子叶

Its cotyledon node zone is telome elongation type.

向日葵幼苗叶节区类型为顶枝伸长型。

In addition .there occurred difference in the structure of cotyledonary haustrum and other storages.

此叶吸器结构和其它贮藏物等方面也存差异。

Abstract : Orchidaceae is one of the largest families of monocot plants.

摘要 ： 兰科植物为单叶植物中最大个科。

Relationships of some families of dicotyledons and genera of Papaveraceae viewed from the standpoints of their isoquinoline alkaloids.

从异喹啉生物碱试论双叶植物些科与罂粟科些属亲缘关系.

The similarity of its heteropolar 3- or 6-aperturate pollen to the 3-aperturate pollen of Eudicots might result from convergent evolution.

其异极3沟或6沟型花粉与真双叶植物3沟花粉相似是趋同演化结果。

The large amount of PAO could be found in the cytoplasm of parenchyma in cotyledon and in the cell membranes and intercellular spaces of cortical parenchyma in phyllogen.

顶芽皮层薄壁组织膜、间隙和叶薄壁组织质也有PAO大量分布。

The results showed that the levels of arginine and arginase were the highest in cotyledons, which decreased slowly during plant development, followed by leaves and stems, with roots being the lowest.

结果表明，精氨酸含量和精氨酸酶活性叶中最高，且随幼苗生长发育逐渐下降，其次为叶片和茎，根中最低。