• Journal of Applied Biological Chemistry
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• 제42권2호
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• pp.92-96
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• 1999

To study the regulatory mechanism of isoprenoid (carotenoid) biosynthesis, we have compared the expression patterns of nine isoprenoid biosynthetic genes in Korean red pepper (Capsicum. annuum cv. NocKaung). The expression of geranylgeranyl pyrophosphate synthase gene was initially induced at early ripening stage (I1) and was rather slightly decreased during pepper fruit ripening. The ex-pression of phytoene synthase gene was strongly induced at semi-ripening stage (I2) and the phytoene desaturase transcript was maximally induced at the fully ripened stage (R). Our results suggest that genes encoding two 3-hydroxy-3-methylglutaryl-CoA reductase isozymes (HMGR1 and HMGR2) and farnesyl pyrophosphate synthase might be not so critical in pepper carotenoid biosynthesis but three genes encoding geranylgeranyl pyrophosphate synthase, phytoene synthase and phytoene desaturase were induced in a sequential manner and coordinately regulated during the ripening of pepper fruit.

• Molecules and Cells
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• 제20권2호
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• pp.247-255
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• 2005

Three different catalase cDNA clones (CaCat1, CaCat2, and CaCat3) were isolated from hot pepper (Capsicum annuum L.), and their expression patterns were analyzed at the levels of mRNA and enzyme activity. Northern hybridization showed that the three catalase genes were differentially expressed in various organs, and that expression of CaCat1 and CaCat2 was regulated differently by the circadian rhythm. In situ hybridization revealed different spatial distributions of CaCat1 and CaCat2 transcripts in leaf and stem. In response to wounding and paraquat treatment, CaCat1 mRNA increased at 4-12 h in both paraquat-treated and systemic leaves. In contrast, wounding had no significant effect on expression of the catalase genes. The increase of catalase activity in the paraquat-treated and systemic leaves paralleled that of CaCat1 mRNA, but did not match that of CaCat1 mRNA in paraquat-treated stems. Our results suggest that CaCat1 may play a role in responses to environmental stresses.

• 한국약용작물학회:학술대회논문집
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• 한국약용작물학회 2008년도 춘계학술발표회
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• pp.266-266
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• 2008

• 한국약용작물학회:학술대회논문집
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• 한국약용작물학회 2008년도 춘계학술발표회
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• pp.260-261
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• 2008

• 한국식품영양과학회지
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• 제26권6호
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• pp.1159-1163
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• 1997

We have studied the effect of 31 extracts and 10 components from some edible and medicinal plants on the formation of lipid peroxide in the liver homogenate of rat in vitro. The 70% acetone extracts of Allium tuberosum, Beta vulgaris var. cicla and Brassica juncea var. integrifolia, and methanol extract of Capsicum annuum decreased the formation of lipid peroxide by 33%, 58%, 62% and 56% at the concentration of 1mg/ml, respectively. And these four extracts inhibited the lipid peroxidation at the concentration of $10^{-1}$mg/ml by 17%, 46%, 49% and 45% respectively. Among the component tested, quercetin, quercitrin and isorhamnetin reduced the formation of lipid peroxide by 45%, 15% and 28% respectively at the concentration of $10^{-2}$mg/ml.

• 한국약용작물학회:학술대회논문집
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• 한국약용작물학회 2009년도 심포지엄 및 춘계학술발표회
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• pp.259-260
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• 2009

• 한국균학회지
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• 제49권4호
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• pp.517-524
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• 2021

Red pepper seedlings were inoculated either alone or with a mixture of all five species of arbuscular mycorrhizal fungi (AMF). After 10 weeks of growth in the greenhouse, the seedlings were transplanted into fields and cultivated without chemical fertilizers and pesticides for 10 weeks. The results showed that plant growth was significantly increased under both greenhouse and field conditions, suggesting that AMF inoculation has a positive effect on the growth of Capsicum annuum and improves the physical properties of the soil by increasing the concentration of glomalin. The application of AMF can positively contribute to sustainable agriculture by reducing the use of chemical fertilizers while increasing crop growth.

• Journal of Plant Biotechnology
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• 제5권4호
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• pp.245-250
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• 2003

An efficient procedure was developed for adventitious shoot bud induction and plantlet regeneration from various explants of the ten genotypes of Pepper (Capsicum annuum L.) using Thidiazuron (TDZ). Among various treatments at 1.0-3.0 mg/L TDZ Induced maximum number of adventitious shoots depending upon the explant type and genotype compared to other treatments. Among the explants tested, leaf induced maximum number of adventitious shoots than the cotyledons. TDZ-mediated organo-genesis was possible in 10 pepper cultivars, the extent of the response being genotype-dependent. Of the ten genotypes tested, C. annuum cvs CA960, $G_4$ and X-235 were produced maximum number of adventitious shoots and Sell was the least, and all other genotypes gave moderate response. Elongation of multiple shoots was observed on medium supplemented with SA (0.05 mg/L) in combination of IAA (0.05 mg/L). Differences in ability for in vitro shoot regeneration and elongation depend upon the variety and explant type. The elongated shoots were success. Fully rooted on MS medium containing at 1.0 mG/L IAA. Plantlets regenerated from different explants of ten genotypes were found to be diploid (2n=24) and were devoid of any chromosomal aberrations. Regenerated plants were successfully established in soil where 85-90% of them developed into morphologically normal and fertile plants.

• 생명과학회지
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• 제6권4호
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• pp.219-226
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• 1996

고수량. 고품질의 고추 신품종을 육성하기 위해 피만의 'California Wonder'와 일본재래종 4품종, 이들의 F$_{1}$ 잡종 12조합 그리고 한국의 F_{1} 3품종을 공시하고, 과실수량과 형태적 특성에 관하여 검토했다. 그 결과 'California Wonder'와 일본재래종간 교잡에 의해 얻어진 F$_{1}$ 잡종은 친품종보다 3일 먼저 개화했다. F$_{1}$ 잡종은 특히 'California Wonder'가 편친이었을 때 친품종보다 고수량 이었다. 또한 일과중도 증가하는 경향 이었다. F$_{1}$ 잡종중에서 'California Wonder' 와 'Fushimi Amanaga' 간 잡종이 가장 고수량 이었다. 자실수와 종자수는 'California Wonder'가 편친이었을 때 친품종보다 많았다. 초장은 친품종보다 F$_{1}$ 잡종이 큰 경향 이었다.

• 생명과학회지
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• 제6권4호
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• pp.227-233
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• 1996

고수량. 고품질의 고추 신풍종을 ?성할 목적으로 피만의 'California Wonder'와 일본재래종 4품종, 이들의 F$_{1}$잡종 12조함 그리고 한국의 F$_{1}$ 3품종을 공시하고, 캡사이시노이드 함량을 조사했다. 그 결과, 캡사이시노이드 함량은 과피보다 태좌에 많이 함유되어 있었다. 태좌의 캡사이시노이드 함량에 있어서 'Yutsufusa', 'Taka no 'Tsume', '청양', '신흥', 그리고 '거성'은 건물중 100g당 1000mg이상 아주 좋은 매운 품종이었다. 그러나 'California Wonder' 그리고 'Fushimi Amanaga' 는 거의 함유되어 있지 않았다. F$_{1}$ 잡종에 있어서 켑사이시노이드 함량은 정역교잡간에 큰 차이가 있었다. 또한 과실의 발육에 따라 켑사이시노이드 함량도 다양해, 개화 4$\sim$5 주후까지는 급격히 증가하고, 그 후는 감소하는 경향이었다.