What is the Difference Between Auxin Gibberellin and Cytokinin

这关键区别between auxin gibberellin and cytokinin是生长素偏向于茎伸长的，而吉布林林的芽增长和种子发芽and cytokinins favor cell division.

Plant growth substances or hormones是植物生长，成熟，分化和植物健康稳定的必不可少的化学成分。它们主要是从根部分泌的，然后沿着植物旅行以促进生长。生长素，甘贝雷林和细胞分裂素是植物激素的主要群体之一。它们也是人为制造的，并得到补充，以促进植物在栽培和繁殖过程中的健康生长。

CONTENTS

1。概述和关键差异
2。什么是生长素
3。What is Gibberellin
4。What is Cytokinin
4。相似之处 - 生长素Gibberellin和细胞分裂素
5.生长素vs gibberellin vs细胞分裂素以表格形式
6.Summary

什么是生长素？

生长素是一组植物激素或植物生长物质。生长素在植物中的主要作用是通过促进茎生长来调节植物的生长。因此，生长素，偏爱细胞增殖和植物中茎的伸长。它们在细胞分裂和分化，水果和水果过程以及叶片秋季过程中也起着重要作用。生长素也通过在根的切割部位作用来生根。此外，他们采取了支持顶端优势的行动。

这structure of auxin is a single or double unsaturated ring containing a side chain. Beta–indolylacetic acid of IAA is the most prevalent naturally occurring type of auxin found in plants. It is composed of the amino acid tryptophan. IAA is also formed during the breakdown process of glycosides. Auxins can also be developed artificially and often used during crop cultivation.

什么是吉伯林？

Gibberellin，也称为Gibberellic Acid，是一种在种子，幼叶和根中发现的植物生长物质或植物激素。它们主要是在较低水平的植物以及某些真菌中发现的。主要是在真菌中发现了Gibberellin，Giberella Fujikuroi。吉布雷林的主要功能是促进芽的生长。但是，它们还参与了暴露于不同生理条件的特定植物物种的螺栓或伸长。此外，吉布林林还参与诱导种子发芽，开花过程以及植物中不同性类型的表达。它也有利于植物中的休眠和果实衰老。

Structurally, Gibberellin is a tetracyclic gibbane structure. The level of unsaturation of the structure is less and it does not have a side chain. Gibberellin synthesis is mainly done by the methylerythritol phosphate (MEP) pathway. The starting compound of synthesis is trans-geranylgeranyl diphosphate (GGDP). Gibberellin treatment is regularly done during crop cultivation to obtain fruits of increased sizes. In certain instances, Gibberellin treatment leads to the production of seedless grapes.

什么是细胞分裂素？

细胞分裂素是一种主要参与细胞分裂和细胞分化过程的植物激素。腺苷是合成细胞分裂素的起始化合物。植物中细胞分裂素的合成始于根部。然后，它们通过木质部向上移动到叶子和水果，刺激细胞分裂过程。因此，它们对于促进植物的正常生长至关重要。

此外，细胞分裂素还有助于与生长素一起抑制衰老。他们还参与稳定植物的蛋白质含量。这有助于植物保持健康并防止叶片泛黄。6-富裕氨基嘌呤（动力素）是一种在蔬菜储存过程中广泛使用的细胞分裂素。

What are the Similarities Between Auxin Gibberellin and Cytokinin?

• 生长素，胆红素和细胞分裂素是植物生长物质或植物激素。
• All favor the normal growth in plants.
• 这y are produced naturally in plants.
• However, all three hormones can be produced artificially to be used in crop cultivation and propagation.
• 它们是启动根部生产的化学物质。
• All three growth substances are used in artificial plant propagation, such as tissue culture, in varying combinations.
• Genetic recombination can alter the levels of production of these plant growth substances in plants.

What is the Difference Between Auxin Gibberellin and Cytokinin?

在植物中，生长素主要参加芽伸长，而吉布林蛋白主要促进种子发芽，细胞分裂素参与细胞分裂和分化。因此，这是生长素Gibberellin和细胞分裂素之间的关键区别。它们的化学结构也有所不同。生长素和细胞分裂素具有带有侧链的结构，而吉布雷林的结构无侧链。此外，生长素和细胞分裂素合成的起始化合物是腺苷，而在gibberellin中，它是反甘Ganylyylgeranyl二磷酸（GGDP）。

下图将生长素吉布林蛋白和细胞分裂素之间的差异列为并排比较。

Summary – Auxin vs Gibberellin vs Cytokinin

Plant hormones are vital in ensuring the steady and healthy growth of a plant. Auxin, Gibberellin and cytokinin are three important groups of plant hormones that originate in the roots of plants. Auxin takes part in shoot elongation, while gibberellins play an important role in seed germination and cytokinin in cell division and differentiation. Thus, this is the key difference between auxin gibberellins and cytokinin. Different combinations of these three facilitate optimum growth in different plant species. Though these are naturally produced in plants, these hormones have to be supplemented during artificial plant propagation. Therefore, they are also commercially produced on large scales, highlighting the market demand for these plant growth substances.

参考：

1. Egamberdieva，D.，Wirth，S.J.，Alqarawi，A。A.，Abd Allah，E。F.和Hashem，A。（2017年10月31日）。Phytohormones and Beneficial Microbes: Essential components for plants to BALANCE stress and fitness。Frontiers in microbiology.
2。Schaller, G. E., Bishopp, A., &Kieber, J. J. (2015, January).激素的阴阳：植物发育中的细胞分裂素和生长素相互作用。这Plant cell.

图片提供：

1。“Model for auxin transport” By Andyh12 – Own work(CC BY-SA 3.0)via Commons Wikimedia
2.“”gibberellins的影响” By Lee Spahr – Own work(CC BY-SA 3.0)via Commons Wikimedia
3.“”Zeatin” By Edgar181 – Own work (Public Domain) via Commons Wikimedia