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Effective Production of Chitinase and Chitosanase by Streptomyces griseus HUT 6037 Using Colloidal Chitin and Various Degrees of Deacetylation of Chitosan
Jung. Ho-Sup, Son. Jeong-Woo, Ji. Hong-Seok, Kim. Kwang 한국생물공학회 Biotechnology and bioprocess engineering 6 Pages
한국생물공학회 Biotechnology and bioprocess engineering 1999, Vol.4 No.1 26-31 (6 pages)
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Colloidal Chitin을 자화하는 해양세균으로부터 적색색소의 생산
류병호, 김민정 한국미생물생명공학회 산업미생물학회지 6 Pages
한국미생물생명공학회 산업미생물학회지 2000, Vol.28 No.5 264-269 (6 pages)
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새우젓으로부터 혈전과 chitin 분해능을 지닌 균주 Bacillus licheniformis SC082의 분리 및 특성
조은경, 정유정, 갈상완, 최영주, Cho. Eun-Kyung, Jung. Yu-Jung, Gal. Sang-Wan, Choi. Young-Ju 한국생명과학회 생명과학회지 8 Pages
한국생명과학회 생명과학회지 2009, Vol.19 No.10 1424-1431 (8 pages)
전통발효식품인 새우젓으로부터 혈전과 chitin 분해력이 우수한 균을 분리하였으며 16S rRNA 염기서열 분석으로 B. licheniformis와 가장 유사한 균주임을 확인하였다. 이 균주를 B. licheniformis SC082로 명명하였고, 최적 생육조건은 $37^{circ}C$, pH 7.0, 염 농도 6%로 확인되었다. 이 균주의 기질특이성을 조사한 결과, 우수한 혈전분해력을 나타냈으며 1% 농도의 colloidal chitin의 첨가에 의하여 chitinase 활성이 증가됨을 관찰할 수 있었다. 또한 지질 분해능은 없었고 약한 skim milk 분해력을 가지고 있었다. SDS-PAGE와... -
전통발효식품으로부터 Chitin 분해 미생물의 분리 및 특성 규명
고보경, 최인순, 이상현, 임채오, 이성호, 갈상완, 최영주 한국생명과학회 생명과학회지 8 Pages
한국생명과학회 생명과학회지 2004, Vol.14 No.3 501-508 (8 pages)
CJ-3 균주는 16S rDNA 염기서열분석에 의하여 Bacillus atrophaeus로 동정되었으며 분리된 균주의 분자량은 대략 31.0 kDa으로 colloidal chitin(0.5, 1.0, 2.0%)의 첨가에 의하여 chitinase 활성이 현저히 증가되었다 B. atrophaeus CJ-3에 의해서 유도되는 갈변반응물 200${mu}ell$ 첨가로 LPS에 의하여 유도되는 nitric oxide (NO) 활성을 45%까지 감소시켰다. MTT 분석을 통한 세포활성에서도 갈변반응물은 LPS에 의하여 세포활성을 정상수준으로 회복하였다. CJ-3. 균주의 DPPH 전자공여능법에 의한 항산화력은 갈변반응에 의하여 약... -
Overcoming Encouragement of Dragon Fruit Plant (Hylocereus undatus) against Stem Brown Spot Disease Caused by Neoscytalidium dimidiatum Using Bacillus subtilis Combined with Sodium Bicarbonate
Sanan Ratanaprom, Korakot Nakkanong, Charassri Nualsri, Palakrit Jiwanit, Thanyakorn Rongsawat, Natthakorn Woraathakorn 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 3호 1 205-214 (10 pages)
The use of the supernatant from a Bacillus subtilis culture mixed with sodium bicarbonate was explored as a means of controlling stem brown spot disease in dragon fruit plants. In in vitro experiments, the B. subtilis supernatant used with sodium bicarbonate showed a strong inhibition effect on the growth of the fungus, Neoscytalidium dimidiatum, the agent causing stem brown spot disease and was notably effective in preventing fungal invasion of dragon fruit plant. This combination not only... -
Enhanced Tolerance of Chinese Cabbage Seedlings Mediated by Bacillus aryabhattai H26-2 and B. siamensis H30-3 against High Temperature Stress and Fungal Infections
Young Hee Lee, Su Jeong Jang, Joon-Hee Han, Jin Su Bae, Hyun-suk Shin, Hee Jin Park, Mee Kyung Sang, Song Hee Han, Kyoung Su Kim, Sang-W 한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2018, 34권 6호 10 555-566 (12 pages)
