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씨감자에 발생하는 주요 병원균의 비파괴 검사를 위한 시료 제작 방법 개발
김윤석 ( Y. S. Kim ),김상우 ( S. W. Kim ),거비르람살 ( K. Lamsal ),최원기 ( W. K. Choi ),김대용 ( D. Y. Kim ),조병관 ( B. K. Cho ),이윤수 ( Y. S. Lee ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2012 강원 농업생명환경연구 Vol.24 No.2
The experiment was carried out to evaluate the level of infection caused by pathogenic bacteria and fungi before performing non-destructive detection of symptoms on seed potatoes. This study was performed by using four phytopathogens isolates i.e., Pectobacterium atrosepticum, Clavibacter michiganensis subsp. sepedonicus, Rhizoctonia solani and Fusarium sp. received from Korean Agriculture Culture Collection (KACC). The bacterial inocular were prepared with one fold, two folds, four folds and eight folds dilution of P. atrosepticum, C. michiganensis subsp. sepedonicus in the concentrations of 5.0 x 108 cells/mL and 6.2 x 106 cells/mL, respectively. The results showed that the initial disease symptom was observed one day after the inoculation on potato with four fold dilution of P. atrosepticum. In case of C. michiganensis subsp. sepedonicus inoculation, initial disease symptom was occurred five days after one fold dilution inoculation. In fungal pathogen inoculations, the results showed that the initial symptom was observed 14 days after the inoculations. Further experiment will be carried out with one, two, four and eight folds dilution of fungal spore suspensions for the evaluation of initial disease symptom development concentrations. These results would be applied for the non-destructive diagnosis of disease symptoms using Vis/NIR spectrometry.
A Report of Aspergillus niger Isolated from Pectocera fortunei Specimen in Korea
( S. W. Kim ),( K. Lamsal ),( S. Naeimi ),( M. Adhikari ),( D. R. Yadav ),( Y. S. Lee ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2014 강원 농업생명환경연구 Vol.26 No.3
A new species of Aspergillus niger (KNU12-3-3) has been isolated from insect specimen in Korea. This strain was isolated from Pectocera fortunei. The identification was based on the morphological characteristics and ITS analysis. This is the first report of a new species of A. niger isolated from insects in Korea.
Banik Sujoy,Rath Girija P,Lamsal Ritesh,Bithal Parmod K 대한마취통증의학회 2020 Korean Journal of Anesthesiology Vol.73 No.4
Background: There are conflicting opinions on the effect of dexmedetomidine on cerebral autoregulation. This study assessed its effect on dynamic cerebral autoregulation (dCA) using a transcranial Doppler (TCD). Methods: Thirty American Society of Anesthesiologists physical status I and II patients between 18 and 60 years, who underwent lumbar spine surgery, received infusions of dexmedetomidine (Group D) or normal saline (Group C), followed by anesthesia with propofol and fentanyl, and maintenance with oxygen, nitrous oxide and sevoflurane. After five minutes of normocapnic ventilation and stable bispectral index value (BIS) of 40–50, the right middle cerebral artery flow velocity (MCAFV) was recorded with TCD. The transient hyperemic response (THR) test was performed by compressing the right common carotid artery for 5–7 seconds. The lungs were hyperventilated to test carbon dioxide (CO2) reactivity. Hemodynamic parameters, arterial CO2 tension, pulse oximetry (SpO2), MCAFV and BIS were measured before and after hyperventilation. Dexmedetomidine infusion was discontinued ten minutes before skin-closure. Time to recovery and extubation, modified Aldrete score, and emergence agitation were recorded. Results: Demographic parameters, durations of surgery and anesthesia, THR ratio (Group D: 1.26 ± 0.11 vs. Group C: 1.23 ± 0.04; P = 0.357), relative CO2 reactivity (Group D: 1.19 ± 0.34 %/mmHg vs. Group C: 1.23 ± 0.25 %/mmHg; P = 0.547), blood pressure, SpO2, BIS, MCAFV, time to recovery, time to extubation and modified Aldrete scores were comparable. Conclusions: Dexmedetomidine administration does not impair dCA and CO2 reactivity in patients undergoing spine surgery under sevoflurane anesthesia.
Effect of Chitosan Coated Fungicide Against Colletotrichumgloeosporioides and Powdery Mildew
( J. H. Jung ),( S. W. Kim ),( K. Lamsal ),( Y. S. Kim ),( H. J. Park ),( Y. S. Lee ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2011 강원 농업생명환경연구 Vol.23 No.2
Studies were conducted with chitosan-coated fungicide to find out inhibition effect against C. gloeosporioides and powdery mildews of cucumber. The inhibition effect of chitosan coated fungicide was evaluated in in vitro condition against C. gloeosporioides and the inhibition effect was evaluated against powdery mildews in field condition. Chitosan coated fungicides were provided from Korea University, Seoul. Chitosan coated fungicide Difenoconazole (3,000Da.?0.3%,W/V, 30,000Da.?1%,W/V) was applied to powdery mildews of cucumber, and Tebuconazole (3,000Da.?0.3%,W/V, 30,000Da.?0.1%,W/V) was applied to pepper anthracnise C. gloeosporioides in in vitro test at the concentration of 1,000 and 1,500 folds. After the treatment of each different fungicides, hyphae of each pathogen was observed by using SEM in the different time intervals of 1, 3, 5, 10, and 15 days after the treatment. The result showed that the coating fungicides have inhibition effect against the hyphae growth of these pathogens.