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항 Pseudomonas tolaasii 및 Pseudomonas agarici 항체의 면역측정법을 위한 평가와 그 이용
전낙범,이향범,손동화,유승헌,Jeon, Nak-Beom,Lee, Hyang-Burm,Shon, Dong-Hwa,Yu, Seung Hun 한국식물병리학회 2003 식물병연구 Vol.9 No.2
느타리버섯에 발생하여 갈색부패병을 일으키는 P. tolaasii 및 P.agarici 를 면역화학적 방법으로 신속하게 검출하기 위한 항체를 생산하였고 면역확산법과 ELISA 로 본 항체의 특이성을 조사하였다. $\alpha$-P tolaasii 항체는 P. tolaasii와 반응하여 선명한 침강선을 형성하지 않아 P. tolaasii 에 대하여만 특이적으로 반응하는 항체임을 알 수 있었다. 한편 $\alpha$-P. agarici 항체는 P.agarici뿐만 아니라 다른 세균에 대해서도 침강선을 형성하지 않는 특징을 나타내었다. 비경합 간접 ELISA의 표준곡선으로부터 P.agarici의 검출에 대하여 최고 발색치의 50% 갑을 나타내는 균의 밀도는 $2{\times}10^4$ cfu/ml로 나타났으며, 검출한계농도는 $2{\times}10^3$ cfu/ml 이었다.${\alpha}$-P. agarici 항체는 P. tolaasii의 특이적인 검출에도 효과를 나타냈다. ${\alpha}$-P. tolaasii, ${\alpha}$-P. agarici 항체를 이용하여 확립한 ELISA법은 직접 균체나 버섯 자실체내 P. tolaasii 와 P. agarici의 신속한 검출을 가능하게 하였고, P. tolaasii 와 P. agarici에 오염된 시료를 간단하게 진단하는데 아주 유용하게 사용될 수 있을 것으로 판단되었다. To produce antibodies against Pseudomonas tolaasii and P. agarici, lyophilized P. tolaasii and P. agarici ($5{\times}10^7$ cfu/ml) and Freund, s adjuvant were immunized into rabbits 4 times. The specificity and sensitivity of the antibodies were evaluated by immunodiffusion test and indirect enzyme-linked immunosorbent assay (id ELISA). The ${\alpha}$-P. tolaasii antibody was very specific only against P. tolaasii, while ${\alpha}$-P. agarici antibody was not specific and showed a high cross reactivity toward P. tolaasii with detection limit concentration of $2{\times}10^3$ cfu/ml. However, the cross reactivities of ${\alpha}$-P. agarici antibody toward the related species including P. reactans were very low. Our results showed that ${\alpha}$-P. tolaasii and ${\alpha}$-P. agarici antibodies against P. tolaasii and P. agarici, respectively, might be useful for rapid and simple detection of the causal agents of bacterial brown and yellow blotches in cultivated oyster mushrooms.
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버섯 세균성회색무늬병균 (Pseudomonas agarici) 에 대한 항균활성을 가지는 Bacillus safensis HC42
이찬중,공원식,이은지,박혜성 한국버섯학회 2019 한국버섯학회지 Vol.17 No.1
A gram-positive bacterium was isolated from the spent substrate of Agaricus bisporus that showed a marked antagonistic activity against Pseudomonas agarici. It was identified as Bacillus safensis HC42 based on its cultural, biochemical, and physiological characteristics, and 16S rRNA sequence. B. safensis HC42 was saprophytic, but not parasitic or pathogenic, in cultivated mushrooms and showed strong inhibition of P. agarici in vitro. Moreover, it showed a control efficacy of 66 % against browning disease caused by P. agarici in Agaricus bisporus. Therefore, B. safensis HC42 may be useful in the future for the development of a biocontrol system.
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버섯 세균성회색무늬병균(Pseudomonas agarici)에 대한 길항 세균 Alcaligenes sp. HC12의 대량배양을 위한 최적 배양조건
이찬중,문지원,정종천 한국버섯학회 2016 한국버섯학회지 Vol.14 No.4
This study was conducted to investigate optimum conditions for mass production of ntagonistic microbes Alcaligenes sp. HC12. Alcaligenes sp. HC12 had a potent biological control agent to control browning disease caused by Pseudomonas agarici. Alcaligenes sp. HC12 markedly showed the antagonistic activity against Pseudomonas agarici, the most destructive pathogen of cultivated mushrooms. To define the optimum conditions for the mass production of the Alcaligenes sp. HC12, we have investigated optimum culture conditions and effects of various nutrient source on the bacterial growth. The optimum initial pH and temperature were determined as pH 9.0 and 30o, respectively. The optimal concentration of medium elements for the growth of pathogen inhibitor bacterium(Alcaligenes sp. HC12) was determined as follows: 0.5% dextrine, 1.5% yest extract, 1.0% NaNO3, 0.5% KH2PO4, and 1.5% asparagine.
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버섯 세균성회색무늬병균(Pseudomonas agarici)에 대한 Alcaligenes sp. HC12의 항균활성
이찬중 ( Chan-jung Lee ),문지원 ( Ji-won Moon ),정종천 ( Jong-chun Cheong ),공원식 ( Won-sik Kong ) 한국균학회 2016 韓國菌學會誌 Vol.44 No.3
A gram-negative bacterium was isolated from spent substrates of Agaricus bisporus and showed significant antagonistic activity against Pseudomonas agarici. The bacterium was identified as Alcaligenes sp. based on cultural, biochemical, physiological characteristics and a 16S rRNA sequence analysis. The isolate is saprophytic, but not parasitic or pathogenic on cultivated mushroom, whereas it showed strong inhibitory effects against P. agarici cells in vitro. The control efficacy of Alcaligenes sp. HC12 against brown blotch of P. agarici was up to 63% on Agaricus bisporus. The suppressive bacterium may be useful for the development of biocontrol systems.
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