广西植物Issue(4)：565-569,556,6.DOI:10.3969/j.issn.1000-3142.2014.04.027
灵武长枣果实发育结构特征研究
Structure characteristic of developmental fruit of Ziziphus jujuba cv.Lingwuchangzao
摘要
Abstract
The structure characteristics in different development stages fruit of Ziziphus jujuba cv.Lingwuchangzao were studied by paraffin section techniques.The results were as foollows:(1)In slow growth period,the cell grown slowly,the exocarp was made up of 5 ~ 6 layers of cells.The epidermises cells constituted of one layer parenchyma cells and they were rectangular or elliptical.The parenchyma cells gradually increased inside the epidermis and formed sub-epidermal cells.The size of cavity appeared when the volume of fruit had been enlarging.The mesocarp had many vascular bundles;(2)The cells grew quickly in the first rapid growth period.The epidermis cells arranged looser.The increasing speed of cavity in the mesocarp was the fastest.The vascular bundles mainly existed in the mesocarp which was near the exocarp and endocarp;(3)The epidermises in step-down growth period were some rounded or elliptical cells and they became looser.The shape and volume of sub-epidermal cells were different and they arranged chaos. The size of cavity continued to increase and the vascular bundle became less and less in the mesocarp;(4)The exo-carp cells reduced to 3~4 layers,epidermis cells and the sub-epidermal cells were difficult to distinguish in the second rapid growth period.The size of cavity gradually increased with the volume of fruit increasing,many cells singly ar-ranged and became a net and finally formed a larger cavity.The number of vascular bundles were the least in the peel. In the course of Lingwuchangzao fruit development,whatever in different development stages or different locations,the morphological anatomical characteristics of fruit were dissimilar.关键词
灵武长枣/果实发育/结构特征Key words
Ziziphus jujuba cv.Lingwuchangzao/fruit development/structure characteristic分类
农业科技引用本文复制引用
景红霞,章英才..灵武长枣果实发育结构特征研究[J].广西植物,2014,(4):565-569,556,6.基金项目
国家自然科学基金(31160057) （31160057）
