• Title, Summary, Keyword: genus

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A Phylogenetic Study of Staurastrum Complex (Chlorophyta) Inferred from coxIII Sequence Analysis (coxIII 유전자 염기서열 분석에 의한 팔장고말 COMPLEX(녹조식물문)의 계통 연구)

  • Moon, Byeong-Ryeol;Lee, Ok-Min
    • ALGAE
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    • v.19 no.3
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    • pp.153-160
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    • 2004
  • The intergeneric relationship of Staurastrum complex including genus Arthrodesmus and Xanthidium was studied on the basis of mitochondrial coxⅢ sequence variation. Teiling's suggestion that Staurodesmus was an independent genus apart from genus Staurastrum, Arthrodesmus and Cosmarium was also reevaluated. The phylogeny inferred from coxⅢ gene was not consistent with morphological characteristics of Staurastrum complex. Genus Staurastrum was closely related to genus Xanthidium in the phylogenetic analysis of coxⅢ, but distant to genus Staurodesmus. The taxonomic treatment of genus Staurodesmus as an independent entity could not be determined, because Staurodesmus did not firm a monophyletic Glade. Therefore, genus Staurodesmus could not be treated as an independent genus as Prescott et al. (1982) claimed.

Are the genus Moniliella and Trichosporonoides closely related in molecular taxonomic relationship\ulcorner (분자생물학적 방법을 이용한 Moniliella 속과 Trichosporonoides 속의 분류학적 고찰)

  • 신기선;신용국;태경환;권오유;이상한
    • Journal of Life Science
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    • v.11 no.2
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    • pp.133-137
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    • 2001
  • The molecular taxonomic relationship of nine species in the genus Moniliella Stolk & Dakin and Trichosporonoides Haskins & Spencer and six species of other yea나-like fungi was examined by sequencing analysis of large subunit rDNA D1/D2 variable domain. The fifteeen species fell into two major groups corresponding with their genetic relationships. The nine species of the genus Moniliella and Trichosporonoides were placed at the same cluster. similarity values based on the D1/D2 domain sequences were 45.4-100% among species of genus Moniliella, 45.2-84.4% among genus Trichosporonoides species, and 45.6-90.1% among species of genus Moniliella and Trichosporonoides. Identical sequence similarity was observed between M. suaveolens var. nigra and M. suaveolens. A colse relationship of M. mellis. and M. acetoabutens is observed. The result of this study provided and insight into the genetic origins of genus Moniliella and Trichosporonoides species as well as their genetic relationships. Genus Moniliella and Trichosporonoides are closely related to each other based on sequence analysis of the large subunit rDNA D1/D2 region and we suggest combination of the genus Moniliella and Trichosporonoides to single genus.

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New records of genus Tripos (Dinophyceae) around Jeju Island, Korea

  • Lee, Joon-Baek;An, So-Jeong;Chung, Han-Sik;Shah, Md. Mahfuzur Rahman
    • Journal of Ecology and Environment
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    • v.37 no.4
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    • pp.271-284
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    • 2014
  • The morphology of 26 species of the genus Tripos was studied among a total of 51 species of this genus, which were taken using $20{\mu}m$ net samples from June 2006 to January 2011 at 14 stations around Jeju Island. Of these, 23 species were first described as new records in Korean waters and 3 species were redescribed. Short descriptions and synonyms are given for each species in the present study. The dinoflagellates of family Ceratiaceae include marine and freshwater species, belonged to originally the genus Ceratium. Recently, this genus were divided into a new combination with the genus Tripos, which contains the marine species, and the original genus Ceratium, including the freshwater species. We used the Tripos genus for the marine species in this study as a valid name.

