• 제목/요약/키워드: Quercus sp.

검색결과 58건 처리시간 0.025초

광주신창동저습지유적출토수침목재의수종식별 - 2005년광주 ~ 장성간도로확장공사구간내 - (Species Identification of Waterlogged Archaeological Woods Excavated at Shinchang-dong Wetland Site)

  • 박영만
    • 박물관보존과학
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    • 제10권
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    • pp.29-42
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    • 2009
  • 본 연구는 국립광주박물관이 발굴 조사한 광주~장성간 도로확장공사 구간 내에서 출토된 수침고목재 25점에 대한 수종을 조사하였다. 그 결과 참나무과 상수리나무류 9점, 참나무과 졸참나무류 6점, 참나무과 밤나무속 3점, 버드나무과 버드나무속 2점, 자작나무과 오리나무속 1점, 장미과 벚나무속 1점, 뽕나무과 뽕나무속 1점, 물푸레나무과 이팝나무속 1점, 두릅나무과 오갈피나무속 1점으로 식별되었다.

부여군 부소산의 산림군락 구조 (Structure of Forest Community in Mt. Busosan, Buyeo-Gun)

  • 정용문;김동석;김광동;이상화;송호경
    • 한국환경복원기술학회지
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    • 제9권1호
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    • pp.55-63
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    • 2006
  • This study was carried out to analyze community character and classify forest community with phytosociological method and quadrat method to forest of Mt. Busosan in Buyeo-Gun.1. Communities by phytosociological method were classified into Pinus densiflora community and Quercus sp. community. With the classification of TWINSPAN, the community was categorized into Pinus densiflora - Quercus variabilis community and Pinus densiflora - Styrax japonica community.2. The importance value of Pinus densiflora, Quercus acutissima, Prunus sargentii, Styrax japonica, Quercus serrata, Quercus variabilis, Pinus rigida, Quercus aliena in tree layer were 83.20, 41.87, 30.93, 24.85, 23.27, 20.97, 20.28, and 9.46, respectively. The relative coverage of Stephanandra incisa, Quercus serrata, Styrax japonica, Parthenocissua tricuspidata, Rhododendron mucronulatum, Lindera obtusiloba, Prunus sargentii, Quercus variabilis, Indigofera kirilowii, Quercus acutissima, Lespedeza maximowiczii, and Acer pseudosibolianum in shrub layer were 9.62%, 9.55%, 9.18%, 7.85%, 6.18%, 5.25%, 4.82%, 4.15%, 3.98%, 3.98%, 3.55%, and 2.98%, respectively.3. According to size distribution map of diameter breast height of dominant species, the dominant species of Mt. Busosan was Pinus densiflora, and Quercus sp. such as Quercus acutissima, Quercus variabilis, and Quercus serrata may compete with the Pinus densiflora in the future.4. According to the ordination analysis of Mt. Busosan forest, Pinus densiflora - Styrax japonica community was found in moist site and Pinus densiflora - Quercus variabilis community was found in dry site.

설악산에서의 세포성 점균의 신종 : Dictyostelium caudabasis (New Species of dictyostelid in Mt. Seorak, Korea : Dictyostelium caudabasis)

  • 심규철;장남기
    • The Korean Journal of Ecology
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    • 제21권2호
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    • pp.163-167
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    • 1998
  • One new species of cellular slime molds, Dictyostelium caudabasis sp. nov. Shim et chang, is isolated from soils in the Quercus mongolica forest of Seorak monutain, South Korea. D. caudabasis is charaterized by small sorophores, scarecely phototrophic, irregularly or sparsely branches, capitate-simple or capitate-compound and sometimes obtuse-simple tips, and conical and sometimes clavate bases. Spore are elliptical, $6.52~4.82{\times}3.40~2.83{\mu}m(avg.\;5.72{times}3.17{\mu}m$), L/W index 1.70-1.92(avg. 1.80) without polar grnules.

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표고골목에서 발생한 미기록 Hypoxylon sp., 회색버짐버섯(가칭)의 특성 (Characteristics of an Unrecorded Hypoxylon sp. Occurred on the Bed-log of Oak-mushroom in Korea)

  • 박원철;이봉훈
    • 한국균학회지
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    • 제30권2호
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    • pp.170-172
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    • 2002
  • An unrecorded Hypoxylon sp. was observed on the bed-log of oak-mushroom (Lentinula edodes) in Korea. The stroma of the fungus was formed on the bed-log (Quercus spp.) damaged by Korean squirrel (Sciurus vulgaris coreae). Perithecia were $200{\sim}400{\mu}m$, and asci containing 8 ascospores were $7{\sim}8{\times}150{\sim}230{\mu}m$ in size. Paraphysis was cylindrical shape, Ascospores were $5{\sim}9{\times}12{\sim}17.5{\mu}m$ in size, pale brown to dark brown, elliptical, and smooth. They have germination cleft and $1{\sim}2$ oil droplets.

