This study sought to provide basic data to understand the relationship between autonomy and appearance management behavior by examining the impact of autonomy on the appearance management behavior of soldiers living in military. Accordingly, this study conducted a survey and analyzed the collected data using SPSS v. 25.0 statistical soft ware including frequency analysis, exploratory factor analysis, descriptive statistical analysis, correlation analysis, and multiple regression analysis. As a result of the study, it was confirmed that clothing management, plastic surgery management, skin care behavior, and weight management behavior increased depending on the autonomy factors of military barrack life. Therefore, we aim to provide basic data to understand the generation of active-duty soldiers enlisting in the military by identifying the appearance preference factors of soldiers of the MZ generation according to the factors of autonomy in the military and increasing their appearance management behavior.
A positional scanning synthetic peptide combinatorial library (PS-SCL) was screened in order to identify antimicrobial peptides against the cariogenic oral bacteria, Streptococcus mutans. Activity against Streptococcus gordonii and Aggregatibacter actinomycetemcomitans was also examined. The library was comprised of six sub-libraries with the format O(1-6)XXXXX-NH2, where O represents one of 19 amino acids (excluding cysteine) and X represents equimolar mixture of these. Each sub-library was tested for antimicrobial activity against S. mutans and evaluated for antimicrobial activity against S. gordonii and A. actinomycetemcomitans. The effect of peptides was observed using transmission electron microscopy (TEM). Two semi-mixture peptides, RXXXXN-NH2 (pep-1) and WXXXXN-NH2 (pep-2), and one positioned peptide, RRRWRN-NH2 (pep-3), were identified. Pep-1 and pep-2 showed significant antimicrobial activity against Gram positive bacteria (S. mutans and S. gordonii), but not against Gram negative bacteria (A. actinomycetemcomitans). However, pep-3 showed very low antimicrobial activity against all three bacteria. Pep-3 did not form an amphiphilic α-helix, which is a required structure for most antimicrobial peptides. Pep-1 and pep-2 were able to disrupt the membrane of S. mutans. Small libraries of biochemically-constrained peptides can be used to generate antimicrobial peptides against S. mutans and other oral microbes. Peptides derived from such libraries may be candidate antimicrobial agents for the treatment of oral microorganisms.
Platycodon grandiflorum (Bell flower) is an important plant that has traditionally been used as herbal medicine for the treatment of cough, phlegm, sore throats, lung abscesses, chest pains, dysuria, and dysentery. The present study was initiated to investigate the feasibility of inducing shoot and root organogenesis in cultured explants of P. grandiflorum in a range of culture media and through use of various plant growth regulators (PGRs). The plantlets (Stem containing one node) were isolated and cultured on different concentrations of Murashige and Skoog (MS) medium supplemented with PGRs. We found that proliferation and elongation of shoots and roots could be achieved on ¼ MS for P. grandiflorum with wild and green petals and on ⅛ MS for P. grandiflorum with double petals. The highest levels of development and elongation of adventitious shoots and roots were observed when petal explants were cultured on ¼ MS (pH 3.8) supplemented with 5% sucrose. Increasing the agar concentration reduced shoot growth and rooting potential; nevertheless, the highest number of shoots and roots was observed on 0.6% agar. In the case of growth regulators, ¼ MS supplemented with 1 mg L-1 6-benzylaminopurine (BA) was found to be best for shooting, although higher concentrations of BA tended to reduce shoot and root elongation. The highest number of shoots was achieved on 0.5 mg ․ L-1 thidiazuron (TDZ) from double petal explants grown on ⅛ MS. However, root and shoot elongation were found to decrease when TDZ concentrations were increased. Low concentrations of kinetin, naphthalene acetic acid, indole acetic acid, and 3-indole butyric acid induced shoot and root proliferation and elongation. Taken together, our study showed that low concentrations of PGRs induced the greatest root formation and elongation, showing that the optimal concentration of PGRs for shoot proliferation was species-dependent.
