• Title/Summary/Keyword: ramie

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Diversity of Arbuscular Mycorrhizal Fungi Associated with a Sb Accumulator Plant, Ramie (Boehmeria nivea), in an Active Sb Mining

  • Wei, Yuan;Chen, ZhiPeng;Wu, FengChang;Li, JiNing;ShangGuan, YuXian;Li, FaSheng;Zeng, Qing Ru;Hou, Hong
    • Journal of Microbiology and Biotechnology
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    • v.25 no.8
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    • pp.1205-1215
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    • 2015
  • Arbuscular mycorrhizal fungi (AMF) have great potential for assisting heavy metal hyperaccumulators in the remediation of contaminated soils. However, little information is available about the symbiosis of AMF associated with an antimony (Sb) accumulator plant under natural conditions. Therefore, the objective of this study was to investigate the colonization and molecular diversity of AMF associated with the Sb accumulator ramie (Boehmeria nivea) growing in Sb-contaminated soils. Four Sb mine spoils and one adjacent reference area were selected from Xikuangshan in southern China. PCR-DGGE was used to analyze the AMF community composition in ramie roots. Morphological identification was also used to analyze the species in the rhizosphere soil of ramie. Results obtained showed that mycorrhizal symbiosis was established successfully even in the most heavily polluted sites. From the unpolluted site Ref to the highest polluted site T4, the spore numbers and AMF diversity increased at first and then decreased. Colonization increased consistently with the increasing Sb concentrations in the soil. A total of 14 species were identified by morphological analysis. From the total number of species, 4 (29%) belonged to Glomus, 2 (14%) belonged to Acaulospora, 2 (14%) belonged to Funneliformis, 1 (7%) belonged to Claroideoglomus, 1 (7%) belonged to Gigaspora, 1 (7%) belonged to Paraglomus, 1 (7%) belonging to Rhizophagus, 1 (7%) belonging to Sclervocystis, and 1 (7%) belonged to Scutellospora. Some AMF sequences were present even in the most polluted site. Morphological identification and phylogenetic analysis both revealed that most species were affiliated with Glomus, suggesting that Glomus was the dominant genus in this AMF community. This study demonstrated that ramie associated with AMF may have great potential for remediation of Sb-contaminated soils.

A Study on the Improvement of Antimicrobial Activity and Crease Resistance of Korean Traditional Hansan Ramie Fabrics (한국 전통한산모시의 항균성 및 방추도 향상에 관한 연구)

  • Kim, Ho Jung;Choi, Jae Hyeok;Kim, Han Do;Park, Cha Cheol
    • Textile Coloration and Finishing
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    • v.6 no.4
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    • pp.1-8
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    • 1994
  • To improve the antimicrobial activity and crease resistance of Korean traditional Hansan ramie fabrics, partially saponified polyethylene(PPS) was used as a softening water repellent agent and 3-(trimethoxysilyl)propyl dimethyl octadecyl ammonium chloride(QAC) as a antimicrobial agent. The antimicrobial activity was effective by treatments of PPS, QAC and PPS/QAC for shake flask test. For the halo test, PPS/QAC showed good antimicrobial activity. It was found that the desirable composition of H$_{2}$O/PPS/QAC is 98/1/1 for improving the antimicrobial activity and crease resistance of the fabrics.

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A Study on Moja of Jilson in Yuan Dynasty (원대 질손복 중 '모자'에 관한 고찰)

  • Choi Kyu-Soon;Bao Ming-Xin
    • Journal of the Korean Society of Costume
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    • v.56 no.2 s.101
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    • pp.125-133
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    • 2006
  • The term Moja(毛子) is the name of Jilson(質孫), the traditional costume of Mongolian own meaning one colour. Mo generally means woolen or worsted fabric, so most scholars also regarded Moja as the same. This paper studied the kind of fabric of Moja by using the way of studying the cultural exchange between ancient Korea and China. This study showed that Moja is ramie instead of woolen or worsted fabric. It also showed that its name was born the long history of the cultural exchanging process between China and Korea. Moja was written as Musi(木絲) or Mosi(沒絲) at China in early period, and changed to Mosi(毛施) in ancient Korean. It was changed to Chinese Maozi in later period.

