• 제목/요약/키워드: three species

검색결과 5,739건 처리시간 0.039초

Aquatic Beetles Fauna in Nohwa and Bogil Islands, and Copelatus parallelus (Coleoptera: Dytiscidae) and Scirtes sobrinus (Coleoptera: Scirtidae) New to South Korea

  • Jung, Sang Woo;Min, Hong Ki;Lee, Dae-Hyun
    • Animal Systematics, Evolution and Diversity
    • /
    • 제36권2호
    • /
    • pp.128-138
    • /
    • 2020
  • A faunistic list and distribution of aquatic beetles were given with two newly records, Copelatus parallelus Zimmermann, 1920 (family Dytiscidae) and Scirtes sobrinus Lewis, 1895 (family Scirtidae) from Nohwa and Bogil islands in South Korea. As a result, a total of 30 species belonging to 24 genera and eight families were recognized: 12 Dytiscidae species, eight Hydrophilidae species, three Haliplidae species, two Scirtidae species, two Gyrinidae species, one Noteridae species, one Elmidae species, and one Psephenidae species. Composition and habitus photographs of all collected aquatic beetles, habitats, and the diagnostic characters of C. parallelus and S. sobrinus are provided.

Moth Fauna of Gageodo Island in the Southwestern Sea, Korean Peninsula, including Seven Unrecorded Species (Lepidoptera)

  • Choi, Sei-Woong;Kim, Sung-Soo;An, Jeong-Seop;Kwon, Tae-Sung
    • Animal Systematics, Evolution and Diversity
    • /
    • 제31권4호
    • /
    • pp.296-303
    • /
    • 2015
  • We surveyed moths on Gageodo island in the southwestern sea of the Korean Peninsula over three years (2009, 2012, 2013) and found a total of 253 species in 18 families. Geometridae had the greatest species richness, with 63 species, followed by Noctuidae, Erebidae, Crambidae and Sphingidae. The annual changes in species richness and abundance were not different and seasonal occurrence of species showed a unimodal pattern in which the numbers of species and individuals increased from April and May, peaked in June and decreased to September and October. Seven moth species (Pyralidae: Herculia drabicilialis Yamanaka, Didia striatella (Inoue); Crambidae: Clupeosoma pryeri (Butler), Demobotys pervulgalis (Hampson), Yezobotys dissimilis (Yamanaka), Syllepte cissalis Yamanaka; Erebidae: Hypena sinuosa (Wileman)) are reported for the first time in Korea.

A report on species of phyllidiid and polycerid nudibranch including two species new to Korea

  • Jung, Daewui;Lee, Jongrak;Kim, Chang-Bae
    • Journal of Species Research
    • /
    • 제2권1호
    • /
    • pp.7-14
    • /
    • 2013
  • During a systematic study on Korean nudibranchs, two phyllidiid and two polycerid species were collected and identified with examination of their external morphological characters. As a result of the study, two phyllidiid species, Phyllidia ocellata Cuvier, 1804 and Phyllidiella pustulosa (Cuvier, 1804) were redescribed since there was no descriptions of these species with Korean specimens. And two polycerid species, Thecacera pennigera (Montagu, 1815) and Triopha catalinae (Cooper, 1863) were described as new to Korean fauna. Diagnostic characters of these species are described with illustrations in this study. DNA barcode data from three species examined were also provided for a supplement to morphological identifications.

동소적으로 서식하는 은대난초속 3종(난과)의 미세 공간 분포에 대한 참고 사항: 종의 경계 유지에 대한 암시 (Notes on fine-scale spatial distribution of three Cephalanthera species (Orchidaceae) that grow in sympatry in Korea: Implications for maintenance of species boundaries)

  • 정미윤;;정명기
    • 식물분류학회지
    • /
    • 제47권4호
    • /
    • pp.289-296
    • /
    • 2017
  • 자가화합성이고 3종의 육상 난초인 은난초, 금난초, 은대난초가 간혹 동소적 개체군들에서 동시에 개화한다. 흰꽃이 완전히 열리지 않는 은난초와 은대난초는 주로 자가수분하며, 밝은 노란색 꽃이 완전히 열리는 금난초는 꽃 내 먹이가 존재하는 듯 속이는 방법으로 곤충을 유인하면서 타가교배한다. 잡종의 형성은 강한 수분 장벽(꽃간의 구조적 격리) 때문에 종간에 거의 일어나지 않는다. 만약 이 들 3종이 종간 잡종화의 방지로 진화하였다면, 저자들은 3 종의 공간 분포 양상이 서로 공간적으로 분리(즉, '공간적 반발') 될 것으로 기대할 수 있다. 이 예측을 검증하기 위해 한국의 경상남도 연화산군립공원 내 동소적집단에서 동시개화하는 3 종류의 은대난초 종의 공간적 분포를 연구하였다. 각각 개체군에서는 개체들이 공간적으로 강하게 뭉쳐 있으나, 종 간에서는 이들이 공간적으로 서로 독립되어 있는 결과는 다른 종 들에서 보여준 기존 연구와 다르다. 저자들은 이들 은대난초속 종이 유사한 균근 형성 균류들을 공유함으로써 공간적으로 다소 무작위로 분포 해왔을 것이라는 가정을 제시한다.

