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        검색결과 35

        1.
        2023.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study was conducted to develop a seed propagation protocol of Hemerocallis taxa native to the Korean Peninsula. In this study, the seed dormancy types were classified. The germination traits of H. thunbergii, H. dumortieri, H. hakuunensis, and H. hongdoensis were also characterized. The initial embryo to seed length ratio (E:S ratio) in seeds of the four Hemerocallis species was between 0.80 and 0.90 at harvest, however, the E:S ratio did not increase until just before germination. Thus, seeds of the four Hemerocallis species had no morphological dormancy (MD), and at least 84% of seeds of all tested species germinated at 25/15℃ under light within 30 days. The lower the incubation temperature, the lower the germination rate of seeds of the four Hemerocallis species. However, the temperature range for germination was expanded due to old stratification. Gibberellin treatment increased the germination rate or germination speed at a relatively low temperature of 15/6℃. However, this treatment did not improve the germination rate as much as the temperature at 25/15℃. Under 15/5℃ of incubation, cold stratification increased the final germination percentage and rate/speed and expanded the temperature range for germination from high to low (25/15℃ → 15/6℃). This indicates that the seeds have a conditional dormancy (CD) that germinates in a narrow temperature range. In conclusions, the four Hemerocallis seeds exhibited nondeep physiological dormancy.
        4,300원
        2.
        2023.10 구독 인증기관·개인회원 무료
        꼬마짤름나방아과는 날개편길이 5.5-12mm로 태극나방과 중에서는 크기가 작은 나방에 속한다. 본 아과는 주로 온대구를 포함하여 구북구에 분포한다. 기주식물은 곰팡이, 지의류 등으로 일부 알려져 있으며 이들의 생활 사 등은 잘 알려져 있지 않다. 또한, 본 아과의 상위분류군은 밤나방상과로 나비목 중 가장 큰 분류군이다. 각 분류군의 형질을 기준으로 상위분류체계에 많은 변동사항이 있었다. 본 상과에 속한 여러 아과 중 일부 족 수준으 로 강등되어 본 아과에 포함되는 등 분류학적 위치에 많은 혼란이 있었다. 따라서, 본 연구에서 꼬마짤름나방아과 및 근연분류군의 계통분류학적 연구를 통해 검토하고자 한다.
        3.
        2023.10 구독 인증기관·개인회원 무료
        The subfamilies Hypenodinae and Boletobiinae has various size with wingspan 5.5-28mm, belonging to the family Erebidae. They are mainly distributed the Palaearctic region, including temperate zone. Host plants of them are known as fungi and lichen etc. Some larvae live with lichen on their bodies. The subfamily belongs to subfamily is the Noctuoidea, containing more than 42,500 species. Accordingly, a unified high-level classification system could not be established due to the different opinions among the researchers and perspectives on the characteristics of each taxon. Recently, Zahiri et al. (2011, 2012) established the taxonomy of the family Erebidae, based on the molecular phylogenetic study. As we know, there has been a lot of confusion regarding the taxonomic positions of subfamily with allied taxa according to the complicated upper taxonomic system. Thus, this study is aimed to review and discuss the taxonomic history of the groups in this study.
        4.
        2023.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Freshwater and brackish blue-green algae were collected at 43 freshwater and brackish sites (including lakes, ponds, swamps, streams, and rivers and estuaries) throughout South Korea from March 2017 to October 2018, and were identified using light microscopy. A total 223 taxa in freshwater and 230 taxa in brackish waters in 2017 and 274 taxa in fresh and brackish waters in 2018 were identified and among them, 20 taxa were unreported taxa of blue-green algae in Korea; The new recorded taxa were Aphanocapsa marina, Calothrix fusca f. durabilis, Calothrix littoralis, Calothrix parva, Chamaesiphon minimus, Chroococcidiopsis cubana, Chroococcidiopsis fissurarum, Coelosphaerium aerugineum, Dolichospermum mendotae, Eucapsis alpine, Gomphosphaeria cordiformis, Gomphosphaeria natans, Merismopedia danubiana, Lynbya aestuarii var. gaditana, Tolypothrix tenuis, Pseudocapsa maritima, Pseudocapsa sphaerica, Pseudophormidium tenue, Trichodesmus sp. and Woronichinia elorantae.
        5,800원
        6.
