• 제목/요약/키워드: taxonomic characteristics

검색결과 377건 처리시간 0.025초

한국산(韓國産) 광대버섯속(屬)에 대(對)한 분류학적(分類學約) 연구(硏究) (The Taxonomic Study on the Genus Amanita in Korea)

  • 김양섭
    • 한국균학회지
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    • 제4권1호
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    • pp.1-10
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    • 1976
  • 본연구(本硏究)는 우리나라에 발생(發生)하는 야생(野生)버섯의 분포상(分布狀)을 조사(調査)하기 위해 1972년(年)부터 1976년(年)까지 수원(水源) (광릉(光陵), 대관령(大關嶺), 지리산(智異山)) 및 한라산(漢拏山) 등지(等地)에서 일차적(一次的)으로 독성(毒性)이 강(强)한 버섯들이 속(屬)해있는 한국산(韓國産) 광대버섯속(屬)에 대(對)하여 시행(施行)한 결과(結果), 새로이 검토(檢討)된 한국미기록(轉國未記綠) 3종(種) [Amanita vaginata (Fr.) virt. var. puncta(Cleland & Cheel) Gilbert, A. flavipes Imai]이 첨부(添附)되어 광대버섯 25종(種)을 분류(分類)하였고, 광대버섯 25종(種)을 3아속(亞屬)에 배치기재(配置記載)하였다. 그외 (Rhodophyllus murrii(Berk. et Curt.) Sing. f. albus (Hiroe) Hongo이 한국미기록(轉國未記綠)으로 분류(分類)되었다. 한국미기록(轉國未記綠) 4종(種)에 대(對)하여 우리나라 이름을 명명(命名)하였다.

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한국산 Chelon속 (Pisces, Mugilidae) 어류의 분류학적 재검토 (Taxonomic Revision of the genus Chelon (Pisces, Mugilidae) from Korea)

  • 김용억;김진구
    • 한국어류학회지
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    • 제10권2호
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    • pp.250-259
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    • 1998
  • 본 연구는 한국 전 연안에 서식하는 등줄숭어 및 가숭어의 정확한 분류학적 위치를 알고자 그들의 외부형태를 비교 연구하였다. 등줄숭어는 주로 남부 연안에만 출현하며, 몸의 동쪽 정중선을 따라 융기연을 형성하는 특징을 가지는 반면에, 가숭어는 전 연안에서 출현하며 머리가 심하게 종편되어 두 종의 식별이 용이하다. 가숭어를 5집단으로 나누어 계측형질을 비교한 결과 대부분 집단 간에 잘 일치하였지만 군산집단만이 뒷지느러미 높이와 꼬리자루길이에서 다소 차이를 나타내었다. 등줄숭어와 가숭어는 계수형질에서 대부분 중복되어 계수형질에 의한 동정은 어렵지만, 유문수와 체측종렬린수에서 구분된다.

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Evaluation of taxonomic validity of four species of Acanthamoeba: A. divionensis, A. paradivionensis, A. mauritaniensis, and A. rhysodes, inferred from molecular analyses

  • LIU Hua;MOON Eun-Kyung;YU Hak-Sun;JEONG Hae-Jin;HONG Yeon-Chul;KONG Hyun-Hee;CHUNG Dong-Il
    • Parasites, Hosts and Diseases
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    • 제43권1호
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    • pp.7-13
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    • 2005
  • The taxonomy of Acanthamoeba spp., an amphizoic amoeba which causes granulomatous amoebic encephalitis and chronic amoebic keratitis, has been revised many times. The taxonomic validity of some species has yet to be assessed. In this paper, we analyzed the morphological characteristics, nuclear 18s rDNA and mitochondrial 16s rDNA sequences and the Mt DNA RFLP of the type strains of four Acanthamoeba species, which had been previously designated as A. divionensis, A. parasidionensis, A. mauritaniensis, and A. rhysodes. The four isolates revealed characteristic group II morphology. They exhibited 18S rDNA sequence differences of $0.2-1.1\%$ with each other, but more than $2\%$ difference from the other compared reference strains. Four isolates formed a different clade from that of A. castellanii Castellani and the other strains in morphological group lion the phylogenetic tree. In light of these results, A. paradivionensis, A. divionensis, and A. mauritaniensis should be regarded as synonyms for A. rhysodes.

