果树学报2025，Vol.42Issue(3)：603-616,14.DOI:10.13925/j.cnki.gsxb.20240586
6个欧洲李品种果实生长发育与显微结构变化的关系
Relationship between fruit growth and development and microstructural changes in six European plum varieties
摘要
Abstract
[Objective]Reveal the phenological period,appearance,and the microstructure changes in different European plum varieties during fruit growth in order to understand the pattern of growth and development of European plum fruits and provide reference for improving fruit quality.[Methods]Six European plum varieties were selected as the experimental materials for tracing changes in fruit phenol-ogy,fruit appearance and cell microstructure at different developmental stages,which were analyzed by paraffin microtomy method.[Results]The whole fruit development could be divided into the first ex-pansion period,the stone hardening period,the second expansion period,the color-changing period and the mature period.The fruit development period of the six European plum varieties was in the range of 121-160 d.Based on changes in fruit appearance,four stages could be distinguished:the rapid growth period(SI),the slow growth period(S2),the stable maturity period(S3)and the physiological fruit drop period(S4).Changes in fruit microstructure showed that the epidermis of the exocarp was a single-cell-layer structure,and the cell shape was neatly square and rectangular.Epidermis,subepidermis,me-socarp and vascular bundle cells in S1 were small,concentrated and dense.At S2,cells increased and diffused;at S3,the pericarp developed gradually;and the epidermis and mesocarp during S4 were rela-tively unchanged,while the subepidermis thickness became thinner and the phloem in the vascular bun-dle slightly degraded.Correlation analysis showed that there were significant correlations between fruit cell morphological parameters and appearance morphological indexes.[Conclusion]Revealed the pat-tern of fruit development and microstructure changes among six European plum varieties.It was found that the epidermis,subepidermis,mesocarp and vascular bundle cells expanded significantly in the ear-ly stage of fruit development,and tended to be stable in the late stages,accompanied by thinning of the subepidermis and slight degradation of phloem in the vascular bundle.The fruit appearance is closely re-lated to the area,perimeter,longitudinal diameters,equatorial diameter and roundness of mesocarp cells,and the morphology of mesocarp cells also has a direct impact on the longitudinal diameters and equatorial diameter of the exocarp cells.In order to provide an important reference for the regulation of fruit development process related cultivation methods and effective prevention and control of fruit cracking hazards by observing fruit phenology and analyzing growth and development changes.关键词
欧洲李/物候期/果实生长发育/显微结构/动态变化Key words
European plum/Phenological period/Fruit growth and development/Microstructure/Dy-namic changes分类
农业科技引用本文复制引用
杨芬芬,张展闳,曹海阳,王亚铜,耿文娟,樊国全,章世奎..6个欧洲李品种果实生长发育与显微结构变化的关系[J].果树学报,2025,42(3):603-616,14.基金项目
新疆维吾尔自治区高校基本科研业务费科研项目(战略发展类项目)(XJEDU2022Z005) （战略发展类项目）
自治区科研创新平台"新疆轮台杏、李野外科学观测研究站" （）
新疆维吾尔自治区林草局自治区林草专项基金种苗培育补助(林果种质资源表型鉴定) （林果种质资源表型鉴定）