A Study on the Appearance Characteristics of Selected Fabrics for Ecology Trends (에콜로지 트렌드 소재의 외관 특성에 관한 연구)

  • Lee, Jung-Min;Kim, Jong-Jun;Jeon, Dong-Won
    • Journal of Fashion Business
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    • v.12 no.4
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    • pp.131-142
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    • 2008
  • One of the major fashion trends is the naturalism and ecology-conscious trend. The natural looks required in the trend require somewhat random distribution of yarn linear density, which results in irregular appearance along the yarn. This is a technically challenging work of producing yarns that look natural far from being artificial yet maintaining the intricately aesthetic randomness without causing process disturbances. This study focused on the characteristics of fabrics made of natural cellulosic fibers including hemp, ramie, flax, and polyester fabrics. Image analysis of the fabric samples included area measurement of yarn specimen, FFT and inverse FFT. Measurements of bending resistance, thickness, air permeability, and weight were also implemented to interpret the structural differences.

The Problem of the Conservation of the Paintings on the Silk - Lining paper - (견본회화 보존수리에 있어서의 문제점 - 배접지 -)

  • Park, Chi sun
    • Journal of Conservation Science
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    • v.5 no.2 s.6
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    • pp.57-64
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    • 1996
  • Korean Paintings have been drawn on in the main two types of support material - paper and silk. In these things, silk designates picture silk, that of a specially weaved textile for painting since CHO-SUN dynasty, different such as hemp, ramie have been started to use for support material In addition to picture silk. However the structure of hemp and ramie are so close and progue, They are not proper to express the technique of pigments on the back of the paintings. On the other hand, picture silk is efficacious in pigments on the back of the painting with its interval between the strands and translucent textile. As the result, paintings on the silk has many - sided techniques as compared with painting on the papers therfore various devices in conservation have to be considered to deal with the techniques. In this report the focus is on classifying the method of removing the Lining paper according to the several types of expression technique of paintings on the silk.

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Evaluation of the Fineness of Degummed Bast Fibers

  • Wang, H.M.;Wang, X.
    • Fibers and Polymers
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    • v.5 no.3
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    • pp.171-176
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    • 2004
  • Fiber fineness characteristics are important for yarn production and quality. In this paper, degummed bast fibers such as hemp, flax and ramie have been examined with the Optical Fiber Diameter Analyzer (OFDA100 and OFDA2000) systems for fiber fineness, in comparison with the conventional image analysis and the Wira airflow tester. The correlation between the results from these measurements was analysed. The results indicate that there is a significant linear co-relation between the fiber fineness measurement results obtained from those different systems. In addition, the mean fiber width and its coefficient of variation obtained from the OFDA100 system are smaller than those obtained from the OFDA2000 system, due to the difference in sample preparation methods. The OFDA2000 system can also measure the fiber fineness profile along the bast fiber plants, which can be useful for plant breeding.

A Study on the Discrimination of Angelica Species Roots by Dyeing

  • Seo, Young-Nam
    • Korean Journal of Plant Resources
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    • v.20 no.3
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    • pp.247-250
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    • 2007
  • This study was performed to investigate the discrimination of Angelica gigas, Angelica acutiloba and Angelica sinensis on the treatment of chromaticity and colorfastness. Angelica gigantis root has been used as a Korean traditional medicine for the treatment of woman disease. Natural dyes give us many great benefits, including diversified color, but no pollution. These studies were carried out acetate iron, dichloride copper and alum with a mordant to ramie fabric. The ramie fabric was dyed with Angelica gigas, Angelica acutiloba and Angelica sinensis. The results of experiment showed as follows: In discrimination by dyeing, the colors of Angelica acutiloba and Angelica sinensis were very similar, but that of Angelica gigas was different. There were no differences among colors of materials using non-mordant. But dyeing with iron acetate and copper dichloride were showed dark in Angelica gigas than other angelica species.

Analysis of Physical/Mechanical Properties and Color of Bast Fiber Fabrics Dyed using Rubia akane Nakai

  • Jang, Yoon-Young;Kim, Jong-Jun
    • Journal of Fashion Business
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    • v.13 no.3
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    • pp.86-98
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    • 2009
  • The fashion industry saw the emergence of environment-friendly and natural fabric materials recently. The naturalism trend has established sectors in the textile and fashion industry also. Ramie and hemp have long been favored fabric materials in Korea especially for summer. The hand-related mechanical/physical properties of the fabric specimens were analyzed using a fabric objective measurement system, KES(Kawabata Evaluation System). Subjective evaluation was also implemented based on a series of selected adjectives. Studies on natural dyeing methods are important since the establishment of scientific approach is needed in terms of environment and human safety along with the reproduction of traditional natural dyeing methods. In this study, linen, ramie, hemp, and cotton/polyester/linen union fabric specimens were used for the natural dyeing using Rubia akane Nakai with the mordant of gallnut. ${\Delta}E$ values of dyed fabric specimens, mordanted and dyed once using Rubia akane Nakai, increased significantly compared to those of repeatedly dyed fabric specimens without mordanting.