• 생태와환경
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• 제52권2호
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• pp.161-170
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• 2019

Invasive alien plants were identified and recorded in Ulsan city based on field surveys and related literatures. These plants consisted of 147 taxa in total, belonging to 30 families, 93 genera, 144 species, 2 subspecies and 1 variant. The family of Asteraceae was predominant with 42 taxa, followed by Gramineae with 27 taxa and Leguminosae with 15 taxa. According to the result of life-form based distribution analysis revealed that 62 taxa (42.2%) were annual plants, 48 taxa (33.6%) were perennial plants, 34 taxa (23.1%) were biennial plants, and 3 taxa (2%) were woody perennials. Compare to other administrative districts in Korea, prevalence of invasive alien plants in a certain city of Ulsan showed the seventh highest species number followed after Jeju, Gyeonggi, Jeonnam, Incheon, Seoul and Gangwon. On the basis of the results from the country origin analysis, two dominating taxa were introduced from Europe and America, 55 taxa and 51 taxa respectively. The spreading grade of alien plants was elucidated in order of 1 grade (PS) 67 grade (21.1%)>2 grade (MS) 31 taxa (21.1%)>5 grade (WS) 18 taxa (11.6%)>3 grade (CS) 17 taxa (11.6%)>4 grade (SS) 14 taxa (9.5%). Ulsan city is one of a pivotal conduit for the introduction of invasive alien plants. Thereby, reliable management plans are required to monitor these species.

• 한국유기농업학회지
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• 제30권3호
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• pp.393-407
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• 2022

본 논문에서는 Neobacillus sp. JC05의 추출물을 처리한 오이 식물체에서 고구마뿌리혹선충 감염에 대한 식물의 방어 반응을 조사하였다. Neobacillus sp. JC05의 추출물을 처리한 오이 식물체에서는 고구마뿌리혹선충에 의한 감염이 감소하여 control에 비하여 병 발생이 감소하였으며, 식물이 받는 피해도 줄어들었다. 이때 Neobacillus sp. JC05 추출물을 처리한 오이 식물체의 병 저항성 유전자의 발현량을 관찰한 결과, chitinase와 lipoxygenase 유전자의 발현량이 상대적으로 증가하였으며, 식물체 내 산화 스트레스를 감소시키는 항산화효소 중 peroxidase의 활성이 현저히 증가하는 것을 관찰하였다. 또한, Neobacillus sp. JC05 추출물을 처리한 오이 식물체의 토양 FDase 활성이 증가하였으며, 반면 인산가용화효소와 유레아제 활성은 control에 비해 유의하지 않았다. 그러므로, 이전의 연구 결과와 종합하면, Neobacillus sp. JC05의 추출물은 직접적으로 고구마뿌리혹선충의 알 부화율을 억제하고 유충의 사멸률을 높여 토양 내 고구마뿌리혹선충의 밀도를 감소시키기도 하지만 본 연구의 결과에 따르면, 오이 식물체의 고구마뿌리혹선충에 대한 방어 반응을 증가시켜 저항성을 유도하며, 이를 통해 고구마뿌리혹선충병 발생을 감소시키는데 기여하는 것으로 사료된다.

• 대한한방내과학회지
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• 제31권3호
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• pp.448-456
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• 2010

Objective : To summarize and make a reference number of antihyperlipidemic herbal plants worldwide. Method : We surveyed all papers of antihyperlipidemic studies using herbal plants in Pubmed database as "hyperlipidemia AND herb", "hyperlipidemia AND herbal", etc. of Default Tag "Title". The number of papers, the formation of experiments, frequency of herbal plants studies, and main studies were analyzed. Result : Total 178 studies were finally selected. The number of papers were rapidly was increased since 1998. RCT studies were most papers(39.9%). Most studies were about plant sterol or plant stanol studies(78%). 10 papers studied about Herbal plants. Crataegus pinnatifida Bunge, Salvia miltiorrhiza Bunge, Alisma orientale(Sam.) Juz. and so forth were relatively studied much. Conclusion : This study produced an overview of worldwide antihyperlipidemic plants. This result may provide a valuable information for development of Korean herbal medicine against hyperlipidemia in the future.

