请输入您要查询的字词:

 

单词 Camerarius, Rudolph Jacob
释义
Camerarius, Rudolph Jacob

Scientists
  • (1665–1721) German botanist

    Born the son of a professor of medicine at Tübingen (now in Germany), Camerarius was himself educated there and received his doctorate in 1687. He joined the staff at Tübingen and following his father's death in 1695 was appointed professor of medicine and director of the botanic gardens, posts he occupied until his death from TB in 1721.

    In 1694 in De sexu plantarum (On the Sex of Plants) Camerarius produced clear experimental evidence for the sexuality of plants first proposed by John Ray and Nehemiah Grew. By isolating pistillate (female) dioecious plants from staminate (male) plants (dioecious referring to plant species where the male and female flowers are borne on separate plants), he was able to show that although the pistillate plants produced fruit, they lacked seeds. With monoecious plants (those that bear separate unisexual male and female flowers on the same plant, e.g. maize) he found that removing the male inflorescence also resulted in sterile fruit.

    In his description of plant anatomy Camerarius identified the stamens as the male organ and the style and stigma as the female part. He also described the role of pollination.


随便看

 

科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。

 

Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号 更新时间:2024/12/26 1:05:46