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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Plant Resources
Journal Basic Information
Journal DOI :
The Plant Resources Society of Korea
Editor in Chief :
Volume & Issues
Volume 23, Issue 6 - Dec 2010
Volume 23, Issue 5 - Oct 2010
Volume 23, Issue 4 - Aug 2010
Volume 23, Issue 3 - Jun 2010
Volume 23, Issue 2 - Apr 2010
Volume 23, Issue 1 - Feb 2010
Selecting the target year
Antioxidant Activities of Various Extracts of Hovenia dulcis Thunb Fruits
Hu, Weicheng ; Lee, Kab-Yeon ; Wang, Myeong-Hyeon ;
Korean Journal of Plant Resources, volume 23, issue 3, 2010, Pages 207~213
Hovenia dulcis Thunb fruits were successively extracted with hot water, water, methanol, ethyl acetate, and chloroform. The crude extracts were investigated for potential antioxidant by measuring scavenging against DPPH free radicals, reducing power, superoxide radicals, and protection of protein damage and cultured cells from a lethal dose of hydrogen peroxide (
). In all chemical assays used, the hot water extract of H. dulcis fruits, which contained
(Tannic acid mg/g extract, n=3) of total phenolic compounds contents exhibited highest activity in in vitro models of DPPH free radical scavenging activity, reducing power assay, superoxide radical scavenging activity and protection of protein damage. In addition, the hot water extract protected cultured RAW 264.7 macrophages from a lethal dose of
and reduced reactive oxygen species level in RAW 264.7 cells.
Studies on Genetic Diversity of Buckwheat Germplasms
Gao, Xiu-Dong ; Kim, Jae-Hak ; Park, Cheol-Ho ; Hong, Soon-Kwan ;
Korean Journal of Plant Resources, volume 23, issue 3, 2010, Pages 214~222
Many research results have indicated that many kinds of useful ingredients are rich in buckwheat, which have high nutritional values and medicinal properties, so, buckwheat has been cultivated around Asia and Europe. In this paper, genetic diversity of common and tartary buckwheat germplasms were studied based on morphological and molecular markers in order to provide useful information for conservation and utilization of buckwheat genetic resources. The length, width, thick, value and weight of the seed of the common and tartary buckwheat were measured and analyzed by the statistics methods. The result has shown that there are morphological variation both in common buckwheat and tartary buckwheat seeds collected from different regions. It also has shown that the morphological variation of tartary seeds was significantly correlated to geographical regions. The nuclear ribosomal internal transcribed spacers (ITS) of the tartary buckwheat collected from different countries were cloned, sequenced and statistically analyzed. The data showed that ITS sequences were informative to analyze the phylogeny of the tartary buckwheat and the data also showed that the genetic distances varied among different tartary buckwheat seeds collected from different countries.
Fruit Characteristics and Variation of Phenolic Compounds in the Fruit of Hawthorn (Crataegus pinnatifida Bunge) Selected from Korea and Chinese Cultivars
Park, Young-Ki ; Hwang, Suk-In ; Lee, Moon-Ho ; Jang, Yong-Seok ;
Korean Journal of Plant Resources, volume 23, issue 3, 2010, Pages 223~227
In order to select superior tree from Korea, five major phenolic compounds including (-)-epicatechin(EC), chlorogenic acid (ChA), hyperoside (HP), isoquercitrin (IQ), and procyanidin B2 (PC-
) in hawthorn fruit were evaluated. We also compared these hawthorn fruits of five clones with Chinese hawthorn cultivars. HPLC with a diode-array detector was used to determine the contents of the individual compounds. Hawthorn fruits of five clones (selected from different area of Korea), and four Chinese hawthorn cultivars grown in the Korea Forest Research Institute (Suwon) were utilized. With their high functional components, Jungsun is the clone including the highest contents of EC (11.26 mg/g) and PC-
(24.46 mg/g). The clone of Chuncheon 15 had highest HP (0.53 mg/g) and IQ (0.41 mg/g). From the results, the clone of Jungsun and Chuncheon 15 can be evaluated to be selected breeding material for cultivar development.
Effect of Girdling on the Fruit Quality and Harvest Date of the 'Shigyoku' Grapes
Lee, Seok-Ho ; Lee, Jae-Wung ; Kim, Hyun-Ju ; Kim, Young-Ho ; Lee, Ki-Yeol ; Shin, Un-Dong ; Kim, Hag-Hyun ;
Korean Journal of Plant Resources, volume 23, issue 3, 2010, Pages 228~232
The present study was carried out to elucidate the effect of girdling on the quality and harvest date of the 'Shigyoku' grapes. Among girdled vines, the interval from full bloom to harvest date was 77 days; this was as much as seven days shorter in vines receiving a 20% girdling treatment. With regards to fruit characteristics, significant differences were observed in cluster length, berry number, and berry weight in vines that received girdling treatments. There were also significant differences in cluster weight; 468.2 g, 491.6 g and 504.9 g in the control group, 10% girdling group, and 20% girdling group, respectively. Thus, the use of girdling treatments is an effective approach to increasing cluster weight by 5% in the 10% girdling treatment and 8% in the 20% girdling treatment. The 10% girdling treatment showed significant difference in terms of titrable acidity; in fact, the overall titrable acidity was relatively high among all the girdling treatments. The concentration of anthocyanin increased in 20% girdling treatment, but there were no significant differences in anthocyanin concentration among girdling treatments. Berry color developed rapidly in vines that received girdling treatment.