        2022.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Veronica L., the largest genus in the family Plantaginaceae, is widespread in various habitats. Due to their long-blooming flowers, Veronica species have high horticultural value as indoor potted, garden, and landscape plants. Furthermore, Veronica plants are extremely important owing to their notable diversity in habitat usage, ploidy level, and evolution. Several native taxa, which are of key interest in breeding programs and phylogenetic studies, have been identified in Korea. The genome sizes and chromosomal characteristics are basic cytogenetic features of all taxa, and their knowledge is a prerequisite when commencing genome sequencing projects. It can provide essential information for cytogenetic, taxonomic, phylogenetic, and evolutionary studies. Thus, cytogenetic analysis and genome size estimation of seven Veronica taxa native to Korea were conducted in this study. Fluorescence in situ hybridization (FISH) karyotype analysis and chromosome counting was conducted using metaphase chromosomes probed with 5S and 45S rDNA. Nuclear DNA content and genome size were determined using flow cytometry. FISH karyotype analysis revealed a common number of 5S loci and varying 45S signals that create distinctive rDNA distribution patterns in each taxon. The results indicated that the seven investigated Veronica taxa have calculated genome sizes (1C values) ranging from 517.1 to 862.0 Mbp. This study is the first to report the chromosome number and karyomorphology of seven Veronica taxa native to Korea, as well as the use of rDNA markers for identifying individual chromosomes. These findings contribute to the crucial understanding the genomic characteristics of species within the genus Veronica, serve as a basis for studying Veronica phylogeny and evolution, and provide valuable information for future breeding programs.
        4,300원
        7.
        2021.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Unarmored and thin-walled dinoflagellates were collected from brackish and coastal waters of Korea from August 2019 to August 2021. A total of 10 species belonging to orders Sussiales and Gymnodiniales were isolated and established as clonal cultures. Of them, five species (Biecheleria brevisulcata, Lepidodinium chlorophorum, Karlodinium decipiens, Kirithra asteri, and Wangodinium sinense) are newly recorded in Korea and examined using a light microscope (LM) and a scanning electron microscope (SEM). Their molecular phylogeny was inferred from LSU rDNA sequences. Here, we present taxonomic information, morphological features, and molecular phylogenetic positions of these unrecorded dinoflagellate species.
        4,000원
        10.
        2020.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 실험은 광 환경이 자생 Veronica속 4종 구와꼬리풀, 봉래꼬리풀, 부산꼬리풀, 큰구와꼬리풀의 생장 및 개화에 미치는 영향을 구명하기 위해 실시하였다. 이중 봉래꼬리풀은 희귀 및 특산식물로 지정되어 있는 우리나라의 자생식물이며 부산꼬리풀은 우리나라에서도 부산지역에서만 자생하는 특산식물이자 자료부족종으로 분류된다. 실험은 2018년 3월 30일부 터 2018년 8월 17일까지 수행되었으며 Veronica속 4종을 0, 40, 60, 90% 차광환경에서 재배하였다. 구와꼬리풀을 0~60% 차광환경에서 재배시 90% 차광환경에서 재배한 개체보다 지상부의 생체중이 무겁고 엽수 및 가지수가 많아 생장이 유의하게 좋았다. 큰구와꼬리풀의 줄기 두께는 90% 차광환경에서 재배시 유의하게 얇아져 생장이 불량하였다. 구와꼬리풀과 큰구와꼬리풀은 0~60% 환경에서 재배시 모든 개체가 개화하였으며 90% 차광환경에서 재배한 개체보다 개화소요일수가 짧 아졌다. 봉래꼬리풀은 0~40% 차광환경에서 재배시 60~90% 차광환경에서 재배한 개체보다 지상부 및 건물증이 유의하게 증가하여 생육이 좋았으며, 관상가치 측면에서 가장 높은 점수를 받았다. 부산꼬리풀의 관상가치는 0, 40, 60, 90% 차광환경에서 재배시 각각 4.0, 3.0, 2.2, 1.0점으로 조사되어 동일한 Veronica속이라도 종에 따라서 광 민감도가 다양한 것을 확인하였다.
        4,000원
        11.
        2019.04 구독 인증기관·개인회원 무료
        주머니나방과(Psychidae)는 곡식좀나방상과 (Tineoidea)에 속하며 전 세계적으로 241속 1,350종이 분포하는 것으로 보고되어 있다. 이들은 유충시기에 주머니를 만들고 그 속에서 사는 독특한 생활방식과 단순한 암컷의 외부형태 특징 등으로 인해 생태 및 계통학적 연구가 다양하게 시도되고 있다. 본 연구에서는 현재까지 수행된 한국산 주머니나방 과의 분류학적 연구결과를 소개하고 근연분류군에 대해 고찰하고자 한다.
        12.
        2019.04 구독 인증기관·개인회원 무료
        Host relationships between insects and plants are one of the major factor driving evolutionary diversification within terrestrial ecosystems. Beetles (Coleoptera) are the most diverse and species-rich group of insects, and a robust, time-calibrated phylogeny is fundamental to understanding macroevolutionary processes that underlie their diversity. Recently, many studies have been carried out about the relationships among those taxa according to the attention on co-evolution of phytophagous insects and their hosts, however, most of them focused on special taxa (family or genus level) of insects. In this presentation, we especially reviewed current trends of studies on interactions between coleopteran insects and host plant in the world and Korea for proposals of future studies.
        13.
        2018.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Six taxa of unrecorded Korean species of charophytes are described. Freshwater and aerial charophytes were collected from the bark of trees, reservoirs, small ponds and swamps from April 2017 to September 2017. The newly recorded species of Korea were Cosmarium quadrifarium f. octastichum, Euastrum turneri, Spondylosium nitens var. triangulare, Staurastrum kouwetsii, Staurodesmus dickiei var. latus, and Klebsormidium subtile. K. subtile was transferred from Stichococcus subtilis.
