• Landscaping Tree
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• s.144
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• pp.66-67
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• 2015

몇 년 전 제주도의 소나무 묘포장에서 급격히 생장이 떨어지다가 결국 나무가 죽는다는 피해 진단 의뢰가 있어 현지 조사를 하였다. 병원균을 동정(同定)한 결과 자주날개무늬병(Helicobasidium mompa)에 의한 피해로 밝혀졌다. 자주날개무늬병은 과수, 뽕나무, 느릅나무, 은행나무, 참나무류, 편백나무 등 넓은 기주범위를 가지며 특히 사과나무에 큰 피해를 주는 것으로 알려져 있다. 우리나라에서는 소나무에 공식적인 보고기록은 없으나 본병과 발생지의 특성을 파악하여 소나무 묘목관리에 주의를 요하는 의미에서 이 병을 소개한다.

• Journal of Sericultural and Entomological Science
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• v.34 no.2
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• pp.67-70
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• 1992

누에는 식식성 곤충중에서도 단식성 또는 협식성의 곤충으로 널리 알려져 오랜 세월동안 뽕잎만을 먹고살아 왔다. 이 누에를 뽕 이외의 식물로 사육해 보려는 시도는 꽤 오래 전부터 실시되어 누에가 먹고 어느 정도 성장할 수 있는 식물로는 구지뽕나무, 닥나무, 민들레, 왕고들빼기, 씀바귀 등 10여 종류가 넘게 보고되어 있다. 그러나 이들의 사육성적이나 얻어진 고치는 뽕을 먹여 사육한 성적과는 비교도 안 되는 현저히 뒤떨어지는 것이었고 실용적인 의미에서 뽕을 능가하는 식물은 찾아볼 수 없다.(중략)

• Landscaping Tree
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• v.79 no.3_4
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• pp.27-30
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• 2004

봄이면 우리의 가슴을 설레게 하는 벚꽃의 연분홍색 자태는 4월을 알리는 봄의 전령으로 우리를 기쁘게 하지만 이를해치는 해충의 종류는 한국수목해충목록집에 424종이 등재되어 있어 인간이 벚꽃을 사랑하는 만큼이나 곤충들도 벚나무류를 무척 좋아 하는가봅니다. 1990년 이후 각 도시의 가로수, 정원수로서 경쟁적으로 식재 관리하고 있는 벚나무류에 대한 주요해충으로 복숭아혹진딧물, 뿔밑깍지벌레, 뽕나무깍지벌레, 공깍지벌레, 벚나무응애 등 흡증성해충을 중심으로 이들 해충에 대하여 생리·생태 및 방제법을 간략하게 소개하고자 한다.

• The Magazine for Energy Service Companies
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• s.69
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• pp.40-43
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• 2011

상전벽해(桑田碧海). 뽕나무밭이 변하여 푸른 바다가 된다는 말이다. 다른 뜻으로는 어떠한 현상이 몰라보게 변하는 경우를 가리킨다. 2011년 ESCO산업은 상전벽해라는 단어와 정말 잘 어울리는 한 해가 되지 않을까. 예년과 달리 정책자금이 3,900억 원 규모로 확대되었고, ESCO자금지원에 경쟁체계를 도입하여 평가 후 자금을 지원하는 등 그야말로 파격적인 변화가 생기게 되었기 때문이다. 이러한 다양한 변화에 대해 에너지관리공단 ESCO자금실 우재학 실장을 만나 심도 있는 이야기를 들어보았다.

• Journal of Sericultural and Entomological Science
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• v.52 no.1
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• pp.64-72
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• 2014

We bred a mulberry cultivar named Suhyang through local adaptability test, which is under registration as a new cultivar for fruit production. Local adaptability test was carried out at four places (Suwon, Kongju, Wanju and Jinju) for six years from 2007 to 2012. This is belonging to (Morus alba L.) crossed between Josaenghongpisang (Morus alba L.) and Kaeryang (Morus alba L.) among mulberry genetic resources preserved in Suwon. Suhyang was high yielding cultivar in fruit productivity by 12% compared to control cultivar 'Chungil (Morus alba L.)' for four years. Although Suhyang was higher in sugar content of mulberry fruits, it was bigger than that of 'Chungil'. It is adaptable to every where except the places where cold damage and sclerotic disease happen frequently.

