• Journal of Plant Biology
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• 제29권3호
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• pp.207-231
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• 1986

To clarify the species of genus Deutzia (Saxifragaceae, s. l.) in Korea, the taxonomic description was undertaken and interspecific relationships was discussed based on the external morphology with the light and scanning electron microscopes and the distributional pattern with specimens deposited in the herbaria. The presence or absence, number of rays, position and frequency of the stellate trichome, inflorescence and the morphology and venation pattern of petal were approved as the good characters to classify the Korean Deutzias. Although 17 kinds of Deutzia were reported in Korea hitherto, 9 kinds were excluded owing to the taxonomic treatment based on the comparative external morphology and the distributional uncertainty. Thus genus Deutzia in Korea could be rearranged as 2 sections, 3 subsection, 7 species and 1 variety. Among them, 4 species were considered as the endemic species in Korea.

• 한국자원식물학회지
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• 제34권6호
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• pp.633-660
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• 2021

This study was carried out to elucidate the distribution of vascular plants and their usefulness of Mt. Munsusan (1,205 m) in Bonghwa County, North Gyeongsang Province, South Korea. The vascular plants that were investigated in 2 years (2019 ~ 2020) with 15 times consisted a total of 571 taxa; 94 families, 310 genera, 496 species, 4 subspecies, 63 varieties and 8 formas. For the Korean endemic plants, 17 taxa were recorded and 3 taxa of Vulnerable Species (VU) and 9 taxa of Least Concerned species (LC) categorized by the Korean Forest Service as rare plants were investigated in this region. Furthermore, IV, III degrees of floristic regional indicator plants designated by the Korean Ministry of Environment included 8 taxa and 27 taxa, respectively. Among them, edible, medicinal, ornamental, feed/composting, industrial plants were 391 taxa, 359 taxa, 301 taxa, 241 taxa, 217 taxa, respectively. In addition, 25 taxa of naturalized plants were observed.

• 한국자원식물학회지
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• 제8권3호
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• pp.303-318
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• 1995

금강초롱꽃과 근연분류군 4속 9분류군에 대한 표피 및 화분의 미세구조, 동위효소 분석을 통하여 금강초롱꽃속(屬)이 특산속으로서 구분이 가능한가를 알아보았다. 표피는 미세구조에서는 잎이 표면과 이면세포의 모양, 화피의 세포형태, 종피의 미세구조 등이 속과 종을 구분하는데 유용한 형질로 나타났으며, 화분학적 형질에서는 표면무늬와 전체 형태에 많은 변이가 있어 속내 분류군들의 유집 및 분류가 불가능하였다. 동위효소 분석에서는 분류군에 따라 지역, 집단간 변이가 매우 심하게 나타났지만 금강초롱꽃과 가장 유사한 분류군은 초롱꽃과 섬초롱꽃으로 유집되어 나타났다. 이상의 결과에서 금강초롱꽃속(屬)은 근연 분류군과 표피의 형질, 동위효소 분석등에서 근연 분류군과 뚜렷한 차이가 있어 특산속으로서 잘 구분되었다.

• 식물분류학회지
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• 제42권2호
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• pp.116-125
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• 2012

한반도 특산식물인 매미꽃 자생 집단의 보전대책 수립을 위한 기초자료로 활용하고자 자생 집단의 분포와 식생환경 및 보전지위 평가를 수행하였다. 문헌자료 및 표본정보 수집과 현지조사를 통해 분포도를 작성한 결과 매미꽃은 지리산과 백운산 등 경상남도와 전라남도를 중심으로 주로 한반도 남부지방에 집중 분포하는 것으로 확인되었다. 또한 자생 집단은 주로 해발 227~744 m의 범위에 분포하였으며, 경사는 $5{\sim}11^{\circ}$ 계곡의 중 하부 지역에 많이 분포하였다. 8개 자생 집단에 대한 식생조사 결과 29개 조사구에서 총 238분류군이 출현하였으며, 각 조사구 내 초본층의 피도와 빈도를 기초로 매미꽃의 중요치를 산출한 결과 평균 25.34%로 나타났다. 8개 집단 내에 출현 종의 다양도는 평균 1.52였으며, 균등도와 우점도의 평균은 각각 0.83과 0.17로 산출되었다. 수집된 생물학적 자료를 바탕으로 IUCN 적색목록 기준에 의한 보전 지위를 평가한 결과 매미꽃은 Near Threatened(준위협종)에 포함되는 것으로 나타났으며, 이에 따라 매미꽃 자생 집단의 지속가능한 보존을 위한 전략수립과 필수적인 기초연구의 내용 및 방법이 논의 되었다.

