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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 24, Issue 6 - Dec 2011
Volume 24, Issue 5 - Oct 2011
Volume 24, Issue 4 - Aug 2011
Volume 24, Issue 3 - Jun 2011
Volume 24, Issue 2 - Apr 2011
Volume 24, Issue 1 - Feb 2011
Selecting the target year
Total Phenolics Levels and Antioxidant Properties in Methanol Extracts from Several Vietnamese Wild Plants
Boo, Hee-Ock ; Kim, Tae-Soon ; Koshio, Kaihei ; Shin, Jeoung-Hwa ; Chon, Sang-Uk ;
Korean Journal of Plant Resources, volume 24, issue 6, 2011, Pages 659~665
DOI : 10.7732/kjpr.2011.24.6.659
The aim of this study was to determine total phenolics (TP) content, total flavonoids (TF) level, and antioxidant activity of methanol extracts from leaf parts of 15 Vietnamese wild plants. TP content showed the highest amount in methanol extracts from Altenanthera sessilis (
ppm), and followed by Eclipta prostrata (
ppm) and Cassia tora (
ppm). The highest TF level also was found in A. sessilis (
ppm), followed by E. prostrata, and C. tora, showing similar tendency to TP. Methanol extracts of A. sessilis, E. prostrate and C. tora at 1000 ppm exhibited the highest DPPH radical scavenging activity by 94.5, 92.6 and 92.7%, respectively. The methanol extracts from A. sessilis showed the highest ABTS and nitrite scavenging activities by 97% and 92%, respectively. The highest correlation coefficient (
) was 0.9522 between TP and TF, and followed by 0.8919 between DPPH and ABTS activities. However, polyphenols and antioxidant activities showed low correlation coefficients, ranging from $r^2
Genetic Diversity of Common Reed in Korea Based on Morphological Characteristics and Random Amplified Polymorphic DNA Markers
Chu, Hyo-Sub ; Cho, Won-Kyong ; Rim, Yeong-Gil ; Jo, Yeon-Hwa ; Kim, Jae-Yean ;
Korean Journal of Plant Resources, volume 24, issue 6, 2011, Pages 666~674
DOI : 10.7732/kjpr.2011.24.6.666
To elucidate genetic diversity of common reed in Korea, we collected a total of 674 common reed plants from 27 regions in South Korea. Hierarchical clustering using 7 morphological traits divided the 27 common reed populations into 7 groups. Random amplified polymorphic DNA (RAPD) results identified three distinct groups of common reed. Common reed accessions in group I mostly inhabit coastal areas. Group II includes reeds mostly collected from inland areas. Group III consists of common reed accessions collected from inland and coastal areas, suggesting that this group might contain hybrids. In summary, we suggest that parapatric speciation might be an important factor in the genetic diversity of common reed and geographical speciation of common reed that might be also affected by environmental gradients.
Identification of Genetic Relationships Among Morus alba Genotypes Based on RAPD and ISSR Fingerprinting
Kalpana, Duraisamy ; Cha, Hyo-Jung ; Choi, Tae-Ki ; Lee, Yang-Soo ;
Korean Journal of Plant Resources, volume 24, issue 6, 2011, Pages 675~687
DOI : 10.7732/kjpr.2011.24.6.675
Mulberries have importance in the sericulture industry as food for Bombyx mori, silkworm reared for its silk. Korean Morus alba have many cultivars and, for the protection of these cultivars and for utilization in plant-breeding programs, genetic information and the diversity among cultivars are essential. This study with 14 mulberry genotypes was undertaken using RAPD and ISSR fingerprinting to discover the genetic divergences between cultivars. Polymorphism rate among the cultivars produced by RAPD primer was found to be 64.48% and 66.29% relative to ISSR primer. The genetic relationships among the cultivars were identified using a dendrogram constructed with the UPGMA clustering method. Nei`s method was used to calculate the genetic dissimilarity coefficients between each pair of genotypes, and the highest dissimilarity coefficient of 0.246 was exhibited between Suwon and Hwanggum cultivars. To determine the efficiency of each primer, a polymorphic index was calculated, and the robustness of the dendrogram was checked using cophenetic correlation coefficient. The results of this study can be utilized for the improvement of mulberry varieties in plant-breeding programs.