Comparison of the spatial-temporal distributions of the heterotrophic dinoflagellates Gyrodinium dominans, G. jinhaense, and G. moestrupii in Korean coastal waters

  • Lee, Sung Yeon;Jeong, Hae Jin;Kang, Hee Chang;Ok, Jin Hee;You, Ji Hyun;Park, Sang Ah;Eom, Se Hee
    • ALGAE
    • /
    • 제36권1호
    • /
    • pp.37-50
    • /
    • 2021
  • Heterotrophic dinoflagellates Gyrodinium spp. are one of the major grazers of phytoplankton in many coastal waters. Gyrodinium dominans, G. jinhaense, and G. moestrupii have similar morphologies but different edible prey species. To explore the variations in the ecological niches of these three species, we investigated their spatial-temporal distributions in Korean waters. Because of the high similarity in morphology among these three Gyrodinium species, we used real-time polymerase chain reactions to quantify their abundance in water samples that were seasonally collected from 28 stations along the Korean Peninsula from April 2015 to October 2018. Cells of G. dominans were found at all sampling stations, G. jinhaense at 26 stations, and G. moestrupii at 22 stations, indicating that all three species were widely distributed in Korea. Furthermore, all three species displayed strong seasonal distributions. The largest numbers of the stations where G. dominans and G. jinhaense cells were present were found during the summer (26 and 23 stations, respectively), but that for G. moestrupii was found in the autumn (15 stations). The abundance of G. dominans was positively correlated with that of G. jinhaense, but not with that of G. moestrupii. The highest abundances of G. dominans (202.5 cells mL-1) and G. jinhaense (20.2 cells mL-1) were much greater than that of G. moestrupii (1.2 cells mL-1). The highest abundances of G. dominans and G. jinhaense were found in July, whereas that of G. moestrupii was found in March. The abundances of G. dominans and G. jinhaense, but not G. moestrupii, were positively correlated with water temperature. Therefore, the spatial-temporal distributions of G. dominans and G. jinhaense were closer than those of G. moestrupii and G. dominans or G. jinhaense. This differs from results based on the relative differences in ribosomal DNA sequences and the types of edible prey reported in the literature. Thus, the variations in spatial-temporal distributions and prey species of these three Gyrodinium species suggest that they may have different ecological niches in Korean coastal waters.

한국산 꺽지과 어류 3종의 세포유전학적 연구 (Cytogenetic Analysis of Three Centropomid Species in Korea)

  • 방인철;남윤권;노충환;박준택;한경호
    • 한국수산과학회지
    • /
    • 제34권1호
    • /
    • pp.17-20
    • /
    • 2001
  • 한국산 꺽지과 어류 3종에 대한 세포유전학적 기초 자료를 얻기 위하여 염색체 핵형, 적혈구 세포 및 핵의 크기와 DNA 함량을 조사하였다 꺽지 (Coreoperca herzi), 꺽저기 (C. kawamebari) 및 쏘가리 (Siniperca schezeri)의 핵형은 각각 2n=48 (4SM+44A, T), 2n=48 (6SM+42A, T) 2n=48 (4SM+44A, T)이었으며, 암수간 heteromorphic한 성염색체는 발견할 수 없었다. 쏘가리의 적혈구 세포 및 핵의 표면적과 체적은 다른 2종보다 작았다. DNA함량은 적혈구 세포 크기에서 같은 경향을 보여, 쏘가리가 1.47pg/cell로 꺽지 (1.83pg/cell) 및 꺽저기 (1.85pg/cell)보다 유의하게 작았다.

  • PDF

메탄올자화 효모에 관한 연구 (A Study on Methanol-Assimilating Yeast)

  • 김현희;민병례
    • 미생물학회지
    • /
    • 제18권1호
    • /
    • pp.20-28
    • /
    • 1980
  • 1. 꽃에서 분리한 200여 균주에서 30종을 동정하였으며, 그 중 메탄올을 자화할수있는 균주는 23종이었으며, 가장 생장이 좋은 3종을 선별하였다. 그 3종은 Candida incommunis, Cryptococcus aerius, Haηsenula ciferrii였다. 2. 위의 3종은 복합비타민과 yeast extract의 공급이 없이 탄소원으로 메탄올을 자화하여 중식하였으며, 메탄올을 이용하여 증식한 효모의 아미노산 조성을 검사한 결과 필수 아미노산이 모두 포함되어 있었다. 3. 총 아마노산의 함량이 Candida incommunis는 42.5%, Hansenula ciferrii는 39.9%로서 Kloeckera sp. No. 22 (Ogata 둥 1910a)의 39.9%보다 높고, Cryptococcus aeriuS는 36.5%로서 Candida utilis(Ogata 등 1970b)의 31.9%보다 높다. 4.곡류단백질에 흔히 결핍되어 있는 lysine과 threonine의 필수 아미노산이 이들 yeast에서는 소액분의 수준으로 포함되어 있다. 5. 총 질소량 Candida incommunis가 31.4%, Hansenula ciferrii가 28.8%, Cryptococcus aerius가 27.1%로 나타났다. 6. 높은 균체수율을 위한 실험결과 메탄올의 농도 1.3%, 온도 $30^{\circ}C$가 최적 생장조건으로 나타났다.

