• 제목/요약/키워드: Ericaceae

검색결과 48건 처리시간 0.024초

중국 장백산의 습지성 진달래과 식물 분포와 생태적 특성 (Ecological Characteristics and Distribution of Marshy Ericaceae on Mt. Changbai in China)

  • 김영화;현영남;이성제;안영희
    • 한국환경과학회지
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    • 제22권11호
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    • pp.1421-1431
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    • 2013
  • This study was conducted for clarifying distribution and characteristics of marshy Ericaceae plants on Mt. Changbai in China. The marshy Ericaceae plants in wetland of Mt. Changbai were investigated on about 1400 m altitude. This region is various developmental wetlands and vegetation mixture of needle-leaf trees and broad-leaf trees. This region also is start point of the coniferous forest zone in Mt. Changbai. As results of these researches, L. palustre var. diversipilosum and L. palustre var. decumbens populations were investigated in Larix olgensis var. amurensis community. R. lapponicum subsp. parvifolium var. parvifolium community appeared as a typical community. Environmental conditions of L. palustre var. diversipilosum and L. palustre var. decumbens populations' habitats are more soil humidity and shade condition. R. lapponicum subsp. parvifolium var. parvifolium community habitat, however, has more deposits and humidity condition. Therefore when the plants were cultivated, we should recognize the growth condition such as maintenance of humidity and control deposits. The flora of marshy Ericaceae species habitats was investigated as 28 families, 49 genera, 45 species, 14 variety, 1 forma, 1 sub-species, and total 61 taxa.

Characterization of Rhizodermea veluwensis Isolated from the Roots of Rhododendron mucronulatum in Korea

  • Park, Hyeok;Eom, Ahn-Heum
    • 한국균학회지
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    • 제45권2호
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    • pp.102-106
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    • 2017
  • A fungal strain was isolated from surface-sterilized roots of Rhododendron mucronulatum, a plant species belonging to the Ericaceae family, collected from Mt. Minjujisan, Korea. This fungal strain was identified as Rhizodermea veluwensis based on its morphological characteristics and based on phylogenetic analysis of its internal transcribed spacer regions and large-subunit rDNA. R. veluwensis has not been previously reported in Korea, and for the first time, we report and describe it herein.

한국 미기록 식물: 섬진달래(진달래과) (A new record of Rhododendron keiskei Miq. var. hypoglaucum Suto & Suzuki (Ericaceae) in Korea)

  • 양종철;권영한;지성진;신창호
    • 식물분류학회지
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    • 제45권3호
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    • pp.239-242
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    • 2015
  • 진달래과의 Rhododendron keiskei Miq. var. hypoglaucum Suto & Suzuki가 전라남도 여수시 섬지역에서 발견되었다. 이 종은 전체적으로 인편상 털이 분포하며, 꽃의 동아는 정단부에 1개가 달리고, 화서는 산형 총상화서를 가지며, 화관은 노란색을 띠는 백색에 외부에는 인편상 털이 있는 특징을 가지고 있어 한국에 분포하는 근연 분류군들과 구분된다. 국명은 생육지를 고려하여 '섬진달래'로 신칭하였고, 이에 대한 기재, 도해, 사진 및 검색표를 제시하였다.

몇 가지 식물(植物) 중(中)의 Vesicular-Arbuscular Mycorrhizae 에 관(關)하여 (IV) (Vesicular-Arbuscular Mycorrhizae in Some Plants (IV))

  • 김종균;최두문;문형태
    • 한국균학회지
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    • 제17권4호
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    • pp.214-222
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    • 1989
  • 석회암(石灰岩)지대의 두 지점(地點)에서 채집(採集)한 103종(種)(41과(科))의 식물뿌리 표본(標本) 중에서 9종(種)(95.1%)에서 VA mycorrhizae가 발견되었다. 그 밖의 5종(種)에서는 균근(菌根)구조를 발견하지 못했다. 그 종(種)들은 다음과 같은 과(科)에 속하는 것들이다 : Equisetaceae, Davalliaceae, Amaranthaceae, Ericaceae. 이것과 비교하기 위하여 석회암(石灰岩)지역이 아닌 두 지점(地點)에서 채집(採集)한 124종(種)(51과(科))의 표본(標本) 중에서 99종(種)이 VA mycorrhizae였다. 25종(種)은 Nonmycorrhiza였으며 그들은 다음과 같은 16과(科)에 속하는 것이었다 : Equisetaceae, Pteridacaea, Davalliaceae, Cyperaceae, Commelinaceae, Polygonaceae, Chenopodiaceae, Phytolaceaceae, Amaranthaceae, Aizoaceae, Portulacaceae, Caryophyllaceae, Fumariaceae, Cruciferae, Ericaceae and Rubiaceae.

