DEVELOPMENTAL STUDIES IN ORCHID FLOWERS .4. CYPRIPEDIOID SPECIES
DEVELOPMENTAL STUDIES IN ORCHID FLOWERS .4. CYPRIPEDIOID SPECIES
复制标题
DOI：
10.1111/j.1756-1051.1993.tb00076.x
复制
发表时间：
1993-01-01
影响因子：
0.9
通讯作者：
KURZWEIL, H
中科院分区：
文献类型：
--
作者：
KURZWEIL, H
用扫描电子显微镜研究了四种杓兰科植物（sensu Rasmussen 1985）的花发育，特别注意了构成合蕊柱的器官的早期发育。在雌蕊柱的腹侧基部观察到一个突出的结构。从其起始时间和起源位置来看，极有可能是正中正面雄蕊a3的残余。在calceolus中，正中心皮原基的形成时间比外侧心皮原基稍早，后发育为最大的柱头裂片。有趣的是，塞浦路斯在心皮发育的初始阶段表现出相反的顺序，即外侧心皮的原基在中间心皮的原基之前开始。
The floral development of four species of Cypripediaceae (sensu Rasmussen 1985) was studied by means of scanning electron microscopy, with special attention to the early development of the organs that constitute the gynostemium. At the ventral base of the gynostemium a prominent structure was observed. It is most probably a vestige of the median adaxial stamen a3 based on its early initiation and place of origin. In Cypripedium calceolus the median carpel primordium is, according to expectation, initiated slightly earlier than the lateral carpel primordia, and later develops into the largest stigma lobe. Interestingly, Cypripedium irapeanum shows an opposite sequence in the initial phase of the carpel development in that the primordia of the lateral carpels are initiated before the primordium of the median carpel.