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| Study on the Morphological and Structure of Three Broussonetia Phloem Fibers |
| Received:March 26, 2025 Revised:April 25, 2025 |
| DOI：10.11981/j.issn.1000-6842.2026.01.107 |
| Key Words:phloem fibers;Broussonetia plants;basic morphology;microfibril angle |
| Fund Project:国家科技基础资源调查专项（2019FY100900）。 |
| Author Name | Affiliation | Postcode | | LIU Xiaoyu* | 1National Engineering Research Center for Paper Making and Pollution Control， South China University of Technology， Guangzhou， Guangdong Province， 510640
2School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 | 510640 | | LIU Mengru | 1National Engineering Research Center for Paper Making and Pollution Control， South China University of Technology， Guangzhou， Guangdong Province， 510640
2School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 | 510640 | | LI Hailong | 1National Engineering Research Center for Paper Making and Pollution Control， South China University of Technology， Guangzhou， Guangdong Province， 510640
2School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 | 510640 | | XIAO Yuying | 1National Engineering Research Center for Paper Making and Pollution Control， South China University of Technology， Guangzhou， Guangdong Province， 510640
2School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 | 510640 | | LIU Ying* | 1National Engineering Research Center for Paper Making and Pollution Control， South China University of Technology， Guangzhou， Guangdong Province， 510640
2School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 | 510640 |
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| Abstract: |
| This study systematically measured the morphological and structural characteristics of three Broussonetia （Broussonetia kaempferi Siebold， Broussonetia papyrifera， Broussonetia kazinoki） phloem fibers， including basic morphology， surface features， and microfibril angle，and comparatively analyzed the commonalities and differences in fiber morphology and structure among these three species. The results showed that the three Broussonetia phloem fibers exhibited high similarity in fiber morphology and structure. In terms of basic morphology， the three Broussonetia phloem fibers were generally slender， with aspect ratio exceeding 180. Among them， the aspect ratio of the fibers of Broussonetia kazinoki was the largest of 265. In terms of surface morphology， the cell wall thickness and wall-to-lumen ratio of the three Broussonetia phloem fibers were relatively large， and there were obvious longitudinal wavy folds and transverse grooves on the fiber surface. Besides， the average microfibril angles of the three Broussonetia phloem fibers were relatively small， at 7.14°， 7.66°， and 7.32°， respectively. However， the density and crystallinity index of the phloem fibers of the Broussonetia kaempferi Siebold were slightly higher than those of the phloem fibers of the Broussonetia papyrifera and Broussonetia kazinoki. |
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