• 식물분류학회지
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• 제48권4호
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• pp.331-356
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• 2018

전라남도 순천시에 위치한 조계산의 관속식물상을 조사하고 분포가 확인된 주요식물에 대해 논의하였다. 2013년 4월부터 2017년 8월까지 총 16회(20일)에 걸친 현지조사에서 확보된 표본과 전남대 생물학과 표본실(CNU)의 수장표본에 근거하여 관속식물목록을 작성하였다. 조계산에서 115과 334속 521종 8아종 45변종 4품종 총 578분류군을 확인하였다. 한국특산식물로는 지리대사초, 매미꽃, 노각나무 등 18분류군으로 조사되었고 환경부지정식물구계학적 특정식물종으로는 진퍼리잔대를 비롯한 V등급종 2분류군, 제주지네고사리, 털조장나무, 천마, 히어리 등 IV등급종 6분류군, III등급종인 약난초 등 16분류군, II등급종으로 금붓꽃 등 25분류군, I등급종으로 사다리고사리 등 30분류군이 확인되었다.

• 농업과학연구
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• 제45권4호
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• pp.583-590
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• 2018

Genus Typha L. (Typhaceae; Cattail in common) is one of the hydrophytic plants found in semi-aquatic regions. About nine to 18 species of the genus exist all over the world. In Korea, the most commonly found cattail species are T. laxmanni and T. angustifolia. The aim of this study was to prepare a cDNA library and sequences and analyze expressed sequence tags (ESTs) from these species, T. laxmanni and T. angustifolia. In the case of T. laxmanni, we observed that 715 out of 742 ESTs had high quality sequences, whereas the remaining 27 ESTs were low quality sequences. In this study, we identified 77 contigs, 393 unassembled clones and 65.7% singletons. Furthermore, in the case of T. angustifolia, we recorded 992 high quality EST sequences, and by excluding 28 low quality sequences from among them, we retrieved 120 contigs, 348 unassembled clones and 48.9% singletons. The basic local alignment search tool (BLAST) and Kyoto encyclopedia of genes and genomes (KEGG) database results enabled us to identify the functional categories, i.e., molecular function (16.5%), biological process (22.2%) and cellular components (61.3%). In addition, between these two species, the no hits and anonymous genes were 4.2% and 11.7% and 6.2% and 11.2% in T. laxmanni and T. angustifolia, respectively, based on the BLAST results. The study concluded that they have certain species-specific genes. Hence, the results of this study on these two species could be a valuable resource for further studies.

• Journal of Species Research
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• 제8권1호
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• pp.136-159
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• 2019

This study was carried out to investigate the flora of six islands belonging to the Gogunsan Archipelago (i.e., Sinsi-do, Seonyu-do, Munyeo-do, Yami-do, Bian-do, and Duri-do) in the Korean Peninsula. As results of five field surveys from March to October of 2016, we have identified 575 total taxa, representing 527 species, five subspecies, 42 varieties, and one hybrid, placed in 358 genera and 118 families. Of these 575 taxa, four are endemic to Korea, six taxa are listed on the Korean Red List of threatened species, 67 are floristic regional indicator plants, and 74 are invasive alien species. In this study, we compared species richness among the islands, and find that the larger the islands, the higher the species richness. In the case of habitat affinity types, forest species were most common, followed by farmland, seacoast, bare ground and wetland species. From similarity analyses based on the composition of vascular plants, each island did not exhibit either local specificity or unique diversity. On the contrary, the proportion of invasive alien and ruderal species may increase by human activities. Investigations and analyses of island flora such as this are important to assess the current status of the flora, predict future vegetation patterns and the spread of the alien species, and establish managment plans of plant diversity.