Characterization of Bacteria and Their Antibiotic Sensitivities in Porcine Liquid Semen (돼지 액상정액 내 세균오염과 항생제 감수성에 관한 연구)

  • Ryu, Jae-Weon;Cho, Kyu-Ho;Hong, Joon-Ki;Kim, Myung-Jick;Park, Jun-Chul;Jung, Il-Byung;Kim, In-Cheul
    • Journal of Animal Science and Technology
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    • v.50 no.6
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    • pp.793-798
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    • 2008
  • The semen collection process in the porcine is far from being a sterile procedure. Consequently, porcine ejaculates commonly contain bacterial contaminants. The aim of this study is to identify the bacteria in porcine semen and to find the antibiotics resistance of bacteria. Twelve porcine originating from four AI center were used to collect semen. Bacteria were identified by automated instrument for rapid organism identification system and bacterial sensitivities of 8 antibiotics were tested. The Bacterial contaminants of Staphylococcus genus(37.8%), Proteus genus(7.0%), Bacillus genus (6.1%), Pasteulla genus(5.7%), Acinetobacte genus(5.2%), Serratia genus(4.3%) and others(33.9%) were frequently isolated. However, amikacin showed higher antibiotic sensitivity than other antibiotics. General sanitation protocols can contribute partly to inhibit the bacterial contamination, with monitoring boar housing, semen collection areas and the extended semen. But, proper selection of preservative antibiotics by microbial sensitivities can minimize the influence of bacteria.

Characteristic Genera of Closed Orientable 3-Manifolds

  • KAWAUCHI, AKIO
    • Kyungpook Mathematical Journal
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    • v.55 no.4
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    • pp.753-771
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    • 2015
  • A complete invariant defined for (closed connected orientable) 3-manifolds is an invariant defined for the 3-manifolds such that any two 3-manifolds with the same invariant are homeomorphic. Further, if the 3-manifold itself can be reconstructed from the data of the complete invariant, then it is called a characteristic invariant defined for the 3-manifolds. In a previous work, a characteristic lattice point invariant defined for the 3-manifolds was constructed by using an embedding of the prime links into the set of lattice points. In this paper, a characteristic rational invariant defined for the 3-manifolds called the characteristic genus defined for the 3-manifolds is constructed by using an embedding of a set of lattice points called the PDelta set into the set of rational numbers. The characteristic genus defined for the 3-manifolds is also compared with the Heegaard genus, the bridge genus and the braid genus defined for the 3-manifolds. By using this characteristic rational invariant defined for the 3-manifolds, a smooth real function with the definition interval (-1, 1) called the characteristic genus function is constructed as a characteristic invariant defined for the 3-manifolds.

: IV. A Systematic Revision of the Genus Habronyx Foerster, Therion Curtis and Heteropelma Wesmael by using Scanning Electron Microscope

  • Lee, Jong-Wook;Kim, Chang-Whan
    • The Korean Journal of Zoology
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    • v.27 no.4
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    • pp.241-254
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    • 1984
  • In the present paper, Genus Habronyx Foerster, Genus Habronyx Foerster, Genus Therion Curtis and Genus Heteropelma Wesmael of tribe Theriini were studied by using scanning electron microscope. The authors tried to find out distinct new characters for those genera because tribe Theriini was very similiar to each other. Ten species are recognized, of which Habronyx (Camposcopus) sonani (Uchida), 1958 is newly recorded from Korea.

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REGULAR GENUS AND PRODUCTS OF SPHERES

  • Spaggiari, Fulvia
    • Journal of the Korean Mathematical Society
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    • v.47 no.5
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    • pp.925-934
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    • 2010
  • A crystallization of a closed connected PL manifold M is a special edge-colored graph representing M via a contracted triangulation. The regular genus of M is the minimum genus of a closed connected surface into which a crystallization of M regularly embeds. We disprove a conjecture on the regular genus of $\mathbb{S}\;{\times}\;\mathbb{S}^n$, $n\;{\geq}\;3$, stated in [J. Korean Math. Soc. 41 (2004), no. 3, p. 420].