Background : The roots of Codonopsis lanceolata have been used as a tonic crude drug and an edible plant in Korea. The plant mainly contains triterpenoid saponins, including codonolaside, codonolasideⅠ-Ⅴ, lancemaside A-G. Their saponins have shown anti-inflammatory effects such as bronchitis and cough, insomnia and hypomnesia. C. lanceolata is well known to affect various pharmacological effects for human health, and its consumption is increasing. Recently, plant and plant-derived products were treated a part of the healthcare system by applying the bioactive phytochemicals. Antioxidant and immune activity substances in food play an important role as a health-protecting factor. This study was designed to investigate the in vitro immune cell growth and xanthine oxidase Inhibitory activity of different storage period and storage temperature of C. lanceolata. Methods and Results : The plant materials were used the roots of C. lanceolata cultivated in Jeju area, Korea. Immune enhancing effect was conducted using T cell and B cell of human immune cells. Each cell incubated for 8 days with the sample extracts compared to the control group, and the immune activation was measured according to the growth of immune cells. The xanthine oxidase Inhibitory activity was measured by modifying the method of Noro(1983). In different storage period and storage temperature conditions, the immune cell growth of C. lanceolata extract promoted a concentration-dependent manner in both human T cell and B cell, and did not show a significant difference. The xanthine oxidase Inhibitory activity of C. lanceolata extract tended to decrease more, depending on the longer the storage period or the higher the storage temperature. Conclusion : These results of this study suggested that the root of C. lanceolata may assist in the potential biological activities, and can be used as a source of human health products.
Background : This study was conducted to developed the propagation method by cutting for mass cultivation of Vitex roundifolia. We were pitched the cutting two times and treated plant growth regulators to enhance the rooting percentage. Vitex roundifolia is live in beach sandy soil south of Hwanghae-Do and Gangwon-Do. Vitex roundifolia have been used to bath foam. It is good for aromatic plant. It has 0.8% essential oil content in leaf and flower. Major components of essential oil were alpha-Pinene, Sabinene, beta-Pinen, 1,8-cineole, d-Limone. Despite the superior usability, it had not yet been made by the artificial cultivation Methods and Results : We were pitched the cutting of a first-year branch on June 5, which was greenwood cutting and July 17, which was semi-hardwood cutting at Kwangseung-ri beach, Gochanggun, Jeonbuk. The length of cutting was 10cm. It had 3~4 nodes, we stuck a cutting remain 2 nodes above ground on ordinary raise seedling soil. Rooting percentage was measured at 60 days after stuck a cutting. Rooting percentage was higher greenwoody cutting(95%) than semi-hardwood cutting(57.6%). In green wood cutting, there was no significance with plant growth, but chemical injury was occurred in IBA 5,000ppm. In semi-hardwood cutting, there was significance with plant growth regulators. The rooting percentages of all the treat were higher than control(no treatment). Rooting percentage was the highest in NAA 5,000ppm treated. Conclusion : Greenwood cutting method was more proper to propagation for Vitex roundifolia than semi-hardwood cutting. The optimum time to cutting for Vitex roundifolia propagation was the early in June. If miss a time to propagation Rooting percent was elevated by plant growth regulator.
Background : This experiment was conducted to find the right degree of shading to reduce summer months when the death Allium hookeri cultivation in the southern highland in Korea. This experiment was conducted at an altitude of 500m, Jeonbuk Namwon unbong plateau region The soil was tested in phosphatic content was slightly higher so 671 ㎎/㎏ than regular soil. Every soil testing was conducted in sandy soil with good water. The test day highs at 50% shading plots of shading in this period about 6.1℃ lower than the non-shading. The soil temperature is lowered to 1.9℃ at 50% shading plots compared with the non-shading. As a result, Allium hookeri underground quantities produced per 1,682 ㎏ 10a in 50% shading plots. This was a 35% increase compared to the non-shading plots. Allium hookeri is native to the Alpine 4,200m from 1,400m above sea level, near the Himalaya Mountains. Myanmar is known as the National vegetables. Allium hookeri is Allium plants. It flies three flavors, including sweet, spicy, bitter taste. Allium hookeri roots are similar to ginseng roots called as 'three vegetable' This is a randomly named. The in Korea was first introduced in 2006. By 2015, the country has been found to 190㏊, Jeonbuk 35㏊ (18.3%) is growing. Therefore, this study was conducted to introduce the cultivation of plants in the southern highland in Korea. Methods and Results : In order to use this experimental Allium hookeri seedlings were planted in Jeonbuk Sunchang after buying. Allium hookeri cultivation methods put the 3∼4 one eye on the roots. Planting the root length was cut to leave a 3∼5㎝. The planting distance was 40×20㎝. The shielding 35, two months were 50 and 75% by July 1, August 31. The air temperature, soil temperature were investigated in accordance with the changes of light in this experiment. And examined the withering rate, brightness, growth conditions, such as Yield. Conclusion : Test results were as follows. Allium hookeri roots emerged on March 2 during planting 43-68 days. Allium hookeri after shading shoot growth characteristics were as follows. 35% shading and 50% shading was a tendency for the number of leaves increased compared to the non-shading. As a result, flooding was 35% as compared to production per 10a 1,682 ㎏ no light shielding at 50%. Plant analysis leaf mineral contents tended increased nitrogen, phosphate, gallium compared to the non-light cultivation. Mineral contents of the root was nitrogen, potassium is higher in comparison with 75% shading no shading.
