• 제목/요약/키워드: first occurrence

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A New Record of Invasive Alien Colonial Tunicate Clavelina lepadiformis (Ascidiacea: Aplousobranchia: Clavelinidae) in Korea

  • Pyo, Joo-Yeon;Shin, Sook
    • Animal Systematics, Evolution and Diversity
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    • 제27권2호
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    • pp.197-200
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    • 2011
  • Tunicates were collected from three harbors (Gampo, Bangeojin, Daebyeon) in Gyeongsangnam-do and one harbor (Seogwipo) in Jejudo Island during the period from August 2008 to January 2011 and were identified on the basis of their morphological characteristics. Among them, colonial tunicate Clavelina lepadiformis (Muller, 1776) belonging to the family Clavelinidae was found to be an invasive alien species introduced from the North Atlantic, and this is the first record of its occurrence in Korea.

New occurrence of Cupressinocladus sp. from the Lower Cretaceous Jinju Formation, Shindong Group, Korea

  • Kim, Jong-Heon
    • 한국지구과학회지
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    • 제30권5호
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    • pp.605-610
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    • 2009
  • Cupressinocladus sp. found from the upper part of the Jinju Formation of the Shindong Group, Korea is described here based on the newly found leafy shoots. This species is characterized by the branched leafy shoot with decussate scale leaves. The presence of Cupressinocladus in the Jinju Formation indicates that the Early Cretaceous flora-sites in Eastern Eurasia are in a close association with territories of the mixed-type floras. The finding of this species records the first report for the Nakdong flora.

파이토플라스마에 의한 감자빗자루병 발생 (Occurrence of Potato Witches' Broom Caused by a Phytoplasma in Korea)

  • 함영일;류경열;조일찬
    • 식물병연구
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    • 제7권2호
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    • pp.116-119
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    • 2001
  • Witches' broom symptoms were firstly found on tubers of Solanum tuberosum cv, Deijima, showing dense growth of spindly sprouts in Cheju province, Korea. Plantlets from the diseased plants also produced the typical witches' broom symptoms, having densely-growing small leaves when they became adult plants. At the later stages the diseased leaves were blightened. Presence of phytoplasma in plant tissues was confirmed by DAPI-staining fluorescence microscopy and electron microscopy, exhibiting its localization in sieve tubes of stem, petiole, and midrib. This is the first report of potato witches' broom in Korea.

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Occurrence of Dumontinia tuberosa in Korea

  • Kim, Wan-Gyu;Seok, Soon-Ja;Lee, Min-Woo;Hong, Sung-Kee
    • Mycobiology
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    • 제37권2호
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    • pp.155-157
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    • 2009
  • Thirty-seven single spore isolates were obtained from specimens of ascomycetous fruiting bodies collected from Mt. Suri, Anyang in Korea. The fungal specimens and isolates were identified as Dumontinia tuberosa based on their morphological and cultural characteristics. This is the first record of this fungus occurring in Korea.

Weltrichia sp. from the Late Triassic Amisan Formation of Nampo Group, Korea

  • Kim, Jong-Heon
    • 한국지구과학회지
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    • 제34권5호
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    • pp.402-406
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    • 2013
  • Since 1984, the author has been studying the Daedong flora and has collected a large number of fossil plants from the Amisan Formation of Nampo Group distributed in Chungnam Coal-Field. One of the fossil plants was bennettitalean male flower, which was collected in 1986. The author described it as Weltrichia sp. The occurrence of Weltrichia sp. is the first record in the Early Mesozoic Daedong flora of Korea.

Occurrence of German Iris Leaf Spot Caused by Cladosporium Iridis in Korea

  • Shin, Hyeon-Dong;Lee, Hyun-Tae;Im, Dae-Joon
    • The Plant Pathology Journal
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    • 제15권2호
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    • pp.124-126
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    • 1999
  • A fungus associated with the leaf spot of German iris (Iris germanica) was identified as Cladosporium iridis based on the morphological characteristics of the condiophores and conidia. A conidial suspension of the fungus was artificially inoculated onto a healthy unwounded plant, proving its pathogenicity. This is the first record of this disease from Korea.