  • PDF

한국산 충생자낭균류의 미기록종에 관하여 (Notes on Three Species of the Laboulbeniales (Ascomycotina) Newly Collected from Korea)

  • 이용보;나영희
    • 한국균학회지
    • /
    • 제27권3호통권90호
    • /
    • pp.208-210
    • /
    • 1999
  • 본 연구는 우리나라에서 충생자낭균류의 자원을 발굴하고, 동정하여 새로운 생물자원을 확보하기 위하여 1996년 10월부터 1997년 9월까지 연구한 결과이다. 현재까지 우리나라의 충생자낭균류는 16속 59종이 기록되어 있으며, 본 연구를 통하여 동정된 충생자낭균류의 미기록 3종을 다음과 같이 보고하고자 한다. Laboulbenia anoplogenii Thaxter는 Stenolophys quinquepustulatus Widemann으로부터 발견되었다. 이 균체의 특징은 탁의 4번층의 세포수가 $2{\sim}3$개으로 되어 있으며, 상부를 향하여 돌출하고 있다. Laboulbenia habui Terada는 Chlaenius variicornis Bates에서 채집되었다. 이 종의 특징은 2차 부속지의 기부세포들이 교대로 2열로 배열된 짧은 원통형으로 되어있다. Laboulbenia pallida Thaxter는 Anisodactylus signatus Panzer에서 채집되었다. 이 종은 Harpalus Sp.에서 발견되어 왔지만, Anisodactylus signatus Panzer에서는 처음으로 발견되었다. 이 종의 특징은 자낭각의 정단부가 둥글며, 의부속지는 기부세포에서 가지쳐 있다. 본 연구로 우리나라의 충생자낭균류는 16속 62종이 기록된다.

  • PDF

Rapid molecular authentication of three medicinal plant species, Cynanchum wilfordii, Cynanchum auriculatum, and Polygonum multiflorum (Fallopia multiflorum), by the development of RAPD-derived SCAR markers and multiplex-PCR

  • Moon, Byeong-Cheol;Choo, Byung-Kil;Cheon, Myeong-Sook;Yoon, Tae-Sook;Ji, Yun-Ui;Kim, Bo-Bae;Lee, A-Young;Kim, Ho-Kyoung
    • Plant Biotechnology Reports
    • /
    • 제4권1호
    • /
    • pp.1-7
    • /
    • 2010
  • Definitive identification of original plant species is important for standardizing herbal medicine. The herbal medicines Cynanchi Wilfordii Radix (Baekshuoh in Korean and Beishuwu in Chinese) and Polygoni Multiflori Radix (Hashuoh in Korean and Heshuwu in Chinese) are often misidentified in the Korean herbal market due to morphological similarities and similar names. Therefore, we developed a reliable molecular marker for the identification of Cynanchi Wilfordii Radix and Polygoni Multiflori Radix. We used random amplified polymorphic DNA (RAPD) analysis of three plant species, Polygoni multiflorum, Cynanchum wilfordii, and Cynanchum auriculatum, to obtain several species-specific RAPD amplicons. From nucleotide sequences of these RAPD amplicons, we developed six sequence characterized amplification region (SCAR) markers for distinguishing Polygoni Multiflori Radix and Cynanchi Wilfordii Radix. Furthermore, we established SCAR markers for the simultaneous discrimination of the three species within a single reaction by using multiplex-PCR. These SCAR markers can be used for efficient and rapid authentication of these closely related species, and will be useful for preventing the distribution of adulterants.

Delimitation of Russula Subgenus Amoenula in Korea Using Three Molecular Markers

  • Park, Myung Soo;Fong, Jonathan J.;Lee, Hyun;Oh, Seung-Yoon;Jung, Paul Eunil;Min, Young Ju;Seok, Soon Ja;Lim, Young Woon
    • Mycobiology
    • /
    • 제41권4호
    • /
    • pp.191-201
    • /
    • 2013
  • Distinguishing individual Russula species has been difficult due to extensive phenotypic plasticity and obscure morphological and anatomical discontinuities. Due to highly similar macroscopic features, such as the presence of a red-cap, species identification within the Russula subgenus Amoenula is particularly difficult. Three species of the subgenus Amoneula have been reported in Korea. We used a combination of morphology and three molecular markers, the internal transcribed spacer (ITS), 28S nuclear ribosomal large subunit (LSU), and RNA polymerase II gene (RPB2), for identification and study of the genetic diversity of Russula subgenus Amoenula in Korea. We identified only two species in Korea (R. mariae and R. violeipes); these two species were indistinguishable according to morphology and LSU, but were found to be reciprocally monophyletic species using ITS and RPB2. The markers, ITS, LSU, and RPB2, have been tested in the past for use as DNA barcoding markers, and findings of our study suggest that ITS and RPB2 had the best performance for the Russula subgenus Amoneula.