• 제목/요약/키워드: systematics : Korea

검색결과 1,390건 처리시간 0.023초

First record of a marine microalgal species, Jaagichlorella roystonensis (Trebouxiophyceae) isolated from Jungmun Saekdal Beach, Jeju Island, Korea

  • Jo, Seung-Woo;Kang, Nam Seon;Lee, Jung A;Kim, Kyeong Mi;Jang, Hyeong Seok;Yoon, Moongeun;Hong, Ji Won;Yoon, Ho-Sung
    • 환경생물
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    • 제38권2호
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    • pp.216-221
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    • 2020
  • A eukaryotic marine microalga was isolated from Jungmun Saekdal Beach, Jeju Island, Korea and an integrated approach, including molecular phylogeny and morphology, was used to determine its taxonomical status. Molecular phylogenetic evidence inferred from the small subunit (SSU) 18S rRNA sequence and internal transcribed spacer (ITS) secondary structure analysis clearly showed that the isolate belonged to the recently described species, Jaagichlorella roystonensis. Distinctive morphological keys of the species were also observed by light microscopy and scanning/transmission electron microscopy(S/TEM). In this study, a Korean marine J. roystonensis species was described for the first time and was subsequently added to the national culture collections in Korea.

First record of a marine microalgal species, Chlorella gloriosa (Trebouxiophyceae) isolated from the Dokdo Islands, Korea

  • Kang, Nam Seon;Lee, Jung A;Jang, Hyeong Seok;Kim, Kyeong Mi;Kim, Eun Song;Yoon, Moongeun;Hong, Ji Won
    • 환경생물
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    • 제37권4호
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    • pp.526-534
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    • 2019
  • Chlorella gloriosa (Chlorellaceae, Trebouxiophyceae) was isolated from seawater off the coast of the Dokdo Islands in Korea. An axenic culture was established using the streak-plate method on f/2 agar media supplemented with antibiotics, allowing identification of the isolate by morphological, molecular, and physiological analyses. The morphological characteristics observed by light and electron microscopy revealed typical morphologies of C. gloriosa species. The molecular phylogenetic inference drawn from the small-subunit 18S rRNA sequence verified that the microalgal strain belongs to C. gloriosa. Additionally, gas chromatography-mass spectrometry analysis showed that the isolate was rich in nutritionally important omega-3 and -6 polyunsaturated fatty acids and high-performance liquid chromatography analysis revealed that the high-value antioxidants lutein and violaxanthin were biosynthesized as accessory pigments by this microalga, with arabinose, galactose, and glucose as the major monosaccharides. Therefore, in this study, a Korean marine C. gloriosa species was discovered, characterized, and described, and subsequently added to the national culture collection.

한국산 미기록 기생벌 Aleiodes thirakupti (벌목: 고치벌과)에 대한 보고 (A New Record of Parasitoid Wasp Aleiodes thirakupti (Hymenoptera: Braconidae) from South Korea)

  • 이경현;유영혁;김상진;손주형;임종옥;김효중
    • 한국응용곤충학회지
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    • 제61권2호
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    • pp.331-333
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    • 2022
  • 고치벌과의 송충살이고치벌아과에 속하는 Aleiodes thirakupti (Butcher et al., 2012)을 국내 최초로 보고한다. 본 종에 대한 진단, 분포 및 삽화를 제공한다.

한국산 미기록 기생벌 Aleiodes conina (벌목: 고치벌과)에 대한 보고 (A New Record of Parasitoid Wasp Aleiodes conina (Hymenoptera: Braconidae) from South Korea)

  • 이경현;손주형;김상진;김영모;임종옥;김효중
    • 한국응용곤충학회지
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    • 제61권3호
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    • pp.503-506
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    • 2022
  • 고치벌과의 송충살이고치벌아과에 속하는 Aleiodes conina Quicke and Butcher, 2012를 국내 최초로 보고한다. 본 종에 대한 진단, 분포 및 삽화를 제공한다.