子叶

Type and sole genus of the Clethraceae; deciduous shrubs or small trees: white_alder, summer-sweet.

桤叶树属的模式单属；双子叶的灌木或乔木。

Seeds 2-4 per locule, flat, not comose; endosperm none; cotyledons large, flat.

种子2-4每室，平，不具丛毛；胚乳没有一个；子叶大，平。

Seeds numerous, apically comose; embryo straight, cotyledons as long as radicle.

种子多数，顶部具丛毛；直接的胚，子叶倍于胚根。

Seeds linear, elongated, not beaked, apex comose; endosperm copious; cotyledons linear, flat, radicle superior.

结子线形，拉长，不发，先端；胚乳丰富线形，平的子叶，上位的胚根。

Seeds vertical; cotyledons ovate, complanate.

种子垂直子叶卵形，扁平。

Seeds straight; cotyledon complanate.

种子直；子叶扁平。

An out crossing plant needs to transfer its pollen to the stigma of a conspecific plant, and receive pollen from a conspecific.

但是大多数开花的双子叶植物，依靠昆虫，鸟，蝙蝠或小型哺乳动物来传播花粉，作为交换，这些动物或以花蜜或以花粉本身为食。

The cotyledonal petiole segments from rapeseed variety Yangyou 4 were infected and transformed by A. tumefaciens strain LBA4404/pCAMBIA1301::hrf2, and transgenic rape plants were obtained by screening with hygromycin.

由根癌农杆菌LBA4404介导，将重组表达质粒pCAMBIA1301：：hrf2转化甘蓝型油菜杨油4号子叶节，获得了抗潮霉素的再生转基因油菜植株。

Otherwise, the high expression level of PmSERK1 was detected in the regenerated cotyledonary embryos.

另外，在再生的子叶胚中，PmSERK1的表达量也很高。

In the present study, different genotypes of provided soybeans were screened via the cotyledonary node regeneration system.

本研究的主要结论如下： 1、子叶节器官发生途径的再生频率在不同大豆基因型之间差异较大。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。