• Journal of Korean Society of Forest Science
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• v.76 no.4
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• pp.357-360
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• 1987

1. The hair cells on adaxial surface turned out to be penetration way of Gleosporium Thea sinensis in tea plant. 2. The most parts of Gleosporium Thea sinensis generated in tea plant were young leaves with first-fifth leaves from tip of shoot. 3. The proper temperature for spore germination on leaf is $25-27^{\circ}C$, soaked by water for 12 hours. 4. For prevention of Gleosporium Thea sinensis the drug-spay in tea plant would be the most effective when sprayed at this temperature range, and the control of Gleosporium Thea sinensis would be possible through selection of tea plant with few hairs. 5. The treatment of bordeaux mixture to prevent growth of conidiospore was 48.3% more effective than in control plot which were not sprayed. 6. The effect of sprayed bordeaux mixture decreased to about 28.5% after one week of spray.

• The Plant Pathology Journal
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• v.17 no.6
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• pp.350-353
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• 2001

In 2001, a black scab disease was observed in tea plant (Thea sinensis) cultivated in the hillsides of Hwngaemyon and Hadong-gun, Gyeongnam province, Korea. The disease symptoms initially appeared on leaves, green twigs and stems, showing small dark brown spots on the infected areas, which gradually expanded. A fungus was isolated from diseased leaves and green twigs. It grew readily on potato dextrose agar, forming dark green to dark gray colonies. The optimum temperature for mycelial growth was about 20$^{\circ}C$. The diameter of growing hyphae was 3.5-5.8 $\mu\textrm{m}$. Conidia were ellipsoidal, ovoid or subspherical, and mostly one-celled but occasionally septate. The size of one-celled and septate conidia were 3.7-12.4${\times}$3.4-5.2 $\mu\textrm{m}$ and 9.3-18.7${\times}$3.8-7.2 $\mu\textrm{m}$, respectively. Conidia were formed in long branched chains on the erected conidiophores, which were dark brown in color and 28.9-218.3${\times}$3.0-6.1 $\mu\textrm{m}$ in length. The fungus was identified as Cladosporium herbarum on the basis of its morphological characteristics. The black scab disease occurring in tea caused by Cladosporium herbarum has not been previously reported in Korea.

• The Korean Journal of Ecology
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• v.9 no.4
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• pp.209-223
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• 1986

The forest stands of Seonusan area, South-western Korea, were classified into three alliances and nine communities by the Z-M school scheme. Of these one alliance and four association were recognized in this study, that is, an alliance, Carpinion laxiflorae and four associations, Casrpinetum tschonoskii, Quercetum variabilis, Carpinetum laxiflorae and Rhododendro mucronulati-Pinetum densiflorae. Hierachy of Seonunsan area forest vegetation by Z-M scheme was as fallows: Pinion densiflorae Suz.-Tok. 1966. 1. Rhododendro mucronlati-Pinetum densiflorae ass.l nov., 2. Pinus thunbergii community. Carpinion laxiflorae all. nov., 1. Quercus serrata-Carpinus tschonoskii community, 2. Quercus aliena-Carpinus tschonoskii community, 3, Carp inetum tschonoskii ass. nov., a. Typical subass., b. Sasa borealis subass. 4. Quercetum variabilis ass. nov., a Sasa borealis subass. b. Typical subass, 5. Carpinetum laxiflorae ass. nov., Zelkovion serratae Miyawaki et al., 1977., 1. Orixo-Zelk ovetum serratae Miyawaki et H. Tohma 1975., a Typical subass., b. Thea sinensis facies, 2. Thea sinensis-Camellia japonica community.

• Korean Journal of Plant Resources
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• v.4 no.1
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• pp.13-16
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• 1991

Tea plant has been mllainly grown in shade aild wet flace of several temple surroundings for a long years in sourthern area of Korea, since it has been introduced about1,000 years ago In those rlaces, it has been mostly grown in semi-wild, but recentlycultivated in a part of Bosung-gun, Cheonnanl province. External forms of tea plantwere considered that those have a little changed according to geographic andclimatic conditions of growing places. To investigate how is the variation of teaplant by the difference of environment conditions under growing places, we had ex-amined the protein and isozyme patterns of seeds of tea plant. In spite of difference ofgeographic and climatic conditions, the patterns of catalase, esterase, acid phosphat-ase isozyme and protein showed the same aspects.

• Research in Plant Disease
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• v.9 no.4
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• pp.209-212
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• 2003

Blister blight was occurred on tea (Thea sinensis) in a farmer's tea garden located in Sicheon-myon, Sancheong-gun, Gyeongnam province, Korea. The typical symptoms of the disease were appeared on the leaves and bud. The early symptom were started with small yellowish spots then infected area became upheave and covered with white blister which the hymenium de.veloped from under neath of epidermis. Generally, the infected leaves and buds were appeared like rice cake. Colonies formed on PDA were developed white, later turned milk white. Basidia were 2 sterigma, and 30${\sim}$53 ${\times}$ 3.1${\sim}$5.8 ${\mu}m$ in size. Basidiospores were ellipsoid curved, coloriess, 1-celled and 11${\sim}$14.7 ${\times}$ 4${\sim}$5.4 ${\mu}m$ in size. The optimum temperature for growth of the fungus was about $25^{\circ}C$ on PDA and PSA. This is the first report on the blister blight of tea caused by Exobasidium vexans in Korea.

