欧李次生木质部导管结构和果实钙含量  

Cerasus humilis Secondary Xylem Vessel Elements Structure and Fruit Calcium Content

作　　者：马建军[1] 任艳军[1] 张立彬[1] 

机构地区：[1]河北科技师范学院,秦皇岛066004

出　　处：《林业科学》2014年第12期139-143,共5页Scientia Silvae Sinicae

基　　金：河北省自然科学基金(C2008000483)

摘　　要：野生欧李（Cerasus humilis）果实俗称＂钙果＂,因其人体所需的活性钙（水溶性钙和磷酸钙）含量高而备受关注（曹琴等,1999;张美莉等,2007;马建军等,2007;刘会茹等,2011）。实生居群的野生欧李果实中矿质营养代谢存在遗传多样性,这与丰富的营养器官和生殖器官性状遗传变异类型等因素有关（王有信等,2005）,经系统聚类分析,To clarify factors influencing differences in calcium content of the big fruit type and small fruit type wild Cerasus humilis, the vessel elements structure characteristics of their roots and stems were studied by a Scanning Electron Microscope （ SEM）. Moreover, the calcium content of two type＇ s fruits at different fruit development stage （ young stage, maturity stage, hardening stage） was determined. The results indicated that the secondary xylem vessel elements of two types C. humilis were both pitted vessel, simple perforation, with two or one or no tails in both end walls. Compared with big fruit type, the distribution frequency of vessel elements with two tails in both end walls in small fruit type was lower, the vessel elements without tails in both end walls was more, and the vessel was wider than big fruit type. The fruit calcium content and water percentage of small fruit type were higher. The vessel element structure characteristics may have some relation with the calcium content in the two type＇s fruits.

关 键 词：欧李 根系 枝条 导管 果实Ca 

分 类 号：S662.5[农业科学—果树学]