• Title/Summary/Keyword: Liliaceae

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Vegetation Types and Life-form Composition of Pinus densiflora Forests on the Ridge of the Baekdudaegan in South Korea (백두대간 마루금일대 소나무림의 식생형과 생활형 조성)

  • Cho, Hyun Je
    • Journal of Korean Society of Forest Science
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    • v.98 no.4
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    • pp.472-478
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    • 2009
  • Pine (Pinus densiflora) forests of 58 sites on the ridge of the Baekdudaegan, South Korea were classified by applying the phytosociological method and TWINSPAN. The floristic composition and life-form characteristics of the vegetation types analyzed and documented. The vegetation types were classified into five groups including four groups of Carex humilis var nana type and one group of Abies koreana-Sasa borealis type. Compositae was the most diverse family (26 species), Liliaceae (21 species), Rosaceae (18 species) and Betulaceae (11 species) whereas 27 families were represented by only one species. Taxonomically, Compositae was the most diverse (17 genera), Liliaceae and Rosaceae(12 genera) whereas 41 families were represented by only one genus. The Fagaceae was the most important family in total coverage (19.0) and followed Pinaceae (16.7) and Ericaceae (15.1). Five families such as Compositae, Liliaceae, Rosaceae, Betulaceae, and Umbelliferae contributed little to total coverage, although represented by numerous species. In the correlation between species richness and life forms, the species richness was highly correlated with growth and disseminule forms. In general, the correlation coefficients between life forms represented lower values than those between species richness and life-forms.

Effect of Nutrient Solution for Hydroponics of Liliaceae Leaf Vegetables on the Amount of Ascorbic Acid in Chinese Chive (백합과 전용배양액이 부추의 Ascorbic acid의 함량에 미치는 영향)

  • Huang, Hua-Zi;Zhang, Cheng-Hao;Yang, Eun-Young;Lee, Sang-Gyu;Choi, Ki-Young;Yun, Hyung-Kweon
    • Journal of Bio-Environment Control
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    • v.16 no.3
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    • pp.222-227
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    • 2007
  • In this study, nutrient solution for Liliaceae (Chinese chive) leafy vegetable was developed. The various strength (1/2, 1 and 3/2) of nutrient solution recommended by National Horticultural Research Institute (NSH) was applied to the crops in deep flow technique (DFT) system for 42 days. The growth of Chinese chive were highest in the treatment of 1/2 strength. The proper constitution of nutrient solution developed for liliaceae crops (NSL) was N 12, P 2.5, K 7, Ca 4 and Mg 2 met. The crops were grown two times in March and September to examine the appropriateness of the NSC. As a result, the relative growth rate and the amount of chlorophyll (SPAD value)of Chinese chive treated with NSL were increased 1.11 times. The most important nutrient factor of ascorbic acid were also increased 1.16 times.

Transposable Elements and Genome Size Variations in Plants

  • Lee, Sung-Il;Kim, Nam-Soo
    • Genomics & Informatics
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    • v.12 no.3
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    • pp.87-97
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    • 2014
  • Although the number of protein-coding genes is not highly variable between plant taxa, the DNA content in their genomes is highly variable, by as much as 2,056-fold from a 1C amount of 0.0648 pg to 132.5 pg. The mean 1C-value in plants is 2.4 pg, and genome size expansion/contraction is lineage-specific in plant taxonomy. Transposable element fractions in plant genomes are also variable, as low as ~3% in small genomes and as high as ~85% in large genomes, indicating that genome size is a linear function of transposable element content. Of the 2 classes of transposable elements, the dynamics of class 1 long terminal repeat (LTR) retrotransposons is a major contributor to the 1C value differences among plants. The activity of LTR retrotransposons is under the control of epigenetic suppressing mechanisms. Also, genome-purging mechanisms have been adopted to counter-balance the genome size amplification. With a wealth of information on whole-genome sequences in plant genomes, it was revealed that several genome-purging mechanisms have been employed, depending on plant taxa. Two genera, Lilium and Fritillaria, are known to have large genomes in angiosperms. There were twice times of concerted genome size evolutions in the family Liliaceae during the divergence of the current genera in Liliaceae. In addition to the LTR retrotransposons, non-LTR retrotransposons and satellite DNAs contributed to the huge genomes in the two genera by possible failure of genome counter-balancing mechanisms.