• 한국자원식물학회지
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• 제29권1호
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• pp.90-109
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• 2016

본 연구는 경기도 남양주시에 위치한 천마산의 관속식물상의 조사를 위해 수행되었으며, 이를 대상으로 한반도고유종, 희귀 및 멸종위기식물, 적색식물, 구계학적특정식물종, 기후변화 적응대상 식물, 귀화식물을 조사하였고 또한 이미 조사가 이루어진 주변지역의 산과 종 조성을 비교분석하였다. 2012년부터 2014년까지 총 22회에 걸쳐 현지조사를 실시한 결과, 94과 266속 378종 2아종 46변종 7품종의 총 433분류군의 관속식물이 확인되었다. 이 중에서 산림청(국립수목원)이 지정한 특산식물은 13분류군이, 환경부지정 고유종은 10분류군이 확인되었다. 희귀 및 멸종위기식물은 IUCN 평가기준에 따라 국립수목원이 제시한 기준에 따라 약관심종(LC) 9분류군, 취약종(VU) 2분류군, 위기종(EN) 1분류군 등 총 12분류군이 확인되었으며, 환경부에서 제시한 적색자료집에 따르면 관심대상(LC) 7분류군, 미평가(NE) 1분류군 등 총 8분류군이 확인되었다. 환경부지정 멸종위기 야생식물 I, II 등급종은 확인되지 않았다. 환경부지정 구계학적 특정식물종은 49분류군이 확인 되었으며, 이 중 정밀생태 조사종인 IV등급에 해당하는 종은 도깨비부채, 만주바람꽃, 미역고사리, 점현호색 4분류군이 확인되었다. 국립수목원지정 기후변화 적응대상식물 300종 중에서 14분류군이 확인되었다. 귀화식물은 19분류군이 확인되어 귀화율 4.3%, 도시화지수 5.9%를 보였다. 광주산맥내 위치하는 산인 축령산, 화악산, 명지산과 비교하여 190분류군이 공통적으로 분포하였으며, 51분류군은 천마산에서만 확인되었다.

• 한국자원식물학회지
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• 제22권6호
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• pp.558-570
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• 2009

The vascular plants in Jeju composed of 21 families 62 genera, 190 species, 7 varieties with 197 taxa in Pteridophyta, 3 families 5 genera, 7 species, 3 forma with 10 taxa in gymnosperm (Coniferophyta) and 143 families 703 genera, 1,622 species, 114 varieties and 47 forma with 1,783 taxa in Endospermae. The total number of taxa was 1,990 consisting 167 families, 770 genera, 1,818 species, 121 varieties and 50 forma. Three families, 4 genera 4 species and 1 variety in Pteridophyta and 1 family, 1 genus I species, 1 forma of Coniferophyta were endemic to Jeju. Five families, 8 genera and 8 species in the Monocotyledonae of Endospermae and 23 families, 32 genera, 21 species, 16 varieties and 7 forma and 44 taxa in Cholipetalae, and 9 families, 24 genera, 12 species, 13 varieties and 7 forma, total 32 taxa in Sympetalae were endemic to Jeju. Total 90 taxa with 41 families, 69 genera, 46 species, 29 varieties and 15 forma were drawn up as endemic plants in Jeju. As the numbers show on, Jeju has more biodiversity especially plant diversity than any other places in Korea. It was an important region in regard to geographical position. The rarity on plants from Jeju has been assessed based on the IUCN red list categories and criteria at both regional and global levels. There was one species in each extinct (EX) and extinct in the Wild (EW). The EX and EW species were Rhododendron saisiuense Nakai (Ericaceae) and Asplenium antiquum Makino (Aspleniaceae), respectively. Three taxa, Rhododendron dauricum L. (Ericaceae), Lycopodium sieboldii Miq., and Lycopodiella cernua (L.) Serm (Lycopodiaceae) were species that is extinct in the region (RE). Sixty-one taxa were critically endangered (CR), 13 were endangered (EN), and 83 were vulnerable (VU) at regional level. The taxa listed on a Red List corresponds 26.9% of total taxa in Jeju. At global level, there were 19 taxa in CR, 4 in EN, and 1 in VU (Vulnerable) as the category of threat. The rest taxa (133 taxa) were classified as Least Concern (LC). According to the results of the assessment, conservation measures must be taken for total of 157 species that were categorized in threaten including one of EX, one of EW and three extinct in the region immediately. Of 157 species, 61 were CR, 13 are EN and 83 were VU.

• Journal of Forest and Environmental Science
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• 제24권2호
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• pp.79-88
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• 2008

Twenty-eight of 44 Indian Ceropegia species are endemic and their survival is threatened. As a step towards conservation, we implied in vitro methods for the sustainable propagule production in C. hirsuta, C. lawii, C. maccannii, C. oculata and C. sahyadrica. Effects of explant, growth regulators, sucrose and photoperiod were studied. High frequency microtuber production was achieved with the seedling-apical buds, grown on MS medium containing 4-6 mg $1^{-1}$ BAP, 3-8% (w/v) sucrose, under continuous illumination. Each microtuber, when subcultured proliferated to form a cluster of secondary microtubers. Every primary and secondary microtuber bore at least one shoot-bud and a root primordium. Each tuber (formed with any of the significantly effective treatments) weighed more than 500 mg, enough to plant directly in non-sterilized soils. Microtubers could be produced and proliferated round the year. Proliferation could be solely attributed to in vitro procedures as these plants bear solitary tubers in vivo. Microtubers could be sprouted in vitro to prepare ready to pot plantlets. As, this novel method succeeded for all five species, though they belong to different eco-physiological backgrounds, we recommend its implementation in the conservation programs for a broader range of Ceropegia species, supported by other integrated strategies.