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Pollen Morphology of the Genus Rhododendron (Ericaceae) in Korea

  • Park, Joon-Moh;Song, Un-Sook
    • 한국산림과학회지
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    • 제99권5호
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    • pp.663-672
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    • 2010
  • The pollen morphology of eleven species and three forms of the genus Rhododendron (Ericaceae) in Korea was examined using light, scanning electron and transmission electron microscopy. The pollen grains are grouped in permanent tetrahedral tetrads; viscin threads are present on the tetrads. The hexacolporate tetrads are of tricolporate monads whereby the apertures form in pairs at six points in the tetrad. The exine sculpture pattern is rugulate, scabrate or verrucate on mesocolpium but psilate, rugulate or microscabrate around the aperture on apocolpium. The exine of Korean Rhododendron pollen consists of tectum, columella, foot layer and endexine. The surface of viscin threads is more or less smooth. The threads are sometimes tangled together and occasionally divided into strands. Six types are recognized based on the pollen morphology. The types are: (1) Micranthum-type (rugulate mesocolpium and psilate apcolpium), (2) Tomentosum-type (rugulate mesocolpium and apocolpium), (3) Aureum-type (scabrate mesocolpium and rugulate apocolpium), (4) Brachycarpum-type (scabrate mesocolpium and rod shaped-microscabrate apocolpium), (5) Schlippenbachiitype (scabrate mesocolpium and round-microscabrate apocolpium) and (6) Weyrichii-type (verrucate mesocolpium).

산앵도(Vaccinium koreanum) 잎 유래 화합물들의 Aldose Reductase 및 혈전응집에 미치는 효과 (Effects of Vaccinium koreanum on Rat Lens Aldose Reductase and Platelet Aggregation)

  • 주화균;정상훈;조선행;신국현;임순성
    • 생약학회지
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    • 제34권4호통권135호
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    • pp.314-317
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    • 2003
  • Inhibitory effects of the whole extract and isolated compounds from the leaves of Vaccinium koreanum (Ericaceae) on rat lens aldose reductase (RLAR) and on platelet aggregation were investigated for the prevention or the treatment of chronic diabetic complications. Arbutin, isolated from n-butanol fraction of methanol extract, exhibited a potent inhibitory effects on rat platelet aggregation induced by ADP $(IC_{50}=0.12\;{\mu}M)$ and collagen $(IC_{50}=0.039\;{\mu}M)$ and showed same inhibitory activities with positive control, tetramethylene glutaric acid, on RLAR.

중국 장백산(長白山) 일대의 진달래(Rhododendron mucronulatum var. mucronulatum), 산진달래(R. dauricum), 철쭉(R. schlippenbachii)의 분포 및 생태적 특성 (Ecological Characteristics and Distribution of Rhododendron mucronulatum var. mucronulatum, R. dauricum, R. schlippenbachii on Mt. Changbai in China)

  • 강귀옥;현영남;안영희
    • 한국환경과학회지
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    • 제20권4호
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    • pp.527-540
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    • 2011
  • The investigation was made about distribution and ecological characteristics of Rhododendron mucronulatum var. mucronulatum, R. dauricum and R. schlippenbachii on Mt. Changbai in China. The Ericaceae plants are known to be highly ornamental and easy to cultivate. The results of investigations are like followings. The plant species diversity was the highest in habitats of R. mucronulatum var. mucronulatum, followed by those of R. schlippenbachii and R. dauricum. R. mucronulatum var. mucronulatum community was found in the northwest exposure areas of 300m in altitude. Corylus heterophylla, Carex humilis var. nana, Atractylodes japonica species also grew in the R. mucronulatum var. mucronulatum community. R. dauricum communities were widely distributed in the west exposure areas of 1226-1860m above sea level. R. schlippenbachii populations were found in areas of under 300m above sea level, which has dry soil. But humidity of air was relatively high in the place. Artemisia japonica, Lespedeza bicolor and Dactylis glomerata were found around the habitats of R. schlippenbachii. Phalanx type of plants were dominant near the habitats of Ericaceae plants as 61%. Further, there appeared higher plant life totalling to 72 taxa comprising 54 species, 16 varieties and 2 forma with 31 families and 59 genuses at the whole survey area. Among these, Compositae plants excellent in resistance to environment was surveyed the most, accounting for 30.0%.