• 한국약용작물학회:학술대회논문집
• /
• 2008.11a
• /
• pp.279-280
• /
• 2008

• 한국약용작물학회:학술대회논문집
• /
• 2011.04a
• /
• pp.440-441
• /
• 2011

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2007.05a
• /
• pp.355-355
• /
• 2007

• 한국약용작물학회:학술대회논문집
• /
• 2010.10a
• /
• pp.481-482
• /
• 2010

• 한국약용작물학회:학술대회논문집
• /
• 2010.10a
• /
• pp.479-480
• /
• 2010

• Proceedings of the Korean Society of Life Science Conference
• /
• 2007.10a
• /
• pp.62.2-62.2
• /
• 2007

See Full Text

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2005.05a
• /
• pp.76-79
• /
• 2005

$Nd:YVO_4$ 연속발진 레이저(CW laser:Continuous wave laser)로 제작한 다결정 실리콘 박막의 이온도핑 효과를 조사하였다. PECVD로 증착한 비정질 실리콘 박막을 CW 레이저를 조사하여 결정화한 후 $B_2H_6$ 플라즈마 이온 도즈량을 변화시켜 이온 도핑을 하고 급속열처리 방법과 퍼니스 어닐링 방법으로 도펀트 활성화를 하였다. 이온 도핑된 CW 다결정 실리콘 박막의 이온 도즈량에 따른 판저항 변화를 비교하고, 급속열처리(RTA: Rapid Thermal Annealing)와 퍼니스 어닐링(FA: Furnace Annealing) 전후의 결정성 변화를 라만 스펙트럼(Raman spectrum) 을 통하여 분석하였다. 이온 도즈량이 증가함에 따라 판저항은 감소하고, 어닐링 후 이온 도핑에 의해 손상된 박막이 복원됨을 확인 할 수 있다.

• 한국약용작물학회:학술대회논문집
• /
• 2009.05a
• /
• pp.325-326
• /
• 2009

• Journal of Ginseng Research
• /
• v.34 no.4
• /
• pp.296-303
• /
• 2010

A peroxiredoxin cDNA (PgPrx) was isolated and characterized from the leaves of Panax ginseng. The cDNA is 716 nucleotides long and has an open reading frame of 489 base pairs with a deduced amino acid sequence of 162 residues. The calculated molecular mass of the mature protein is approximately 17.4 kDa with a predicted isoelectric point of 5.37. A GenBank BlastX search revealed that the deduced amino acid sequence of PgPrx shares a high degree homology with type II peroxiredoxin (Prx) proteins in other plants. The PgPrx gene was highly expressed in leaves, and expressed at a low level in the stem. To analyze the gene expression of PgPrx in response to various abiotic stresses, we utilized real-time quantitative RT-PCR. Our results reveal that PgPrx expression is induced by ultraviolet irradiation, low temperature, and salt. The induction of PgPrx in response to abiotic stimuli suggests that ginseng Prx may function to protect the host against environmental stresses.

• Journal of Ginseng Research
• /
• v.34 no.1
• /
• pp.17-22
• /
• 2010

Sesquiterpenes are found naturally in plants and insects as defensive agents or pheromones. They are produced in the cytosolic acetate/mevalonate pathway for isoprenoid biosynthesis. The inducible sesquiterpene synthases (STS), which are responsible for the transformation of the precursor farnesyl diphosphate, appear to generate very few olefinic products that are converted to biologically active metabolites. In this study, we isolated the STS gene from Panax ginseng C.A. Meyer, designated PgSTS, and investigated the correlation between its expression and various abiotic stresses using real-time PCR. PgSTS cDNA was observed to be 1,883 nucleotides long with an open reading frame of 1,707 bp, encoding a protein of 568 amino acids. The molecular mass of the mature protein was determined to be 65.5 kDa, with a predicted isoelectric point of 5.98. A GenBank BlastX search revealed the deduced amino acid sequence of PgSTS to be homologous to STS from other plants, with the highest similarity to an STS from Lycopersicon hirsutum (55% identity, 51% similarity). Real-time PCR analysis showed that different abiotic stresses triggered significant induction of PgSTS expression at different time points.