“微观繁殖体”溯源

通过查阅"微观繁殖体"相关文献,对其概念进行溯源追踪并据以总结归纳。笔者认为"微观繁殖体"这个概念不应该作为放散的孢子、配子、合子、不同生长阶段的显微个体及有生长能力的大型海藻碎片的统称,而应只是泛指那些肉眼不可见的只进行营养繁殖的二倍体细胞团、脱落下来的组织块和"色素体"(有色藻段)等碎片,即是一个或者多个二倍体的藻类细胞。并以石莼属绿藻浒苔(Ulva prolifera)为例,简述浒苔微观繁殖体在其生活史中的主要作用,为浒苔"微观繁殖体"的理论研究和实际利用奠定基础。

BRIEF INTRODUCTION OF MICROPROPAGULE

The concept of “micropropagule” is traced and summarized by referring to the relevant reports in this study.We suggest that the concept of “micropropagule” should not be regarded as a general term of the released spores, gametes,zygotes, microscopic forms in the different stages or the large seaweed fragments, it refers to those fragments which are invisible, for example, the diploid cell clusters, the fallen tissue blocks and “pigment bodies”(colored algal segments).Actually, micropropagules are one or more diploid algal cells. Taking Ulva prolifera as an example, the main role of the micropropagules in the life history of Ulva prolifera is briefly described, which lays a foundation for theoretical research and practical use of the “micropropagule” of Ulva prolifera.