http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 유강선 (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
-
배추흰나비 과립병(顆粒病)바이러스 감염조직(感染組職)에서의 바이러스 성숙(成熟)
유강선,강석권,Ryu, Kang-Sun,Kang, Seok-Kwon 한국현미경학회 1991 Applied microscopy Vol.21 No.1
The virus maturation in fat body cells infected with P. rapae granulosis virus were also examined to have the following results. Thin section of P. rapae GV granules showed a regular lattice of the granule enclosing virus particles. Virus particles were observed to penetrate the fat body cells by fusion or viropexis type. The blood and fat body cells uptaked the granulosis viruses a phagosome, in which they were digested by lysosomal enzymes.
-
유강선,Tohru Nakada 한국잠사학회 1993 한국잠사곤충학회지 Vol.35 No.2
누에의 실용품종은 모두 일대교잡종을 이용하고 있어 교잡종제조과정에는 씨고치의 암수감별이 필수적인 작업과정이다. 번데기의 암수감별 수단으로는 번데기의 비중, 번데기 무게, 고치무게 등에 의해 많은 연구가 되어 왔지만 아직 미흡한 점이 많아 본 시험에서는 화상처리장치에 의한 고치모양과 고치무게 등에 의하여 여러가지 조합으로 번데기 암수판별 효과를 분석한 결과는 다음과 같다. 1. 측정된 데이터의 암수간 차의 평균에 있어서는 번데기무게, 견층종, 장경, 단경, 면적, 체적, 전견중, 장폭비율 등은 암이 크지만, 견층비율만은 수가 높게 나타났다. 2. 조사변량 단독에 의한 암수판별효과는 번데기 무게, 전견중, 견층비율, 체적, 면적, 견층중, 단경, 장경 순이었으며, 암수판별정도는 번데기무게가 97%, 전견중 96%로 매우 높게 나타났다. 3. 고치모양에 관계되는 변수만에 의한 암수판별효과는 품종에 따라서는 84%의 암수분리효율을 보였으나 전체평균 78%로 매우 저조하였다. 4. 번데기무게, 견층중, 전견중 및 견충비율에 의한 암수판별효율은 약 99%로 매우 높았으나 누에고치를 절개해야하는 문제가 남아있다. 5. 견종과 고치모양에 의한 시험에서는 전체평균 판별율이 98.7%로 견중에 관계하는 변수에 의한 것 보다는 판별정도가 낮지만, 전견중의 단독변수에 의한 것보다는 2.7%가 향상되었다. 6. 판별함수를 설정하는데에 최소유효샘플링수는 암수 각 15개씩 이상이면 충분한 것으로 분석되었다. To produce F1 hybrid of silkworm sex discrimination has to be followed at the pupal stage by sexual organ. However it requires a lot of labour and may bring about a wrong classification. In these regards, this study has been implemented to find out an effective measure for the pupal sex discrimination by use of variation of cocoon weight and image analysis of cocoon. As a result, it was found that in case of the pupal weight the percentage of a wrong classification fell on 0.3% and in case of single cocoon weight 0.4%. The discrimination rate was 99% in the weight variables of cocoon but analysis by single cocoon weight and cocoon shape variables, it was 98.7%. Efficiency of discrimination was increased by 2.7% as compared to variable of single cocoon weight. The minimum cocoon sampling size may be 15 cocoons sexual-wise.
-
柳江善,姜錫權,金槿榮,朴鎬用 서울大學校農科大學 1984 서울대농학연구지 Vol.9 No.1
The study has been carried out to obtain some basic informations on viral pesticide development in the fall webworm, Hyphantria cunea. The nuclear polyhedrosis virus was isolated from infected larvae in the fields. Also made were the histopathological observations with the fat body cells of larvae infected with NPV by using electron microscope and pathogenecity tests for the above viral disease. The results are as follows: 1. The shapes of nuclear polyhedra were triangular, tetragonal and hexagonal with their sizes being 1.75㎛, 1.62㎛ and 2.25㎛, respectively. 2. The maturation sequence in the fat body cells infected with NPV was observed as follows; 1) nucleocapsid protruding irregularly from virogenic stroma. 2) regular stacking array of 2-144 nucleocapsids, 3) random release of nucleocapsids from the cluster, 4) envelopement of nucleocapsids. 5) attachment of polyhedral protein with outer membrane of the enveloped nucleocapsids, and 6) the number of nucleocapsids as bundles in a envelope were 2 to 17 rods. 3. In the virulence of the nuclear polyhedrosis virus, median lethal dose (LD??) values were 1.90×10??, 1.20×10?? and 1.85×10?? PIBs/ml for the third, fourth and fifth instar larvae of H. cunea, respectively. 4. Median lethal time (LT??) values were 9.33, 11.29 and 16.5 days for the third, fourth and fifth instar larvae of H. cunea respectively at the level of 6.8×10??PIBs/ml
-
姜錫權,柳江善,金槿榮,朴鎬用 서울大學校農科大學 1984 서울대농학연구지 Vol.9 No.1
The study has been carried out to investigate possibilities to control the insect pests through microbial pathogens as one of the biological measures. The granulosis virus was isolated and identified from the larvae of the fall webworm, Hyphantria cunea in the mulberry field. The experiments were conducted on histopathological observations with electron microscope in fat-body cells of the larvae infected with granulosis virus and pathogenecity tests were also carried out for the above viral disease. The results are as follows; 1. The purification pattern of GV capsules in the sucrose density gradient centrifugation showed sharp symmetrical peak with lacking a shoulder, indicating that there were no heterogenous materials in the preparations. 2. Purified capsules of granulosis virus were mostly oval glove-shape as usual. However, some abnormal shapes with longer oval glove were also observed during the study. The normal capsule and rod-shaped virus particle were measured about 350-460 x 200-250nm and 300-325x 50-75nm size respectively. 3. Based on the observations on the sequence of maturation process in the GV-infected fat body cells, the maturation stage of virus may be suggested as follows: 1) appearance virogenic stroma in the cytoplasm, 2) appearance nucleocapsid in virogenic stroma, 3) envelopment of nucleocapsid, 4) encapsulation 5) and completion of inclusion body. 4. Various abnormal shapes such as longer, ruptured, empty capsules and 2-3 nucleocapsids in a capsule were observed. 5. In the fat body cells simultaneously infected with NPV and GV, the former virus in the nucleus and the latter in the cytoplasm were mutiplicated respectively. 6. Median lethal dose (??) value was ?? times diluted solution of original mixture for the third instar larvae of H. cunea to the granulosis virus. Median lethal time (??) value was 10.73 days at the level of 10²times diluted solution.
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