• 한국식품위생안전성학회지
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• 제14권1호
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• pp.104-114
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• 1999

This study was conducted to find out the proper ways of implementation of Hazard Analysis Critical Control Point (HACCP) concepts applicable to the current Korean food inspection system. The following recommendations are based on an in-depth review of the Canadian Food Safety Enhancement Program (FSEP), which is one of the leading HACCP programs adapted to the food industry. Since 1997, the HACCP system has been voluntarily applied to meat processing plants in Korea in accordance with the Food Protection Law. But the guidelines are obscure and inadequate to expand to the diversity of food plants, and are therefore only applied to a limited number of plants of small scale enterprise. For these reasons, it is necessary to prepare an enhanced food safety control program focused not only on the HACCP plants but also on the non-HACCP plants. The national program should be the fundamental framework of a food safety control policy enforced by all the relevant authorities. The Prerequiste Program of Canadian Food Inspection Agency and Sanitation Standard Operating Procedures (SSOP) of FSIS are good example programs for the non-HACCP plants. These programs, which are a major part of the HACCP system, could easily be adapted to the Korean food industry. To improve the current HACCP implementation guideline, it is necessary to develop a detailed implementation manual, generic HACCP model, training program, and an audit program.

• 한국환경복원기술학회지
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• 제8권1호
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• pp.10-16
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• 2005

This experiment was conducted to study on application of several Korean native plants by seed spray methods for cut slope revegetation, and possibility of replacement almost imported tall fescue seeds by native herbaceous plants. So, we investigated growth and covering rate after sowing native plants seeds at the artificial slope plots in Suwon and the rock exposed cut-slopes in Wonju city. Emergence rate after seed spray at artificial slopes were higher Elsholtzia splendens and Dianthus superbus var. longicalycinus, showing the highest in E. splendens. Also, E. splendens, D. superbus var. longicalycinus, and Agrostemma coronaria were possible to use for seed spray at the rock exposed cut-slopes. The plots of mixed native plants show more seasonal scenery than that of tall fescue. Soil surface run-off by Typhoon was less in plot sown native plants than those of lawn grass, resulting fresh weight of roots was heavier. Thus, we found that the mixed seed spray of several native herbaceous plants, E. splendens, D. superbus var. longicalycinus, and Agrostemma coronaria, were well covered the slopes as tall fescue.

• 한국자원식물학회지
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• 제29권2호
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• pp.264-280
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• 2016

본 연구는 고령산·개명산의 관속식물을 조사하기 위해 수행되었다. 2014년 4월부터 2014년 10월까지 총 8차례에 걸쳐 조사한 결과 관속식물은 91과 279속 391종 4아종 49변종 6품종으로 총 450분류군이 조사되었다. 그 중 산림청 지정 희귀식물은 왜박주가리, 쥐방울덩굴, 태백제비꽃 등 총 5분류군, 특산식물은 진범, 외대으아리, 할미밀망 등 총 6분류군이 확인되었으며 식물구계학적 특정식물은 33분류군이 조사되었다. 귀화식물은 35분류군으로 확인되었으며 귀화율과 도시화지수는 각각 7.7%, 10.9%로 나타났다. 조사된 450분류군의 유용도는 식용 186분류군(27%), 목초용 173분류군(25%), 약용 149분류군(22%), 관상용 51분류군(7%), 목재용 20분류군(3%), 염료용 13분류군(2%), 섬유용 4분류군(1%), 공업용 5분류군(1%)그리고 용도가 밝혀지지 않은 식물이 92분류군(13%)으로 나타났다.

• 한국자원식물학회지
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• 제32권2호
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• pp.170-200
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• 2019

본 연구는 대구광역시 가창면 최정산의 관속식물을 연구하기 위해 수행되었다. 2017년 3월부터 2018년 10월까지 총 22회에 걸쳐 조사가 수행되었고, 조사된 관속식물은 총 104과, 297속, 495종, 4아종, 51변종, 11품종을 포함하여 560분류군으로 정리되었다. 특산식물 15분류군, 희귀식물 5분류군; 취약종(Vulnerable) 1분류군, 약관심종(Least concern) 4분류군, 적색목록식물 5분류군; 취약종(Vulnerable) 1분류군, 관심대상종(Least Concern) 3분류군, 미평가종(Not Evaluated) 1분류군, 식물구계학적 특정식물 54분류군; V등급종 1분류군, IV등급종 5분류군, III등급종 10분류군, II등급종 12분류군, I등급종 26분류군, 귀화식물 36분류군으로 나타났다. 귀화식물 36분류군으로 나타났으며 최정산 총 출현 종 수 대비 각 특이종의 비율은 앞의 표로 나타내었다(Table 3). 용도별 구성은 식용식물 246분류군(29.2%), 약용식물이 228분류군(27.1%), 관상용물 164분류군(19.5%), 목재용식물 61분류군(7.2%), 목초용식물 28분류군(3.3%), 공업용식물 13분류군(1.5%), 그리고 섬유용식물 8분류군(0.9%)으로 나타났다. Oh (1971)의 선행연구와 귀화식물 목록 비교 결과 28분류군이 추가적으로 확인되었다. 이는 산악자전거 도로 등으로 과거에 비해 사람들의 왕래가 잦아짐으로서 귀화식물의 유입이 더 잦아진 결과로 판단된다. 이러한 결과로 인해 현재 자생하고 있는 식물들의 서식지에 위협이 될 우려가 있다.

