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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)
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... -
Biocontrol of Late Blight (Phytophthora capsici) Disease and Growth Promotion of Pepper by Burkholderia cepacia MPC-7
한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2013, 29권 1호 8 67-76 (10 pages)
A chitinolytic bacterial strain having strong antifungal activity was isolated and identified as Burkholderia cepacia MPC-7 based on 16S rRNA gene analysis. MPC- 7 solubilized insoluble phosphorous in hydroxyapatite agar media. It produced gluconic acid and 2-ketogluconic acid related to the decrease in pH of broth culture. The antagonist produced benzoic acid (BA) and phenylacetic acid (PA). The authentic compounds, BA and PA, showed a broad spectrum of antimicrobial activity against yeast,... -
Insight Into Genes Involved in the Production of Extracellular Chitinase in a Biocontrol Bacterium Lysobacter enzymogenes C-3
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2012, 28권 4호 13 439-445 (7 pages)
to that of the wild-type. The growth of the mutants in nutrient rich conditions containing chitin was similar with that of the wild-type. However, growth of the speD and gluP mutants was defective in chitin minimal medium, but was observed no growth retardation in the clp and dsbB mutant on chitin minimal medium. In this study, we identified the four genes might be involved and play different role in the production of extracellular chitinase and antifungal activity in L. enzymogenes C-3. -
Isolation and Identification of Burkholderia pyrrocinia CH-67 to Control Tomato Leaf Mold and Damping-off on Crisphead Lettuce and Tomato
한국식물병리학회 The Plant Pathology Journal 9 Pages
한국식물병리학회 The Plant Pathology Journal 2011, 27권 1호 10 59-67 (9 pages)
by a chitin-baiting method. This strain was identified as Burkholderia cepacia complex (Bcc) and belonging to genomovar IX (Burkholderia pyrrocinia) by colony morphology, biochemical traits and molecular method like 16S rRNA and recA gene analysis. This strain was used to develop a bio-fungicide for the control of tomato leaf mold caused by Fulvia fulva. Various formulations of B. pyrrocinia CH-67 were prepared using fermentation cultures of the bacterium in rice oil medium. The result of pot... -
Production of a Phytotoxic Compound, 3-Phenylpropionic Acid by a Bacterial Endophyte, Arthrobacter humicola YC6002 Isolated from the Root of Zoysia japonica
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 3호 6 245-252 (8 pages)
An endophytic bacterial strain, Arthrobacter humicola YC6002, was isolated from a surface sterilized root of Korean turf grass (Zoysia japonica) collected from Jinju, Korea. This strain showed inhibitory effect on germination and shoot growth of radish. The inhibition of germination and shoot growth of radish seeds varied depending on the age of culture and the temperature at which it was incubated. The culture filtrate of 1/10- strength Tryptic Soy Broth medium, incubated for 48 hours at 30 -
키틴분해세균의 현장 대량 배양방법을 이용한 효과적인 식물병의 생물적 방제 전략
김영철, 강범용, 김용환, 박서기 한국식물병리학회 식물병연구 16 Pages
한국식물병리학회 식물병연구 2017, 23권 1호 2 19-34 (16 pages)
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A review: synthesis and applications of graphene/chitosan nanocomposites
Hui Yuan, Long-Yue Meng, Soo-Jin Park 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 2 11-17 (7 pages)
Recently, with continuous developments in the field of materials science, graphene oxide (GO) has emerged as a promising material with excellent electrical, thermal, mechanical, and optical properties, which play important roles in most fields. Researchers have achieved considerable progress with graphene. Chitosan (CS) is a natural polymer that has been studied intensively owing to its specific formation, high chemical resistance, and excellent physical properties. These outstanding properties... -
Chitinase를 생산하는 길항미생물 Serratia sp. 3095의 선발과 Fusarium 속에 대한 항진균성
이은탁, 김상달, Lee. Eun-Tag, Kim. Sang-Dal 한국응용생명화학회 한국농화학회지 7 Pages
한국응용생명화학회 한국농화학회지 1999, Vol.42 No.3 181-187 (7 pages)
이 균주가 생성하는 chitinase의 생성조건을 조사한 결과 탄소원으로 colloidal chitin이 가장 좋았으며 그 최적 농도는 0.15%이었고, glucose에 의해 chitinase 생산 유도를 억제받는 효소임을 알 수 있었다. 질소원에 의한 영향은 $(NH_4)_2SO_4,;(NH_4)Cl$, peptone 등에 의해 chitinase 생산성이 증가되었고, $(NH_4)_2SO_4$와 peptone을 각각 0.1%씩 첨가하였을 때 chitinase 생산이 가장 좋았다. 또한 시드름병균 Fusarium oxysporum을 대상으로 in vitro, in vivo pot 실험을 통해 Serratia sp. 3095의 강한 방제력을 검증할 수... -
식물(植物) 병원류(病源惟) 사상균(絲狀菌)에 길항력(拮抗力)을 갖는 Serratia marcescens CK-3의 분리(分離) 및 효소적(酵素的) 성질(性質)
김영일, 이영환, 김광식, 박화성, 전우복, 이재화, 김종현, Kim. Yeong-Yil, Rhee. Young-Hwan, Kim. Kwang-Sik, Park. Hwa-Sung, Chun. Woo-Bock, Lee. Jae-Wha, Kim. Jong- 한국응용생명화학회 한국농화학회지 7 Pages
한국응용생명화학회 한국농화학회지 1991, Vol.34 No.1 54-60 (7 pages)
식물 병원성 사상균 세포벽의 주성분인 chitin을 분해하는 미생물을 토양에서 분리, 선발하여 동정하고 이들의 효소적 성질을 조사하였다. 선발균 Serratia (S) marcescens는 식물 병원성 사상균인 Fusarium (F) axysporum과 Rhizoctomia (R) solani에 대해 길항력은 갖고 있었으며 효소적으로 chitinase 외에 laminarinase 및 protease 등의 활성을 가지고 있었다. 선발 균주의 chitinase 생산 최적조건은 chitin broth 기본배지의 조성과 온도 및 배양시간을 변형하여 조사한 결과 colloidal chitin 1.5%, tryptone 0.5%, glucose 1%,...