A taxonomic study of Hemerocallis (Liliaceae) in Korea (한국산 원추리속(Hemerocallis)의 분류학적 연구)

  • Hwang, Yong;Kim, Muyeol
    • Korean Journal of Plant Taxonomy
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    • v.42 no.4
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    • pp.294-306
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    • 2012
  • Taxonomic study of the genus Hemerocallis (Liliaceae) in Korea was conducted based on morphological data. H. middendorffii was distinguished from its related taxon H. dumortieri by the trait of coriaceous long bract with green color. H. taeanensis was distinguished from its related taxon H. minor by its odorless flowers, longer perianth tube and leaf length. H. thunbergii was distinguished from its related taxon H. lilioasphodelus by its long perianth tube. Lastly, H. hakuunensis was distinct from its related taxon H. hongdoensis as a result of its extreme branching of scape and short leaf width. From this study, it was revealed that H. minor, H. lilioasphodelus, and H. dumortieri were distributed only in the northern part of the Korean peninsular.

Isolation of Adenosine and Free Amino Acid Composition from the Leaves of Allium tuberosum (부추 잎으로부터 Adenosine의 분리와 유리 아미노산 조성)

  • Park, Jae-Sue;Kim, Jae-Yeun;Lee, Ji-Hyon;Young, Han-Suk;Lee, Tae-Woong
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.21 no.3
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    • pp.286-290
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    • 1992
  • From the leaves of Allium tuberosum (Liliaceae), . the purine nucleoside, adenosine was isolated and its structure was characterized on the basis of spectral data. Besides this nucleoside, the composition and relative content of free amino acids and related compounds, compared to standards determined under identical conditions was also investigated using automatic amino acid analyzer. Major free amino acids were alanine, glutamic acid, aspartic acid and valine.

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Studies on Pollen Foods sold in Korea (한국 시판 화분식품에 관한 연구)

  • 김병각;박설희;천문호;최응칠
    • Journal of Food Hygiene and Safety
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    • v.3 no.1
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    • pp.1-5
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    • 1988
  • Pollens and their preparations that are being sold as a health food in Korea were examined for. morphology and identity. The Iimall packages of sixteen items of the pollen foods were selected and investigated by staining and microscopy. It was shown that all fifteen items except one contained intact pollens which retain their sporoderms. On the basis of their morphological characteristics, they were identified as the pollens of the plants which belong to ten families: Betulaceae, Compositae, Cornaceae, Cgperaceae, Fagaceae, Geraniaceae, Graminae, LeguminoBae, Liliaceae and Pinaceae. Since the sporoderms which can act as a potent allergen to certain persons were not removed, these pollen. foods can not be safe as a food and. may cause systemic allergy. The only preparation that did not show its sporoderm is less likely to cause allergy than the others.

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Phylogenetic classification of Korean vascular flora according to the recent APG classification system (APG 분류체계에 따른 한국 관속식물상의 계통학적 분류)

  • Kim, Ki-Joong;Kim, Young-Dong;Kim, Joo-Hwan;Park, Seon-Joo;Park, Chong-Wook;Sun, Byung-Yun;Yoo, Ki-Oug;Choi, Byoung-Hee;Kim, Sang Tae
    • Korean Journal of Plant Taxonomy
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    • v.38 no.3
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    • pp.197-222
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    • 2008
  • A recently published Korean Flora, "The genera of vascular plants of Korea (GFK)", includes the descriptions and keys for 217 families, 1,044 genera, and 3,209 species of Korean vascular plants. We reclassified these taxa according to the recent APG classification system, which resulted in 64 orders, 204 families, 1,044 genera and 3,209 species. Twenty-two families from the GFK were abandoned because of changes to the familial delimitations in the APG system. In contrast, the number of families in the Liliaceous group was increased. The Liliaceae in the GFK included 31 genera and 109 species. These taxa are now assigned to 10 families in four different orders including Liliales, Asparagales, Alismatales, and Dioscoreales because of the drastic changes to the monocot classification system in the past 20 years. In addition, the family name of the Aucubaceae was changed to Garryaceae. As a result, the number of families in the GFK has been reduced to 204. The results were summarized in four tables and two figures at the levels of unofficial higher taxonomic hierarchies, orders, families and genera. This new information can provide a guidelines for selecting the phylogenetic analysis unit for the Korean tree of life (KTOL) project. Futhermore, the updated classification system also provides an important summarization for the systematic community for placing the Korean flora in a modern phylogenetic context.