This study was performed to investigate the growth characteristics and inorganic components of Codonopsis lanceolata regarding regional differences. The plant height of Japanese Codonopsis lanceolata was 373.6 cm, so it’s revealed that it has more vigorous growth than Korean won. The flowering time of Korean Codonopsis lanceolata was 2 weeks faster than Japanese one. Total fresh weight of root was 41.0 g and 39.0 g for Korean and Japanese respectively, thus, no significance difference was found. However, regarding fresh weight, Korean one had a more fresh weight (35.4 g) of main root parts, but Japanese one had a more fresh weight (9.6 g) of the lateral root part. Each inorganic component was found more in the aboveground parts, regardless of the region and the content of K was the largest. Regarding the content of macroelements for each part of Codonopsis lanceolata, the content of Na, Mg, P, S, and Ca in Korean Codonopsis lanceolata was found the highest on the leaf, followed by stem and root. In the case of Japanese Codonopsis lanceolata, same result was found on the content of Mg and Ca, however, the highest content of Na and P was found in the stem.
This study was conducted to compare the growth, inorganic components, and proximate components of Codonopsis lanceolata grown in 10 regions of Korea for selecting superior species and breeding by crossing. Among the all tested lines, the shortest plant height (217.12 cm) was observed from the Ulleungdo region line (No. 4) while the longest (273.9 cm) was observed from Hwasun region line (No. 9). In addition, the lines of central and northern region (No. 1~No. 7) tend to have shorter plant height than those of southern region (No. 8~No. 9) except Jejudo region line (No. 10). Flowering tends to be late towards southern region, and lines in central and northern regions were started flowering about 2 weeks earlier than those in southern regions. However, the heaviest root weight was 13.1 g, found in only Jejudo line (No. 10) whereas there was no significant difference found in the other regions which have a range of 8.3~11.0 g. The inorganic components were varied in each line, however, proportion of macroelements, such as K, Ca, and P, was the largest for every line. Especially for Heongseong region line (No. 2), had larger proportion of macroelements than the others. There was a difference of proximate compositions of Codonopsis lanceolata, except the moisture content, among all regions, however, it was generally shown that the content of crude protein (1.31~3.76%) and crude fiber (2.18~3.12%) was the highest.
A new waxy corn hybrid ‘Daedukchal 1’ was developed from single cross between CNU 504 and CNU 2396 at Chungnam National University in 2007. Inbred CNU 504 used as a seed parent and inbred CNU 2396 as a pollen parent were collected throughout domestic regions. Tasseling date of this hybrid was seven days later than that of check hybrid, ‘Chalok 1’. ‘Daedukchal 1’ was 19.7 cm in ear length and 4.5 cm in ear diameter. On yield trial, ear length of this hybrid was increased 29.7% compared with a check hybrid, ‘Chalok 1’. ‘Daedukchal 1’ had white kernels and good eating quality due to high sugar content and thinner pericarp. The ratio of kernel set length/ear length was similar to ‘Chalok 1’. It is moderately resistant to southern leaf blight and northern leaf blight but susceptible to corn borer. The yields of ‘Daedukchal 1’ in fresh ear weight and in number of fresh ear were 16% and 8%, respectively, higher than those of a check hybrid in regional yield trials for two years. Seed production for this hybrid was better because of the consistency of tasseling dates.
A new yellow waxy corn hybrid "Daehakchal Gold 1" was developed from single cross between Yeongdeok Jaera and Okchen Jaera at Chungnam National University in 2007. Inbred CNU57 derived from Yeongdeok Jaera was used as the seed parent of Daehakchal Gold 1, and inbred CNU 27 derived from Okchen Jaera as the pollen parent. Tasseling date of this hybrid was seven day later than that of check hybrid, Chalok 1. Daehakchal Gold 1 was 19.7cm in ear length and 4.5cm in ear diameter. The yield of Daehakchal Gold 1 and check hybrid in dry matter were 146.5g and 113.9g per plant, respectively. On yield trial, which were increased 29.7% compared with a check hybrid, Chalok 1. Especially, Daehakchal Gold 1 had yellow kernels and good eating quality. The ratio of kernel set length/ear length was similar to Chalok 1. It is moderately resistant to Bioporalis maydis and corn borer. The yields of Daehakchal Gold 1 in fresh ear weight and in number of fresh ear were 16% and 8%, respectively, higher than those of a check hybrid in regional yield trials for three years. Seed production of this hybrid has gone well due to good match during crossing between seed and pollen parents.