摘要
采用Olympus-BX53光学显微镜,观察了人工培养条件下多羽实蕨(Bolbitis angustipinna(Hayata)H.Ito)配子体各发育阶段的结构特征,其中,重点观察了边缘细胞的形态特征及假根的分化。结果发现,配子体的发育过程包括孢子萌发、原丝体发育、片状体形成、原叶体形成等4个阶段;配子体的毛状体、边缘细胞、假根具有稳定的系统学特征,即毛状体为单细胞棒状,边缘细胞具有齿槽和突起2种形态,假根除具有弯曲、分叉和顶端膨大的特征外,还具有不规则缢缩和锯齿形的特征。
The structural features of gametophytes of Bolbitis angustipinna （Hayata） H. Ito at each stage of development were observed under the condition of artificial culture by using Olympus-BX53 optical microscope. The morphological characteristics of the border cell and the rhizoid differentiation were observed. It was found that the development of B. angustipinna gametophyte included spore germination, protonema development, formation of the prothallial plate, and prothallus formation. And the gametophyte of trichome, border cell and rhizoid had stable systematic characteristics： the trichome was unicellular and clavate; the border cell had two special forms, alveoli and protuberance; rhizoids were not only bended, bifurcated and top swollen but also con stricted irregularly and serrated.
出处
《热带生物学报》
2014年第1期43-47,共5页
Journal of Tropical Biology
基金
国家自然科学基金(31170294)
关键词
多羽实蕨
配子体
发育
Bolbitis angustipinna
gametophyte
development
