• Research Article

    Prediction of Potential Habitat and Damage Amount of Rare·Endemic Plants (Sophora Koreensis Nakai) Using NBR and MaxEnt Model Analysis - For the Forest Fire Area of Bibongsan (Mt.) in Yanggu -

    NBR과 MaxEnt 모델 분석을 활용한 희귀특산식물(개느삼) 분포 및 피해량 예측 - 양구 비봉산 산불피해지를 대상으로-

    Ho-Geun Yun, Jong-Won Lee, Jong-Bin An, Seung-Bong Yu, Gi-Ppeum Bak, Hyun-Tak Shin, Wan-Geun Park, Sang-Jun Kim

    윤호근, 이종원, 안종빈, 유승봉, 박기쁨, 신현탁, 박완근, 김상준

    This study was conducted to predict the distribution of rare·endemic plants (Sophora koreensis Nakai) in the border forests where wildfire damage … + READ MORE
    This study was conducted to predict the distribution of rare·endemic plants (Sophora koreensis Nakai) in the border forests where wildfire damage occurred and to quantify the damage. For this purpose, we tried to derive more accurate results through forest area damage (NBR) according to the Burn severity of wildfires, damage by tree species type (Vegetation map), and MaxEnt model. For Burn severity analysis, satellite imagery (Landsat-8) was used to analyze Burn severity (ΔNBR2016-2015) and to derive the extent of damage. To prepare the Vegetation map, the land cover map prepared by the Ministry of Environment, the Vegetation map prepared by the Korea Forest Service, and the vegetation survey conducted by itself were conducted to prepare the clinical map before and after the forest fire. Lastly, for MaxEnt model analysis, the AUC value was derived by using the habitat coordinates of Sophora koreensis Nakai based on the related literature and self-report data. As a result of combining the Maxent model analysis data with the Burn severity data, it was confirmed that 45.9% of the 44,760 ㎡ of habitat (predicted) area of Sophora koreensis Nakai in the wildfire damaged area or 20,552 ㎡, was damaged. - COLLAPSE
    1 April 2022
  • Research Article

    Effect of Seed Moisture Content on Seed Storage of Dehisced Ginseng Seeds

    종자 수분함량에 따른 개갑 인삼 종자의 저장성 연구

    Su Jeoung Suh, Jin Yu, In-Bae Jang, Young-Chang Kim

    서수정, 유진, 장인배, 김영창

    Ginseng (Panax ginseng C.A. Meyer) is a perennial plant and propagates by seeds, and those need after-ripening for germination. To be … + READ MORE
    Ginseng (Panax ginseng C.A. Meyer) is a perennial plant and propagates by seeds, and those need after-ripening for germination. To be ready for climate change and to ensure a stable seed supply, the technique for storing seeds in short-term and long-term in large quantities is required. In this study, dehisced ginseng seeds from two locations, batch #1 and batch #2, were stored at -3.5℃ with different moisture content, and after 3, 15, and 27 months of storage, the percentage of radicle emergence and shoot emergence were measured. After 3 months, radicle emergence and shoot emergence were normal only when the seed moisture content was more than 35%, and overall, germination was higher in batch #2 than in batch #1. After 15 months, the partially dehydrated seeds, with a moisture content between 45 to 54%, showed the highest germination rates, and most of the undried seeds were spoiled and failed to germinate. Seeds with moisture content lower than 25% had poor germination, too. The partially dehydrated seeds also succeeded in germination and growth in the soil after 15 months of storage, but deteriorated after one more 1 year, too. In summary, ginseng seeds look like have temperate recalcitrant seed characteristics, and partial dehydration allows extension of seed longevity. - COLLAPSE
    1 April 2022
  • Research Article

    Development of Machine Learning Models Classifying Nitrogen Deficiency Based on Leaf Chemical Properties in Shiranuhi (Citrus unshiu × C. sinensis)

