• Title/Summary/Keyword: javanica

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A Study on Vegetation Changes for 11years and Vegetation Structure in the Green Buffer Zone of Sihwa Industrial Complex (시화공단 완충녹지의 11년간(2006~2017년) 식생변화 및 식생구조 연구)

  • Choi, Jin-Woo
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.21 no.5
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    • pp.81-96
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    • 2018
  • The purpose of this study is to analyze the characteristics of vegetation changes and structures in the buffer green zone of Sihwa Industrial Complex and propose environmental, ecological and multi-functional vegetation management directions. The density of the Pinus thunbergii decreased from $23.1trees/100m^2$ in 2006 to $9.6trees/100m^2$ in 2017 due to the influence of thinning works. Its green volume increased from $0.97m^3/m^2$ to $2.02m^3/m^2$, contributing to the improvement of the atmospheric environment and promotion of biodiversity. The density of deciduous broad-leaved trees at the top maintained at $18{\sim}21trees/100m^2$. In the areas where the understory vegetation was removed, Pueraria lobata spread as an invasive plant and disturbed the forest. In the areas where the understory vegetation was not removed, various native plant species including the Rhus javanica and Celtis sinensis were introduced and contributed to the development of a forest in a multiple structure. There was a concern with the spread of Robinia pseudoacacia which developed into understory vegetation in Pinus thunbergii forest and some canopy forest. The study proposed vegetation management directions for the back, top and front side according to the physical structure of large-scale buffer green zone formed in a long linear form and the usage characteristics of adjacent land.

Occurrence of the Root-Knot Nematode species in Vegetable Crops in Souss Region of Morocco

  • Janati, Soukaina;Houari, Abdellah;Wifaya, Ahmed;Essarioui, Adil;Mimouni, Abdelaziz;Hormatallah, Abderrahim;Sbaghi, Mohamed;Dababat, Abdelfattah A.;Mokrini, Fouad
    • The Plant Pathology Journal
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    • v.34 no.4
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    • pp.308-315
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    • 2018
  • Root-knot nematodes 'Meloidogyne spp' are the most destructive group of plant parasitic nematodes causeing serious losses in vegetables crops and this damages worsened when crops grown under greenhouses conditions. In this sutdy, the distribution and characterization of root-knot nematode species collected from the Souss region of Morocco where vegetables crops intensively cultivated were determined by using both morphological and molecular tools. Out of the 110 samples collected from different greenhouses 91 (81.7%) were found to be infested with root-knot nematodes. Thirty-seven populations of root-knot nematodes were morphologically identified based on perineal patterns as well as molecularlly using species-specific primers. The obtained results indicated that Meloidogyne javanica and M. incognita were identified in 86.4% and 13.5% of the total populations, respectively. The lowest incidence of root-knot nematodes (64%) was found in Toussous, whereas the highest frequencies of 100% and 90% were detected in Taddart and Biogra, respectively. As the majority of the samples have been infested with Meloidogyne species; this indicates that there is an urgent need to provide farmers with a proper control strategy.

Analysis on the Flora and Vegetation for Ecological Restoration of Local Streams - In case of local streams in Namwon - (지방하천의 생태적 복원을 위한 식물상 및 식생분석 - 남원시 지방하천을 대상으로 -)

  • Park, In-Hwan;Jang, Gab-Sue;Cho, Kwang-Jin;Ra, Jung-Hwa
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.12 no.6
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    • pp.153-163
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    • 2009
  • This study was carried out to offer ecological restoration plan of local streams by analyzing the vegetation and flora around four local streams (Pungchoncheon, Namchangcheon, Ganggicheon, Woncheoncheon) in Namwon. Flora and vegetation investigation was done at April 2007 to August 2007, and June 2009. The 194 of vascular plants were identified which contain 53 families, 143 genera, 194 species. The Family frequencies arranged by the order of Family Compositae (14.4%), Family Gramineae (13.4%) Family Leguminosae (6.7%) and Family Polygonaceae (5.2%). The naturalized plants were listed as 33 species, and their naturalization ratio and urban index were found to be 17.0%, and 12.2%, respectively. In this study a total of 21 relev$\acute{e}$s collected and analyzed. 6 plant communities are differentiated : Riverine softwood forests (Phragmites japonica-Salix gracilistyla community), Perennial herb vegetations on lotic water zone (Phragmites japonica community, Phalaris arundinacea community), Perennial herb vegetations on lentic water zone (Persicaria thunbergii-Typha orientalis community, Phragmites communis community), Annual or biennial vegetations on waterside (Persicaria thunbergii community). Species showing the higer value in the plant communities were Persicaria thunbergii, Phragmites japonica, Artemisia princeps, Humulus scandens, Bidens frondosa, Oenanthe javanica, Agropyron tsukusinense var. transiens, Stellaria aquatica, and Lactuca indica var. laciniata.

