种子植物

Characterization of ABA receptor in membrane or/ and in cytosol may be important in this regard.

ABA在植物对环境胁迫的响应以及种子成熟与萌发等生长发育的多个过程中起着重要的生理作用。

Abrin is one of the potent toxins isolated from the beans of plant abrus precatorius.the toxic protein consists of two disulfide-bonded subunits,the a and b chains.the b chain is a galactose-specific lectin that facilitates the binding of abrin to the cell membrane that precedes endocytosis.after entering the cells,the a chain catalytically inactivates 60s ribosomal subunits by removing adenine position 4324 of 28s r–rna,and thereby inhibits protein biosynthesis.

相思子毒素是从豆科植物(abrus precatorius l。)种子中分离的一种细胞毒性蛋白。它由a，b两条链组成，由一个二硫键相联，b链具有半乳糖凝集活性，可与细胞膜上受体结合，帮助a链进入细胞内，a链进入细胞催化失活60s核糖体亚基，从而使细胞蛋白合成被抑制。

The infection of rhizobia to rice was a dynamic process beginning with surface colonization of the rhizoplane (especially at lateral root emergence), followed by endophytic colonization within roots, and then ascending endophytic migration into the stem base, leaf sheath, and leaves where they developed high populations.

同时，根瘤菌还可以沿植物的表面从根到地上部分迁移。在植物的生殖生长阶段，内生根瘤菌仍然保持活动性，可以进入烟草子房的子房壁、胎座和胚珠内，暗示根瘤菌通过种子向子代垂直传播的可能性。

The recent studies showed that most orchid mycorrhizae belong to Basidiomycota and Deuteromycotina fungi, and some belong to Ascomycota. There are two modes for the formation of orchid mycorrhizae, one is the infection of orchid seeds and the other is the infection of orchid radicles.

目前研究已知，感染兰科植物根部并能与之共生的真菌绝大多数属于担子菌门和半知菌门，也有部分属于子囊菌门；兰科菌根的形成可分为两种情况：一是对兰科植物种子的侵染；二是对成长新根的侵染。

The formation of the plant body.

内容包括：细胞分裂，极性与细胞生长，种子发育与发芽，植物体的形成，影响植物生长发育的因子，植物运动，老化与衰化，脱落，休眠。

A seed or pod of any of these plants .Some plants grow from seed and some from cuttings.

有的植物从种子发芽生长，有的植物从插枝成长起来。

In this paper, we presented the shrub influence model for soil seed bank based on considering height and canopy of individual plants and direction of main-wind

在本项研究中，在结合主风方向，植物个体高度和冠幅及其与抽样点的距离的基础上，确定植物个体对土壤种子库的综合影响模型为

By removed ovary culture after positive and negative hybridization, produced interspecific hybridization, and have improved the hybrid seed through removed ovary culture and induced to shoot by culture medium MS, and produced hybrid F1, the plant of Brassica junce×B.pekinesis, the advantage characteristic of hybrid plant is similar to female nature;By cytology authenticating, chromosome number of F1 young flower bud cell (2n=28), it is the sum of monoploid chromosome number of female parent Brassica junce(2n=36) and male parent B.pekinesis(2n=20); The hybridization to Brassica junce×B.pekinesis, and embryonic bud come from removed ovary culture, and it found another form of plant embryo saving.

以芸薹属植物芥菜型油菜和白菜为研究对象，对其进行常规正反杂交后子房的离体培养，通过离体子房培养获得的杂种种子经MS培养基诱导成苗，获得了芥菜型油菜与白菜的杂种F1代植株，表现出杂种优势；通过细胞学的方法，鉴定了杂种F1幼蕾体的细胞染色体数为2n=28，为母本芥菜型油菜（2n=36）和父本白菜（2n=20）的单倍体染色体数之和；芥菜型油菜与白菜常规杂交后，经离体子房培养获得了&胚性芽&，确立了植物胚挽救的另一种形式。

"We managed to save it just in time for the 175th anniversary of Belgium's independence," said Simon Linington, the head of curation at the Millennium Seed Bank at Wakehurst Place, West Sussex.

报道说，目前世界范围内这种植物的种子还不到3000颗。最近70年来，人们在野外也没有发现过这种植物。因此，雀麦草也是世界上面临灭绝危险最大的物种之一。

It was Vasco da Gama who succeeded in bringing the treasured spices to Europe and most of the ancient mariners took seeds to plant on distant shores.

华士古。达伽玛成功地将珍贵的植物物种带到欧洲，许多老船员也带着植物的种子散播到遥远的大洋彼岸。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。