식물병리학회 The Plant Pathology Journal 13 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 2호 5 157-169 (13 pages)
Two lactic acid bacteria (LAB) designated J02 and J13 were recovered from fermented vegetables based on their ability to suppress soft rot disease caused by Pectobacterium carotovorum subsp. carotovorum (Pcc) on radish. J02 and J13 were identified as Lactobacillus pentosus and Leuconostoc fallax, respectively. The abil- ity of J02 and J13 to suppress plant diseases is highly dependent on chitosan. LAB alone has no effect and chitosan alone has only a moderate effect on disease reduction.... -
IsIsolation and Characterization of Airborne Mushroom Damaging Trichoderma spp. from Indoor Air of Cultivation Houses Used for Oak Wood Mushroom Production Using Sawdust Mediaolation and Characterization of Airborne Mushroom Damaging Trichoderma spp. from
Jun Young Kim, Hyuk Woo Kwon, Dong Hyeung Lee, Han Kyu Ko, Seong Hwan Kim 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2019, 35권 6호 13 674-683 (10 pages)
Some species of the Trichoderma genus are reported as the major problem in oak wood mushroom production in Korea. In spite of economic loss by the fungi, scientific information on airborne Trichoderma species is not much available. To generate information for disease management development we analyzed airborne Trichoderma. A total of 1,063 fungal isolates were purely obtained from indoor air sampling of cultivation houses used for oak wood mushroom using sawdust media. Among the obtained... -
Biocontrol of Citrus Canker Disease Caused by Xanthomonas citri subsp. citri Using an Endophytic Bacillus thuringiensis
Nurul Islam, Sarafat Ali, Seong-Jin Choi, Jae-Wook Hyun, Kwang-Hyun Baek 한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2019, 35권 5호 9 486-497 (12 pages)
Citrus canker is a devastating disease of citrus caused by Xanthomonas citri subsp. citri (Xcc). A total of 134 endophytic bacteria were isolated from various gymnospermic and angiospermic plants. They were screened for their antagonistic activities against three wild-type and six streptomycin-resistant Xcc strains. TbL-22 and TbL-26, both later identified as Bacillus thuringiensis, inhibited all the wild and resistant Xcc strains. TbL-22 exerted the highest antagonistic activity against XccW3... -
Stress Tolerance and Virulence-Related Roles of Lipopolysaccharide in Burkholderia glumae
Chaeyeong Lee, Mohamed Mannaa, Namgyu Kim, Juyun Kim, Yeounju Choi, Soo Hyun Kim, Boknam Jung, Hyun-Hee Lee, Jungkwan Lee, Young-Su Seo 한국식물병리학회 The Plant Pathology Journal 14 Pages
한국식물병리학회 The Plant Pathology Journal 2019, 35권 5호 6 445-458 (14 pages)
The lipopolysaccharide (LPS) composed of lipid A, core, and O-antigen is the fundamental constituent of the outer membrane in gram-negative bacteria. This study was conducted to investigate the roles of LPS in Burkholderia glumae, the phytopathogen causing bacterial panicle blight and seedling rot in rice. To study the roles of the core oligosaccharide (OS) and the Oantigen region, mutant strains targeting the waaC and the wbiFGHI genes were generated. The LPS profile was greatly affected by...
