湿地植物根茎的形态特征及其克隆生长繁殖

Morphology and Clonal Growth and Reproduction of the Plant Rhizomes in Wetlands

根茎作为大多数湿地植物的克隆繁殖器官,具有其独特的显微形态、年龄结构和空间分布特征。根茎生长过程中的养分季节动态与空间拓殖能力都与湿地多变的生境特征相适应。根茎的克隆繁殖比有性繁殖具有进化优势,成为湿地植物的主要繁殖模式。在综述目前对湿地克隆植物根茎的形态及其克隆繁殖等相关研究的基础上,探讨了根茎在湿地植物研究中的重要性。

As the clonal reproduction organism for most wetland plants,rhizomes are characterized with their special micro-morphology,age structure and spatial distribution.The seasonal dynamics of nutrients and the strong colonization ability of rhizomes are adapted to the changeful wetland microhabitats.The clonal reproduc-tion is the main reproductive pattern for wetland plants for its advantage in evolution compared with sexual re-production.The morphological characteristics and clonal growth and reproduction of plant rhizomes in wet-lands are reviewed in this paper and the importance of rhizomes for wetland plant research are discussed in general.