sieve element
美 [sɪv ˈelɪmənt]英 [sɪv ˈelɪmənt]
- 网络筛分子;筛管分子;筛管;筛分子卸载;筛管成分

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The development of the radicle and the study of the sieve element of the seedling of Nelumbo nucifera
莲幼苗的胚根发育及其筛分子研究
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Developing mature of vascular bundle about 20 days after fertilization . The cells nucleus disappear in this period , secondary wall extended toward the inside . Sieve element formed network .
子叶维管束发育成熟约在受精后的20d,成熟时细胞核消失,次生壁向内延伸,筛管分子的细胞壁形成网纹结构。
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The Sieve Element Plastid Ultrastructure of 11 Gymnosperm Species and Its Taxonomical Significance
11种裸子植物筛分子质体的超微结构及分类