• Title/Summary/Keyword: Rhodophyta

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Some Members of Rhodochorton (Rhodophyta) in Korea (홍조 Rhodochorton 속의 분류학적 연구)

  • 이인규
    • Journal of Plant Biology
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    • v.17 no.1
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    • pp.36-52
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    • 1974
  • Nine members of Rhodochorton appearing in coastal waters of Korea were investigated diagnostically. Among them, Rh. densum, Rh. magnificum, Rh. robustum and Rh. codicola were identified previously, while Rh. terminale, Rh. sancti-thomae, Rh. daviesii, Rh. hyalosiphoniae, and Rh. rhizoideum were identified and described for the first time in this country.

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Two Korean Species of Centroceras Kutzing (Ceramiaceae, Rhodophyta) (한국산 홍조 Centroceras속 이종)

  • 부성민
    • Journal of Plant Biology
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    • v.28 no.4
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    • pp.297-304
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    • 1985
  • Two Korean species of Centroceras K tzing, Ceramiaceae was investigated taxonomically. C. clavulatum (Ag.) Montagne collected at several sited along the coast of Korea was characterized by regular dischotomous branches with whorl spines at every node, whereas, C. distichum Okamura collected at Soando in the southern coast was by alternate branches with gland cells around nodes. Biogeographic data show that Korea is almost northern limit in distribution of the former species.

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A new Korean red algal species, Haraldiophyllum udoensis sp. nov. (Delesseriaceae, Rhodophyta)

  • Kim, Myung-Sook;Kang, Jeong-Chan
    • ALGAE
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    • v.26 no.3
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    • pp.211-219
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    • 2011
  • The genus Haraldiophyllum comprises seven species worldwide. Six of these are endemics with limited distributions, whereas the type species H. bonnemaisonii has been reported from the Atlantic Ocean. In Korea, H. bonnemaisonii has been previously recorded from the southern coast. During a red algal collection at Udo, Jeju Island, Korea, we found a potentially undescribed Haraldiophyllum species and analyzed its morphology and rbcL sequences. Herein we describe a new species, H. udoensis sp. nov., and compare our Udo specimen to similar congeners. This new species is characterized by one or several elliptical blades on a short cylindrical stipe with fibrous roots, blades that are monostromatic except at the base and on reproductive structures, a lack of network and microscopic veins, entire margins, lack of proliferations, growth through many marginal initials, and two distinct tetrasporangia layers. A phylogenetic rbcL sequence analysis demonstrated H. udoensis was distinct from the United Kingdom's H. bonnemaisonii, as well as from other species. Morphological and sequence data indicated a previous misidentification of H. udoensis as the type species H. bonnemaisonii. Based on maximum likelihood analysis, Myriogramme formed a sister clade with H. udoensis, with relatively low bootstrap support.

Gall structure and specificity in Bostrychia culture isolates (Rhodomelaceae, Rhodophyta)

  • West, John A.;Pueschel, Curt M.;Klochkova, Tatyana A.;Kim, Gwang Hoon;De Goer, Susan;Zuccarello, Giuseppe C.
    • ALGAE
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    • v.28 no.1
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    • pp.83-92
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    • 2013
  • The descriptions of galls, or tumors, in red algae have been sparse. K$\ddot{u}$tzing (1865) observed possible galls of Bostrychia but only presented a drawing. Intensive culture observations of hundreds of specimens of the genus Bostrychia over many years have revealed that galls appeared in only a small subset of our unialgal cultures of B. kelanensis, Bostrychia moritziana/radicans, B. radicosa, B. simpliciuscula, and B. tenella and continued to be produced intermittently or continuously over many years in some cultures but were never seen in field specimens. Galls appeared as unorganized tissue found primarily on males and bisexuals, but occasionally on females and tetrasporophytes. The gall cells usually were less pigmented than neighboring tissue, but contained cells with fluorescent plastids and nuclei. The galls were not transferable to other potential hosts. Galls could be produced from gall-free tissue of cultures that originally had galls even after transfer to new culture dishes. Electon microscopy of galls on one isolate (3895) showed that virus-like particles are observed in some gall cells. It is possible that a virus is the causative agent of these galls.