THE MATERIALS FOR REFERENCE RESPECTING. THE MEDICINAL PLANTS GROWN IN MANCHURIA (만주약용식물에 관한 지견)

  • 임기흥
    • YAKHAK HOEJI
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    • v.2 no.1_2
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    • pp.21-27
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    • 1953
  • A new forma called " Euryale ferox salisbury f. Baichitao Rim" is written down in it. In regard to Xanthium genus, chenopoium genus, Aronitum genus, Lycoctnum genus. Atractylodes japonica, Lemnaceae, and Trapaceae. Some information has been given from taxonomical and aecological point of view, where by their peculiarity is made clear.

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An Addition of 6 Taxa of the Genus Cosmarium (Chlorophyta) in Korea (한국산 장고말속(녹조식물문) 6분류군의 추가)

  • Park, Jung-Hoon;Lee, Ok-Min
    • ALGAE
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    • v.19 no.2
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    • pp.139-144
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    • 2004
  • Six taxa of unrecorded Korean species of genus Cosmarium were collected from several freshwater sites of South Korea in 2003. They were 3 species and 3 varieties of Genus Cosmarium. Genus Cosmarium of Korea was reported to totally 273 taxa 125 species, 113 varieties and 35 forms including this study.

New Land Snails in Korea (한국산 육산 달팽이 5 신종 및 3 신아종)

  • 권오길;이준상
    • The Korean Journal of Malacology
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    • v.7 no.1
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    • pp.1-11
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    • 1991
  • Authors describe here five new species and three new subspecies of Korean Iand snail fauna. They are collected from the southern part of Korea including Ullungdo and Chejudo. The generic names of these new species and subspecies were discribed in the [ Il-lustrated Encyclopedia of fauna & flora of Korea V ol.32 Mollusca(I)]. The newly recorded species and subspecies are as follows:Genus Diplommatina Benson, 1849 Subgenus Sinica Mollendorff, 1885 Diplommatina(Sinica) paxillus changensis n. subsp. Diplommatina(Sinica) chejuensis n. sp.Genus Arinia H. & A. Adams, 1856 Arinia chejuensis n. sp.Authors describe here five new species and three new subspecies of Korean Iand snail fauna. They are collected from the southern part of Korea including Ullungdo and Chejudo. The generic names of these new species and subspecies were discribed in the [ Il-lustrated Encyclopedia of fauna & flora of Korea V ol.32 Mollusca(I)]. The newly recorded species and subspecies are as follows:Genus Diplommatina Benson, 1849 Subgenus Sinica Mollendorff, 1885 Diplommatina(Sinica) paxillus changensis n. subsp. Diplommatina(Sinica) chejuensis n. sp.Genus Cavernacmella Habe, 1942 cavernacmella coreana n. sp.Authors describe here five new species and three new subspecies of Korean Iand snail fauna. They are collected from the southern part of Korea including Ullungdo and Chejudo. The generic names of these new species and subspecies were discribed in the [ Il-lustrated Encyclopedia of fauna & flora of Korea V ol.32 Mollusca(I)]. The newly recorded species and subspecies are as follows:Genus Diplommatina Benson, 1849 Subgenus Sinica Mollendorff, 1885 Diplommatina(Sinica) paxillus changensis n. subsp. Diplommatina(Sinica) chejuensis n. sp.Genus Mirus Albers, 1850 Mirus junensis n. sp.Genus Paganizaptyx Kuroda, 1945 Paganizaptyx miyanagai ullungdoensis. subsp.Authors describe here five new species and three new subspecies of Korean Iand snail fauna. They are collected from the southern part of Korea including Ullungdo and Chejudo. The generic names of these new species and subspecies were discribed in the [ Il-lustrated Encyclopedia of fauna & flora of Korea V ol.32 Mollusca(I)]. The newly recorded species and subspecies are as follows:Genus Diplommatina Benson, 1849 Subgenus Sinica Mollendorff, 1885 Diplommatina(Sinica) paxillus changensis n. subsp. Diplommatina(Sinica) chejuensis n. sp.Genus Ratinella Shuttleworth, 1877 Retinella radiatula coreana n. subsp.Genus Sitalina Thiele, 1931 Sitalina chejuensis n. sp.

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