Neofusicoccum ribis Associated with Leaf Blight on Rubber (Hevea brasiliensis) in Peninsular Malaysia

  • Nyaka Ngobisa, A.I.C.;Zainal Abidin, M.A.;Wong, M.Y.;Wan Noordin, M.W.D.
    • The Plant Pathology Journal
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    • 제29권1호
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    • pp.10-16
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    • 2013
  • Hevea brasiliensis is a natural source of rubber and an important plantation tree species in Malaysia. Leaf blight disease caused by Fusicoccum substantially reduces the growth and performance of H. brasiliensis. The aim of this study was to use a combination of both morphological characteristics and molecular data to clarify the taxonomic position of the fungus associated with leaf blight disease. Fusicoccum species were isolated from infected leaves collected from plantations at 3 widely separated locations - Selangor, Perak, and Johor states - in Peninsular Malaysia in 2010. All the isolates were identified according to their conidial patterns and DNA sequences generated from internal transcribed spacers (ITS1 and ITS2), the 5.8S rRNA, and an unknown locus (BotF15) containing microsatellite repeats. Based on taxonomic and sequence data, Neofusicoccum ribis was identified as the main cause of leaf blight disease in H. brasiliensis in commercial plantations in Malaysia. A pathogenicity trial on detached leaves further confirmed that N. ribis causes leaf blight disease. N. ribis is an important leaf pathogen, and its detection in Malaysia has important implications for future planting of H. brasiliensis.

Taxonomic Study of Amanita Subgenus Lepidella and Three Unrecorded Amanita Species in Korea

  • Kim, Chang Sun;Jo, Jong Won;Kwag, Young-Nam;Kim, Jae-Hyeun;Shrestha, Bhushan;Sung, Gi-Ho;Han, Sang-Kuk
    • Mycobiology
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    • 제41권4호
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    • pp.183-190
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    • 2013
  • Amanita Pers. is a well-known monophyletic mushroom genus with a broad distribution. However, the diversity of Korean Amanita species has been underestimated, and most taxonomic studies conducted in Korea have only investigated their morphological characteristics. This approach is frequently insufficient for correct identification in fungal classification; therefore, we constructed a phylogeny of Amanita subgen. Lepidella in order to understand the phylogenetic placements of 16 Amanita specimens collected in Korea in 2012. The phylogeny constructed using the sequence data of the internal transcribed spacers and the partial large subunit of ribosomal RNA identified nine Amanita species (A. citrina, A. excelsa var. spissa, A. flavipes, A. fritillaria, A. oberwinklerana, A. pallidorosea, A. rubescens, A. subjunquillea, and A. volvata); of these, A. fritillaria, A. oberwinklerana, and A. pallidorosea are new to Korea.

한국 미기록속 Palorus Mulsant (딱정벌레목: 거저리과)의 보고 (First Record of the Genus Palorus Mulsant in Korea (Coleoptera: Tenebrionidae: Palorini))

  • 홍기정;김무성
    • 한국응용곤충학회지
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    • 제54권3호
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    • pp.211-215
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    • 2015
  • 한국산 거저리과의 미기록인 Palorus Mulsant에 속하는 2종인 넓은이마쌀도둑거저리(신청)(Palorus ratzeburgii (Wissman, 1848))와 좁은 이마쌀도둑거저리(신칭)(P. subdepressus (Wollaston, 1864))를 보고한다. 이들 2종은 열대 및 아열대 지역에서 저장곡물해충으로 중요하지만, 국내 정미소에서는 아주 낮은 밀도로 발생하고 있다. 이들 미기록종에 대한 성충 사진, 진단형질, 저장곡물의 검역해충인 본 속의 6종에 대한 검색표를 제공하였다.

