apical bud中文什么意思

顶芽

• apical:    adj. 1.顶点的，顶端的。 2. ...
• bud:    n. 〔口语〕伙伴，兄弟〔buddy ...
• bud:    n. 1.芽，萌芽，幼芽；蓓蕾，?朵 ...

例句与用法

1. Pea ; apical bud ; senescence ; programmed cell death
   豌豆顶芽衰老细胞编程性死亡pcd
2. Shoots grow in flushes , showing rapid growth , then stopping as the apical bud aborts
   花苞最先开始快速的涨大，花苞的尖牙会自然的掉落。
3. Microstructural , ultrastructural and ndna changes of the cells during the apical bud senescence in pea
   豌豆顶芽衰老过程中的显微超微结构和ndna的变化
4. Labeling tunel method . the cell ultrastructural changes were similar to apoptosis in animal cells : the apical meristemetic cells underwent the programmed cell death . this was first detected in the apex cells of apical meristem , while peripheral cells differentiated gradually into different parts of a floral bud . but all the cells in the floral bud were subjected to the pcd process before it developed into a complete flower . 140bp dna fragment was found to deposit in apical bud during the plant development . the most important role of caspase - 8 was detected by western blot , and the expression of the procaspase - 8 was time - related with the dna frgmentation and the transformation from vegetative to the reproductive growth . these results suggested that pcd was an active process during the differentiation of apical meristem , and the senescence observed in the apical bud was due to the pcd process
   显微超微结构研究表明，短日照条件下豌豆顶芽的衰老过程是从营养生长锥向花芽的转化，而用dna原位末端标记tunel caspase - 8 western blot和140 bp dna片断积累的试验结果证明，转化为花芽的整个生长锥细胞发生了编程性死亡pcd ，而且其最顶端部分细胞首先发生pcd ，而顶端周围的分生组织细胞逐渐分化出花芽的各部分，但顶芽最后并没有发育成为完整的花，所有细胞就都发生pcd ，从而顶芽衰老。