• 제목/요약/키워드: Orchidaceae

검색결과 73건 처리시간 0.025초

신분류군 탐라사철란(난과) (A New Taxon of Goodyera (Orchidaceae): G. × tamnaensis)

  • 이창숙;여성희;이경서;이남숙
    • 식물분류학회지
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    • 제40권4호
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    • pp.251-254
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    • 2010
  • 제주도에서 발견된 사철란(난과)속의 신분류군을 정기준표본에 근거한 분류군 기재, 해부도 및 서식지에서의 식물사진을 제시하여 탐라사철란(Goodyera ${\times}$ tamnaensis N.S. Lee, K.S. Lee, S.H. Yeau & C.S. Lee, sp. nov.)으로 신종 처리하였다. 탐라사철란은 잎맥, 잎 표면무늬와 잎의 표피세포 형태, 잎, 꽃과 포의 색, 곁 꽃받침의 모양, 털의 길이 등 형태적 특징에 의해 사철란과 흰줄사철란(털사철란)의 교배종으로 추정된다.

A visual identification key to Orchidaceae of Korea

  • Seo, Seon-Won;Oh, Sang-Hun
    • 식물분류학회지
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    • 제47권2호
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    • pp.124-131
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    • 2017
  • Species identification is a fundamental and routine process in plant systematics, and linguistic-based dichotomous keys are widely used in the identification process. Recently, novel tools for species identification have been developed to improve the accuracy, ease to use, and accessibility related to these tasks for a broad range of users given the advances in information and communications technology. A visual identification key is such an approach, in which couplets consist of images of plants or a part of a plant instead of botanical terminology. We developed a visual identification key for 101 taxa of Orchidaceae in Korea and evaluated its performance. It uses short statements for image couplets to avoid misinterpretations by users. The key at the initial steps (couplets) uses relatively easy characters that can be determined with the naked eye. The final steps of the visual key provide images of species and information about distributions and flowering times to determine the species that best fit the available information. The number of steps required to identify a species varies, ranging from three to ten with an average of 4.5. A performance test with senior college students showed that species were accurately identified using the visual key at a rate significantly higher than when using a linguistic-based dichotomous key and a color manual. The findings presented here suggest that the proposed visual identification key is a useful tool for the teaching of biodiversity at schools, for the monitoring of ecosystems by citizens, and in other areas that require rapid, easy, and accurate identifications of species.

은대난초속(난초과)의 미기록 식물: 민은난초 (First record of Cephalanthera erecta var. oblanceolata (Orchidaceae) from Korea)

  • 이창숙;엄상미;최선아;이남숙
    • 식물분류학회지
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    • 제39권4호
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    • pp.296-298
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    • 2009
  • 이전에 부탄으로부터 알려진 은대난초속(난과)의 민은난초 (Cephalanthera erecta var. oblanceolata N. Pearce & P. J. Cribb)가 경기도 화성시 서신면 전곡리의 저지대에서 발견되었다. 이 식물은 등꽃받침과 곁꽃잎이 도피침형이며, 곁꽃받침이 피침형이고, 거가 없는 단순한 꽃잎모양의 입술꽃잎에 의하여 은난초와 구별된다. 국명은 거가 없는 입술꽃잎을 갖는데 근거하여 민은난초로 신칭하였다. 민은난초의 형태적 특징과 도해를 사진과 함께 제시하였다.