애기황새냉이(배추과)의 분류학적 재검토 (Taxonomic review of Cardamine manshurica (Kom.) Nakai (Brassicaceae))

  • 김윤영;지성진;오병운
    • 식물분류학회지
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    • 제45권2호
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    • pp.136-144
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    • 2015
  • 원기재문과 기준표본을 근거로 애기황새냉이(Cardamine manshurica (Kom.) Nakai)의 분류학적 실체와 형태적 특성을 재검토하였다. 그 결과, 애기황새냉이는 유럽에 분포하는 좀냉이(C. parviflora L.)와는 다른 분류군으로, 형태학적으로 황새냉이(C. flexuosa With)와 유사하나, 꽃과 열매의 크기가 작고 개화기가 빠른 특징에 의해 황새냉이를 비롯한 근연분류군과 종 수준에서 명확하게 구분되었으며, nrDNA를 이용한 ITS 구간을 이용한 분자생물학적 분석 결과에 의해서도 지지되었다. 따라서 본 분류군을 종으로 처리하는 것이 타당하다고 판단하였고, 학명은 C. manshurica (Kom.) Nakai를 정명으로 하였으며, 국명은 황새냉이보다 키가 작고 꽃이 소형인 특징에 기인하여 '애기황새냉이'를 채택하였다.

Ecological Correlates of Flowering Seasons in Korean Angiosperms

  • Kang, Hye-Soon;Jang, Sun-Young
    • Journal of Ecology and Environment
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    • 제29권4호
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    • pp.353-360
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    • 2006
  • Ecological correlates of flowering times often are examined to infer evolutionary mechanisms for flowering time diversities. We examined ecological characteristic associations such as growth habits and pollination modes with flowering times among 3,037 Korean angiosperms experiencing strong climatic seasonalities. We first examined taxonomic membership effects on flowering times across diverse taxonomic levels. Phylogeny constrained flowering times at all levels down to the genus level. We then analyzed the effects of ecological characteristics using subset data consisting of species randomly selected from each genus to control phylogenetic effects. The commonly observed patterns of early flowering of woody species in temperate regions existed. Spring flowering shrubs and trees, however, both being woody, were involved with biotic and abiotic vectors, respectively. In two herbaceous groups of annuals and perennials, annuals flowered later in the growing season than perennials although both herbs tended to be associated with abiotic vectors when flowering in autumn. These results support our hypothesis that species able to decouple vegetative and reproductive growth flower in spring's dry season, but species with different habits, even when they flower within the same season, are subjected to different selective pressures for efficient pollination.

한국산 하늘지기속(사초과)의 분류학적 연구 (A taxonomic study of the genus Fimbristylis Vahl (Cyperaceae) in Korea)

  • 김종환;김무열
    • 식물분류학회지
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    • 제48권4호
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    • pp.301-330
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    • 2018
  • 한국에 분포하는 사초과의 하늘지기속(Fimbristylis Vahl) 식물들에 대해 외부 형태학적 측면에서 종합적으로 연구한 결과 그동안 식별형질로서의 중요성을 인정받지 못했던 약의 크기나 화주의 길이가 유사분류군간의 식별형질로 유의미한 것으로 판명되었다. 국내 문헌에 기록은 있으나 국내 표본관에 채집표본이 없어 한국 내 자생 여부가 불명확했던 쇠하늘지기 Fimbristylis ovata (Burm.f.) J. Kern가 제주도 마라도 초지에 생육하는 것이 확인되었다. 따라서 한국산 하늘지기속 식물은 4개절(sect)로 구분되며, 19종 2변종으로 총 21분류군으로 확인되었다.

Taxonomic Study on Six Yeast Species Unlisted in the National Species List of Korea

  • Chorong Ahn;Soonok Kim;Changmu Kim
    • 한국균학회지
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    • 제51권1호
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    • pp.7-24
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    • 2023
  • More than five hundreds of yeast species (including 9 variants) encompassing 142 genera and 48 classes of 2 phyla exist in Korea. However, only 173 species have been cataloged in the National Species List of Korea (NSLK), the backbone reference to claim sovereign rights over biological resources, as of December 2021, due to the lack of taxonomic descriptions, although some of these species are extensively used in industry. The present pilot study investigated the taxonomy of strains belonging to the six most widely used or frequently isolated yeast species (Meyeromyma guilliermondii, Saccharomyces cerevisiae, Saccharomycopsis fibuligera, Wickerhamomyces anomalus, Candida tropicalis, and Papiliotrema flavescens) to include these species in the NSLK. Strains with diverse habitats and geographic origins were retrieved from the National Institute of Biological Resources culture collection. These strains clustered in the same clade as the type strains of the designated species according to phylogenetic analysis of the D1/D2 sequences. Moreover, we described the cell morphology and physiological characteristics of representative strains of each species. This study suggests that these six species are indigenous to Korea and can be accordingly listed in the NSLK.