Two rhizobacteria Bacillus aryabhattai H26-2 and B. siamensis H30-3 were evaluated whether they are involved in stress tolerance against drought and high temperature as well as fungal infections in Chinese cabbage plants. Chinese cabbage seedlings cv. Ryeokgwang (spring cultivar) has shown better growth compared to cv. Buram-3-ho (autumn cultivar) under high temperature conditions in a greenhouse, whilst there was no difference in drought stress tolerance of the two cultivars. In vitro growth of... -
Purification and Characterization of a Major Extracellular Chitinase from a Biocontrol Bacterium, Paenibacillus elgii HOA73
한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2017, 33권 3호 10 318-328 (11 pages)
a chitin-binding domain, two fibronectin type III domains, and a catalytic hydrolase domain. The chitinase (PeChi68) purified from recombinant E. coli exhibited a molecular mass of approximately 68 kDa on SDS-PAGE. Biochemical analysis indicated that optimum temperature for the actitvity of purified chitinase was 50ºC. However, it was inactivated with time when it was incubated at 40ºC and 50ºC. Its optimum activity was found at pH 7, although its activity was stable... -
Biological Control of Bacterial Fruit Blotch of Watermelon Pathogen (Acidovorax citrulli) with Rhizosphere Associated Bacteria
한국식물병리학회 The Plant Pathology Journal 14 Pages
한국식물병리학회 The Plant Pathology Journal 2017, 33권 2호 9 170-183 (14 pages)
Bacterial fruit blotch (BFB), which is caused by Acidovorax citrulli, is a serious threat to watermelon growers around the world. The present study was conducted to screen effective rhizobacterial isolates against 35 different A. citrulli isolates and determine their efficacy on BFB and growth parameters of watermelon. Two rhizobacterial isolates viz. Paenibacillus polymyxa (SN-22), Sinomonas atrocyanea (NSB-27) showed high inhibitory activity in the preliminary screening and were further... -
Biological Control of Apple Anthracnose by Paenibacillus polymyxa APEC128, an Antagonistic Rhizobacterium
한국식물병리학회 The Plant Pathology Journal 9 Pages
한국식물병리학회 The Plant Pathology Journal 2016, 32권 3호 9 251-259 (9 pages)
The present study investigated the suppression of the disease development of anthracnose caused by Colletotrichum gloeosporioides and C. acutatum in harvested apples using an antagonistic rhizobacterium Paenibacillus polymyxa APEC128 (APEC128). Out of 30 bacterial isolates from apple rhizosphere screened for antagonistic activity, the most effective strain was APEC128 as inferred from the size of the inhibition zone. This strain showed a greater growth in brain-heart infusion (BHI) broth... -
Antagonistic Potential of Native Trichoderma viride Strain against Potent Tea Fungal Pathogens in North East India
한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2015, 31권 3호 9 278-289 (12 pages)
Indigenous strains of Trichoderma species isolated from rhizosphere soils of Tea gardens of Assam, north eastern state of India were assessed for in vitro antagonism against two important tea fungal pathogens namely Pestalotia theae and Fusarium solani. A potent antagonist against both tea pathogenic fungi, designated as SDRLIN1, was selected and identified as Trichoderma viride. The strain also showed substantial antifungal activity against five standard phytopathogenic fungi. Culture filtrate... -
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%,...