Development of a Reliable Technique to Eliminate Sweet potato leaf curl virus through Meristem Tip Culture Combined with Therapy of Infected Ipomoea Species
Cheong, Eun-Ju ; Hurtt, Suzanne ; Salih, Sarbagh ; Li, Ruhui ;
Korean Journal of Plant Resources, volume 23, issue 3, 2010, Pages 233~241
In vitro elimination of Sweet potato leaf curl virus (SPLCV) from infected sweet potato is difficult due to low number of virus-free plants obtained from meristem tip culture and long growth period required for the virus detection. In this study, efficient production of the SPLCV-free sweet potato by in vitro therapy coupled with a PCR assay for virus detection was investigated. Infected shoots cultured on Murashige and Skoog medium were treated at three different temperatures for 7 weeks followed by meristem tip culture on the medium with or without ribavirin at 50 mg/L. The regenerated plantlets were tested for virus infection by a PCR assay. The results showed that the both heat- and cold-treatments, and addition of the ribavirin did not have significant effect on efficiency of the virus elimination. The meristem size, however, greatly affected the survival rate. Meristems sized over 0.4 mm survived better than smaller ones (0.2-0.3 mm). The PCR assay was approved to be a rapid, sensitive and reliable for the SPLCV detection in regenerated plantlets. Therefore, combination of cultivating meristem tips sized 0.4-0.5 mm on the medium at
without ribavirin and detection of SPLCV in the regenerated plantlets by the PCR assay was an efficient system for the SPLCV elimination from infected sweet potato.
Effects of Mulching Materials on Growth of Allium tuberosum Rottler and Weed Control
Kim, Jin-Han ;
Korean Journal of Plant Resources, volume 23, issue 3, 2010, Pages 242~247
This study was carried out to elucidate the effect of mulching materials on the growth of Chinese chive (Allium tuberusum Rottler) and weed control. Chinese chive was grown under five mulching materials, pine leaf, oak leaf, rice straw, rice hull and sawdust, at the Experimental Farm of Chungbuk National University from June 20, 2009 to September 30, 2009. Amaranthus mangostunus, Digitaria sanguinalis, Portuclaca. oleracea, Echinochioa crus-galli var. frumetacea and Setaria viridis were dominant weeds. Both pine and oak leaves were significantly effective mulching materials in terms of weed control indices in both nursery and field. Soil moisture contents were 1.2~3.7% higher in mulching, especially in oak leaf mulching. Mulching with pine leaf significantly increased plant height, sheath length, leaf length, bulb-, root- and leaf-weights and yield of Chinese chive, but there were no significant differences among the other mulching materials although better than those in non-mulching.
Galactinol is Involved in Induced Systemic Resistance against Bacterial Infection and Environmental Stresses
Cho, Song-Mi ; Kim, Su-Hyun ; Kim, Young-Cheol ; Yang, Kwang-Yeol ; Kim, Kwang-Sang ; Choi, Yong-Soo ; Cho, Baik-Ho ;
Korean Journal of Plant Resources, volume 23, issue 3, 2010, Pages 248~255
We previously demonstrated that root colonization of the rhizobacterium, Pseudomonas chlororaphis O6, induced expression of a galactinol synthase gene (CsGolS1), and resulting galactinol conferred induced systemic resistance (ISR) against fungal and bacterial pathogens in cucumber leaves. To examine the role of galactinol on ISR, drought or high salt stress, we obtained T-DNA insertion Arabidopsis mutants at the AtGolS1 gene, an ortholog of the CsGolS1 gene. The T-DNA insertion mutant compromised resistance induced by the O6 colonization against Erwinia carotovora. Pharmaceutical application of 0.5 - 5 mM galactinol on roots was sufficient to elicit ISR in wild-type Arabidopsis against infection with E. carotovora. The involvement of jasmonic acid (JA) signaling on the ISR was validated to detect increased expression of the indicator gene PDF1.2. The T-DNA insertion mutant also compromised tolerance by increasing galactinol content in the O6-colonized plant against drought or high salt stresses. Taken together, our results indicate that primed expression of the galactinol synthase gene AtGolS1in the O6-colonized plants can play a critical role in the ISR against infection with E. carotovora, and in the tolerance to drought or high salt stresses.
A Floristic Study of Carpathian Natural Protected Area in Ukraine
Kim, Hyuk-Jin ; Kim, Dong-Kap ; Choi, Kyoung ; Park, Kwang-Woo ; Kim, Joo-Hwan ;
Korean Journal of Plant Resources, volume 23, issue 3, 2010, Pages 256~260
We performed the floristic study of Carpathian mountains in Ukraine from April 2008 till October 2009. We designated eight important areas to investigate in Ukraine Carpathians including Svydovets, Chornohora, Kuziy-Trybushany, Maramorosh, Uholka-Shyrokyi Luh, Narcissi Valley, Chorna Hora, and Yulivska Hora. The total numbers of vascular plants in investigated area were 1,349 speices from 502 genera and 112 families. The endemic species to Carpathians numbered to 65 from 49 genera belonging to 24 families, and it was corresponded to 4.8% of the 1,349 vascular species. We prepared the list of vascular plants with compiling database on useful plants. Ukraine Carpathians endemic species could be applied as high value products in research and practice. Moreover, the flora of Carpathian mountains which is distributed in five nations in eastern Europe and famous for Primeval Beech Forests (Fagus sylvatica), is useful to compare the floristic study with Korean flora.