The role of cytogenetic tools in orchid breeding

  • Samantha Sevilleno Sevilleno;Raisa Aone Cabahug-Braza;Hye Ryun An;Ki‑Byung Lim;YoonJung Hwang
    • 농업과학연구
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    • 제50권2호
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    • pp.193-206
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    • 2023
  • Orchidaceae species account for one-tenth of all angiosperms including more than 30,000 species having significant ecological, evolutionary, and economic importance. Despite Orchidaceae being one of the largest families among flowering plants, crucial cytogenetic information for studying species diversification, inferring phylogenetic relationships, and designing efficient breeding strategies is lacking, except for 10% or less of orchid species cases involving mostly chromosome number or karyotype analysis. Also, only approximately 1.5% of the identified orchid species from less than a hundred genera have genome size data that provide crucial information for breeders and molecular geneticists. Various molecular cytogenetic techniques, such as fluorescence in situ hybridization (FISH) and genomic in situ hybridization (GISH), have been developed for determining ploidy levels, analyzing karyotypes, and evaluating hybridity, in several ornamental crops including orchids. The estimation of genome size and the determination of nuclear DNA content using flow cytometry have also been employed in some Orchidaceae subfamilies. These different techniques have played an important role in supplementing beneficial knowledge for effective plant breeding programs and other related plant research. This review focused on orchid breeding summarizes the status of current cytogenetic tools in terms of background, advancements, different techniques, significant findings, and research challenges. Principal roles and applications of cytogenetics in orchid breeding as well as different ploidy level determination methods crucial for breeding are also discussed.

다도새우난초(난초과): 새우난초속의 한반도 미기록종 (First record of Calanthe (C. × kibanakirishima F. Maek., Orchidaceae) in Korea)

  • 홍행화;김종선;장길훈;임형탁
    • 식물분류학회지
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    • 제40권3호
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    • pp.183-185
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    • 2010
  • 전라남도 신안군 흑산면에서 한반도 미기록종인 다도새우난초(Calanthe ${\times}$ kibanakirishima F. Maek.)를 발견하여 보고한다. 다도새우난초는 신안새우난초와 비슷하지만 화색이 다르고, 거가 짧고 더 굵다는 점에서 다르다. 국내의 다른 새우난초속 종들과는 잎의 뒷면에 털이 있고 거가 발달한다는 점에서 쉽게 구별된다.

The Constituents of the Aerial Part of Gastrodia elata Blume

  • Liu, Xiang Qian;Baek, Wan-Sook;Ahn, Duk-Kyun;Choi, Ho-Young;Yook, Chang-Soo
    • Natural Product Sciences
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    • 제8권4호
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    • pp.137-140
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    • 2002
  • From the MeOH extract of the aerial part of Gastrodia elata Blume (GEB) (Family: Orchidaceae), eight compounds have been isolated on repeated column chromatography, and their structures were elucidated as dotriacontanoic acid (1), beta-sitosterol (2), 4-hydroxybenzaldehyde (3), docosanoic acid oxiranylmethyl ester (4), hentriacotanoic acid (5), octadecanoic acid (6), benzoic acid (7) and gastrodin (8) on the basis of their spectral evidences including EI-Mass and 2D-NMR spectrum. All of them were obtained from the aerial part of Gastrodia elata Blume for the first time, in which compound 4 is a novelty to our best knowledge. It is also known that a phenolic glucoside, gastrodin is a major constituent just like Gastrodia rhizome.

Taxonomic revision of the Liparis makinoana complex (Orchidaceae; Epidendroideae; Malaxidae) in Korea

  • Jungsim LEE;Dong Chan SON
    • 식물분류학회지
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    • 제53권2호
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    • pp.110-125
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    • 2023
  • On the Korean Peninsula, eleven species of the genus Liparis (Orchidaceae) have been recorded, and three species are presumed to belong to the L. makinoana complex. These are L. koreana, L. japonica, and L. makinoana. Liparis japonica and L. makinoana are distributed in South Korea, but the distribution of L. koreana has not been confirmed. Liparis japonica and L. makinoana are morphologically very similar, making it difficult to classify them. Recently, L. japonica and L. makinoana in Japan were reclassified into three species. One of them is an amended species of L. makinoana, and the other two species were described as new species, specifically L. longiracemosa and L. suzumushi. It was confirmed that the three species are distributed in South Korea. Here, we provide a distribution map, photographs of the three new species, and a comparison of their morphological characteristics.

A new forma of Cremastra appendiculata Makino from Korea

  • Kil, Bong-Seop
    • Plant Resources
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    • 제3권3호
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    • pp.223-225
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    • 2000
  • A new forma, Cremastra appendiculta Makino f. albiflora B. Kil, f. nov. is described from Naejangsan, Jeollabuk-do, Korea. It is easily distinguished from C. appendiculata by having light white-green flower of outer perianth segment and white color of inner perianth segment of the flower.

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