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Study on the Chemical Components and Fiber Morphology of Phloem of Some Thymelaeacea Plants
Received:November 09, 2022  
DOI:10.11981/j.issn.1000-6842.2023.02.86
Key Words:Thymelaeaceae;Wikstroemia monnula;handmade paper;fiber morphology;chemical component
Fund Project:甘肃省高等学校青年博士基金(2022QB-153);甘肃省科技重点研发计划项目“河西走廊中药材病虫害绿色防控关键技术研究”(18YF1NG086)。
Author NameAffiliationPostcode
ZHANG Chaoqiang* College of Life Science and Engineering, Hexi University, Zhangye, Gansu Province, 734000
Ministry of Education Key Lab for Biodiversity Science and Ecological Engineering, Institute of Biodiversity Science, Fudan University, Shanghai, 200438
Hexi Corridor Advantage Biomass Resources Transformation and Utilization Technology Center, Zhangye, Gansu Province, 734000 
734000
ZHAO Canxing Sichuan Institute of Atomic Energy, Chengdu, Sichuan Province, 610100
College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037 
210037
HAO Bingrui College of Life Science and Engineering, Hexi University, Zhangye, Gansu Province, 734000 734000
LEI Yuming College of Agriculture and Ecological Engineering, Hexi University, Zhangye, Gansu Province, 734000 734000
ZHANG Wenju Ministry of Education Key Lab for Biodiversity Science and Ecological Engineering, Institute of Biodiversity Science, Fudan University, Shanghai, 200438 200438
TONG Guolin* College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, Jiangsu Province, 210037 210037
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Abstract:
      To assess the fiber quality of various Thymelaeaceae plants, the chemical components, fiber morphology, and cell wall ultrastructure of 2~3-year-old phloem or root bark fibers of Wikstroemia monnulaW. indicaW. pilosaW. nutans, and Stellera chamaejasme collected from different regions were investigated. The results showed that holocellulose content of W. monnula (64.25%~72.31%), W. nutans (71.33%), W. pilosa (65.6%), and S. chamaejasme (59.04%) from different regions was significantly higher or comparable, compared with the traditional high-quality handmade paper raw materials—bark fiber of Pteroceltis tatarinowii (61.43%) and Broussonetia papyrifera (67.50%), while the lignin content was lower. The fiber length of W. monnula from Rongshui was the longest (5.51 mm), followed by Suichang (5.40 mm), Zhaoqing (5.09 mm), and S. chamaejasme (5.05 mm), whereas the fiber length of W. monnula from Maoming was the shortest (3.09 mm). The fiber length-to-width ratios for W. monnula from Rongshui and Zhaoqing were 565.2 and 538.4, respectively. The ultrastructural analysis indicated that the cell walls of phloem fibers of W. monnula from Chengbu, Rongshui, Suichang, Zhaoqing, and W. pilosa were thinner, whereas those of W. monnula from Maoming, W. nutans and W. indica from Zhaoqing, and S. chamaejasme were thicker.
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