대구 동천동 청동기시대 취락유적 출토 목질류 수종 분석 연구 (Study of the Species of Trees Used for Wooden Artifacts Excavated from a Bronze-Age Settlement Site in Dongcheon-dong, Daegu)

  • 이효선
    • 박물관보존과학
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    • 제20권
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    • pp.49-60
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    • 2018
  • 대구 칠곡지구 일대 유적은 청동기시대 및 삼국시대 대규모 취락지가 확인된 고고학적 조사로 그 의의가 크다. 특히 대구 동천동 취락유적에서는 청동기시대 수혈주거지, 고상건물지, 석관묘, 우물, 집수기, 집석, 구상유구, 경작지, 환호, 하도 등의 유구가 확인되어 청동기시대 당시 취락의 전모를 알 수 있는 많은 자료가 조사되었다. 본 조사는 대구 동천동 취락유적 내 청동기시대 하도 유구 출토 목기 8점에 대한 수종분석 결과이다. 조사 결과, 침엽수재 수종인 소나무류(Pinus spp.)가 2점, 전나무속(Abies spp.) 수종이 2점, 활엽수재 수종인 상수리나무류(Quercus sp.)가 4점 식별되었다. 용도미상으로 분류된 3점의 목기는 소나무류와 전나무속 수종이였으며, 건축부재 5점은 소나무류가 1점, 상수리나무류가 4점이었다.

표고재배시 여러 종류의 참나무골목에 발생되는 해균상 (Harmful Microorganisms Occurred on the Bed-logs of Several Quercus spp. for Shiitake Cultivation)

  • 박원철;가강현;윤갑희;유성열;이봉훈
    • 한국균학회지
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    • 제35권1호
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    • pp.33-36
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    • 2007
  • 표고재배시 여러 종류의 참나무 골목에 발생되는 해균들의 발생상황을 확인하고자 조사를 시도하였다. 조사결과, 전체적으로 구름버섯을 포함해서 총 14종의 해균이 관찰되었다. 상수리나무에서 12종, 신갈나무에서 9종, 갈참나무에서 10종의 해균이 관찰되었다. 상수리나무에서는 주홍꼬리버섯, 검은혹버섯, 회색버짐버섯, 푸른곰팡이균이 전체 발생 해균 중 75.1%를 차지하였다. 신갈나무에서는 검은혹버섯과 푸른곰팡이균, 이들 두 해균이 전체 발생 해균의 71.2%를 차지했으며, 갈참나무에서는 발생된 해균의 80.3%가 검은혹버섯, 푸른곰팡이균, H. howeianum이었다. 주홍꼬리버섯과 회색버짐버섯은 상수리나무에서만 발생되었으며, 발생비율은 각각 51.6%, 13.1%였다. 그리고 검은혹버섯은 갈참나무의 46.6%에서 발생되었으며, 푸른곰팡이균은 신갈나무의 30.3%에서 발생되었다.

강원 중부지역 산림내의 딱정벌레과(科) 분포에 관한 연구 (Distribution of Carabid Beetles(Coleoptera: Carabidae) in different forests of Central Kangwon-do)

  • 장석준;김종국
    • Journal of Forest and Environmental Science
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    • 제16권1호
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    • pp.42-49
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    • 2000
  • 임상이 서로 다른 임분에서 딱정벌레군집 구조를 해석하였다. 딱정벌레과의 전체 종수 및 개체수는 소나무림에서 10속 23종 1,1627개체, 잣나무림에서 11속 23종 418개체, 일본잎갈나무림에서 11속 25종 782개체, 참나무림에서 12속 25종 1,383개체 이었다. 소나무림에서 우점종들은 Synuchus cycloderus(19.8%), Synuchus nitidus(16.6%), Pterostichus pertirax(16.2%), 잣나무림 Pterostichus sp. 1(27.9%), Synuchus nitidus(24.4%), Synuchus cycloderus(10.2%), 일본잎갈나무림 Synuchus sp.1(40.0%), Synuchus nitidus(9.3%), Pterostichus sp.1(7.4%), 참나무림 Pterostichus sp.2(17.4%), Synuchus cycloderus(14.4%), Pterostichus pertirax(14.1%) 이었다. Shannon지수 (H') 및 균등도지수(J')는 소나무림 2.11, 0.64 잣나무림 2.25, 0.72, 일본잎갈나무림 2.23, 0.69, 참나무림 2.32, 0.72로 조사되었으며, 유사도지수는 잣나무와 참나무림에서 0.66으로 낮았으며, 소나무림과 일본잎갈나무림에서 0.83으로 가장 높았다.

