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      • KCI등재

        Taxonomic Review of the family Platygastridae (Hymenoptera:Platygastroidea) from the Korean Peninsula

        Peter Neerup Buhl,June-Yeol Choi 한국응용곤충학회 2006 Journal of Asia-Pacific Entomology Vol.9 No.2

        A total of 41 species were investigated, including only one species in the check list of Korean insects, which contains five platygastrids. Eleven species of the family Platygastridae are described as new to science from Korea, viz. Allostemma bicolor Buhl & Choi, Amblyaspis koreana Choi & Buhl, Leptacis koreana Buhl & Choi, L. ocellaris Choi & Buhl, Platygaster ciliata Buhl & Choi, P. flavifemorata Buhl & Choi, P. kui Choi & Buhl, P. tripotini Buhl & Choi, Synopeas collinus Choi & Buhl, S. kimi Choi & Buhl, and S. pumilus Buhl & Choi. Further nineteen species are recorded from The Korean Peninsula for the first time, and some new records are added for eleven species, already known from the Peninsula. Keys are given to the genera and species of Platygastridae hitherto recorded from The Korean Peninsula. As a result, platygastrid fauna of The Korean Peninsula is composed of 68 species up to now.

      • SCIESCOPUSKCI등재

        Taxonomic Review of the family Platygastridae (Hymenoptera: Platygastroidea) from the Korean Peninsula

        Buhl Peter Neerup,Choi June-Yeol Korean Society of Applied Entomology 2006 Journal of Asia-Pacific Entomology Vol.9 No.2

        A total of 41 species were investigated, including only one species in the check list of Korean insects, which contains five platygastrids. Eleven species of the family Platygastridae are described as new to science from Korea, viz. Allostemma bicolor Buhl & Choi, Amblyaspis koreana Choi & Buhl, Leptaeis koreana Buhl & Choi, L. ocellaris Choi & Buhl, Platygaster ciliata Buhl & Choi, P. flavifemorata Buhl & Choi, P. kui Choi & Buhl, P. tripotini Buhl & Choi, Synopeas eollinus Choi & Buhl, S. kimi Choi & Buhl, and S. pumilus Buhl & Choi. Further nineteen species are recorded from The Korean Peninsula for the first time, and some new records are added for eleven species, already known from the Peninsula. Keys are given to the genera and species of Platygastridae hitherto recorded from The Korean Peninsula. As a result, platygastrid fauna of The Korean Peninsula is composed of 68 species up to now.

      • New record of Opisthacantha Ashmead and Tiphodytes Bradley with one new species from Korea (Hymenoptera: Platygastridae)

        June-Yeol Choi 한국응용곤충학회 2015 한국응용곤충학회 학술대회논문집 Vol.2015 No.10

        The former Scelionidae (sensu stricto) is considered to be a part of Platygastridae, recently. During the parasitic wasp collecting with yellow pan trap, aiming at investigating promising biological control agents which attack on plantbug pests for soybean cultivation, one new species and one unrecorded scelionine species were identified. Opisthacantha albertoi sp. n. was collected from central part of korean peninsula. It is very unique by its yellowish body, compared with the black of the most recorded korean scelonine species. It has a long ovipositor which is 1.3 times longer than body length. It was named after the late Dr. S.-B. Ahn, the noctuid specialist. The unrecorded Tiphodytes gerriphagus (Marchal) was famous for its extremely extraordinary habit of diving for Hymenoptera to attack the eggs of gerrid hosts (Gerris, Trepobates spp.). It was collected nationwidely in Korea. As a result, two genera are newly added in korean scelionine fauna and korean Scelioninae is composed of eight species in five genera in total.

      • SCOPUSKCI등재

        Two Unrecorded Species of Proteleas in Teleasinae, an Unrecorded Subfamily from Korea (Hymenoptera:Scelionidae)

        Choi, June-Yeol,Kozlov, Mikhail-A. 한국곤충학회 2001 Entomological Research Vol.31 No.4

        검정알벌과의 분류동정 연구를 통해 한국 미기록아과인 정수리검정알벌아과(신칭, Teleasinae)에 속하는 창살검정알벌(신칭, P. nefrens Kononova)과 이랑검정알벌(신칭, P. sulcatus Kozlov)을 발견하여 한국미기록종으로 보고한다. Two Proteleas species, P. nefrensKononova and P. sulcatus Kozlov, are recorded for the first time in Korea. Teleasinae, which includes these two Proteleas wasps, is also a newly-recorded subfamily in Korea.

