• 제목/요약/키워드: rhododendrons

검색결과 6건 처리시간 0.021초

흑염소에서의 철쭉으로부터 유래된 그레이아노톡신 중독증 증례 (Grayanotoxin poisoning in a black goat)

  • 김지현;정지열;최은진;신은경;정지연;이경현;김선춘;소병재
    • 한국동물위생학회지
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    • 제40권4호
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    • pp.277-280
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    • 2017
  • A 3 year-old black goat was presented to Animal and Plant Quarantine agency for diagnosis in June, 2017. She was intaken feed with Rhododendron schlippenbachii the day before death. The clinical signs included loss of appetite, lethargy, hypersalivation, astasia, yelling. At necropsy, foamy discharge were observed in the airway. Histologically, foreign body, eosinphil and macrophges was observed in alveolar lumen of lung. Grayanotoxin derived from Rhododendrons was detected in ruminal contents. Based on the pathological and toxine examination, we diagnosed this case as grayanotoxin poisoning in a black goat.

국내 화훼류에 발생하는 깍지벌레(진딧물아목)의 종류 (Scale Insects (Sternorrhyncha) Occurring on Flowering Plants in Korea)

  • 권기면;한만종;최동로
    • 한국응용곤충학회지
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    • 제44권1호
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    • pp.51-59
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    • 2005
  • 화훼류에서 발생하는 깍지벌레의 종을 파악하기 위해 2003년에 개나리 등 15종류의 화훼류에서 채집한 표본과 농업과학기술원에 소장하고 있는 화훼류에서 채집된 표본을 대상으로 동정한 결과, 5과 29속 45종의 깍지벌레가 확인되었다. 작물별로 조사된 깍지벌레는 개나리에서 3종, 국화에서 4종, 동백나무에서 15종, 목련에서 7종, 무궁화에서 3종, 배롱나무에서 1종, 장미에서 6종, 철쭉나무류에서 7종, 관음죽에서 2종, 벤자민고무나무에서 3종, 사철나무에서 12종, 주목에서 5종, 행운목에서 2종, 난류에서 6종 그리고 선인장류에서는 2종이 동정되었다. 한국 미기록 종으로는 동백나무에서 동백솜깍지벌레(신칭, Pulvinaria floccifera (Westwood))와 검은조개깍지벌레(신칭, Pseudaonidia paeoniae (Cockerell)), 무궁화에서 무궁화솜깍지벌레(신칭, Pulvinaria citricolar Kuwana)가 확인되었다.

'만병초' (Rhododendron brachycarpum)에 의한 전신 중독 2례 (Two Cases of Rhododendron Brachycarpum Intoxication)

  • 옥택근;김윤성;박찬우;문중범;이봉기;조병렬;김용훈;김성은;최기훈;서정열;안희철;안무업;조준휘
    • 대한임상독성학회지
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    • 제4권2호
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    • pp.143-146
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    • 2006
  • Historically, the common folk have made use of various wild herbs for both food and medicinal purposes. However, the misuse of these wild herbs can lead to adverse consequences, including severe poisoning in some cases. In cases of poisoning from wild herbs, patients can exhibit a variety of symptoms depending on the herbs involved, which in addition to gastrointestinal symptoms may include hemodynamic alteration and abnormal neurologic signs. In the present case, two patients were admitted to the emergency room with symptoms of toxicity after consuming Rhododendron brachycarpum liquor. Rhododendron brachycarpum and other wild herbs contain the toxic material grayanotoxin. Because of its serious toxic symptoms, great caution must be exercised in using rhododendrons for food and medicinal purposes.

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식생을 이용한 방풍책이 눈잣나무 유묘에 미치는 영향 (Effects of Windbreak Fences Composed of Natural Vegetation on Dwarf Siberian Pine (Pinus pumila) Seedlings)

  • 임효인;채승범;이선욱;구자정
    • 한국환경복원기술학회지
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    • 제23권4호
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    • pp.59-67
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    • 2020
  • In this study, the effects of windbreak fences composed of natural vegetation on one-year-old seedlings were analyzed to develop restoration methods for an endangered subalpine species, the dwarf Siberian pine (Pinus pumila (Pall.) Regel). One-year-old seedlings were planted in 2016 by sowing seeds that had been collected from the Daecheongbong area on Mt. Seoraksan, South Korea, in 2014. The area near Daecheongbong was selected as the experimental site, and treatment and control plots (2m×2m) were installed at the site. To analyze the effects of wind protection, windbreak fences were constructed in the treatment plots using hairy Korean rhododendrons (Rhododendron mucronulatum Turcz. var. ciliatum Nakai) from the surrounding area and weather stations were installed to investigate atmospheric temperature, humidity, and wind speed. In all control plots without windbreak fences, dwarf Siberian pine seedlings were killed by strong winds seven months after planting. In contrast, the average survival rate of the seedlings in treatment plots was 96.7% after seven months, 64.2% after two years, and 45% after three years, with most (85.3%) of the seedlings showing good initial root establishment. Accordingly, windbreak fences composed of natural vegetation are suitable for promoting the early establishment of seedlings in the restoration of dwarf Siberian pine stands.

