自然杂志 ›› 2018, Vol. 40 ›› Issue (6): 391-399.doi: 10.3969/j.issn.0253-9608.2018.06.001

• 特约专稿 •    下一篇

植物的“眼睛”在哪里?

邓兴旺   

  1. 北京大学 现代农学院,北京 100871
  • 收稿日期:2018-03-13 出版日期:2018-12-25 发布日期:2018-12-21
  • 通讯作者: 通信作者,“千人计划”引进高层次人才,美国科学院院士,研究方向:以水稻、拟南芥、玉米等为研究对象,主要从事植物光信号转导、杂交优势的分子机制、非编码RNA、全基因组选择技术等领域的研究工作。

How plants see

DENG Xingwang   

  1. School of Advanced Agricultural Sciences, Peking University, Beijing 100871, China
  • Received:2018-03-13 Online:2018-12-25 Published:2018-12-21

摘要:

地球上的生命经过漫长的演化,形成了目前的动物和植物。通常,动物可利用眼睛感知光线,然后将光信号转换为电脉冲传送到大脑来解释所看见的东西。此外,动物还能根据环境的变化和自身的需求自主移动。植物的生长发育和生活方式与动物存在显著差别,它们没有眼睛和大脑,终生固着在一个地方生活而不能自主移动。然而,植物拥有自己的优势。它们生命力旺盛,繁殖力超强,可拥有动物难以企及、高达几千甚至几万年的超长寿命。除了使地球丰富多彩以外,植物还为动物提供赖以生存的食物。植物虽然不会动,却也能洞悉世间万象变化,并且不同植物之间还存在着竞争与合作。更神奇的是,植物虽然没有眼睛,但也能看见光,甚至能看见我们人类眼睛看不到的光,并对不同的光照周期作出反应。

关键词: 植物, 眼睛, 光信号

Abstract:

Animals and plants were formed in their present states during the long-term evolution of life on the earth. Generally, animals can perceive light by their eyes, and then convert the information from the light to electrical impulses for their brains to interpret what they have seen and how to react. Furthermore, animals can move autonomously according to the changed environments or to their own requirement. Plants are distinct from animals in their development and their lifestyle, they do not have eyes and brain, and they live in one place throughout the life without the ability to move by themselves. However, plants have their own advantages. They have exuberant vitality and strong fertility, and can live up to several thousand even tens of thousands years, which is never achieved for animals. Besides making the earth rich and colorful, plants also provide food for animal life. Although they can not move, plant can make sense of the
complex world, and there are competition and cooperation between different plant species. Magically, without eyes, plant can also see the light including those wavelength of light which we can not see, and can response to different light period.