药用类短命植物新疆阿魏花蜜腺的发育解剖学研究  

Developmental and anatomical studies on the floral nectaries in Ferula sinkiangensts K. M. Shen

作　　者：王虹[1] 张富春[1] 

机构地区：[1]新疆大学生命科学与技术学院,乌鲁木齐830046

出　　处：《植物研究》2004年第4期406-409,i001-i003,共7页Bulletin of Botanical Research

基　　金：国家基础研究快速反应项目 (新疆早春短命植物异速生长的分子机理研究)

摘　　要：类短命植物新疆阿魏 (FerulasinkiangenstsK .M .Shen) ,是新疆独具特色的药用蜜源植物 ,其花蜜腺位于下位子房的花盘之上 ,由子房上部的表层细胞特化而形成的 ,属下位子房上的盘状蜜腺。但由于其花柱短 ,基部呈圆锥状 ,蜜腺分布于盘状结构表面除花柱外的区域 ,因而可以认为是花柱基部类蜜腺的一种扩展和特化 ,属于从子房蜜腺向花柱蜜腺过渡的类型。在蜜腺下方分布有大量的子房维管束 ,其泌蜜途径可能为 :前蜜汁经共质体或非共质体途径到产蜜组织中 ,加工后再经共质体途径运进气孔下方的特殊细胞中 ,再分泌到孔下室 ,经气孔泌出。其花蜜腺在发育过程中液泡化动态明显 ,PAS反应测试细胞具阳性物质 ,淀粉粒积累动态较明显。The ephemeral plant is one of important characteristicn ectariferous plant in Xinjiang. Ferula sinkiangensts has a floral nectary located on the disc at the base of the ovary. The nectary is differentiated from the superficial layer cells of the above part of ovary. But the receptacle is short ,and its base is Taper shape. the nectary located on the superficial part except the receptacle, so it is supposed that the nectary is a transitional type from the ovary nectary to the receptacle nectary. There are many vascular bundle under the nectariferous tissue. The pre-nectar may be get to the nectariferous tissue through plastid that altogether body or plastid that not altogether body. After its forming, the nectar will be carried to the special cells which are under the air vent, and then it excreted from the stoma, During the development of the nectary, both the starch grains and the vacules have appeared obvious dynamic changes. The result of PAS reaction shows that the cell test was positive as the starch grains obviously accumulated.

关 键 词：子房 花柱 花蜜腺 泌蜜 蜜源植物 维管束 积累动态 短命植物 液泡化 细胞 

分 类 号：Q944.682[生物学—植物学] S661[农业科学—果树学]