• Journal of Plant Biotechnology
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• 제40권1호
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• pp.43-48
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• 2013

Oreorchis coreana Finet is threatened globally by over-collection from its natural habitats for horticultural purposes. Its rarity in nature makes this plant one of the most endangered species in Korea. In this study, we investigated the effects of sodium hypochlorite (NaOCl) on orchid seed viability and seed germination. An in vitro bioassay swelling test using immature seeds was compared with a standard chemical procedure using triphenyl tetrazolium chloride (TTC) to test seed viability. In general, the bioassay was more appropriate for estimating embryo viability after a prolonged pre-treatment (more than 1 h) in 1% NaOCl, a surface sterilant often used to enhance germination of seeds of terrestrial plants. Therefore, an efficient method for investigating in vitro swelling of immature seeds is urgently needed. We established a method for determining the viability and swelling of O. coreana seeds via in vitro examination of immature seeds. Treatment of immature seeds with 1% NaOCl for 10 min greatly enhanced the extent of swelling of immature zygote embryos when compared to untreated seeds. These data obtained here appear to be comparable to viability and swelling that occurs in O. coreana seeds via asymbiotic germination.

• 식물분류학회지
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• 제32권3호
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• pp.293-299
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• 2002

새로이 명명된 완도호랑가시나무(Ilex $\times$ wandoensis C. F. Miller & M. Kim hybrid nov.)는 전남 완도군 완도에서 채집하였다. 완도호랑가시나무는 호랑가시나무(I. cornuta Thunb.)와 감탕나무(I. integra Thunb.)의 자연교잡을 통해 형성된 분류군이다. 따라서 가시형 엽연과 평평한 표면을 가진 신분류군은 사각형으로 뒤틀린 엽연에 강한 가시형 거치와 볼록한 표면을 가진 호랑가시나무와 전연이며 평평한 표면을 가진 감탕나무의 중간형질을 가지고 있다. 또한 완도호랑가시나무는 소교목이고 1.0-1.4cm의 엽병을 가진 점에서 관목이고 0.4-0.6cm의 엽병을 가진 호랑가시나무와 키가 큰 교목이고 1.5-2.0cm의 엽병을 가진 감탕나무와 뚜렷이 구별이 된다.

• Natural Product Sciences
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• 제29권1호
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• pp.1-9
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• 2023

This study assessed in vitro antioxidant activity (ABTS⁺ and DPPH) of Vitex rotundifolia seeds collected from two different regions in Korea (Jungjang City and Sindu City). Three extraction methods using ethanol, methanol, and water were prepared separately and subjected to quantification by reverse-phase high-performance liquid chromatography-photodiode array (HPLC-PDA) analysis as well as antioxidant testing. Among them, the water-based extract exhibited superior activity in the ABTS⁺ compared with the ethanol- and methanol-based extracts, while the DPPH assay analysis, revealed that the methanol-based extract had very low antioxidant activity. The concentrations of vanillic acid (1), luteolin (2), vitexicarpin (3), and artemetin (4) were quantified using HPLC-PDA analysis. Vanillic acid (1) was identified as the main antioxidant in V. rotundifolia seeds. Combining the antioxidant activity and quantitative analysis results, the water-based extract was considered to have the highest antioxidant activity. Furthermore, vanillic acid (1) was detected in the leaves and stems of V. rotundifolia plants from different regions, indicating that this species has the potential for use in future antioxidant-applications.

• Journal of Forest and Environmental Science
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• 제24권2호
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• pp.111-118
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• 2008

산림 훼손지 비탈면 녹화에 주로 사용되는 관목류 7종에 대한 인발저항실험을 실시하였다. 조사수종의 평균인발력은 두릅나무 37.26 kgf, 버드나무 34.56 kgf, 국수나무 26.00kgf의 순으로 측정되었으며, 뿌리의 근원경 및 뿌리체적이 크면 클수록 인발력은 높게 산출되었다. 뿌리 근원경과 뿌리 체적에 대한 인발력은 산딸기나무가 가장 상관관계가 높았으며, 산초나무가 가장 낮았다. 그리고 뿌리의 근원경에 따른 인발력은 대부분 유의적인 차이가 있는 것으로 나타났으며, 뿌리체적에 따른 인발력은 뿌리체적이 20 ml미만에서만 수종간의 인발력 차이가 있는 것으로 나타났다.