Effects of Vegetable Extracts by Solvent Separation on Alcohol Dehydrogenase Activity from Saccharomyces cerevisiae (채소의 용매분획 추출물들이 Saccharomyces cerevisiae의 alcohol dehydrogenase 활성에 미치는 영향)

  • Kang, Bae-Kwang;Jung, Soon-Teck;Kim, Seon-Jae
    • Korean Journal of Food Science and Technology
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    • v.34 no.2
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    • pp.244-248
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    • 2002
  • The effects of extracts from bean sprout (Glycine max), dropwort (Oenathe javanica) and radish (Raphanus sativus Var. hortensis for. acanthiformis) by solvent separation on alcohol dehydrogenase (ADH) activity in vitro were investigated. The extracts were obtained from alcohol extracts of bean sprout, dropwort and radish, followed by solvent separation. Aqueous fractions facilitated much higher ADH activity than organic fractions. The facilitating rates of bean sprout, dropwort and radish in aqueous fractions were 125.75%, 104.94% and 87.63%, respectively. Basic fractions showed the highest facilitating rate with about 40%. Also other fractions showed below 20% facilitating rate and didn't show great difference from organic fractions. Phenolic fractions didn't show great effect on ADH activity.

Study on Antioxidative Activity of Plant Extracts in Fish Oil (식물 추출물이 어유의 산화 안정성에 미치는 영향)

  • Jang, Ji-Sun;Hong, Jang-Hwan;Lee, Ki-Teak
    • Food Science and Preservation
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    • v.13 no.6
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    • pp.726-731
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    • 2006
  • Extract from forty four species of natural plants in Korea were obtained. Each extinct (1,000 ppm) was added into fish oil and their antioxidative activities were screened by rancimat, From the results, seven species including Brassica juncea, Solanum tuberosum, Capsella bursa, Ulums davidiana, Broussonetia kazinoki, Oenanthe javanica, and Rhus chinensis were selected due to their relatively prolonged induction periods. When the concentration (100 - 1,000 ppm) of the selected extract was considered, the most prolonged induction period was observed from Solanum tuberosum throughout the studied concentrations, suggesting that its extinct showed the strongest antioxidative activity against fish oil. In addition, peroxide value (POV) and thiobarbituric acid reactive substance (TBARS) value were considered at $60^{\circ}C$ for 5 days. Among the selected extract, extract from Solanum tuberosum showed the lout POV while the extract from Brassica juncea var showed the least TBARS values after 5 days. Also, the free radical scavenging effect against DPPH radical were studied with the selected extract, showing that the extract from Rhus chinensis was found to be the most effective.

A Basic Experiment for a Small Sewage Treatment System Using Aquatic Plants and Microbes (소형 식물·미생물 정화조 시스템 개발을 위한 기초 실험)

  • Lee, Eun-Heui;Rhee, In-Sook;Jung, Dong-Sun
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.5 no.4
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    • pp.31-38
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    • 2002
  • The rate of sewage treatment in South Korea was 68% in the late 1999. Sewage treatment is mostly made near big cities such as Seoul and Busan, and it is little in rural areas. Wastewater from households goes to streams directly without treatment in rural areas and pollutes streams. It is necessary to improve the progress for treatment of nutrients such as N and P which cause eutrophication in streams and lakes, because sewage treatment system in South Korea focuses on treatment of basic organic matters. Therefore it will contribute to improve discharged water quality if small sewage treatment systems by aquatic plants and microbes are introduced to rural areas where are not connected to local sewage treatment facility. This experiment was conducted to find out the best way using aquatic plants and microbes to purify wastewater from households through individual sewage treatment system. Phragmites communis, Iris pseudoacorus, Acorus calamus var. angustatus, Typha orientalis and Oenanthe javanica were used for this experiment. BOD, COD, SS, T-N and T-P were analyzed following standard methods for wastewater. The result shows that wastewater was roughly purified through pebbles and sands, and highly purified through aquatic plants and microbes especially in T-N and T-P. Iris pseudoacorus is the most effective in reduction of COD and BOD level. This system will work even in winter when plants die because microbes will be still working.