    부지화 잎의 화학성분에 기반한 질소결핍 여부 구분 머신러닝 모델 개발

    Won Pyo Park, Seong Heo

    박원표, 허성

    Nitrogen is the most essential macronutrient for the growth of fruit trees and is important factor determining the fruit yield. In order … + READ MORE
    Nitrogen is the most essential macronutrient for the growth of fruit trees and is important factor determining the fruit yield. In order to produce high-quality fruits, it is necessary to supply the appropriate nitrogen fertilizer at the right time. For this, it is a prerequisite to accurately diagnose the nitrogen status of fruit trees. The fastest and most accurate way to determine the nitrogen deficiency of fruit trees is to measure the nitrogen concentration in leaves. However, it is not easy for citrus growers to measure nitrogen concentration through leaf analysis. In this study, several machine learning models were developed to classify the nitrogen deficiency based on the concentration measurement of mineral nutrients in the leaves of tangor Shiranuhi (Citrus unshiu × C. sinensis). The data analyzed from the leaves were increased to about 1,000 training dataset through the bootstrapping method and used to train the models. As a result of testing each model, gradient boosting model showed the best classification performance with an accuracy of 0.971. - COLLAPSE
    1 April 2022
  • Research Article

    A Study on the Distribution of Vascular Plants around Haemyeong Mt. (Seokmodo, Incheon) and the Comparison of Invasive Alien Plants in Surrounding Forests

    해명산(인천광역시 석모도) 일대의 관속식물 분포 및 주변 산림의 침입외래식물 비교에 관한 연구

    Jong-Won Lee, Jin Dong Lee, WoenKi Paik, Ho Geun Yun

    이종원, 이진동, 백원기, 윤호근

    This study was investigated distributed the vascular flora of around Haemyeong Mt., located in Seokmodo, Incheon, and compared invasive alien plants in … + READ MORE
    This study was investigated distributed the vascular flora of around Haemyeong Mt., located in Seokmodo, Incheon, and compared invasive alien plants in the surrounding forest 14 areas. This study carried out to be established a monitoring system for the remarkable plants etc. and used as basic data for biodiversity enhancement and conservation. The survey was conducted 19 times from April 2019 to October 2020. A total of 107 families, 382 genera, 616 species, 15 sub-species, 55 varieties, 8 formas, and 694 taxa were classified in the flora around Haemyeong Mt. areas. 17 taxa for Korea endemic plants. 12 taxa were classified for rare plants, and a total of 79 taxa were identified for floristic target species Ⅰ~Ⅴ. Halophytes consisted of 37 taxa. The invasive alien plants were classified as 66 taxa, and also there has been 126 taxa of them in Seokmodo and surrounding 14 forests. Plants that appeared in all 14 areas out of 126 taxa were classified as 7 taxa, such as Erigeron annuus. However, 48 taxa appeared only once in some areas, but it seems inevitable that they will spread in the future. Therefore, it is necessary to prepare a long-term conservation plan for native plants. - COLLAPSE
    1 April 2022
  • Research Article

    Richardia brasiliensis Gomes (Rubiaceae), a New Invasive Alien Plant in Korea

    미기록 침입외래식물: 멕시코백령풀(꼭두서니과)

    Kang, Eun Su1, Park, Beom Kyun2, Jang, Young-Jong1, Lee, Seong Gwon3 and Son, Dong Chan4*

    강은수, 박범균, 장영종, 이성권, 손동찬

    Richardia brasiliensis Gomes was found in agricultural land in Susan-ri, Seogwipo-si, Jeju-do. Richardia L. is closely related to Diodia L. in Korea, … + READ MORE
    Richardia brasiliensis Gomes was found in agricultural land in Susan-ri, Seogwipo-si, Jeju-do. Richardia L. is closely related to Diodia L. in Korea, those are confirmed to features of calyx, collora and fruit. This species is similar to R. scabra L., but it differs morphologically from the letter in surface structure of mericarp. The mericarp of R. brasiliensis has line like kneel at the adaxial, whereas R. scabra has groove at the adaxial. R. brasiliensis is recorded for the first time in this study and a morphological description, distribution map, and photographs are presented. - COLLAPSE
    1 April 2022
  • Research Article

