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Fruit Wall Anatomy of Ocotea (Lauraceae)
허권,Heo, Kweon 한국자원식물학회 1996 한국자원식물학회지 Vol.9 No.3
The fruit wall anatomy of Ocotea was investigated on the basis of 14 species within the genus to contribute to a better understanding of specific relationships and homogeneity of genus. The species have a similar mature fruit wall structure, but diUerences among the species are found with respect to whether or not sdc.nchyma cells are present in the mesocarp. if present, whether or not they are present in particular positions and forms. Comparisons with species studied suggested that at least a few groups of species can be distinguished in Ocotea. They arc divided into five groups on the basis of anatomical structures. i.e., group 1) O. atrriensis, O. cujumari, O. helicterifolia, O. rubra and O. schomburgkiana; group 2) O. aeiphylla, O. javitensis, and O. sp. [Werff et ai. 12676]; group 3) O. tonduzii: group 4) O. foetens, O. quixos, and O. veraguensis; and group 5) O. floribunda and O. nitida. These various variations in Ocntea were also discussed to invite its respective systematic revisions. By the comparisons with species, on the other hand, it suggested that the specialized species are evolved from non-specialized species.
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간접형광항체법을 이용한 국내 젖소의 Neospora caninum에 대한 혈청역학적 연구
허권,김재훈,황우석,황의경,진영화,이병천,배지선,강영배,야마네 이츠로,김대용,Hur, Kwon,Kim, Jae-hoon,Hwang, Woo-suk,Hwang, Eui-kyung,Jean, Young-hwa,Lee, Byung-chun,Bae, Ji-seon,Kang, Yung-bai,Yamane, Itsuro,Kim, Dae-yong 대한수의학회 1998 대한수의학회지 Vol.38 No.4
This study was carried out to investigate the prevalence of Neopsora (N) caninum infection in Korean dairy herds. To determine the prevalence of antibodies to N caninum in Korean dairy cattle, a total of 1,688 sera including 895 sera taken from 30 herds having recent high abortion rate and 793 sera selected randomly from 168 herds with no history of recent abortion problem, respectively, collected nationwide during a designated period were analyzed by indirect fluorescent antibody (IFA) test. Mean nationwide seropositive rate of the sera tested in herds and individual cattle tested were 53.5% and 35.6%, respectively. However mean seropositive rate of the samples from herds having abortion problem was approximately two and half times higher than those in herds with no recent abortion history. Regional seropositive rates of the samples from the herds with abortion problem were 48.6%, 51.6%, 44.4% and 71.4% at Kyunggi, Kangwon, Kyungbuk and Jeonnam province, respetively. Regional seropositive rates of the samples from the herds with no recent abortion problem were 35.6%, 18.3%, 16.5%, 37.5%, 19.4%, 33.3%, 32.1%, 3.8% and 0.0% at Kyunggi, Kangwon, Chungbuk, Chungnam, Kyungbuk, Kyungnam, Jeonbuk, Jeonnam and Jeju province, respectively. The results of this study suggested that N caninum infection was widespread and considerably associated with bovine abortion in Korea.
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