Monitoring of Fasciola Species Contamination in Water Dropwort by COX1 Mitochondrial and ITS-2 rDNA Sequencing Analysis

  • Choi, In-Wook;Kim, Hwang-Yong;Quan, Juan-Hua;Ryu, Jae-Gee;Sun, Rubing;Lee, Young-Ha
    • Parasites, Hosts and Diseases
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    • v.53 no.5
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    • pp.641-645
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    • 2015
  • Fascioliasis, a food-borne trematode zoonosis, is a disease primarily in cattle and sheep and occasionally in humans. Water dropwort (Oenanthe javanica), an aquatic perennial herb, is a common second intermediate host of Fasciola, and the fresh stems and leaves are widely used as a seasoning in the Korean diet. However, no information regarding Fasciola species contamination in water dropwort is available. Here, we collected 500 samples of water dropwort in 3 areas in Korea during February and March 2015, and the water dropwort contamination of Fasciola species was monitored by DNA sequencing analysis of the Fasciola hepatica and Fasciola gigantica specific mitochondrial cytochrome c oxidase subunit 1 (cox1) and nuclear ribosomal internal transcribed spacer 2 (ITS-2). Among the 500 samples assessed, the presence of F. hepatica cox1 and 1TS-2 markers were detected in 2 samples, and F. hepatica contamination was confirmed by sequencing analysis. The nucleotide sequences of cox1 PCR products from the 2 F. hepatica-contaminated samples were 96.5% identical to the F. hepatica cox1 sequences in GenBank, whereas F. gigantica cox1 sequences were 46.8% similar with the sequence detected from the cox1 positive samples. However, F. gigantica cox1 and ITS-2 markers were not detected by PCR in the 500 samples of water dropwort. Collectively, in this survey of the water dropwort contamination with Fasciola species, very low prevalence of F. hepatica contamination was detected in the samples.

Application of Rhizofiltration using Lettuce, Chinese Cabbage, Radish Sprouts and Buttercup for the Remediation of Uranium Contaminated Groundwater (상추, 배추, 무순, 미나리를 이용한 뿌리여과법(rhizofiltration)의 우라늄으로 오염된 지하수 정화 효율 규명)

  • Han, Yikyeong;Kim, Seyoon;Heo, Hyojin;Lee, Minhee
    • Journal of Soil and Groundwater Environment
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    • v.19 no.6
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    • pp.37-48
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    • 2014
  • Lab scale rhizofiltration by using four plants was performed to investigate the uranium removal efficiency from groundwater. Lettuce (Lactuca sativa L.), Chinese cabbage (Brassica campestris L.), radish sprouts (Raphanus sativus L.) and buttercup (Oenanthe javanica) were cultivated during 3 weeks in the phytotron. Glass jar ($12cm{\times}12cm{\times}8cm$ for each), containing 350 ml of the artificially uranium contaminated solution was used for 72 hours of the rhizofiltration. In experiments with different initial uranium concentration ($18.00{\mu}g/L$, $31.00{\mu}g/L$, $84.00{\mu}g/L$ and $116.00{\mu}g/L$) in solution, more than 70% of the initial uranium were removed by using lettuce, Chinese cabbage and radish sprouts and the residual uranium concentration in solution maintained lower than USEPA water tolerance limit ($30{\mu}g/L$). From the rhizofiltration experiments at various pH conditions, the highest uranium removal for all four plants was acquired at pH 3 in solution. Rhizofiltration experiments testing two field samples of groundwaters having high uranium concentrations ($86.00{\mu}g/L$ and $173.00{\mu}g/L$) were duplicated and more than 83% of the initial uranium were removed from the groundwater within 72 hours of rhizofiltration by using radish sprouts, which, suggests that the rhizofiltration can be a useful process to remediate uranium contaminated groundwater in the field. After the rhizofiltration experiment, the SEM and EDS analyses for the root surface of the radish sprouts were conducted, suggesting that the main mechanism of the rhizofiltration for the removal of uranium from groundwater would be surface precipitation on the root surface of the plant.