    Floristic Study of Gayasan National Park in Korea

    가야산국립공원의 관속식물상

    Seahee Han, Hyosun Leem, Hyun-Do Jang, Yoon-Young Kim, Soonku So

    한세희, 임효선, 장현도, 김윤영, 소순구

    The study on vascular plants of Gayasan National Park was conducted in 2016 over a period of 34 days from March to … + READ MORE
    The study on vascular plants of Gayasan National Park was conducted in 2016 over a period of 34 days from March to October 2016. As the study, a total of 768 taxa were recorded, including 118 families, 396 genera, 691 species, 15 subspecies, 51 varieties, and 11 forms. In the vascular plants, four endangered wild plants were recorded, Ponerorchis cucullata (L.) X.H.Jin, Trientalis europaea var. arctica (Fisch.) Ledeb., Cypripedium macranthos Sw., and Pedicularis hallaisanensis Hurus. Taxa of Least Concern (LC) or higher level on National Red List published by the Ministry of Environment of Korea were 21 taxa for example Tricyrtis macropoda Miq., and Lilium cernuum Kom. A total of 37 Korean endemic plants were investigated for example Abies koreana E.H.Wilson and Impatiens atrosanguinea (Nakai) B.U.Oh & Y.P.Hong. A total of 162 taxa of floristic regional indicators (3rd to 5th degree) were investigated including 9 taxa of V, 15 taxa of IV, 38 taxa of III, 45 taxa of II, and 53 taxa of I. Naturalized plants were recorded a total of 46 taxa with a Naturalization Index of 6.0%, the Urbanization Index was calculated to be 14.3% and 5 taxa of ecosystem disturbance plants were investigated such as Sicyos angulatus L., Rumex acetosella L., and Humulus scandens (Lour.) Merr. As the result of comparison with previous studies, in this study a total of 206 taxa were newly identified including 62 families, 144 genera, 184 species, 2 subspecies, 15 varieties, and 5 forms. - COLLAPSE
    1 April 2022
  • Research Article

    A Flora of Vascular Plants of Seondalsan Mountain (Bonghwa-gun, Gyeongsangbuk-do)

    선달산(경상북도 봉화군) 일대의 관속식물상

    Min Woo AN, Seon Jeong, Jae Young Kim, Hyeong Jun Jo, Tae Im Heo, Hye Jeong Lee, Eul Won Seo, Gyu Young Chung

    안민우, 정선, 김재영, 조형준, 허태임, 이혜정, 서을원, 정규영

    This study was investigated to elucidate the distribution of vascular plants and their usefulness of Seondalsan Mountain (1,236 m) in Bonghwa-gun, Gyeongsangbuk-do. … + READ MORE
    This study was investigated to elucidate the distribution of vascular plants and their usefulness of Seondalsan Mountain (1,236 m) in Bonghwa-gun, Gyeongsangbuk-do. The surveys were carried out 20 times from April in 2014 to October in 2020. The vascular plants of Seondalsan Mountain was consisted a total of 638 taxa based on the voucher specimens; 96 families, 341 genera, 562 species, 18 subspecies, 53 varieties, 5 forms. 20 taxa of the Korean endemic plants were recorded and 1 taxa of Critically Endangered (CR), 3 taxa of Vulnerable (VU) and 9 taxa of Least Concern (LC), designated by Korean Forest Service as rare plants, were investigated in this region. Furthermore, Ⅴ, Ⅳ and Ⅲ degrees of floristic regional indicator plants, designated by the National Institute of Ecology, were included 1 taxa, 11 taxa and 28 taxa, respectively. Among them, edible, medicinal, fragrant, industrial, ornamental, ecological restoration, forage/compost plants were included 440 taxa, 505 taxa, 19 taxa, 234 taxa, 335 taxa, 214 taxa and 269 taxa respectively. In addition, 30 taxa of naturalized plants were observed. - COLLAPSE
    1 April 2022
  • Research Article

    Floristic Study of Algific Talus Slope (Yeotan-ri, Jeongseon-gun) in a Specific Area of Forest Biodiversity

