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상백피 품종에 따른 ${\gamma}$-Aminnobutyric acid 함량 비교
방혜선,이완주 한국잠사학회 1998 한국잠사곤충학회지 Vol.40 No.1
From mulberry root bark of 13 various varieties, ${\gamma}$-Aminnobutyric acid(GABA) contents were examined on HPLC analyzer. GABA contents in mulberry root bark were affected by genotypes. Average GABA content of the 13 mulberry varieties was 2.19 mg/gDW. GABA content of the varieties ranged from 1.70 to 2.62 mg/gDW. Among the three genotypes, GABA content of the Morus Lhou was higher than the other genotype. In GABA content Hongolppong was the highest with 2.62 mg/gDW on the 13 varieties of mulberry root bark.
초음파 처리 식물체의 배추좀나방 유충에 대한 섭식 저해활성 및 카틴합성 저해활성
방혜선,이완주,황석조,구태원,김선여 한국생명과학회 1999 생명과학회지 Vol.9 No.3
Effects of the ultrasonic treatment on plant represents antifeeding activity and chitin synthesis inhibition activity against diamondback moth (Plutella xylostella L.) by a leaf-dipping method at a concentration of 5,000ppm. Methanol extracts of leaves of the ultrasonic treatment on plant was sequentially partitioned with n-hexane, chloroform, ethlyacetate, butanol and water fractions, and bioassayed. Antifeeding activities were observed in n-hexane, chloroform and ethlyacetate fractions. N-hexane fraction has 94.6% of strongest antifeeding activity against P. xylostella. From the n-hexane sequentially partitioned showed H6 and H8 fractions of antifeeding activities against P. xylostella. And chitin synthesis inhibition activity against P. xylostella was obtained the methaol, n-hexane and water fractions.
영동지역 갈색여치의 발생시기별 서식지의 변화 및 발육생태 특성
방혜선,정명표,김명현,한민수,나영은,강기경,이덕배,이경열,Bang, Hea-Son,Jung, Myung-Pyo,Kim, Myung-Hyun,Han, Min-Su,Na, Young-Eun,Kang, Kee-Kyung,Lee, Deog-Bae,Lee, Kyeong-Yeoll 한국응용곤충학회 2009 한국응용곤충학회지 Vol.48 No.4
충북 영동지역에서 대발생한 갈색여치의 서식지 변화 및 배자후발육의 특징에 관해서 2007년에서 2009년까지 3년간 조사하였다. 갈색여치의 월동알은 3월말에서 4월초까지 약 2주 동안 야산에서 부화하였으며, 이 기간의 지온은 $7{\sim}14^{\circ}C$로 측정되었다. 부화한 약충은 야산에 서식하며 참나무류의 잎을 가해하였으나 5월 초순경에 3-4령이 되면서 과수원으로 서식처를 이동하였다. 이 시기는 비탄리 일대 과수원 복숭아잎이 개엽하는 시기와 일치하였다. 갈색여치는 복숭아 잎을 가해하면서 성충까지 발육하였고 6월 하순경에 다시 인근 야산으로 이동하였다. 갈색여치는 부화 후 성충이 되기까지 평균 7회 탈피를 하며, $25^{\circ}C$에서 그 기간은 평균 49.2일이었다. 야외에서 채집한 암컷 성충은 평균 26.2 mm의 긴 산란관을 가지며 앞가슴등판 및 뒷다리 퇴절의 크기가 수컷보다 컷다. Characteristics of habitat alteration and post-embryonic development of Paratlanticus ussuriensis were investigated in the mountain region of Bitanri, Yeongdong county, Chungcheongbuk-do from 2007 to 2009. Overwintered eggs under the ground in the hillside were hatched from late March to early April. The soil temperature during this season was $7{\sim}14^{\circ}C$. Young nymphs lived mainly at the hillside by eating oak tree leaves but the 3rd or 4th instars switched their habitat to orchards near the hillside in early May, which is the time for sprouting of peach leaves. Old nymphs developed into the adult stage at the orchards in late May and moved back to the hillside in late June. Duration of post-embryonic development from the first instar nymph to adult was 49.2 days after 7 moltings at $25^{\circ}C$. Female adults collected from the field had long ovipositor (26.2 mm) and were slightly longer in the body length, hind femur, tegmen and pronotum than those of males.
Development of Copris tripartitus(Coleoptera:Scarabaeidae)in Two Diffenent Rearing Media
방혜선,K.G.WARDHAUGH,황석조,권오석 한국곤충학회 2003 Entomological Research Vol.33 No.3
Like many other sub-social insects, Copris tripartitus Waterhouse requires parental care during the development period in the brood balls. Mass-rearing is achieved by using indoor rearing systems and adding more dung after taking away the brood balls containing eggs. Without parental care, larvae are often affected by desiccation, as well as by fungal or sciarid fly intrusion of the brood balls. This study developed a good substitute for brood ball rearing medium. A significantly greater number of progeny survived to adulthood from broods produced by beetles reared on vermiculite medium (90.69±10.98%) than on peat moss medium (44.82±13.92%). Results of the study suggest that to protect the brood balls from desiccation and to produce healthy adults, 15-20% moisture content vermiculite must be used as brood ball rearing medium for most species reared in the laboratory.