Review of Clinical Studies of Herbal Medicine Treatment for Molluscum Contagiosum (전염성 연속종의 한약 치료에 대한 임상 연구 동향 - 2000년대 이후 발표된 임상 연구 논문을 중심으로 -)

  • Doh, Tae Yun;Park, Sul Gi;Lee, Sun Haeng;Lee, Jin Yong
    • The Journal of Pediatrics of Korean Medicine
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    • v.33 no.1
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    • pp.1-16
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    • 2019
  • Objectives The purpose of this study is to investigate recent clinical studies on the effect of herbal medicine in molluscum contagiosum in China, and to seek better methods to treat and study for molluscum contagiosum in Korea. Methods We searched the clinical studies from the China Academic Journal (CAJ) in China National Knowledge Infrastructure (CNKI) by key words '傳染性軟?', '治療', '中?治療', '中藥' from January 2001 to August 2018. We analyzed the literature in regards to the treatment methods and results. Results Among the 103 searched studies, 9 randomized controlled trials, 2 controlled clinical trials, and 16 case studies were selected and analyzed. In most of the studies, the effectiveness of herbal medicine on molluscum contagiosum was significantly high. The most commonly used herbs for oral administration were Isatidis Radix (板藍根), Coicis Semen (薏苡仁), Cyperi Rhizoma (香附子), Equiseti Herba (木賊), Poria (茯?), Lithospermi Radix (紫草), Isatidis Folium (大靑葉) and Lonicerae Flos (金銀花). The most commonly used herbs for external applications were Isatidis Radix (板藍根), Lonicerae Flos (金銀花), Cyperi Rhizoma (香附子), Equiseti Herba (木賊), Dictamni Radicis Cortex (白鮮皮), Isatidis Folium (大靑葉) and Brucea javanica (鴉膽子). Conclusions Based on the results of the clinical studies from China, the use of Korean medicine for treatment of molluscum contagiosum has been shown to be effective in relieving symptoms. Based on the result of this study, it will be possible to widen the scope of Korean medicine on infectious disease, such as molluscum contagiosum. Additional clinical studies and experimental studies need to be performed to solidify these findings.

Effects on hematology and blood biochemistry profile of intramuscular meloxicam injection in Brahminy kite and Barn owl

  • Ratiwan Sitdhibutr;Raveewan Ploypan;Sirawit Subaneg;Chaiyan Kasorndorkbua
    • Journal of Veterinary Science
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    • v.24 no.3
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    • pp.43.1-43.8
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    • 2023
  • Background: Meloxicam is used widely for exotic animal analgesia, but its toxicity in common raptor species in Thailand is unclear. Objectives: This study evaluated the single-dose effect of intramuscular meloxicam in common raptor species in Thailand for short-term and long-term periods. Methods: Twenty-two raptors were administered a single 1 mg/kg dose of meloxicam individually via intramuscular injection. The following were evaluated: clinical appearance, body weight, body condition score, body temperature, fecal appearance, complete blood cell count, and biochemistry panel before (day 0) and after the injection (1, 7, and 30 days). The collected samples were categorized into three groups: Brahminy kite (Haliastur indus) (n = 10), adult Barn owl (Tyto javanica) (n = 4), and juvenile Barn owl (n = 8). Results: None of the raptors in the study groups showed any abnormalities. The hematological profiles were significantly different in the short-term period (day 1 and day 7). The creatinine, aspartate aminotransferase, and creatinine kinase increased in several groups. On the other hand, the packed cell volume decreased in the Brahminy kite and juvenile Barn owl groups. According to the findings, an intramuscular injection of 1 mg/kg meloxicam affected the blood biochemistry panel of the muscle, but the affected raptors recovered within one week. Conclusions: An intramuscular injection of meloxicam at a single 1 mg/kg dose in Brahminy kites and Barn owls was not associated with the morbidity, hepatotoxicity, gastrointestinal toxicity, and nephrotoxicity in the short- and long-term periods.