metamorphosis [,metə'mɔ:fəsis]

metamorphosis的基本解释

n.

变形, 变质, 蜕变, 锐变

• She's undergone quite a metamorphosis since you last saw her.
• 自你上次见到她以来，她已完全变了一个样子。

• A butterfly is produced by metamorphosis from a caterpillar.
• 蝴蝶是由毛虫蜕变而成的。

• One of the favourite games in fairy tales is metamorphosis.
• 神话故事的惯用手法之一是凭借魔力改变形态。

metamorphosis所属的单词分类

Bug & Insect / 虫与昆虫 [133]

yellowjacket  ·  woolly bear caterpillar  ·  Swallowtail Butterfly  ·  stink bug  ·  longhorn beetle  ·  leafhopper  ·  leafcutter ant  ·  house fly  ·  ambush bug  ·  Junebug

与metamorphosis相关的网络例句 [注：此内容来源于网络，仅供参考]

Several basic tenrts of otolith research have been questioned recently with regard to eel metamorphosis.specifically,some researchers have suggested that otolith increment formation is not daily,and otolith material may be resorped during metamorphosis.we conducted a rearing experiment to test the hypothesis that increment formation is daily and that the otolith continues to grow during eel metamorphosis.we marked the otolith of wild-caught leptocephali and reared these fish through metamorphosis.metamorphosis was characterized by a decreasing standard length,pre-anal length,and body depth accompanied by an increase in pigmentation and a change in behavior.

最近学者关注的鳗的耳石的研究的几个最基本的问题涉及到鳗的变形。尤其是很多研究者认为耳石的日轮沉积并非是每天的，耳石的材质可能是会在变态过程中被重吸收一部分。我们做了个养殖的实验来测试鳗鲡耳石的形成的每天一轮而且在鳗鲡的变态发育阶段耳石是在继续生长的。我们标记了野外捕捞的蠕鳗幼体，养过变态期。变态期是通过标准长度，肛前长和体高的减少和色素的减少以及行为的变化来定义的。

A cDNA segment was isolated from M. meretrix larvae. The results of caspase in situ detection in larval developmental stages revealed that there were activated caspase from L1 to L3, indicating caspase is involved in the whole developmental process. The main apoptosis area was found in velum at L3 before metamorphosis, indicating the degradation of velum might be the process of apoptosis. The larvae before metamorphosis were treated by caspase specific inhibitor to analyze the role of caspase in this process. The results indicated that caspase have function metamorphosis.

根据caspase在不同物种中的保守区域设计简并引物，在文蛤幼虫中扩增到cDNA序列片段；检测有活性的caspase在文蛤幼虫各发育时期的分布部位，发现其在L1至L3期幼虫中都有分布，说明整个幼虫形态变化过程中都有caspase的参与；细胞凋亡检测结果显示，幼虫主要发生细胞凋亡的部位在L3期幼虫的面盘，即变态过程中要退化的器官，说明细胞凋亡可能是文蛤幼虫变态过程中面盘退化的主要机制；用caspase特异性抑制剂处理变态前幼虫，发现幼虫变态率下降，初步验证了caspase在文蛤幼虫变态过程中的作用。

The outside gill disappeared, the gill arches developed to from the branchia, later the branchia appeared primary protuberance, along with developing, it appeared the secondary protuberance and the third protuberance, until the 36 stage, the stage is the inside gill developing at the peak, later it came into the period of the metamorphosis, the inside gill degenerated, the third protuberance began shrank, next the secondary protuberance and the primary protuberance shrank, finally the gill arches shrank and disappeared, the metamorphosis completed.

内鳃的发育是首先由鳃弓上的突起形成鳃叶，其次鳃叶上出现初级突起，随着进一步发育出现次级突起和三级突起，直到内鳃发育最高峰(胚胎发育的36期)。随后进入变态期，内鳃开始退化，首先是三级突起开始萎缩，其次是次级突起和初级突起，最后是鳃弓，直至鳃弓完全消失，变态完成。