雄蕊和雌蕊之间的差异|比较类似术语之间的差异

Key Difference – Stamenvs pistil

这flower is considered as the reproductive organ ofangiosperms（开花植物）。它由雄性生殖单元（雄激素）和女性生殖单位（妇科）组成。雄蕊由花药和细丝组成。雌蕊由污名，风格和卵巢组成。两种结构都涉及有性繁殖。这stamen (anther) involves in the synthesis, and the release ofpollen晶粒，雌蕊涉及通过污名接收花粉颗粒，提供足够的条件发芽and providing a site for受精（子房）。这关键区别在雄蕊和雌蕊之间雄蕊是雄性生殖器官，产生血管的花粉，而雌蕊是产生被子植物胚珠的女性生殖器官。

1。概述和关键差异
2。What is Stamen
3。什么是雌蕊
4.Similarities Between Stamen and Pistil
5.Side by Side Comparison – Stamen vs Pistil in Tabular Form
6.Summary

什么是雄蕊？

花的雄蕊被称为雄性生殖单位。这也称为雄性元素。它由花药和细丝组成。花药由灯丝持有，这是一个长结构。细丝也称为茎。雄蕊是花的个体成分，花中存在的雄蕊数量根据植物的类型而变化。它们位于花在花中，平均水平，每朵花中大约有5至6个雄蕊。

花药参与花粉颗粒的生产。一旦花粉颗粒成熟，它们就会被释放到外部环境中，污名将被花的女性生殖单位所接受。细丝是授粉的重要结构。如果花喜欢self pollination，细丝将使花药弯曲同一花的污名。如果喜欢cross-pollination，，，，the filament makes the anther to be bent away from the stigma.

Figure 01: Stamen

在分析被子植物的横截面时，可以鉴定两个不同的裂片。在每个叶子两个microsporangiaare present. These are referred to as thecae. Angiosperm anther possesses four theca or microsporangia. Each microsporangium consists of 4 cell layers from outside to the inside;表皮，Endothecium，中层和tap。外部三层成熟后涉及释放花粉颗粒。Tapetum为花粉中的开发花粉颗粒提供了足够的营养。花粉颗粒通过mitotic division。Once they are matured within the pollen sacs, they are released into the external environment for germination. The fate of the pollen grains depends on different pollinating agents.

什么是雌蕊?

雌蕊是花的雌性生殖单位。换句话说，它被称为妇科。雌蕊由三个主要单元组成；污名，风格和卵巢。污名存在于样式的远端。它位于妇科中的较高水平，以接收成熟的花粉颗粒。妇科的污名或花粉尖端具有一种特殊的结构，称为柱头乳头。这些结构充当成熟花粉颗粒的接受细胞。

一旦释放花药、花粉粒get desiccated due to the conditions of the external environment. Rehydration is facilitated by the sticky nature of the stigma and thereby provides adequate conditions for the germination of pollen grains. This results in the generation of the pollen tube that grows towards the ovary through the style. Stigma also involves the recognition of the specific pollen grains for a particular species. If the pollen specificity is not ensured, the stigma initiates rejection mechanisms.

图02：雌蕊

这ovary is an enlarged portion that is present at the base of the pistil involves in the production ofovules。According to the position of the ovary in flower, it is of three types; superior ovary (attached to the receptacle above other floral attachments), half-inferior ovary (partially embedded in the receptacle) and inferior ovary (completely embedded by the receptacle and all other floral attachments are present above the ovary). Once the pollen tube enters the ovary through a pore referred to as the micropyle, it releases themale gamete到达胚珠并与之融合以形成Zygote。This is known as fertilization.

What is the Similarity Between Stamen and Pistil?

Both involve in the reproduction and are considered as the reproductive units of the flower

雄蕊和雌蕊有什么区别？

Stamen vs Pistil
雄蕊被称为雄性元素，它是花的雄性生殖单元，涉及花粉颗粒的生产和释放。	这pistil is the female reproductive unit of the flower and consist of a pollen-receptive tip known as stigma which provides adequate conditions for pollen germination and an ovary which consist of ovules where fertilization take place.
成分
雄蕊的成分是花药和细丝。	成分of the pistil are a stigma, style, and ovary.
Function
Stamen is involved in the production and release of pollen grains.	这pistil is involved in receiving pollen grains, the formation of pollen tube and providing ovules for fertilization.