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Alkaloids from Amaryllidaceae III -Alkaloids from the Bulbs of Pancratium maritimum-

  • Sener, Bilge;Konukol, Sakine;Kruk, Cornelis;Pandit, Upendra K.
    • Natural Product Sciences
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    • 제4권3호
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    • pp.148-152
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    • 1998
  • The extract from the bulbs of Pancratium maritimum L. afforded 12 alkaloids belonging to the skeletally six different groups of the Amaryllidaceae alkaloids. In this paper, the isolation and identification of (-)-N-demethyl-galanthamine (1), (+)-tazettine (2) and (-)-2-O-demethylmontanine (3) are described. Their structures have been determined by using extensive spectroscopic techniques. This is the first report describing the occurrence of 1 and 3 in this plant.

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Occurrence in Korea of Rust Disease on Tilia mandshurica Caused by Pucciniastrum tiliae

  • Jae Sung Lee;Ji Hyun Park;Young Joon Choi;Hyeon Dong Shin
    • 한국균학회지
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    • 제51권1호
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    • pp.1-6
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    • 2023
  • Tilia mandshurica trees with rust symptoms have consistently been noticed during disease surveys in Korea since 2006. Based on the morphological examination and molecular sequence analysis of the internal transcribed spacer and large subunit of ribosomal DNA, Pucciniastrum tiliae was identified as the causal fungus of rust disease. This is the first report of P. tiliae infection on T. mandshurica in Korea.

Granulosa Cell Tumor of Scrotal Tunics: A Case Report

  • Eun-Kyung Ji;Kyoung-Sik Cho
    • Korean Journal of Radiology
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    • 제2권2호
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    • pp.117-120
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    • 2001
  • We report a case of adult granulosa cell tumor arising in the scrotal tunics. The patient was a 34-year-old man who presented with right scrotal swelling, first noticed four months previously. Under the initial clinical impression of epididymo-orchitis, antibiotic treatment was instituted but there was no response. The paratesticular nodules revealed by ultrasound and magnetic resonance imaging mimicked intratesticular lesion, and radical orchiectomy was performed. Although several cases of adult testicular granulosa cell tumor, have been reported, the occurrence of this entity in the paratesticular area has not, as far as we are aware, been previously described.

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사계성 딸기의 고랭지 재배시 관부 및 화방 갯수 조절에 따른 엽병터짐과 수량의 변화 (Petiole Burst Occurrence and Yield by Controlled Number of Crowns and Flower Clusters of Ever-bearing Strawberry in Highlands)

  • 이종남;임주성;류승열;이응호;남춘우;용영록
    • 원예과학기술지
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    • 제29권4호
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    • pp.288-292
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    • 2011
  • 본 실험은 고랭지에서 여름용 수출딸기 '플라멩고'의 고설재배시 지상부 조절에 따른 엽병터짐 발생과 수량 반응을 비교하고자 실시하였다. 실험구 배치는 주구를 크라운수, 세구를 첫화방 제거 유무로 하여 분할구배치 3반복으로 4월 20일 정식하였다. 흡수한 무기성분 함량은 엽병터진주가 정상주에 비해 많았다. 엽병터짐 발생율은 크라운수 1개가 62-65%로 크라운수 3개의 57-58% 보다 4-8% 높게 발생하였다. 크라운수가 적고, 첫화방을 제거하면 2화방 출뢰일이 늦어졌다. 크라운수가 1개일 때 화방수는 5.6개로 크라운수 3개의 9.2개보다 3.6개 더 적었다. 첫 화방을 제거하면 첫 수확기가 42-44일 정도 늦어졌다. 결과적으로 상품 수량은 크라운수 2-3개와 첫화방을 제거하지 않았을 때 11,183-11,733$kg{\cdot}ha^{-1}$으로 크라운수 1개와 첫화방 제거보다 65-74% 증수되었다.