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Ceratocystis quercicola sp. nov. from Quercus variabilis in Korea

  • Cho, Sung-Eun;Lee, Dong-Hyeon;Wingfield, Michael J.;Marincowitz, Seonju
    • Mycobiology
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    • 제48권4호
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    • pp.245-251
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    • 2020
  • During a survey of putative fungal pathogens infecting oak trees in the Gangwon Province of the Republic of Korea, a fungus resembling a Ceratocystis sp. was repeatedly isolated from natural wounds on Quercus variabilis. Morphological comparisons and DNA sequence comparisons based on partial β-tubulin and TEF-1α gene regions showed that the fungus resided in a distinct lineage. This novel Ceratocystis species is described here as C. quercicola sp. nov. This is the first novel species of Ceratocystis to be reported from Korea. A pathogenicity test showed that it can cause lesions on inoculated trees but that it had a very low level of aggressiveness. The discovery of this fungus suggests that additional taxa residing in Ceratocystis are likely to be discovered in Korea in the future.

개량(改良)펄프화법(化法)으로 제조(製造)된 폐액(廢液)중의 리그닌의 특성(特性) (Lignin Characterization of Waste Liquor by Modified Pulping Process)

  • 황병호;조헌정;이종윤
    • Journal of the Korean Wood Science and Technology
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    • 제23권1호
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    • pp.13-20
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    • 1995
  • This study was carried out to investigate the characterization of lignins from waste liquors in SP, KP, ASAM, and AS from Pinus densiflora, Quercus mongolica, and Betula ermanii. Spectroscopic study was applied to examine the lignins separated from different pulping process. Lignin contents in waste liqours increased in order of AS, ASAM, KP, and SP. UV spectra of three types of lignin except AS lignin showed similar pattern. IR spectra of AS lignin showed strong C=O absorptions in the range from 1730 to 1750$cm^{-1}$, where as those of KP, SP, and ASAM showed weak stretch in this region. NMR spectra of AS lignin showed strong characteristic chemical shifts of acetoxyl groups of acetylated aliphatic and aromatic hydroxyl groups at 2.0~2.5 ppm. Molecular weight of ASAM lignin from Pinus densiflora determined and found number average molecular weight 1,199, weight average molecular weight 5,458. z average molecular weight 17,242, and viscosity average molecular weight 5,457. It is considered from the results based on spectroscopic study of lignin that waste liquors (in SP, KP, ASAM and AS) from Pinus densiflora, Quercus mongolica, and Betula ermanii can be used for lignin utilization.

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Yeast Associated with the Ambrosia Beetle, Platypus koryoensis, the Pest of Oak Trees in Korea

  • Yun, Yeo Hong;Suh, Dong Yeon;Yoo, Hun Dal;Oh, Man Hwan;Kim, Seong Hwan
    • Mycobiology
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    • 제43권4호
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    • pp.458-466
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    • 2015
  • Oak tree death caused by symbiosis of an ambrosia beetle, Platypus koryoensis, and an ophiostomatoid filamentous fungus, Raffaelea quercus-mongolicae, has been a nationwide problem in Korea since 2004. In this study, we surveyed the yeast species associated with P. koryoensis to better understand the diversity of fungal associates of the beetle pest. In 2009, a total of 195 yeast isolates were sampled from larvae and adult beetles (female and male) of P. koryoensis in Cheonan, Goyang, and Paju; 8 species were identified by based on their morphological, biochemical and molecular analyses. Meyerozyma guilliermondii and Candida kashinagacola were found to be the two dominant species. Among the 8 species, Candida homilentoma was a newly recorded yeast species in Korea, and thus, its mycological characteristics were described. The P. koryoensis symbiont R. quercusmongolicae did not show extracelluar CM-cellulase, xylanase and avicelase activity that are responsible for degradation of wood structure; however, C. kashinagacola and M. guilliermondii did show the three extracellular enzymatic activities. Extracelluar CM-cellulase activity was also found in Ambrosiozyma sp., C. homilentoma, C. kashinagacola, and Candida sp. Extracelluar pectinase activity was detected in Ambrosiozyma sp., C. homilentoma, Candida sp., and M. guilliermondii. All the 8 yeast species displayed compatible relationships with R. quercus-mongolicae when they were co-cultivated on yeast extract-malt extract plates. Overall, our results demonstrated that P. koryoensis carries the yeast species as a symbiotic fungal associate. This is first report of yeast diversity associated with P. koryoensis.