• Journal of Plant Biology
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• 제37권2호
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• pp.141-149
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• 1994

Levels of genetic diversity, population genetic structure, and gene flow in Hosta yingeri, a herbaceous perennial endemic to Taehuksan, Sohuksan, and Hong Islands, were investigated. Starch gel electrophoresis was conducted on leaves for 101 plants collected from three populations. Although the distribution of thespecies is restricted in the islands, it maintains high levels of genetic variatin; 64% of polymorphic loci in at least one population (Ps), the mean number of alleles per locus (Ap) of 1.92, and the mean effective number of alleles per locus (Aep) of 1.52. Overall, mean genetic diversity (Hep=0.250) was substantially higher than mean estimate for species with very similarlife history traits (0.102). Large populaton size, the persistence of multiple generations within populations, high fecundity, predominantly outcrossing breeding system, large size of pollinator visitation areas may be explanatory factors contributing the higher level of genetic diversity maintained within populations. Analysis of fixation indices showed an overall slight excess of heterozygotes (mean FIS=-0.066) relative to Hardy-Weinberg expectations, which may in part be due to the near self-incompatible breeding system in the species. Significant differences in allele frequencies among populaitns were found for 14 out of 16 polymorphic loci (P<0.05). Slightly more than 80% of the total variation in the species was common to all populations (GST=0.198). As expected, indirect estimate of the number of migrants per generation (Nm=0.45, calculated from mean GST) and nine private alleles found in the three populations indicate that gene movement among three isolated island populations was low.

• 한국환경복원기술학회지
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• 제9권3호
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• pp.59-75
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• 2006

The vascular plants of this site was listed 360 taxa; 86 families, 229 genera, 311 species, 42 varieties and 7 forms. Specific plant species by floral region were total 40 taxa; 2 taxa(Crypsinus hastatus, Prunus yedoensis) in class V, Patrinia rupestris in class IV, 6 taxa(Elymus mollis, Carex laticeps, Poncirus trifoliata, Melia azedarach var. japonica, Koelreuteria paniculata, Crepiastrum lanceolatum) in class III, Cirsium schantarense in class II, 30 taxa(Lygodium japonicum, Pteris multifida, Phacelurus latifolius, Asparagus cochinchinensis, Ficus erecta, Machilus thunbergii, Zanthoxylum planispinum, Euphorbia esula, Mallotus japonicus, Cayratia japonica, Camellia japonica, Glehnia littoralis, Lysimachia fortunei, Messerschmidia sibirica, Ixeris repens etc.) in class I. The naturalized plants in this site were 14 families, 34 genera, 41 species, 1 varieties, 42 taxa and naturalization rate was 20.3% of all 207 taxa vascular plants. Based on the list of the rare plants by the Forest Research Institute, 2 taxa were recorded in the studied areas; Phacelurus latifolius, Crypsinus hastatus and based on the list of Korean endemic plants, 7 taxa were recorded; Populus tomentiglandulosa, Filipendula glaberrima, Prunus yedoensis, Forsythia koreana, Paulownia coreana, Weigela subsessilis, Carpinus coreana. So, wild plants disturbing ecosystem like Solanum carolinense and Ambrosia artemisiifolia var. elatior have been increasing, it needs continuing control and conservation measures on the plant ecosystem.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2018년도 추계학술대회
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• pp.23-23
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• 2018

Taiwan, formerly known as Formosa, located on tropical and subtropical climate zones with abundant biological resources. According to the latest version of the Flora of Taiwan, there are 4339 species of vascular plants including 1054 endemic species. First, Taiwania (Taiwania cryptomerioides), named after its native island of Taiwan, have been isolated more than 500 secondary metabolites, including lignans, terpenoids, steroids, and flavonoids. Several of the metabolites are reported to have antibacterial, antifungal, antimite, antitermite and antitumor activities. In order to investigate plant secondary metabolic diversity toward industrial applications, we established deep transcriptome resources for non-model plants and fungi to produce terpenoid metabolites of economic importance. Second, many plants of Lauraceae have been utilized in folk medicine for their exciting bioactivities. The twigs and leaves from 27 tree species of Lauraceae grown in Taiwan were performed to evaluate potential bioactivity. The leaves of Cinnamomum osmophloeum are traditionally used in folk medicines, and many biological activities have been identified, such as antibacterial, antifungal, antitermite, antidiabetic, antihyperuricemia, antiinflammatory, and antioxidant activities. However, C. osmophloeum has nine chemotypes with various secondary metabolite profiles. In order to efficiently produce active compounds, we established the genetic markers to identify the chemotype plants. Finally, Cinnamomum kanehirae is the host of the medicinal mushroom Antrodia cinnamomea. Several in vivo and in vitro studies indicated that A. cinnamomea possesses a diverse range of biological activities. Because of the potential pharmacological application, we established the transformation system to enhance the triterpenoid contents production.