• Food Science and Preservation
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• v.11 no.2
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• pp.201-206
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• 2004

The activities of antioxidation and alcohol dehydrogenase in hibitionin methanol extracts of thirty two medical herbs were tested using the method of DPPH activity, nitrite scavenging effect and alcohol dehydrogenase assay in vitro. In DPPH method, Eugenia caryophyllata, Thea sinensis, Paeonia suffruticosa, Alnus japonica showed over 90 % of free radical scavenging activities. The nitrite scavenging ability appeared Zanthoxylum bungeanum, Alnus japonica, Thea sinensis, Hovenia dulcis(cortex) and Illicium verum showed the high value. In connection with in vivo alcohol metabolism, thirteen medicinal herbs were screened for inhibition. As a reasult, we found significant inhibition of ADH by methanolic extracts of Glycyrrhiza uralensis, Pueraria thunbergiana(radix), Alnus japonica. These results indicate that the antioxidative effect was strongly related with alcohol dehydrogenase inhibitor; Thea sinensis and Alnus japonica.

• Journal of Haehwa Medicine
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• v.5 no.1
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• pp.185-198
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• 1996

After evaluation of antithrombotic effect of 40 herbs on platelet aggregation induced by ADP(Adenosine diphosphate), these results were obtained as follows: 1. Crude drugs exerting over 30 % of in Chinemys reevesii (Gray)hibition on platelet aggregation induced by ADP were Ganoderma japonicum (Fr.) Lloyd., Panax ginseng C. A. Mey., Gastrodia elata Bl., Thea sinensis, Chinemys reevesii (Gray), Cuscuta chinensis Lam., Cervus nippon Temminck., Biota orientalis (L.) Endl., Coriolus versicolor, Cinnamomum cassia Presl., Sophora flavescens Ait., Amomum villosum Lour., Carthamus tinctorius L., Rubus chingii Hu., Poria cocos (Schw.) Wolf., Laminana japonica Aresch., Ligustrum lucidum Ait., Angelica sineusis (Oliv.), Cyperus rotundas L., Ginkgo biloba L., Zingiber officinale Rosc., Prunus persica (L.) Batsch., Schizandra chinensis (Turcz.) Baill. and Plantago asiatica L.. 2. Of crude drugs having showed over 50% of inhibitory effect on platelet aggregation, at the concentration of $100{\mu}g/m{\ell}$, the inhibitory rates were 82.2% in Ganoderma japonicum (Fr.) Lloyd., 55% in Panax ginseng C. A. Mey., 50.8% in Gastrodia elata Bl., while at the concentration of $200{\mu}g/m{\ell}$, antithrombotic rates were 89.4% in Ganoderma japonicum (Fr.) Lloyd., 59.2% in Panax ginseng C. A. Mey., 57.9% in Thea sinensis, 52.7% in Gastrodia elata Bl.. These results suggest that the study sholuld be necessary on antithrombotic effect of solvent fractions of Ganoderma japonicum (Fr.) Lloyd., Panax ginseng C. A. Mey., Gastrodia elaha B1. and Thea sinensis and isolation of effective compound from above drugs.

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2000.10a
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• pp.11-11
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• 2000

• Journal of the Korean Wood Science and Technology
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• v.31 no.6
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• pp.40-44
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• 2003

This study was carried out to investigate the antioxidant activities of domestic trees grown in Korea. Based on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity method, the methanolic extracts of 23 species were screened in order to search for natural antioxidants. Among these species, Acer ginnala, Cotinus coggygria, Acanthopanax koreanum, Thea sinensis and Pinus densiflora showed stronger antioxidative activity comparing with reference compound, ascorbic acid.

• Journal of environmental and Sanitary engineering
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• v.5 no.1
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• pp.63-88
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• 1990

The vegetation of Mt. Joghesan of a provincial park in Cheolanamdo was surveyed over twenty times from July, 1980 to December, 1981. The plants of Mt. Jonghesan consisted of 10 forma, 107 varieties, 597 species, 424 genera and 122 families, and among them were 204 species of esculent plants, 199 species of medicina plants and 30 species of the others oil plants and fiber plants. Evergreen herbs consisted of 12 species, including Coniogramme intermedia, Asplenium sarelii, and Asplenium incisum etc. And Evergreen broad-leaved trees consisted of 22 species, including Thea sinensis, Sasa borealis, and Quercus acuta etc. And evergreen needle-leaved trees consisted of 15 species, including Torreya nacitora, Pinus densiflora, Sciadopitys japonica, and Chamaecyparis obtusa etc. The community of broad-leaved consisted of Quercus spp, Carpinus laxiflora, Sasa borealis, including leading dominant species of Lespedeza maximowiczii, Viburnum erosum, Fraxius rhynchophylla, Viburnum dilatum, Rhus trichocarpa, Zelkova serrata, Miscanthus sinensis, Eragrostis ferrugina, Carex augustinowiczii persicaria filiforme var. neofiliforme, Vicia amoena, Smilax riparia var. ussuriensis, and Aster yomena etc. The vegetation of Seunamsa areas in Mt. Joghesan was favorable but the vegetations of the other areas in the mountain were negligible. The vegetation of Koolmokchi areas which had been much destroyed by forest fires was mostly covered with Quercus spp which are resistant to forest fires. Lindera sericea, Alangium platanifolium var. macrophyllum, Ilex macropoda, Corylopsis coreana, Albizzia julibrssin of old trees, Acer mono, the community of Thea sinensis, Stewartca koreana, Cornus alba, Dryopteris bisstiana, Asplenium incisum, Camptosorus, Lepisorus thunbergianus, gastrodia elata, Cymbidium goeringii, and the community of Persicaria filiforme var. neofiliforme etc. in Mt. Jonhesan are autochthonous flora, and their preservation is required. As the Pinus densiflora forest in Mt. Joghesan which was hewn down by human power has not been restored, Jeopchi areas and Koolmokchi areas in Mt. Joghesan have no Pinnus densiflora trees 700m above the sea level.