      • KCI등재

        초음파를 이용한 정상 태아의 임신 주수에 따른 신체 각 부위의 표준 평균치 측정

        최준식 ( June Seek Choi ),양재혁 ( Jae Hyug Yang ),류현미 ( Hyun Mee Ryu ),김문영 ( Moon Young Kim ),한정열 ( Jung Yeol Han ),안현경 ( Hyun Kyung Ahn ),정상희 ( Sang Hee Jung ),최규홍 ( Kyu Hong Choi ),이지영 ( Jee Young Lee ) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.9

        목적 : 초음파 기기의 발달로 임신 중의 태아 임신 주수에 따른 발육 상태를 태아의 아두 대횡경, 대퇴골 길이, 복부 둘레 등을 측정함으로써 예측할 수 있게 되었다. 그러나 아직 정확한 한국의 태아 신체 각 부분의 평균 표준치가 없다는 것은 빨리 해결해야 할 과제라 생각된다. 따라서 본 연구는 정상 태아의 평균치 및 제태 연령을 예측할 수 있는 회귀 방정식을 구하고자 하였다. 연구 방법 : 1996년 6월부터 1998년 3월까지 삼성제일병원에서 산전 검사를 받은 300명의 산모 중, 태아 성장에 영향을 줄 수 있는 요인을 가진 29명을 제외한 총 271명의 산모를 대상으로 하였다. 이들에서 태아의 전둔장 (CRL), 아두 대횡경 (BPD), 머리 둘레 (HC), 복부 둘레 (AC), 대퇴골 길이 (HL), 경골 길이 (TL)를 측정하였으며, 제태 연령을 예측하는 회귀 방정식은 선형 회귀 분석을 통해 구하였다. 결과 : 임신 11주에서 29주 사이의 태아의 전둔장, 아두 대횡경, 머리 둘레, 복부 둘레, 대퇴골 길이, 경골 길이의 백분율을 산출하였으며, 제태 연령을 예측하는 이차 방정식을 추론하였다. 결론 : 본 연구는 정상 태아의 생체 계측의 평균치 및 백분율을 구하였다. 많은 수의 산모를 전향적으로 측정하였고, 측정자 수를 제한함으로써 계측자간의 오차를 최소화하였다. 또한 한국 태아의 경골의 평균치 및 백분율을 처음으로 산출함으로써 임신 연령 측정에 좀더 정확한 자료를 제시하였다. Objective : The purpose of this study was to assess the mean fetal biometry and to create a formulae for estimation of gestational week using sonographic biometry measurement. Methods : A total 271 women of singleton gestation were involved in this study of ultrasonographic fetal biometry. During the period from June 1996 to March 1998, the length of CRL (Crown Rump Length), BPD (Biparietal Diameter), HC (Head Circumference), AC (Abdominal Circumference), HL (Humerus Length) and TL (Tibia Length) of fetuses in normal pregnancy were measured by ultrasonography at Samsung Cheil Hospital & Women`s Healthcare Center. The gestational age prediction equations were derived form sigletons with the use of liner regression analysis. Results : We present the percentile ranks of fetal CRL, BPD, HC, AC, HL and TL measurement from 11 to 39 week`s gestation and mean value of fetal size at each week. These data were analyzed and several second grade equations were derived from the data. Conclusion : We created these authentic equations and tables for mean value of fetal biometry in normal pregnancy at each gestation week with minimal intervariable errors.

      • Reproduction potential of Riptortus pedestris collected in aggregation pheromone trap and evaluation of their eggs as host resources of egg parasitoids

        Eunmok Kim,June-Yeol Choi,Un Taek Lim 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.10

        Riptortus pedestris (Hemiptera: Alydidae) is known to occur in barley field during spring. But, it is unlikely that R. pedestris can find host resource to reproduce in the spring season. To test this hypothesis, we assessed the reproduction of R. pedestris population collected from field from March to September. Riptortus pedestris were collected at intervals of three days from 15th of each month. Females of R. pedestris collected from trap were provided with just water in a breeding dish, and eggs laid were collected daily. Quality of R. pedestris eggs at each month was also evaluated by providing them as host resource to two egg parasitoids. The collected eggs were divided into three groups and tested for hatchability and parasitism by two egg parasitoids, respectively. As a result, R. pedestris population collected in March and April did not reproduce, and fecundity and proportion of reproduced females were the highest in August. But, neither hatchability nor parasitism rate of R. pedestris eggs show significant difference among the sampling months. In conclusion, R. pedestris starts to reproduce from May, and fecundity reaches highest on August. No change in egg quality was found among the study periods.

