...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>植物研究雑誌 >Homostyly and Autogamy in Ophiorrhiza pumila (Rubiaceae) from the Ryukyu Archipelago
【24h】

Homostyly and Autogamy in Ophiorrhiza pumila (Rubiaceae) from the Ryukyu Archipelago

机译：琉球群岛的Ophiorrhiza pumila（Rubiaceae）的同源和自育

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Floral morphology of Ophiorrhiza pumila from the Ryukyus was investigated to determine the presence/absence of heterostyly. The investigation indicated that O. pumila is not distylous, but is long-styled homostylous, with stigmata and anthers at almost the same height around the throat of corolla tubes. This agrees with a previous description of O. pumila from continental China, but differs from that of heterostyly in O. pumila from Taiwan. This incongruence may be caused by intraspecific polymorphisms in heterostyly, however, O. pumila from Taiwan investigated here also showed long-styled homostyly. In a bagging experiment, the reproductive success in fruit set and number of mature seeds was high, and comparable to open-pollinated individuals. In field observations, the rate of flower visitation was low, and no pollen grains were found on captured insects. Because of self-compatibility and high autodeposition efficiency independent of insect pollination, autogamy is thought to be the principal reproductive mechanism of O. pumila in the Ryukyus.
机译：研究了来自Ryukyus的Ophiorrhiza pumila的花形，以确定是否存在异位。调查表明，O。pumila不是畸形的，而是长形的同型，柱头和花药在花冠筒的喉部周围几乎相同的高度。这与先前对中国大陆O. pumila的描述是一致的，但是与台湾对O. pumila的异样描述不同。这种不一致可能是由杂种内的种内多态性引起的，但是，来自台湾的O. pumila在这里进行的调查也显示出长型同质。在套袋试验中，坐果和成熟种子数量的繁殖成功率很高，可与开放授粉的个体相媲美。在野外观察中，花朵的访花率很低，在捕获的昆虫上没有发现花粉粒。由于其自身的相容性和独立于昆虫授粉的高自动沉积效率，因此，自育是琉球菌O. pumila的主要繁殖机制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号