论文部分内容阅读
作者观察了江蓠幼苗的早期发育过程,根据发育过程中的形态特征,将其划分成四个发育时期:(1)孢子初分时期;(2)“半球状体”时期;(3)盘状体时期;(4)幼苗时期。三个不同的发育途径:(1)具有盘状体的幼苗发育;(2)不具有盘状体的幼苗发育;(3)幼苗的畸形发育,和出现两种幼苗。并讨论了盘状体的“愈合”现象和江蓠幼苗在发育过程中有关“假根”的问题。
The author observed the early development of the seedlings of Gracilaria tenuistii and divided them into four developmental stages according to their morphological characteristics during development: (1) initial stage of sporulation; (2) “hemispherical body” period; (3) plate Like body period; (4) seedling period. Three different developmental pathways: (1) seedling development with disc-shaped body; (2) seedling development without disc-shaped body; (3) malformation development of seedlings, and emergence of two seedlings. Discusses the phenomenon of “healing” of disc and the problem of “rhizoid” in the process of development.