        4,000원
        14.
        2018.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In 2017, the freshwater algae were collected from reservoirs, small ponds, soil, and rocks in Korea. Eight taxa of Chlorophyta (Chlorophyceae and Trebouxiophyceae) have been newly reported in Korea. The unrecorded indigenous species were Chlorolobion braunii, Coelastrum pseudomicroporum, Coelastrum reticulatum var. cubanum, Monoraphidium nanum, Tetrachlorella incerta, Ecdysichlamys obliqua, Gloeotila scopulina, and Stichococcus jenerensis.
        4,000원
        15.
        2018.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Phytoplanktons were collected from various environments including small marshes, small ponds, reservoirs and brackish water from March 2017 to November 2017. In this study, five species of family Scenedesmaceae were newly recorded in Korea. The genus Desmodesmus was newly reported in Korea. The newly recorded species are Scenedesmus nanus, S. praetervisus, Desmodesmus costato-granulatus, D. lunatus and D. spinulatus. S. nanus and S. praetervisus are known to occur in freshwater, but they were found in the brackish water in this study.
        4,000원
        16.
        2017.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Freshwater algae (green algae, blue-green algae and flagellated algae) were collected at 103 freshwater sites (including lakes, ponds, swamps, streams, and rivers) throughout South Korea March 2015-October 2016, and were identified using light microscopy. A total of 345 taxa in 2015 and 329 taxa in 2016 were identified and among them, 6 taxa in 2015 and 8 taxa in 2016 were new recorded species in Korea; The new recorded species were Characiopsis malleolus in Xanthophyceae, Phacus mammillatus in Euglenophyceae, Epipyxis utriculus and Lagynion ampullaceum in Chrysophyceae, Bicosoeca planctonica in Bicosoecophyceae and Salpingoeca frequentissima in Choanoflagellatea in 2015, and were Ankistrodesmus bernardii and Quadrigula korsikovii in Chlorophyceae, Didymocystis planctonica in Treubouxiophyceae, Spirulina nodosa, Raphidiopsis curvata and Geitlerinema claricentrosum in Cyanophyceae and Lagynion macrotrachelum in Chrysophyceae, Bicosoeca oculata in Bicosoecophyceae and Salpingeoca rosetta in Choanoflagellatea in 2016.
        4,600원
        17.
        2017.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The freshwater algae were collected at reservoirs and small ponds in Gyeonggi-do and Jeju-do on June 2016. Four species of Korean previously unrecorded algae were collected in domestic fresh waters: Coelastrum rugosum, Cosmarium baccatum, Cosmarium norimbergense and Staurastrum connatum var. pseudoamericanum. The morphological characteristics of the four taxa identified in this study were showed mostly similar to the characteristics of the previously reported characteristics. However, Cosmarium baccatum was larger than the previously recorded species and Staurastrum connatum var. pseudoamericanum was wider than the previously recorded species.
        4,000원
        18.
        2016.10 구독 인증기관·개인회원 무료
        For building up the Tephritid Tree of Life, we have so far accumulated fresh samples of 570 species of 220 tephritid genera, covering 11% and 44% of World species and genera, respectively. Based on the molecular systematics approach, the followings are examples of our findings: (1) two monophyletic groups within the superfamily Tephritoidea were clearly recognized (compatible with Willi Hennig’s Pallopteroidea and Otitoidea that are not currently used); (2) expanded concept of the family Tephritidae including parasitic taxa (Tachiniscinae, Ctenostylidae and Pyrgotidae); (3) reconfirmation of monophyletic Trypetini, Carpomyini, Tephritinae, and Dacinae; and (4) the first Tephritoidea might have evolved around the middle of Paleocene Epoch (~59 mya) and the family Tephritidae around the late Eocene (~36 mya).
        19.
        2011.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        제주도 숨은물벵뒤 습지에서 Betaproteobacteria의 종다양성을 조사하였고, 신분류군 후보 22균주를 확보하였다. 분리주의 16S rRNA 유전자 염기서열을 분석한 결과Burkholderiaceae (3균주), Comamonadaceae (8균주), Oxalobacteraceae (5균주) 및 Neisseriaceae (5균주) 등 4개 과에 속한 15속, 그리고 소속 미상의 Burkholderiales 소속1속(1균주)으로 동정되었다. Chr
        4,000원
        20.
        2011.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        제주도 한라산에 위치한 국내 최대규모의 고산습지인 숨은물벵뒤 습지의 Alphaproteobacteria와 Gammaproteobacteria강에 속하는 세균 종의 다양성을 조사하였고, 신분류군 후보 균주 19종을 확보하였다. 신종후보 균주의 16S rRNA 유전자 염기서열을 분석하였을 때 표준균주와 98.7% 미만의 유사도를 보이는 균주들을 신종후보균주로 간주하였다. 총 19종의 세균이 Alphaproteobacteria와 Gammaproteobacte
        4,000원
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