      • KCI등재

        Evaluation of nausea and vomiting in pregnancy using the Pregnancy-Unique Quantification of Emesis and Nausea scale in Korea

        ( Hyun Joung Choi ),( Yoon Joo Bae ),( June Seek Choi ),( Hun Kyong Ahn ),( Hyun Sook An ),( Dal Soo Hong ),( Jeong-Sup Yun ),( Jung Yeol Han ) 대한산부인과학회 2018 Obstetrics & Gynecology Science Vol.61 No.1

        Objective Severity of nausea and vomiting of pregnancy (NVP) is associated with adverse pregnancy outcomes and poorer quality of life (QOL). The aim of this study was to evaluate the severity of NVP and maternal well-being status using the Pregnancy-Unique Quantification of Emesis and Nausea (PUQE) scale in a Korean population. Methods A total of 527 pregnant women who were receiving prenatal care at 4 hospitals were asked to participate in the study between January 2015 and June 2015. The severity of NVP was evaluated by the PUQE scale and maternal well-being status was evaluated using the visual analogue scale (VAS). Statistical analyses were performed to determine the risk factors associated with NVP and the associations between the severity of NVP and QOL. Results Among the 472 eligible pregnant women, 381 (80.7%) were suffering from NVP during pregnancy. No significant differences (P>0.05) were observed in any of the variables between the 2 study groups, with the exception of smoking, alcohol consumption, and history of NVP. NVP history was found to be the most powerful risk factor (adjusted odds ratio, 11.6; 95% confidence interval, 4.7-28.7). The correlation coefficient (r) between the VAS scores of maternal well-being status and PUQE severity was -0.25 (r<sup>2</sup>=0.062; P-<0.001). Conclusion In this study, an explicit decline in maternal well-being status was observed according to severity of NVP. The PUQE scale may be of help to clinicians, healthcare providers, and researchers because of its simplicity and usefulness as a tool for NVP evaluation.

      • Inter-Simple Sequence Repeat (ISSR) as a Marker in Local Strain Myzus Persicae (Hemiptera: Aphididae)

        Ju Il Kim,Min Kwon,June Yeol Choi 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.05

        Geographic clines in genetic polymorphisms are widely believed as an evidence of climate change. We hypothesized green peach aphid, Myzus persicae Sulzer, one of the major insect pests in highland chinese cabbage cultivation, may also have some interactions with climate change. As the first step, we tried to find the available markers from six local strains (five collected at different heights in Hoengseong and Pyeongchang area and one from laboratory). A strain from Jeju island was used as an out-group. Although there was no significant difference in sequences of partial ribosomal RNA fragment and mitochondrial cytochrome oxidase I, and esterase isozyme pattern, we found four inter-simple sequence repeat (ISSR) markers in 22 used ISSR primers (+AGA, +CCA, +CGA, CGA+). These primers can be used as good markers to trace the M. persicae gene flow because they showed specific bands according to local strains.

      • Bionomics of Diadromus sp. (Hymenoptera: Ichneumonidae), an internal and solitary pupal parasitoid, and the characteristics of its parasitism on diamondback moth, Plutella xylostella (L.)

        Min Kwon,Ju-Il Kim,June-Yeol Choi,Seung-Hwan Lee 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.05

        Diamondback moth (DBM, Plutella xylostella L.), the most destructive pest of cruciferous crops, is well-known as typical subtropical insect pest. A number of biological agents such as diseases, parasites and predators can affect populations of DBM in the fields negatively. In previous reports, we suggested Cotesia glomerata, Diadegma semiclusum, and Microplitis plutellae as promising natural enemies to DBM control at highland areas, but these species are larval parasitoids. In 2004~2009, we searched highland fields cultivating various cruciferous crops for PUPAL parasitoids which can supplement the unsatisfactory parasitism in the augmentative release of larval parasitoids. We obtained adults of hymenopteran parasitoid from DBM pupae in early July at Hoengseong region (asl 540 m), and then identified as Diadromus sp., although being a critical species so far. This parasitoid showed high rate of parasitism, about 13.2%, in mid October at the same region. Development period from oviposition to emergence of Diadromus sp. ranged from 14 to 18 days under 23℃ condition. Adult longevity, > three weeks, was longer when it was provided with 10% sugar solution as food than with water only or without food. Male adults mated as soon as emerging from parasitized DBM pupae, and laid eggs into DBM pupae for a week. Parasitism by Diadromus sp. was highest on 7th day after emergence. In contrast, lethality of DBM pupae which were not parasitized by wasps showed 60% on average for seven days. Parasitized DBM pupae could be stored at 10℃ for two weeks. The simultaneous augmentative release of larval parasitoids and pupal parasitoids can be an important component to integrated DBM management program in the future.

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