Sugar, Amino Acid and Fatty Acid Composition in Potato Tubers Grown in Highland Area of Gangwon Province
Hur, On-Sook ; Chang, Dong-Chil ; Kim, Sun-Lim ; Ok, Hyun-Chung ; Kim, Jung-Tae ; Chun, Chang-Hoo ;
Korean Journal of Plant Resources, volume 24, issue 6, 2011, Pages 688~695
DOI : 10.7732/kjpr.2011.24.6.688
The composition of free sugar, free amino acid, and fatty acid in tubers of the cultivars `Superior`, `Sinnamjak`, and `Chubaek` were evaluated at the two sites with different altitude, Gangneung (20 m altitude) as lowland and Daekwallyeong (760 m altitude) as highland. The average reducing sugar content of the three potato cultivars harvested in Daekwallyeong and Gangneung was 1.1% and 2.3%, respectively, which showed two-fold difference between the two locations. Average total sugar content was also two-folds lower in potatoes harvested in Daekwallyeong (6.3%) than those harvested in Gangneung (12.2%). Average content of free amino acids of the three potato cultivars harvested in Daekwallyeong and Gangneung was 1,325 mg/100g and 1,051 mg/100g, respectively. The cultivar `Chubaek` has the highest amino acid content among the three tested cultivars. Potatoes from Daekwallyeong have higher unsaturated fatty acid levels than those from Gangneung. During the tuber development, unsaturated fatty acids levels increased in tubers grown in Daekwallyeong, but decreased in those grown in Gangneung. These results indicate that the quality of potatoes from Daekwallyeong is from Gangneung for food processing purpose for human consumption.
Effects of Mepiquat Chloride and Trinexapac-Ethyl on Oil Composition, Seed Yield and Endogenous Gibberellins in Flax
Kim, Sang-Kuk ; Lee, Hee-Dong ; Choi, Hong-Jib ;
Korean Journal of Plant Resources, volume 24, issue 6, 2011, Pages 696~701
DOI : 10.7732/kjpr.2011.24.6.696
The aim of this field experiment was to investigate the possible effects of mepiquat chloride (TE) and trinexapac-ethyl (MC) on oil composition, seed yield and endogenous gibberellins content of flax cultivar. Foliar application of plant growth retardants mepiquat chloride (0.897, 1.794 and 2.691 kg a.i.
) and trinexapac-ethyl (0.756, 1.512 and 2.668 kg a.i.
) had significantly increased seeds ripening rate and seed yield. In contrast, plant height was decreased by foliar application of MC and TE. The application of MC significantly increased seed oil yield (730 kg
by 27.0%) compared to the control. Seed and oil yield, and unsaturated fatty acids (oleic acid, linoleic acid and linolenic acid) were increased by foliar application of MC.
Analysis of Genetic Diversity and Population Structure of Buckwheat (Fagopyrum esculentum Moench) Landraces of Korea Using SSR Markers
Song, Jae-Young ; Lee, Gi-An ; Yoon, Mun-Sup ; Ma, Kyung-Ho ; Choi, Yu-Mi ; Lee, Jung-Ro ; Jung, Yeon-Ju ; Park, Hong-Jae ; Kim, Chung-Kon ; Lee, Myung-Chul ;
Korean Journal of Plant Resources, volume 24, issue 6, 2011, Pages 702~711
DOI : 10.7732/kjpr.2011.24.6.702
Buckwheat (Fagopyrum esculentum Moench), one of the minor crops grown in Korea belonging to the Polygonaceae family, is an annual crop widely cultivated in Asia, Europe, and America and has a character of outcrossing and self-incompatibility. The objective of this study was to analyze the genetic variability, phylogenetic relationships and population structure of buckwheat landraces of Korea using SSR markers. Ten microsatellite markers have been detected from a total of 79 alleles among the 179 buckwheat accessions were collected from Korea. The number of allele per marker locus (
) ranged from 2 (GB-FE-001, GB-FE-043 and GB-FE-055) to 31 (GB-FE-035) with an average of 7.9 alleles. GB-FE-035 was the most polymorphic with the highest PIC value 0.93. Major allele frequencies (
) for the 10 polymorphic loci varied from 0.12 to 0.97 with a mean allele frequency of 0.57. The expected heterozygosity (
) values ranged from 0.05 to 0.94 with an average of 0.53. The observed heterozygosity (
) ranged from 0.06 to 0.92 with an average of 0.42. The overall polymorphic information contents (PIC) values ranged from 0.05 to 0.93 with an average of 0.48. The landrace accessions of buckwheat used in the present study were not distinctly grouped according to geographic distribution. The study concludes that the results revealed genetic differentiation was low according to the geographic region because of outcrossing and self-incompatibility. We reported that our analyses on the genetic diversity of common buckwheat cultivars of Korea were performed by using of microsatellite markers.
Bioconversion of Ginsenoside Rb1 to Compound K using Leuconostoc lactis DC201
Piao, Jin-Ying ; Kim, Yeon-Ju ; Quan, Lin-Hu ; Yang, Dong-Uk ; Min, Jin-Woo ; Son, Seon-Heui ; Kim, Sang-Mok ; Yang, Deok-Chun ;
Korean Journal of Plant Resources, volume 24, issue 6, 2011, Pages 712~718
DOI : 10.7732/kjpr.2011.24.6.712
Ginseng (Panax ginseng) is frequently used in Asian countries as a traditional medicine. The major components of ginseng are ginsenosides. Among these, ginsenoside compound K has been reported to prevent the formation of malignancy and metastasis of cancer by blocking the formation of tumor and suppressing the invasion of cancer cells. In this study, ginsenoside
was converted into compound K, via secreted
-glucosidase enzyme from the Leuconostoc lactis DC201 isolated, which was extracted from Kimchi. The strain DC201 was suspended and cultured in MRS broth at
. Subsequently, the residue from the cultured broth supernatant was precipitated with EtOH and then dissolved in 20 mM sodium phosphate buffer (pH 6.0) to obtain an enzyme liquid. Meanwhile, the crude enzyme solution was mixed with ginsenoside
at a ratio of 1:4 (v/v).The reaction was carried out at
and 190 rpm for 72 hours, and then analyzed by TLC and HPLC. The result showed that ginsenoside Rb1 was transformed into compound K after 72 hours post reaction.