• Applied Biological Chemistry
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• v.41 no.2
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• pp.187-190
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• 1998

The cytotoxic activity of MeOH extracts of the freeze-dried silkworm (Bombyx mori)-derived materials (4th instar larvae, female and mate pupae, virgin female and male adult), dried Beauveria bassiana-infected silkworm larvae, dried feces from the 4th instar larvae B. mori, and dried mulberry (Morus alba)-derived materials (leaves, fruits, root barks) in vitro was evaluated by sulforhodamine B assay, using the five human solid A 549 lung, SK-OV-2 ovarian, SK-MEL-2 melanoma, XF-498 CNS and HCT-15 colon tumor cell lines. The responses varied with both cell line and material used. The 70% hot MeOH extract of B. mori feces (BFH) revealed potent cytotoxic activity against model tumor cell lines whereas moderate activity was observed from the MeOH extract of B. mori feces. M. alba root barks, and M. alba fruits. The other test materials were ineffective. Because of its potent cytotoxic activity, the activity of each solvent fraction from the BFH was determined. Chloroform and ethyl acetate fractions showed the most potent cytotoxic activity. In conclusion, our results may be an indication of at least one of the pharmacological actions of B. mori feces. M. alba root barks, and M. alba fruits.

• Journal of Sericultural and Entomological Science
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• v.35 no.1
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• pp.1-6
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• 1993

The activity change of mulberry seeds protease was compared during germination for 5 days at 28$^{\circ}C$ in the dark place after daily hormone injection of different concentration. The protease from germinated mulberry seeds for 4 days was partially purified and the enzyme characteristics was investigated. The protease activity of mulberry seeds treated by hormone was highest with 10 $\mu$m GA3 followed by 10 $\mu$M zeatin and 10 $\mu$M kinetin. The protease activity of mulberry seeds was increased by 14% with 10ml agar culture that control at 4th day of germination. The protease from mulberry seeds was purified 313 fold by DEAE-Toyo-pearl 650M, Butyl-Toyopearl, Hydrozylapatite and Toyopearl HW 55M. After purification, the specific activity of the enzyme was 175 units/mg. Optimum pH and temperature of protease from mulberry seeds was 5.0 and 37$^{\circ}C$, respectively. The protease was stable below 37$^{\circ}C$ and the enzyme activity was decreased by 50%, when incubated at 52$^{\circ}C$ for 10minutes. The protease activity of mulberry seeds was inhibited by metal ions such as mercury, iron, zinc, copper, but activited by magnesium, choromium, aluminium ions. The Km value of the protease was 0.89mM with azocasein as a subscribe.

• Journal of Sericultural and Entomological Science
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• v.49 no.1
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• pp.18-23
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• 2007

The importance of genetic resources conservation and utilization for economy and the health and well-being of societies in general is recognized all over the world. Mulberry genetic resources contain many natural components and are considerable resource for functional sericulture. We carried out antioxidative capacity analysis of mulberry leaves that were collected from Korea and some of foreign countries and preserved in the greenhouse. The mean antioxidant capacity of 34 accessions was 892.30nmol(ascorbic acid equivalent). Also we evaluated fruity characteristics and selected 4 accessions as breeding resources for the production of mulberry fruit. To investigate the effect of tea on antioxidative capacity, five kinds of tea(coffee mix, green tea added brown rice, mulberry leaf tea, Polygonatum odoratum tea and black tea added lemon) were selected and analyzed. Their's antioxidative capacity were 2,531.01nmol, 1,867.42nmol, 1,053.72nmol, 292.71nmol and 188.91nmol, respectively. The antioxidative capacity of drinking water soaked with mulberry leaf showed 891.96nmol.

• Journal of Sericultural and Entomological Science
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• v.53 no.2
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• pp.110-117
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• 2015

We bred a mulberry cultivar named Sangmaru, through local adaptability test, which is under registration as a new cultivar for fruit production. Local adaptability test had been carried out at three places (Suwon, Cheongju, and Jangseong) for seven years from 2008. This is tetraploidy variety belonging to Morus alba L. made by colchicine treatment on growing point of 'Chungil (Morus alba L.)' winter buds. Sangmaru was high yielding cultivar in fruit productivity by 6% compared to control cultivar 'Chungil (Morus alba L.)' for five years. Although Sangmaru was similar in sugar content of mulberry fruits, it was bigger than that of 'Chungil'. It is adaptable to every where except the places where cold damage and sclerotic disease happen frequently.

• Journal of Applied Biological Chemistry
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• v.57 no.4
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• pp.295-299
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• 2014

The mulberry (Morus alba L.) root barks were extracted with 80% aqueous methanol at room temperature. The concentrated extract was partitioned as ethyl acetate (EtOAc), n-BuOH, and $H_2O$ fractions. From the EtOAc fraction, five triterpenoids were isolated through the repeated silica gel and octadecyl $SiO_2$ column chromatographies. According to the results of physico-chemical and spectroscopic data including nuclear magnetic resonance, mass spectrometry, and infrared, the chemical structures of the triterpenoids were respectively determined as ${\alpha}$-amyrin (1), ${\alpha}$-acetyl amyrin (2), lupeol (3), betulinic acid (4), and glutinol (5). Compounds 1, 3, and 5 were isolated for the first time from the mulberry root bark.