Research in the early embryonic developmental mechanism of silkworm will promote understanding in early embryonic developmental mechanism of other insects 文章綜述了鱗翅目昆蟲家蠶和雙翅目昆蟲果蠅的早期胚胎發(fā)育在形態(tài)學及基因水平的研究結(jié)果。
Several studies indicate that a combination of intrinsic developmental mechanisms and experience - dependent plasticity affects the shape and maintenance of brain maps 有幾項研究指出,腦地圖的成形與維持,受到下列兩個因子的綜合影響:固有的發(fā)育機制,以及經(jīng)驗造成的調(diào)整。
Nonetheless nothing has been done on its role and function in the evolutionary and reproductive biology and in the life cycle of this species , saying nothing of its developmental mechanism , since the species was found from west china in 1869 然而自1869年珙桐被發(fā)現(xiàn)以來,未見關(guān)于珙桐苞片在該物種進化生物學、生殖生態(tài)學及其生活史中的作用和地位的報道。
This species is one of perfect materials to examine the developmental mechanism of plant bract , to explore the developmental relationship between leaf and bract , as well as to study the role and essential function of bract on plant reproductive biology and ecology 該物種是研究植物苞片發(fā)育的分子機理及探討苞片與葉片發(fā)育的相互關(guān)系的理想材料,也是探討苞片在植物生殖生物學及生殖生態(tài)學中作用和功能的理想材料。
The paper summarizes research advances about the developments of somatic embryos in several conifers , which have appeared at home and abroad in recent years , mainly in the effects of medium components in tissue culture and aba on the development of somatic embryos , and cytology , programmed cell death , genes and protein composition related to the development of somatic embryos , and further discusses the developmental mechanisms of somatic embryos and the role of somatic embryos in genetic transformation system 本文綜述了近年來國內(nèi)外有關(guān)裸子植物中幾種松杉類植物體細胞胚發(fā)育過程的研究報道,其中主要涉及培養(yǎng)基成分和脫落酸( aba )對體細胞胚發(fā)育的影響,以及體細胞胚發(fā)育在細胞學、細胞程序性死亡、相關(guān)基因和蛋白質(zhì)組學等方面的研究進展,并進一步討論了松杉類植物體細胞胚的發(fā)育機理,以及體細胞胚在遺傳轉(zhuǎn)化系統(tǒng)中的作用。
For the development of simulation platform , the developmental mechanism of directdraw component in directx multi - media development libraries was studied here , based on which the simulation platform of integrated flight / propulsion control system was designed and developed providing a nice human - computer interface for integrated control system 針對仿真平臺界面開發(fā)問題,本文主要研究directx多媒體開發(fā)庫中directdraw組件的開發(fā)機理,以此為基礎設計開發(fā)了飛/推綜合控制系統(tǒng)仿真平臺界面,為綜合控制系統(tǒng)提供了友好的人機交互界面。