    산림생물다양성 특정지역 풍혈지(정선군 여탄리)의 관속식물상

    Jong-Won Lee, Ho-Geun Yun, Tae Young Hwang, Jong Bin An

    이종원, 윤호근, 황태영, 안종빈

    This study carried out a survey to utilize basic data for the conservation of northern lineage plants that are vulnerable to climate … + READ MORE
    This study carried out a survey to utilize basic data for the conservation of northern lineage plants that are vulnerable to climate change, targeting algific talus slope of a specific forest biodiversity region in Yeotan-ri, Jeongseon-eup, Jeongseon-gun, Gangwon-do. The survey was conducted by dividing the wind hole into 625 ㎡ inside and 6,925 ㎡ outside based on the wind hole. The vascular flora were identified as 84 families, 203 genera, 296 species, 6 subs., 27 var., 2 for., and a total of 331 taxa. This was found to be about 7% of 4,724 species of vascular plants in Korea. Plants endemic to the Korean peninsula were identified as 19 taxa, including Syringa fauriei, and 11 taxa for rare plants designated by IUCN. Critically endangered grade (CR) was Paeonia obovata 1 taxa, Endangered grade (EN) was Forsythia saxatilis and Prunus choreiana 2 taxa. A total of 78 taxa were florisitc target species, and 19 taxa were classified for indicator plants in the limestone area. As for alien plants, 20 taxa such as Taraxacum officinale were identified, and the naturalization rate was 6.04% and the urbanization rate was 5.33%. Geographical plants of the study area are 2 taxa of Syringa fauriei and Syringa villosa subsp. wolfii. - COLLAPSE
    1 April 2022
  • Research Article

    Identification of 19 Species of Poisonous Plants from Jeju Island and Construction of a Database Using DNA-barcoding

    DNA-barcoding을 이용한 제주도 자생 독성 식물 19종의 종 식별 및 데이터베이스 구축

    Eunchae Kwon, Joo-Young Kim, Miwha Chang, Minji Lee, Seohyun Moon, Won-Hae Lee

    권은채, 김주영, 장미화, 이민지, 문서현, 이원해

    Food poisoning accidents caused by poisonous plants occur every year. As certain poisonous plants are mistaken for edible plants causing food poisoning, … + READ MORE
    Food poisoning accidents caused by poisonous plants occur every year. As certain poisonous plants are mistaken for edible plants causing food poisoning, accurate species identification of poisonous plants is required. DNA barcodes suitable for species identification of poisonous plants and database that can be used for accurate species identification are necessary for their use in forensic cases. In this study, species identification of 19 poisonous plants native to Jeju Island using seven DNA barcodes (trnH-psbA, trnL-trnF, trnL intron, rbcL, matK, ITS1-ITS4, 18S rRNA) was performed to construct a database containing sequence information and DNA barcode universality. trnL-trnF barcode and ITS1-ITS4 barcode were the easiest markers for PCR amplification and sequence retrieval, and the combination of the two barcodes enabled single species identification in 18 out of 19 plants. Therefore, when an investigation of unknown poisonous plants is requested, combination of trnL-trnF and ITS1-ITS4 barcodes is considered as a primary marker for species identification. The database of recommended DNA barcodes for each poisonous plant presented in this study will be helpful in plants poisoning cases. - COLLAPSE
    1 April 2022
  • Research Article

    Fragrance Pattern and Volatile Components According to Floral Organs in Cymbidium

    화기 부위에 따른 심비디움의 향기 패턴 및 성분 분석

    Yae Jin Kim, Myung Suk Ahn, Su Young Lee, Pil Man Park, Hye Ryun An, Pue Hee Park

    김예진, 안명숙, 이수영, 박필만, 안혜련, 박부희

    This study was conducted to analyze the fragrance characteristics of Cymbidium ‘Saelbit’ and ‘Midan’ according to floral organs. As test materials, full … + READ MORE
    This study was conducted to analyze the fragrance characteristics of Cymbidium ‘Saelbit’ and ‘Midan’ according to floral organs. As test materials, full bloom flowers were divided into four organs: sepal, petal, labellum, and column. Using the gas chromatography (GC) based electronic nose, fragrance patterns, intensity, and volatile components were analyzed. Principle component analysis (PCA) and discriminant factorial analysis (DFA) plots by electronic nose data showed that volatiles of both cultivars have a distinct difference in fragrance patterns according to the floral organs, and the value of fragrance distance and pattern discrimination index (PDI) between samples was significantly high between control and sepals in both cultivars. Among the main fragrance components, several components including nootkatone were detected in both cultivars and all floral organs. However, few components such as decane were found in specific cultivar or floral organs. These results will provide useful information to select suitable materials with desired fragrance and to enhance the utilization of domestic Cymbidium cultivars. In addition, considering the recent negative perception of artificial ingredients and the growing demand for natural materials, continuous researches on scent properties of promising cultivars are required. - COLLAPSE
    1 April 2022
  • Research Article

    Verification of the Effect of Lemon Balm Extract on Triglyceride Control According to the Extraction Solvent

