Histochemical studies on the distribution and accumulation of trans-polyisoprene in the rubber-producing plant Eucommia ulmoides.

Autor: Ma XF; College of Mechanical and Electronic Engineering, Northwest Agriculture & Forestry University, Yangling, Shaanxi 712100, China; Western Scientific Observation and Experiment Station for Development and Utilization of Rural Renewable Energy, M.O.A, Northwest Agriculture & Forestry University, Yangling, Shaanxi 712100, China., Yao XF; College of Mechanical and Electronic Engineering, Northwest Agriculture & Forestry University, Yangling, Shaanxi 712100, China; Western Scientific Observation and Experiment Station for Development and Utilization of Rural Renewable Energy, M.O.A, Northwest Agriculture & Forestry University, Yangling, Shaanxi 712100, China., Chi ZZ; College of Forestry, Northwest Agriculture & Forestry University, Yangling 712100, China., Zhu MQ; College of Mechanical and Electronic Engineering, Northwest Agriculture & Forestry University, Yangling, Shaanxi 712100, China; Western Scientific Observation and Experiment Station for Development and Utilization of Rural Renewable Energy, M.O.A, Northwest Agriculture & Forestry University, Yangling, Shaanxi 712100, China. Electronic address: zmqsx@nwsuaf.edu.cn.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Jun; Vol. 270 (Pt 1), pp. 132405. Date of Electronic Publication: 2024 May 15.
DOI: 10.1016/j.ijbiomac.2024.132405
Abstrakt: Eucommia ulmoides rubber (EUR) is a high-quality natural rubber resource, which can be extracted from different organs of the Eucommia ulmoides tree. In this study, EUR was isolated from the leaves, barks, and pericarps, and the structural characteristics and physicochemical properties of EUR were systematically determined. The accumulation and distribution of EUR in different tissues were assessed through in situ observations combined with cellular and subcellular scales. The preliminary analyses indicated that the variations in the physicochemical properties of EUR across different tissues were associated with its accumulation microstructure. Further analyses by SEM and TEM showed that the initial cell differentiation and fusion resulted in the formation of tubular structures without any nucleus. A limited number of rubber particles were generated within the cytoplasm, concurrent with aggregation and fusion. Eventually, rubber particles filled the entire cytoplasm, and organelles disappeared to form highly aggregated filamentous structures. In addition, the number and area of EUR-containing cells were closely related to the organization sizes of barks and leaves. This study provided valuable insights into Eucommia ulmoides histology and the rubber industry.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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