Phenological Characteristics of Rhododendron Species in Temperate Mixed Broad-leaved Forests of Arunachal Himalaya, India

  • Paul, Ashish;Khan, Mohamed Latif;Das, Ashesh Kumar
    • Journal of Forest and Environmental Science
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    • 제34권6호
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    • pp.435-450
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    • 2018
  • Phenological events of four Rhododendron tree species (viz. R. arboreum, R. arboreum ssp. delavayi var. delavayi, R. barbatum and R. kesangiae) was monitored in temperate mixed broad-leaved forests of Arunachal Pradesh, India. Phenological events like flower bud formation, flowering, fruit setting, fruit maturing, seed dispersal, leaf bud formation, leaf flushing, and leaf shedding were recorded. Indices i.e., phenophase sequence index (PSI), active phenophasic period of the species (APS) and index of reproductive/vegetative activity (RVA) were also calculated. Present study revealed that bark consistency, growth form and leaf pattern of the studied species have showed variations among the species. Rhododendron species exhibited the phenological events overlapping with other phenophases. The peak flower bud formation was observed during the winter; R. arboreum ssp. delavayi var. delavayi start flowering from December, while the flowering in rest three species exhibited during February to April. Fruit setting occurred during summer to autumn while fruit maturation revealed peak during November. Leaf bud formation illustrated two peaks in April and May, leaf flushing exhibited peak in June, while leaf shedding peaked during October to November. Active phenophasic period of the species were found 12 months, which revealed that species engage in various phenophase activities throughout the year. Phenophase sequence index ranged between 0.8 to 0.9 (PSI ${\geq}0.6$), signifies that species have a sequential arrangement of phenophases. Index of reproductive/vegetative activity of the species exemplified >1, indicate that the reproductive phenophases were dominance over vegetative phenophases. The study have provided substantial insight on the life cycle events of Rhododendron species and ecological approaches for further scientific study with recent climate change and effective management and conservation.

지자체가 선정한 현대팔경에 나타난 경관 선호 양상 (A Local Governments' Preferences in Selecting Modern Eight Scenic Landscapes)

  • 소현수
    • 한국전통조경학회지
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    • 제38권1호
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    • pp.92-102
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    • 2020
  • 우리나라 78개 지자체가 홈페이지에 제시한 현대팔경 78개와 팔경을 구성하는 816개 경(景)을 통해 본 경관 선호 양상은 다음과 같다. 첫째, 경으로 선정된 자연환경 요소는 지형경관인 산, 대(臺), 암, 바위와 같은 산경요소와 하천, 해양, 호소(湖沼)경관으로 구분되는 수경요소가 대부분을 차지한다. 여기에 소나무, 은행나무, 산수유, 이팝나무 등 노거수, 가로수 길과 숲, 그리고 계절 경관을 제공하는 철쭉, 진달래, 연꽃, 갈대, 억새와 같은 식물요소가 포함된다. 둘째, 인문환경 요소로 선정된 경의 과반수가 묘역, 산성과 읍성, 전통마을, 별서누정, 사찰 등 역사문화유산이다. 다음으로 재래시장, 전시관, 테마파크, 해수욕장, 음식 거리 등 여가관광시설과 산책로, 광장, 공원, 식물원 등 녹색기반시설, 마지막으로 목장, 폐탄광, 철도역, 항구, 다리 등의 산업유산이 경으로 선정되었다. 셋째, 현대팔경에는 지역 대표시설, 특산물, 축제처럼 조망과 관련 없는 대상이 포함되었다. 넷째, 현대팔경의 과반수가 8개 경으로 구성되었지만, 홍보대상을 늘리기 위하여 20개, 38개, 100개로 구성된 것도 있다. 다섯째, 전래팔경과 현대팔경을 함께 소개하고, 주제를 달리한 두 개의 현대팔경을 만든 경우, 일부 지역으로 한정하여 현대팔경을 선정하는 등 여러 개의 현대팔경을 제시한 지자체가 있다. 또한 한 개의 경에 다수의 장소명을 넣은 경우도 많다. 여섯째, 경의 명칭에 '낙안(落雁)'을 사용한 소상전형과 '효종(曉鐘)', '낙조', '일몰', '야경', '여명', '일출'을 명칭에 넣고 경관과 구름, 노을, 달, 눈을 표현한 소상유사형 현대팔경, 관광 행태를 드러내는 명소체험형 현대팔경으로 구성된다. 대부분은 장소의 명칭만으로 인지도를 높인 명승형 현대팔경이다. 일곱째, 현대팔경의 명명 방식은 경물과 경색을 명시한 한자를 조합한 소상팔경식 명명 대신 글자 숫자만 네 개로 맞춘 경우, 장소를 특화하는 수식어를 넣은 경우 등으로 다양했다.