- 期刊
- OpenAccess
臺灣產菟絲子屬與無根藤屬植物之自我寄生與重寄生現象
The Self-parasitism and Hyperparasitism ofCuscuta and Cassytha in Taiwan
摘要
在我們調查研究臺灣產蒐絲于屬與無根藤屬植物之寄生現象期間，發現臺灣產旋花科菟絲子屬植物有：菟絲子、中國菟絲子、臺灣菟絲子與日本菟絲子；而樟科無根藤屬植物只有無根藤一種。經調查研究的處分布地點，發現這些寄生植物除了以蕨類、裸子植物、雙子葉植物及單子葉植物為寄主外，均有自我寄生的現象，其中有些種類更有重寄生現象，包括菟絲子寄生在臺灣菟絲子之同屬不同種的重寄生現象以及菟絲子屬與無根藤間之不同屬的重寄生現象。不論是自我寄生或重寄生，兩者均是分生能力較強的寄生植物幼嫩組織對成熟的寄主老莖形成吸器。本研究除實地調查自我寄生及重寄生現象外，並進一步做其解剖觀察之探討。
並列摘要
The distribution and the hosts of the parasitic plants of Cuscuta and Cassytha in Taiwan were investigated. Four taxa of Cuscuta and one species of Cassytha were found. They are Cu scuta australis R. Br., C. chinensis Lam., C. japonica Choisy var. formosana (Hay.) Yunker, C. japonica Choisy var. japonica, and Cassytha filiformis L. The host plants include ferns, gymnosperms, dicotyledons, and monocotyledons. Each species shows self-parasitism and some taxa possess the phenomenon of hyperparasitism. The younger tissues of one parasitic plant, with vigorous capacity in cell division, may produce haustoria to invade the more mature and older stem of another parasitic plant which becomes the host. Anatomical observations were made for the self-parasitism and hyperparasitism of those parasitic plants and their phenomena are discussed.
延伸閱讀
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