    추출용매에 따른 레몬밤 추출물의 중성지방 조절 효능 검증

    Ji Youn Kim, Kyoung Kon Kim, Hye Rim Lee, Dae Jung Kim, Tae Woo Kim

    김지연, 김경곤, 이혜림, 김대중, 김태우

    This study investigated the effect of lemon balm (Melissa officinalis) extract on improving blood triglycerides according to the extraction solvent … + READ MORE
    This study investigated the effect of lemon balm (Melissa officinalis) extract on improving blood triglycerides according to the extraction solvent using 3T3-L1 cells. Lemon balm was extracted with water (MOW100), 70% ethanol (MOE70), 50% ethanol (MOE50), and 30% ethanol (MOE30). To verify its efficacy on improving blood triglycerides, cell viability, lipid accumulation, triglyceride (TG) content, and expressions of protein kinase A (PKA), adipose triglyceride lipase (ATGL), hormone-sensitive lipase (HSL), perilipin, and CGI-58 proteins were evaluated. Cytotoxicity was not evident up to an extract concentration of 1 ㎎/mL. Lipid accumulation and TG content were decreased in a concentration-dependent manner compared to their levels in the control group. When the MOW100 extract was applied at a concentration of 0.2 ㎎/mL, an inhibitory effect was evident, with lipid accumulation inhibited by 21.3% and TG content reduced by 32.7%. PKA phosphorylation and ATGL HSL and CGI-58 levels were increased. The data indicate that lemon balm extract obtained using water is more efficacious than extracted with ethanol. The aqueous extract shows potential in triglyceride control through lipolysis and lowering triglyceride levels. - COLLAPSE
    1 April 2022
  • Research Article

    Anti-Obesity Effect of Parthenocissus tricuspidata (Siebold & Zucc.) Planch Stem Extracts

    소나무 담쟁이덩굴(Parthenocissus tricuspidata (Siebold & Zucc.) Planch) 줄기 추출물의 항비만 효과

    Joo Ho Yeo, Yu Ju Hyeong, Min Yeong Choi, Jae Won Lee, Na Gyeong Geum, Mi-Yun An, Chuleui Jung, Jin Boo Jeong

    여주호, 유주형, 최민영, 이재원, 금나경, 안미연, 정철의, 정진부

    In this study, we investigated in vitro anti-obesity activity of Parthenocissus tricuspidata (Siebold & Zucc.) Planch stem (PTS) in mouse adipocytes 3T3-L1 … + READ MORE
    In this study, we investigated in vitro anti-obesity activity of Parthenocissus tricuspidata (Siebold & Zucc.) Planch stem (PTS) in mouse adipocytes 3T3-L1 cells. PTS inhibited lipid accumulation and reduced the expression level of the proteins such as C/EBPα, PPARγ and FABP4 associated with adipogenesis in 3T3-L1 cells. In addition, PTS increased lipolysis-related protein expression such as p-AMPK, ATGL and p-HSL, and reduced perilipin-1 in 3T3-L1 cells. Taken together, PTS may have anti-obesity activity through inhibiting adipogenesis and inducing lipid lipolysis in adipocytes. Based on these results, PTS is expected to be used as a potential functional agent for anti-obesity. - COLLAPSE
    1 April 2022
  • Research Article

    Anti-Obesity Effect of Pinus densiflora Leaf Extracts

    솔잎(Pinus densiflora leaf) 추출물의 항비만효과

    Min Yeong Choi, Byel Shin, Ju Hyeong Yu, Joo Ho Yeo, Jae Won Lee, Na Gyeong Geum, Mi-Yun An, Jin Boo Jeong

    최민영, 신별, 유주형, 여주호, 이재원, 금나경, 안미연, 정진부

    In this study, we measured the inhibitory activity of Pinus densiflora leaf (PDL) against excessive lipid accumulation in mouse preadipocyte, 3T3-L1 cells … + READ MORE
    In this study, we measured the inhibitory activity of Pinus densiflora leaf (PDL) against excessive lipid accumulation in mouse preadipocyte, 3T3-L1 cells to investigate whether PDL exerts anti-obesity activity. Lipid accumulation and the protein level were measured using Oil red O staining assay and Western blot analysis, respectively. We observed that PDL inhibited excessive lipid accumulation and decreased the expression of CEBPα, PPARγ and perilipin-1 related to lipid accumulation in 3T3-L1 cells. Therefore, considering these results, PDL can be used as a potential agent for anti-obesity. - COLLAPSE
    1 April 2022