• 한국응용곤충학회지
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• 제55권3호
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• pp.285-291
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• 2016

Spathius exarator의 종 그룹에 속하는 S. ibarakius Belokobylskij et Maeto가 한반도에서 알락하늘소(Anoplophora chinensis)의 1령과 2령 유충에 외부기생하는 것으로 확인되었다. 산란유인목을 이용하여 유리알락하늘소와 알락하늘소의 기생봉을 탐색하는 과정에서 이 고치벌이 발견되었다. 이 고치벌의 진단형질과 수컷의 특징, 삽화 및 한반도에 분포하는 종들의 기주목록을 함께 제공하였다.

• 한국산림과학회지
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• 제108권4호
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• pp.493-512
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• 2019

본 연구는 진주시 영천강변의 식물상조사를 통해 귀화식물의 분포현황 및 특성을 파악하여 영천강 수변지역의 식생관리방안 도출에 필요한 기초자료를 제공하기 위하여 실시하였다. 관속식물은 전체 90과 282속 425종 1아종 38변종 6품종으로 우리나라 관속식물 (4881종)의 약 9.62%에 해당하는 총 470 분류군이 출현하였다. 벼과가 77분류군(16.38%)으로 가장 많이 출현하였으며, 국화과 56분류군(11.91%), 콩과 33분류군(7.02%), 사초과 25분류군(5.32%), 장미과 22분류군(4.86%) 등의 순이었다. 지표식물(Ch)은 20분류군(4.25%)이 출현하였으며, 일년생식물과 반지중식물이 많은 비율을 차지하고 있었다. 지상식물은 대교목 23분류군(4.89%), 관목 17분류군(3.61%), 아교목 14분류군(2.97%)이 출현하였고, 수생식물은 36분류군(7.65%)이 출현하였다. 희귀식물은 낙지다리, 새박, 쥐방울덩굴, 창포, 애기등, 목련 등의 6분류군이 출현하였다. 구계학적특정식물은 26과 34속 34종 1변종의 총 35분류군이 출현하였다. 한국특산식물은 66분류군이 출현하였다. 귀화식물은 18과 53속 68종 3변종 총 71분류군이 출현하였으며, 귀화율은 15.1%, 도시화지수는 22.1%였다. 생태계 교란종은 4과 8속 8종 1변종으로 9분류군으로 우리나라 생태계교란종의 64%에 해당하는 종이 출현하였다. 특히, 강의 하류로 갈수록 생태교란종의 출현빈도가 높은 경향이 나타났다. 생태교란 식물중 돼지풀과 가시박은 사람에게 알레르기를 유발하고. 야생동식물의 서식지 파괴와 같은 부정적인 영향이 많이 발생하고 있어서 이들을 인위적으로 제거하는 노력이 이루어져야 할 것이다.

• 한국환경복원기술학회지
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• 제21권3호
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• pp.57-65
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• 2018

The study is conducted to establish the National Protected Areas Integrated System(NPAIS) which includes National Protected Areas(NPAs) and other conservation measures in terms of effective ways for biodiversity conservation. Additionally, it is carried out to evaluate progress toward quantitative expansion goals in Aichi biodiversity Target 11. The NPAIS consists of NPAs and other effective area-based conservation measures(OECMs). There are two different types of OECMs. OECMs type I, including water-source protection Areas(WPA), riparian zones(RZ), fishery-resource protection zones (FPZ), and urban natural park zones(UNPZ), is a potential protected area which is recommended to be incorporated into the NPAs for effective management. OECMs type II means development restriction zones(DRZ), natural recreation forests(NRF), and buffer zones for Korea national arboretum(BKNA). As a result of evaluating the quantitative expansion goals of the NPAIS, terrestrial and inland water protected areas exceed 17% of the quantitative goal in Aichi biodiversity Target 11. The larger the area of individual OECMs and the lower the degree of overlap with NPAs, the higher the contribution of them to the terrestrial and inland water protected areas. DRZ contributes to enlarge more than 3% of quantitative expansion. And RZ and NRF contribute more than 1%. The marine protected areas are expanded by $1,425km^2$ through FPZ, but the expanded area is very small as comparing with the total marine area. It adds only 0.321% to the quantitative expansion. The rest of OECMs also has very poor quantitative expansion contributions in the marine area. Consequently, the NPAIS is effective for quantitative expansion of land areas, but not for marine areas.