• ALGAE
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• 제18권1호
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• pp.89-94
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• 2003

• Journal of Microbiology
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• 제35권4호
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• pp.271-276
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• 1997

We isolated phenotypic suppressors of an absB (antibiotics synthesis suppression) strain. In the absB colonies, all four antibiotics including two pigmented antibiotics were blocked so that no pigmentation could be found. We assumed that in the colonies with the wuppressive(or reversive) mutation, both pigmentation would be restored so that the strains with suppressive mutation could be cisually detected. Harvested absB spores were treated with chemical mutagen along with electric shock, and were spread on specially fromulated minimal medium plates. The pigmented colonies were isolated from the unpigmented majorities. In one candidate strain, the restoration and significant overproduction of actinorhodin and undecylprodigiosin were recognized. In three other candidate strains, the overproduction of actinorhodin and restoraion of undecylprodigiosin were observed. The production of the two unpigmented antibiotics (CDA and methylenomycin) were visualized in the tested candidate strains. The strains with wuppressive mutations would be very useful in dlucidating the regulation network of antiviotics synthesis and overproduction of the antibiotics.

• 한국어류학회지
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• 제3권1호
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• pp.42-47
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• 1991

1988년 6월에서 8월 사이에 충남 보령군 웅천면 웅천천에서 어류상을 조사하던 중 돌고기 Pungtungia herzi와 감돌고기 Pseudopungtungia nigra 사이의 속간(屬間) 잡종(雜種)이라 의심되는 개체를 채집하였다. 형태형질(形態形質)과 계측형질(計測形質)의 비교조사 결과, 두 속간(屬間)의 key character인 지느러미 반문의 pigmentation, 그리고 입의 모양과 위치 등에서 중간형질 (intermediary)을 보여주고 있어서 본 개체는 두 속간(屬間)의 자연잡종(自然雜種)이라 생각되었다.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제7권2호
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• pp.243-247
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• 2004

저자 등은 정계정맥류 수술을 위해 본원 비뇨기과에 입원한 14세 남아가 공막의 황달과 직접형 빌리루빈의 증가 소견을 보였고 간생검 등으로부터 로터 증후군으로 증명되어 참고문헌과 아울러 보고하는 바이다.

• 환경생물
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• 제22권2호
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• pp.336-340
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• 2004

In order to search for anti -melanin formation agents from Korean medicinal herbs, we selected 21 Korean medicinal herbs, based on a review of Korean traditional medicine books and the recommendations of Korean traditional medical doctors. We tested for inhibition effect of melanin pigmentation of Clone M-3 mouse melanocyte cell lines when we treated the extracts of 21 medicinal herbs in the mouse melanocyte cell lines, respectively. Among 21 medicinal herb extracts, 5 extracts showed a inhibition effect of melanin formation. The sample Phaseolus radiatus L, Cordyceps militaris, Pinellia ternata, Phellinus linteus and Citrus junos Tanaka showed a significantly little formation of melanin pigments compared with control groups. Especially extract of Citrus junos Tanaka was more potent than the others. These results suggest that extract of Korean Citrus junos may represents an excellent candidate for inhibition of melanin pigmentation at in vitro level.

• 대한수의학회지
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• 제36권2호
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• pp.463-470
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• 1996

The red yeast Phaffia rhodozyma, which contains astaxanthin(3, 3'-dihydroxy-$\beta$, $\beta$-carotene-4, 4'-dione) as its primary carotenoid, was tested as a dietary pigment source for egg yolks of laying hens. When the yeast was fed to laying hens at several concentrations, the intensity of redness in egg yolks was dependent on the yeast concentration in the feed and the deposition period. Addition of P rhodozyma in feed did not cause any visible adverse effect on laying hens.

• 대한수의학회지
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• 제16권2호
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• pp.191-195
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• 1976

On the basis of pigment production on brain heart infusion agar medium containing crocin, differentiation of mastitic streptococcus was investigated. Intensive crocin reaction was showed in braille heart infusion agar when maximum volume of gardenia powder was 5.0 mg/ml and dark-violet pigmentation of Str. uberis and Group D (Str. facalis) Streptococcus were differentiated from negative strains of Str. dysgalactiae. Also, although most of Str. agalactiae was producted pigment, a few was not affected with the crocin reaction.

• 대한수의학회지
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• 제15권2호
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• pp.259-262
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• 1975

Four Humboldt penguins were imported from overseas in March, 1975. Soon after arrival at the Zoological Garden of Chang Gyeong Won in Seoul, two penguins became ill with symptoms of severe dysnnoea, vomiting, diarrhea and mild convulsion. They died on the second day of illness. The main pathological finding was bronchitis which accompanied a caseous airsacculitis on the left lung. A massive melanin pigmentation in the intertubular tissue of the testis was found accidentally.

• 대한약침학회지
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• 제21권1호
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• pp.14-17
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• 2018

Objective: It has been attempted to find out that Homine Placents and Soyeom mixed Pharmacopuncture (HSP) procedure is effective for the removal of melanocytic nevus of considerable size which cannot be applied to general acupuncture. Methods: Hominis placenta (0.5ml) and Soyeom (0.5ml) mixed pharmacopuncture (1.0ml) was subcutaneously injected in several places of melanocytic nevus. The treatment was performed about 20 times, once a week. Layer analysis of pigmentation was carried out using ECOSKIN. Results: One year after the HSP procedure, the pigmentation of the melanocytic nevus was slightly reduced and completely removed after 2 years of procedure. Conclusion: The HSP could be effective for removing hyperpigmentation in the melanocytic nevus.

• KSBB Journal
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• 제8권1호
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• pp.89-94
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• 1993

Thc effect of light and phylohormonc on the belalaln synthesis was tested using the suspension culture of a rod(bclalaln produulng) cell line from Phytolacca esculenta V. Houtte. Betalain synthesis of rod-cell 1ine was strongly dependent on the irradiation of blue light, but induced by hormone, IAA and/or kinetin, in dark conditions. In a light condition, however, 2 mg/l of IAA increased the betalain content about 30% (per gram fresh weight), whereas more than 0.5mg/l of kinetin remarkably decreased. The hairy root derived from the same plant was also observed for the blue light-dependent pigmentation in the root-tips. When the hairy root grown in dark was transferred to the light condition, the accumulation of betalain was initiated after 12hours. Such pigmentation was completely inhabited by addition of a protein synthesis inhibitor.