• Plant Biotechnology Reports
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• 제5권2호
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• pp.169-175
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• 2011

In this study, the JIP test was exploited to assess drought-tolerance of transgenic rice overexpressing OsNAC10. Two types of promoters, RCc3 (root-specific) and GOS2 (constitutive), were used to drive the transcription factor OsNAC10, a gene involved in diverse functions including stress responses. Three-month-old plants were exposed to drought for 1 week and their fluorescence kinetics was evaluated. Our results showed that drought-treated non-transgenic plants (NT) have higher fluorescence intensity at the J phase (2 ms) compared to transgenic plants, indicating a decline in electron transport beyond the reduced plastoquinone ($Q_A^-$). As manifested by negative L bands, transgenic plants also showed higher energetic connectivity and stability over NT plants under drought conditions. Also, the pool size of the end electron acceptor at the photosystem I was reduced more in NT than in transgenic plants under drought conditions. Furthermore, the transgenic plants had higher $PI_{total}$, a combined parameter that reflects all the driving forces considered in JIP test, than NT plants under drought conditions. In particular, the $PI_{total}$ of the RCc3:OsNAC10 plants was higher than that of NT plants, which was in good agreement with their differences in grain yield. Thus, the JIP test proved to be practical for evaluating drought-tolerance of transgenic plants.

• 한국환경과학회지
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• 제22권2호
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• pp.187-193
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• 2013

Dry matter allocation characteristics of Calystegia soldanella, grown in pots, was analysed to assess its plasticity in response to water-stressed conditions. As water was withheld leaf water potential between the two watering treatments was similar during the first 6 days, followed by a rapid decrease in water-stressed plants. The minimum leaf water potential was -1.50 MPa on day 15 and the maximum leaf water potential was about -0.5 MPa on day 0 in water-stressed plants. In well-watered plants leaf water potential was maintained almost consistently throughout the experiment. There was no significant difference in plant dry weight between the two watering treatments for 9 days after the start of experiment and that was remarkably increased thereafter, compared with that remained without any increase in water-stressed plants. In dry mass partitioning, however, the water-stressed plants showed a great plasticity, showing that there were 1.81, 1.35 and 0.81 times increase in root, stem and leaf, respectively. Dry mass partitioning in well-watered plants varied from 2% to 5%. The difference of dry mass partitioning between the two watering treatments was reflected in leaf mass per unit area (LMA) and root/shoot (R/S) ratio. LMA in water-stressed plants was lower than that in well-watered plants, while R/S ratio in water-stressed plants was higher in well-watered plants. This means that the water-stressed plants reduced its leaf area and increased dry mass partitioning into root and stem during the progress of soil drying. These results indicate that Calystegia soldanella inhabiting in sand dune cope with water stress with high plasticity which can adjust its dry mass partitioning according to soil water conditions.

• 환경영향평가
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• 제22권2호
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• pp.125-134
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• 2013

Plant virus coat (CP) gene-mediated protection is one of the best known approaches to protect against virus resistant transgenic plants. Transgenic N. benthamiana plants containing the CP gene of Zucchini green mottle mosaic virus (ZGMMV) were used for the environmental risk assessment of the living modified (LM) plants with plant virus resistance. The most optimal co-infection method of both ZGMMV and CMV (Cucumber mosaic virus) on Non-LM and CP-expressing LM tobacco plants was established and co-infection of CMV and ZGMMV was confirmed by polymerase chain reaction (PCR). To address the effects of LM tobacco plants on the mutation of the virus, in-vitro transcripts of CP and Replicase (Rep) derived from CMV and/or ZGMMV were inoculated onto Non-LM or LM tobacco plants. Mutation frequency of CP and Rep from CMV and ZGMMV was examined through six serial passages in Non-LM and LM tobacco plants. Little actual frequency of mutation was estimated, probably due to the limited number of transgenic plants tested in this study. However, it does not suggest environmental safety of these CP-mediated LM plants. Further study at a larger scale is needed to evaluate the environmental risk associated with the CP-expressing LM plants.