Study on Antimicrobial Activity of Extracts from Fritillaria unibracteata Hsiao et K.C. Hsia and F. ussuriensis Maxim.
Moon, Jung-Wook ; Chen-Zhi, Chen-Zhi ; Song, Won-Seob ; Baek, Seung-Hwa ;
Korean Journal of Plant Resources, volume 24, issue 6, 2011, Pages 719~723
DOI : 10.7732/kjpr.2011.24.6.719
Antimicrobial activities of methanol, ethanol, water, and
extracts from Fritillaria unibracteata Hsiao et K.C. Hsia and F. ussuriensis Maxim. were investigated by disk-agar diffusion method. The result showed comparatively strong antimicrobial activity against several microorganisms. The extracts from F. unibracteata and F. ussuriensis dosedependently increased the activity. However, water and
extracts showed no antimicrobial activity against 7 microorganisms. Especially, against the most sensitive microorganism Staphylococcus epidermidis, methanol extracts at highest concentration of 20 mg/mL exhibited the largest clear zone on plate by 6-12 mm and ethanol extracts on plate by 6-10 mm.
Effect of Temperature, Deep Sea Water and Seed Quality on Growth of Buckwheat Sprouts
Xoxiong, Briatia ; Chang, Kwang-Jin ; Ahn, Chul-Hyun ; Lim, Yong-Sub ; Kim, Yeon-Bok ; Park, Sang-Un ; Park, Byoung-Jae ; Sung, In-Je ; Park, Cheol-Ho ;
Korean Journal of Plant Resources, volume 24, issue 6, 2011, Pages 724~728
DOI : 10.7732/kjpr.2011.24.6.724
With both common and Tartary buckwheat species, this study was aimed at producing new commercially useful bio-materials with higher nutritional and medicinal value due to higher components for health promotion and diseases care. In common buckwheat sprouts, it was found that root length at
was longer (5.93 cm) than at 25 and
, whereas the hypocotyls length, fresh weight of each sprout, and whole fresh weight showed the highest value at
. For Tartary buckwheat, the root length, hypocotyl length and fresh weight of each sprout and whole fresh weight were also the highest at
. Common buckwheat (Suwon No.1) and Tartary buckwheat (KW45) sprouts cultured at
showed that hypocotyl length, fresh weight of each sprout, and whole fresh weight in the control were higher than those sprouts treated with 5% and 10% deep sea water (DSW), while the sprouts cultured at
showed were significantly longer hypocotyls than the control or 5% DSW treatment.
Antitussive Effect of Fritillaria unibracteata Hsiao et K. C. Hsia
Moon, Jung-Wook ; Chen-Zhi, Chen-Zhi ; Song, Won-Seob ;
Korean Journal of Plant Resources, volume 24, issue 6, 2011, Pages 729~732
DOI : 10.7732/kjpr.2011.24.6.729
This experiment was conducted to clarify the antitussive effect of Fritillaria unibracteata Hsiao et K. C. Hsia. The antitussive effect in ethanol (75, 50, 30%) extracts from F. unibracteata was relatively high. The ethanol extracts of 20, 40 mg/kg concentrations were especially good antitussive effect. The ethanol extracts of F. unibracteata showed lower antitussive activities of 20~30% than sodium chloride injection used as a blank space control.
A Study on the Current Status of Mountain-Grown Ginseng
Im, Byung-Ok ;
Korean Journal of Plant Resources, volume 24, issue 6, 2011, Pages 733~740
DOI : 10.7732/kjpr.2011.24.6.733
For the current study, 2,000 questionnaire sheets were printed and distributed while at the same time postal questionnaires were also conducted. The questionnaire survey was conducted July 25 through September 25, 2008, whereby 206 copies of desirable responses were secured. Analysis of the survey made it possible to grasp the overall current status and prospects of the mountain-grown ginseng business, and the level of technology required for cultivating mountaingrown ginsengs. It was learned that, with no legal and institutional arrangements now in force, no precise facts and figures concerning the total area cultivated and the quantity produced are currently available, and that the products are being marketed under the table. Under such circumstances, it is high time for the mountain-grown ginseng cultivation business to contribute to the promotion of incomes of the farming households and the generation of national wealth by developing the business into a systematic industry. This study conducted a survey on the current status of mountain-grown ginseng producers and of their production, thereby contributing to the introduction of policies for mountain-grown ginsengs.