• Title/Summary/Keyword: Marine Microorganism

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Optimization of Conditions for the Production of Alginate-degrading Crude Enzyme from Vibrio crassostreae PKA 1002 (Vibrio crassostreae PKA 1002의 알긴산 분해 조효소 생산 최적 조건과 조효소의 특성)

  • SunWoo, Chan;Kim, Koth-Bong-Woo-Ri;Kim, Dong-Hyun;Jung, Seul-A;Kim, Hyun-Jee;Jeong, Da-Hyun;Jung, Hee-Ye;Lim, Sung-Mee;Hong, Yong-Ki;Ahn, Dong-Hyun
    • Microbiology and Biotechnology Letters
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    • v.40 no.3
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    • pp.243-249
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    • 2012
  • This study was conducted to screen an alginate-degrading microorganism and to investigate the characteristics of the alginate-degrading activity of its crude enzyme. A marine bacterium which produces extracellular alginate-degrading enzymes was isolated from the brown alga Sargassum thunbergii. 16S rRNA sequence analysis and physiological profiling resulted in the bacterium's identification as a Vibrio crassostreae strain, named Vibrio crassostreae PKA 1002. Its optimal culture conditions for growth were pH 9, 2% NaCl, $30^{\circ}C$ and a 24 hr incubation time. The optimal conditions for the alginate degrading ability of the crude enzyme produced by V. crassostreae PKA 1002 were pH 9, $30^{\circ}C$, a 48 hr incubation time and 8% alginic acid. The alginate degrading crude enzyme produced 3.035 g of reducing sugar per liter in 4% (w/v) alginate over 1 hr.

One Hundred Representative Fungi in Korea and Their Korean Names (한국의 대표 곰팡이 100종과 한국명)

  • Choi, Hyo-Won;Lim, Young Woon;Kim, Myoung-Dong;Kim, Jayoung;KIM, Changmu;Kim, Chang Sun;Do, Yun-Su;Back, Chang-Gi;Sang, Hyunkyu;Shin, Woo Chang;Lee, Seung-Yeol;Chung, Dawoon;Jung, Hee-Young;Choi, Young-Joon;Choi, In-Young;Han, Jae-Gu;Hong, Seung-Beom
    • The Korean Journal of Mycology
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    • v.48 no.3
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    • pp.355-367
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    • 2020
  • One hundred representative species of fungi in Korea were selected and their Korean names were proposed to increase interest in fungi among Korean people. This task was performed under the supervision of the Committee of Mycological Terms, under the Korean Society of Mycology. First, the committee established the criteria for selecting 100 representative species of fungi in Korea and then selected the candidate fungal species accordingly. To ensure the uniformity and stability of Korean fungal names, the principle of naming fungi in Korean was established, and the candidate Korean fungal names were presented accordingly. Finally, the candidate Korean fungal names were posted online to collect opinions of the members of the Korean Society of Mycology. The candidate Korean names of the plant pathogenic fungi and mushrooms were reviewed by the Korean Society of Plant Pathology and the Korean Society of Mushroom Science, respectively. After their opinions were considered, the Korean names for 100 representative fungi in Korea were finally determined. The 100 fungi comprised 41 common molds and yeasts, 28 plant pathogenic fungi, and 31 mushrooms.